U.S. patent application number 11/252596 was filed with the patent office on 2006-05-18 for flame simulating assembly.
This patent application is currently assigned to Dimplex North America Limited. Invention is credited to Martyn Champ, Kristoffer Hess, Michael Jach, Kelly Stinson.
Application Number | 20060101681 11/252596 |
Document ID | / |
Family ID | 35735353 |
Filed Date | 2006-05-18 |
United States Patent
Application |
20060101681 |
Kind Code |
A1 |
Hess; Kristoffer ; et
al. |
May 18, 2006 |
Flame simulating assembly
Abstract
A simulated fuel bed for simulating a combustible fuel in a
fire. The simulated fuel bed includes a plurality of simulated
combustible fuel elements, including one or more light-producing
simulated combustible fuel elements. A body of the light-producing
simulated combustible fuel element has one or more cavities
therein, and one or more light sources positioned to direct light
therefrom inside the cavity. The body includes an exterior surface
and one or more light-transmitting parts extending between the
cavity and the exterior surface. The light-transmitting part is
positioned in a path of light from the light source. The light from
the light source is transmittable through the light-transmitting
part to the exterior surface for simulating glowing embers of the
combustible fuel.
Inventors: |
Hess; Kristoffer;
(Cambridge, CA) ; Champ; Martyn; (Cambridge,
CA) ; Jach; Michael; (Kitchener, CA) ;
Stinson; Kelly; (Kitchener, CA) |
Correspondence
Address: |
VALENTINE A. COTTRILL
SUITE 1020 50 QUEEN STREET NORTH
KITCHENER
ON
N2H6M2
CA
|
Assignee: |
Dimplex North America
Limited
Cambridge
CA
|
Family ID: |
35735353 |
Appl. No.: |
11/252596 |
Filed: |
October 19, 2005 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
60628109 |
Nov 17, 2004 |
|
|
|
Current U.S.
Class: |
40/428 |
Current CPC
Class: |
F24C 7/004 20130101;
F24B 1/1808 20130101; B05D 5/00 20130101; G09F 19/12 20130101 |
Class at
Publication: |
040/428 |
International
Class: |
G09F 19/00 20060101
G09F019/00 |
Claims
1. A simulated fuel bed for simulating a solid combustible fuel in
a fire, the simulated fuel bed comprising: a plurality of simulated
combustible fuel elements, each said simulated combustible fuel
element comprising a body colored and formed for simulating an
entire combustible fuel element; said simulated combustible fuel
elements comprising at least one light-producing simulated
combustible fuel element; said body of said at least one
light-producing simulated combustible fuel element comprising at
least one cavity therein; said at least one light-producing
simulated combustible fuel element comprising at least one light
source positioned to direct light therefrom inside said at least
one cavity; said body of said at least one light-producing
simulated combustible fuel element additionally comprising: an
exterior surface; at least one light-transmitting part extending
between said at least one cavity and the exterior surface; and said
at least one light-transmitting part being positioned in a path of
said light from said at least one light source, said light from
said at least one light source being transmittable through said at
least one light-transmitting part to the exterior surface for
simulating glowing embers of the combustible fuel.
2. A simulated fuel bed according to claim 1 additionally
comprising a simulated ember bed, said plurality of simulated
combustible fuel elements being positionable at least partially
above the simulated ember bed.
3. A simulated fuel bed according to claim 1 additionally
comprising a controller to cause said light from said at least one
light source to pulsate for simulating light from glowing
embers.
4. A simulated fuel bed according to claim 3 in which the
controller causes said light from said at least one light source to
pulsate randomly.
5. A simulated fuel bed according to claim 3 in which the
controller causes said light from said at least one light source to
pulsate in a predetermined pattern.
6. A simulated fuel bed according to claim 5 in which the
predetermined pattern is determined in relation to images of flames
provided to simulate flames emanating from the simulated fuel
bed.
7. A simulated fuel bed according to claim 1 in which: said at
least one light-producing simulated combustible fuel element
comprises at least two light sources positioned to direct light
therefrom inside said at least one cavity; and the simulated fuel
bed additionally comprising a controller for causing light from
each of said at least two light sources to pulsate respectively for
simulating light from glowing embers.
8. A simulated fuel bed according to claim 7 in which each of said
at least two light sources pulsates independently.
9. A simulated fuel bed according to claim 7 in which each of said
at least two light sources provides light which is colored
differently, for simulating light from glowing embers.
10. A simulated fuel bed according to claim 1 additionally
comprising: a simulated grate element for simulating a grate; and
said plurality of combustible fuel elements being positionable on
the simulated grate element.
11. A simulated fuel bed according to claim 2 additionally
comprising: a simulated grate element for simulating a grate; and
the simulated ember bed being positionable substantially below the
simulated grate element.
12. A simulated fuel bed according to claim 1 comprising: at least
two light-producing simulated combustible fuel elements; and a
controller for causing said light from said at least one light
source respectively in each of said at least two light-producing
simulated combustible fuel elements to pulsate respectively for
simulating light from glowing embers.
13. A simulated fuel bed according to claim 1 in which each of said
at least two light-producing simulated combustible fuel elements
pulsates independently.
14. A simulated fuel bed according to claim 1 adapted for use with
a flame simulating assembly, the flame simulating assembly
comprising: a flame image subassembly for providing images of
flames; the flame image subassembly being positioned relative to
the simulated fuel bed such that the images of flames appear to
emanate from the simulated fuel bed; and the simulated fuel bed
additionally comprising a controller for causing said light from
said at least one light source to pulsate for simulating light from
glowing embers.
15. A simulated fuel bed according to claim 1 in which said body
comprises at least one aperture positioned relative to said at
least one light source for permitting said light from said at least
one light source to pass through said at least one aperture.
16. A simulated fuel bed according to claim 1 in which said at
least one light source comprises at least one LED.
17. A simulated fuel bed according to claim 16 in which said at
least one LED is mounted on a printed circuit board.
18. A simulated fuel bed according to claim 1 in which each said
body of each said simulated combustible fuel element and said body
of said at least one light-producing simulated combustible fuel
element are formed in at least one resiliently flexible mold.
19. A simulated fuel bed according to claim 18 in which each said
body is substantially comprised of a polyresin material.
20. A simulated combustible fuel element comprising: a body colored
and formed for simulating an entire combustible fuel element, the
body comprising at least one cavity therein; at least one light
source positioned substantially inside said at least one cavity;
the body additionally comprising: an exterior surface; at least one
light-transmitting part extending between said at least one cavity
and the exterior surface; said at least one light-transmitting part
being positioned in a path of light from said at least one light
source through which light from said at least one light source is
transmittable to the exterior surface for simulating glowing embers
of the combustible fuel; and the exterior surface comprising at
least one substantially opaque exterior part.
21. A simulated combustible fuel element according to claim 20 in
which said at least one light-transmitting part comprises an
exterior segment forming part of the exterior surface colored and
formed to resemble glowing embers of the combustible fuel upon
transmission therethrough of said light from said at least one
light source.
22. A simulated combustible fuel element according to claim 20 in
which said at least one light-transmitting part is substantially
noncolored.
23. A simulated combustible fuel element according to claim 20 in
which said at least one light-transmitting part is substantially
translucent.
24. A simulated combustible fuel element according to claim 20 in
which said at least one light source comprises at least one
LED.
25. A simulated combustible fuel element according to claim 24 in
which said light emitted by said at least one LED is colored.
26. A simulated combustible fuel element according to claim 25 in
which said light from said at least one LED is colored reddish.
27. A simulated combustible fuel element according to claim 20
additionally comprising a controller for causing said light from
said at least one light source to pulsate for simulating light from
glowing embers.
28. A flame simulating assembly comprising: a simulated fuel bed;
the flame image subassembly positioning said images of flames such
that said images of flames appear to emanate from the simulated
fuel bed; the simulated fuel bed comprising: a plurality of
simulated combustible fuel elements, each said simulated
combustible fuel element comprising a body colored and formed for
simulating an entire combustible fuel element; said combustible
fuel elements comprising at least one light-producing simulated
combustible fuel element; said body of said at least one
light-producing simulated combustible fuel element comprising at
least one cavity therein; said at least one light-producing
simulated combustible fuel element comprising at least one light
source positioned at least partially in said at least one cavity;
said body of said at least one light-producing simulated
combustible fuel element additionally comprising at least one
light-transmitting part positioned in a path of light from said at
least one light source; said at least one light-transmitting part
extending between said at least one cavity and the exterior surface
such that said at least one light-transmitting part resembles
glowing embers of the combustible fuel upon transmission
therethrough of light from said at least one light source; and a
controller for causing said light from said at least one light
source to pulsate for simulating light from glowing embers.
29. A flame simulating assembly according to claim 28 in which the
simulated fuel bed additionally comprises a simulated ember bed, on
which said simulated combustible fuel elements are positioned.
30. A flame simulating assembly according to claim 28 additionally
comprising a grate element for supporting said simulated
combustible fuel elements, said grate element being colored and
formed to simulate a fireplace grate.
31. A method of forming a simulated combustible fuel element
comprising the steps of: (a) providing a resiliently flexible mold
prepared using as a model a partially burned sample of a
combustible fuel element; (b) introducing a predetermined amount of
a liquefied body material into the mold; (c) rotating the mold to
produce a body comprising said body material and resembling the
entire combustible fuel element, the body including at least one
cavity and an exterior surface; (d) curing the body to solidify
said body material; (e) forming an access hole in the body in
communication with said at least one cavity; (f) inserting at least
one light source at least partially in the cavity through the
access hole, to locate said at least one light source in a
predetermined position; (g) inserting plug material into the access
hole, to substantially block the access hole; and (h) coating at
least a portion of the exterior surface in accordance with a
predetermined exterior surface pattern to provide (i) at least one
light-transmitting part positioned in a path of light from said at
least one light source, said at least one light-transmitting part
being colored to resemble glowing embers of the combustible fuel
upon transmission therethrough of light from said at least one
light source, and (ii) at least one substantially opaque exterior
part colored to resemble a non-ember part of the combustible
fuel.
32. A flame simulating assembly comprising: a flame image
subassembly for providing images of flames; a simulated fuel bed;
the flame image subassembly being positioned relative to the
simulated fuel bed such that said images of flames at least
partially appear to emanate from the simulated fuel bed; and a
controller for causing the flame image subassembly to provide a
predetermined sequence of changes in the images of flames.
33. A flame simulating assembly according to claim 32 in which the
predetermined sequence of changes comprises a gradual increase in
intensity of said images of flames.
34. A flame simulating assembly according to claim 33 in which upon
commencement of the predetermined sequence of changes said
intensity of said images of flames is relatively low, such that the
predetermined sequence of changes resembles a natural fire during
commencement thereof.
35. A flame simulating assembly according to claim 32 in which the
predetermined sequence of changes comprises a gradual decrease in
intensity of said images of flames.
36. A flame simulating assembly according to claim 35 in which the
predetermined sequence of changes causes said images of flames to
resemble a natural fire which is gradually dying.
37. A flame simulating assembly according to claim 32 in which the
predetermined sequence of changes proceeds at a preselected
rate.
38. A flame simulating assembly according to claim 37 in which the
preselected rate is determined by the controller.
39. A flame simulating assembly according to claim 32 in which the
controller is controllable by a user via a user interface and the
predetermined sequence of changes proceeds at a rate determined by
the user via the user interface.
40. A flame simulating assembly according to claim 32 additionally
comprising at least one fuel light source positioned in at least
one simulated fuel element in the simulated fuel bed, to simulate
glowing embers.
41. A flame simulating assembly according to claim 40 in which said
controller is adapted to cause said light provided by said at least
one fuel light source to vary.
42. A flame simulating assembly according to claim 41 in which said
controller causes light from said at least one light source to
pulsate such that said light imitates light from glowing
embers.
43. A flame simulating assembly according to claim 41 in which the
controller causes said light from said at least one fuel light
source to increase gradually in intensity.
44. A flame simulating assembly according to claim 41 in which the
controller causes said light from said at least one fuel light
source to decrease gradually in intensity.
45. A flame simulating assembly comprising: a flame image
subassembly for providing images of flames; a simulated fuel bed;
the flame image subassembly being positioned relative to the
simulated fuel bed such that said images of flames at least
partially appear to emanate from the simulated fuel bed; a heater
subassembly comprising at least one heater element; the heater
subassembly being adapted to operate in a basic heat mode, in which
the heater subassembly consumes a first amount of electrical power,
and also being adapted to operate in a reduced heat mode, in which
the heater subassembly consumes a second amount of electrical
power, the first amount being substantially greater than the second
amount; and a controller comprising means for converting the heater
subassembly between the basic heat mode and the reduced heat
mode.
46. A flame simulating assembly according to claim 45 additionally
comprising a thermostat for controlling the heater subassembly, the
thermostat being adapted to operate the heater subassembly in the
basic heat mode upon ambient temperature differing from a
preselected temperature by more than a predetermined difference,
and the thermostat being adapted to operate the heater subassembly
in the reduced heat mode upon ambient temperature differing from
the preselected temperature by less than the predetermined
difference.
47. A flame simulating assembly comprising: a simulated fireplace
comprising: a flame image subassembly for providing images of
flames; a simulated fuel bed; the flame image subassembly being
positioned relative to the simulated fuel bed such that said images
of flames at least partially appear to emanate from the simulated
fuel bed; a controller for controlling the simulated fireplace; an
occupancy sensor for detecting motion and operatively connected to
the controller, the occupancy sensor being adapted to send an
activation signal to the controller upon detection of motion, and
the occupancy sensor being adapted to send a de-activation signal
to the controller upon the sensor failing to detect motion during a
predetermined time period; and the controller being adapted to
activate the simulated fireplace upon receipt of the activation
signal and to de-activate the simulated fireplace upon receipt of
the de-activation signal.
48. A flame simulating assembly comprising: a simulated fireplace
comprising: a flame image subassembly for providing images of
flames; a simulated fuel bed; at least one light source for
supplying light having an intensity; the flame image subassembly
being positioned relative to the simulated fuel bed such that said
images of flames at least partially appear to emanate from the
simulated fuel bed; a controller for controlling the simulated
fireplace; an ambient light sensor for sensing ambient light
intensity, the ambient light sensor being adapted to transmit a
first signal to the controller upon said ambient light intensity
being greater than a predetermined first ambient light intensity,
and the ambient light sensor being adapted to transmit a second
signal upon said ambient light intensity being less than a
predetermined second ambient light intensity; the controller being
adapted to increase said intensity of said light provided by said
at least one light source upon receipt of the first signal, to a
predetermined maximum; and the controller being adapted to decrease
said intensity of said light provided by said at least one light
source upon receipt of the second signal, to a predetermined
minimum.
49. A flame simulating assembly according to claim 48 in which said
at least one light source comprises at least one toplight
positioned to direct light onto the simulated fuel bed, for
simulating light from flames.
50. A flame simulating assembly according to claim 48 in which said
at least one light source comprises at least one flame light source
supplying light for providing said images of flames.
51. A flame simulating assembly according to claim 48 in which said
at least one light source comprises at least one fuel light source
simulating glowing embers.
52. A flame simulating assembly comprising: a simulated fireplace
comprising: a flame image subassembly for providing images of
flames; a simulated fuel bed; at least one light source for
supplying light having an intensity; the flame image subassembly
being positioned relative to the simulated fuel bed such that said
images of flames at least partially appear to emanate from the
simulated fuel bed; a controller for controlling the simulated
fireplace; an ambient light sensor for sensing ambient light
intensity; and the ambient light sensor being adapted to cause the
controller to effect a preselected change in said intensity of said
light supplied by said at least one light source upon said ambient
light intensity differing from said intensity of said light from
said at least one light source to a predetermined extent.
53. A flame simulating assembly according to claim 52 in which said
intensity of said light from said at least one light source is
proportional to said ambient light intensity.
54. A flame simulating assembly according to claim 52 in which said
at least one light source comprises at least one toplight
positioned to direct light onto the simulated fuel bed, for
simulating light from flames.
55. A flame simulating assembly according to claim 52 in which said
at least one light source comprises at least one flame light source
supplying light for providing said images of flames.
56. A flame simulating assembly according to claim 48 in which said
at least one light source comprises at least one fuel light source
simulating glowing embers.
57. A flame simulating assembly comprising: a simulated fireplace
comprising: a flame image subassembly for providing images of
flames; a simulated fuel bed; the flame image subassembly being
positioned relative to the simulated fuel bed such that said images
of flames at least partially appear to emanate from the simulated
fuel bed; a controller for causing the flame image subassembly to
provide a predetermined sequence of changes in the images of
flames; a receiver operatively connected to the controller; a
remote control device for controlling the simulated fireplace, the
remote control device comprising: a user interface for receiving
input from the user and converting said input into input signals;
an occupancy sensor for detecting motion, said occupancy sensor
being adapted to generate occupancy-related signals upon detection
of motion; a microprocessor for converting the input signals and
the occupancy-related signals into output signals; and a
transmitter for transmitting the output signals to the receiver on
the simulated fireplace, whereby the simulated fireplace is
controllable by said input signals and said occupancy-related input
signals transmitted from said remote control device.
58. A flame simulating assembly according to claim 57 in which the
remote control device additionally comprises an ambient light
sensor.
59. A flame simulating assembly according to claim 57 in which the
remote control device additionally comprises a display screen for
displaying data regarding the input signals and the output
signals.
60. A flame simulating assembly according to claim 59 in which
input from the user is receivable via the display screen.
61. A flame simulating assembly according to claim 57 in which the
receiver comprises a transceiver, and information is transmitted to
the remote control device from the controller through the
transceiver.
62. A simulated fuel bed for simulating a combustible fuel in a
fire, the simulated fuel bed comprising: at least one
light-producing simulated combustible fuel element comprising a
body colored and formed for simulating an entire combustible fuel
element; said body of said at least one light-producing simulated
combustible fuel element comprising at least one cavity therein;
said at least one light-producing simulated combustible fuel
element comprising at least one light source positioned to direct
light therefrom inside said at least one cavity; said body of said
at least one light-producing simulated combustible fuel element
additionally comprising: an exterior surface; at least one
light-transmitting part extending between said at least one cavity
and the exterior surface; and said at least one light-transmitting
part being positioned in a path of said light from said at least
one light source, said light from said at least one light source
being transmittable through said at least one light-transmitting
part to the exterior surface for simulating glowing embers of the
combustible fuel.
63. A simulated fuel bed according to claim 62 additionally
comprising a simulated ember bed, said at least one light-producing
simulated combustible fuel element being positionable at least
partially above the simulated ember bed.
Description
[0001] This application claims the benefit of U.S. Provisional
Application No. 60/628,109, filed Nov. 17, 2004.
FIELD OF THE INVENTION
[0002] This invention is related to a flame simulating assembly for
providing images of flames.
BACKGROUND OF THE INVENTION
[0003] Various types of flame simulating assemblies, such as
electric fireplaces, are known. Many of the prior art flame
simulating assemblies include a simulated fuel bed which resembles
a burning solid combustible fuel, as well as embers and ashes
resulting from the combustion. For example, U.S. Pat. No. 566,564
(Dewey) discloses an electric heating apparatus with a cover (B')
which "is made . . . of a transparent or semitransparent material"
(p. 1, lines 50-52). The cover is "fashioned or colored" so that it
resembles coal or wood "in a state of combustion when light is
radiated through it" (p. 1, lines 53-57).
[0004] However, the use of a cover or a (partially translucent
shell) such as the cover disclosed in Dewey to imitate burning
solid combustible fuel has some disadvantages. First, a portion of
the shell typically is formed to simulate the fuel (e.g., logs),
and another portion of the shell simulates an ember bed (i.e.,
embers and ashes) which results from combustion of the fuel. For
instance, where the combustible fuel to be simulated is wood in the
form of logs, the logs are simulated in the shell by raised parts
which are integral to the shell, rather than pieces which are
physically separate from the ember bed. Because it is evident from
even a cursory observation of this type of prior art simulated fuel
bed that the raised parts (i.e., simulated logs) are actually
formed integrally with the simulated ember bed part of the shell,
this type of simulated fuel bed tends to detract from the
simulation effect sought.
[0005] Another disadvantage of the prior art results from
characteristics of the typical light source which is intended to
provide light which imitates the light produced by glowing embers
in a real fire. In the prior art, the same light source is often
used to provide both a flame effect (i.e., to simulate flames), and
an ember simulation effect (i.e., to simulate glowing embers).
However, the characteristics of light from embers are somewhat
different from those of light from flames. For instance, embers
generally tend to glow, and pulsate, but flames tend to flicker,
and move. Because of these differences, attempts in the prior art
to use the same light source to provide a flame simulation effect
and a burning ember simulation effect have had somewhat limited
success.
[0006] Also, the positioning of the light source intended to
provide the ember simulation effect is somewhat unsatisfactory in
the prior art. In a natural fire, most glowing embers are located
on partially-consumed fuel, and the balance of the glowing embers
are located in the ember bed. However, in the prior art, the
relevant light source is positioned somewhat lower than the
simulated fuel portions, i.e., beneath the shell. Accordingly,
because the light which is simulating the light from glowing embers
is located well below the shell, an observer can easily see that
the light does not originate in the vicinity of the raised portions
representing logs, but instead is originating from below the shell.
In this way, the usual location of the light source in the prior
art undermines the simulation effect.
[0007] U.S. Pat. No. 2,285,535 (Schleft) discloses an attempt to
address the problem of the fuel parts being obviously integrally
formed with the simulated ember bed. Schlett discloses a "fireplace
display" including "an arrangement of actual fuel or of a fuel
imitation . . . such as imitation wood logs" (p. 1, lines 22-24).
In Schlett, therefore, the problem of the simulated logs appearing
unrealistically to be part of the simulated ember bed is apparently
addressed by the "fuel" (i.e., either actual logs or imitation
logs, and also either actual lumps of coal or imitations thereof)
being presented as discrete physical entities in the absence of an
ember bed (as shown in FIG. 2 in Schlett). Also, Schlett does not
disclose any attempt to simulate glowing embers in the fuel.
[0008] WO 01/57447 (Ryan) discloses another attempt to provide a
more realistic simulated fuel bed. Ryan discloses "hollow simulated
logs", each of which includes an ultraviolet light tube (p. 11,
lines 25-27). The simulated logs are described as preferably being
made from cardboard tubing, but also may be constructed in other
ways (p. 12, lines 18-27 and p. 13, line 1). An ember simulator is
provided which is painted with fluorescent paint (p. 18, lines
4-6). Also, silk flame elements, meant to simulate flames, are
treated so that they fluoresce when exposed to ultraviolet light
from the ultraviolet light tubes positioned in the cardboard
tubing. The tubing includes apertures to permit exposure of
fluorescent elements to ultraviolet light from inside the tubing.
However, the tubing appears unrealistic in appearance, and the
fluorescing portions would appear to be unconvincing imitations of
flames and embers, which would generally not be fluorescent in a
natural fire.
[0009] In addition, the flame simulating assemblies of the prior
art typically do not provide for control, beyond activation and
de-activation, of the light sources providing images of flames or
other light sources. In particular, prior art flame simulating
assemblies do not typically include controls which provide for
increases or decreases in the intensity of the light provided by
one or more light sources in relation to ambient light
intensity.
[0010] There is therefore a need for a simulated fuel bed to
overcome or mitigate at least one of the disadvantages of the prior
art.
SUMMARY OF THE INVENTION
[0011] In its broad aspect, the invention provides a simulated fuel
bed for simulating a solid combustible fuel in a fire. The
simulated fuel bed includes a plurality of simulated combustible
fuel elements. Each said simulated combustible fuel element has a
body colored and formed for simulating an entire combustible fuel
element. The simulated combustible fuel elements include one or
more light-producing simulated combustible fuel elements. The body
of the light-producing simulated combustible fuel element has one
or more cavities therein. The light-producing simulated combustible
fuel element has one or more light sources positioned to direct
light therefrom inside the cavity. The body of the light-producing
simulated combustible fuel element also includes an exterior
surface and one or more light-transmitting parts extending between
the cavity and the exterior surface. Also, the light-transmitting
part is positioned in a path of light from the light source. The
light from the light source is transmittable through the
light-transmitting part to the exterior surface for simulating
glowing embers of the combustible fuel.
[0012] In another aspect, the simulated fuel bed additionally
includes a simulated ember bed. The simulated combustible fuel
elements are positionable at least partially above the simulated
ember bed.
[0013] In another of its aspects, the simulated fuel bed includes a
controller to cause the light from the light source to pulsate for
simulating light from glowing embers.
[0014] In yet another aspect, the body includes one or more
apertures positioned relative to the light source for permitting
said light from the light source to pass through the aperture.
[0015] In another of its aspects, the invention provides a flame
simulating assembly including a flame image subassembly for
providing images of flames and a simulated fuel bed. The flame
image subassembly positions the images of flames so that said
images of flames appear to emanate from the simulated fuel bed. The
simulated fuel bed includes a plurality of simulated combustible
fuel elements, each of the simulated combustible fuel elements
having a body colored and formed for simulating an entire
combustible fuel element. The combustible fuel elements include one
or more light-producing simulated combustible fuel elements. The
body of the light-producing simulated combustible fuel element has
a cavity therein. The light-producing simulated combustible fuel
element also has one or more light sources positioned at least
partially in the cavity. The body of the light-producing simulated
combustible fuel element additionally has one or more
light-transmitting parts positioned in a path of light from the
light source. The light-transmitting part extends between the
cavity and the exterior surface so that the light-transmitting part
resembles glowing embers of the combustible fuel upon transmission
therethrough of light from the light source. The simulated fuel bed
also includes a controller for causing the light from the light
source to pulsate for simulating light from glowing embers.
[0016] In another aspect, the invention includes a method of
forming a simulated combustible fuel element. The method includes
the steps of first, providing a resiliently flexible mold prepared
using as a model a partially burned sample of a combustible fuel
element, and second, introducing a predetermined amount of a
liquefied body material into the mold. The third step is rotating
the mold to produce a body comprising the body material and
resembling the entire combustible fuel element. The body includes
one or more cavities and an exterior surface. Next, the body
material is cured, to solidify the body material. In the fifth
step, an access hole is formed in the body in communication with
the cavity, and in the sixth step, one or more light sources are
inserted at least partially in the cavity through the access hole,
to locate the light source in a predetermined position. The next
step involves inserting plug material into the access hole, to
substantially block the access hole. The final step involves
coating at least a portion of the exterior surface in accordance
with a predetermined exterior surface pattern to provide (i) one or
more light-transmitting parts positioned in a path of light from
the light source (the light-transmitting part being colored to
resemble glowing embers of the combustible fuel upon transmission
therethrough of light from the light source), and (ii) one or more
substantially opaque exterior parts colored to resemble a non-ember
part of the combustible fuel.
[0017] In yet another aspect, the invention provides a flame
simulating assembly including a flame image subassembly for
providing images of flames and a simulated fuel bed, the flame
image subassembly being positioned relative to the simulated fuel
bed so that the images of flames at least partially appear to
emanate from the simulated fuel bed. The flame simulating assembly
also includes a controller for causing the flame image subassembly
to provide a predetermined sequence of changes in the images of
flames.
[0018] In another aspect, the predetermined sequence of changes
includes a gradual increase in intensity of the images of
flames.
[0019] In yet another aspect, upon commencement of the
predetermined sequence of changes the intensity of the images of
flames is relatively low, so that the predetermined sequence of
changes resembles a natural fire during commencement thereof.
[0020] In another of its aspects, the predetermined sequence of
changes includes a gradual decrease in intensity of said images of
flames.
[0021] In yet another aspect, the predetermined sequence of changes
causes the images of flames to resemble a natural fire which is
gradually dying.
[0022] In another of its aspects, the predetermined sequence of
changes proceeds at a preselected rate.
[0023] In another aspect, the preselected rate is determined by the
controller.
[0024] In another aspect, the controller is controllable by a user
via a user interface and the predetermined sequence of changes
proceeds at a rate determined by the user via the user
interface.
[0025] In yet another aspect, the flame simulating assembly
additionally includes one or more fuel light sources positioned in
one or more simulated fuel elements in the simulated fuel bed, to
simulate glowing embers.
[0026] In another of its aspects, the controller is adapted to
cause the light provided by the fuel light source to vary.
[0027] In another of its aspects, the invention includes a flame
simulating assembly including a heater subassembly comprising at
least one heater element, the heater subassembly being adapted to
operate in a basic heat mode, in which the heater subassembly
consumes a first amount of electrical power, and also being adapted
to operate in a reduced heat mode, in which the heater subassembly
consumes a second amount of electrical power, the first amount
being substantially greater than the second amount. The flame
simulating assembly also includes a controller comprising means for
converting the heater subassembly between the basic heat mode and
the reduced heat mode.
[0028] In yet another of its aspects, the flame simulating assembly
additionally includes a thermostat for controlling the heater
subassembly, the thermostat being adapted to operate the heater
subassembly in the basic heat mode upon ambient temperature
differing from a preselected temperature by more than a
predetermined difference, and the thermostat being adapted to
operate the heater subassembly in the reduced heat mode upon
ambient temperature differing from the preselected temperature by
less than the predetermined difference.
[0029] In another of its aspects, the invention provides a flame
simulating assembly including a simulated fireplace with a flame
image subassembly for providing images of flames and a simulated
fuel bed, the flame image subassembly being positioned relative to
the simulated fuel bed so that the images of flames at least
partially appear to emanate from the simulated fuel bed. The flame
simulating assembly also includes a controller for controlling the
simulated fireplace and an occupancy sensor for detecting motion
and operatively connected to the controller. The occupancy sensor
is adapted to send an activation signal to the controller upon
detection of motion, and the occupancy sensor is also adapted to
send a de-activation signal to the controller upon the sensor
failing to detect motion during a predetermined time period. The
controller is adapted to activate the simulated fireplace upon
receipt of the activation signal, and to de-activate the simulated
fireplace upon receipt of the de-activation signal.
[0030] In yet another of its aspects, the invention provides a
flame simulating assembly including a simulated fireplace with a
flame image subassembly for providing images of flames, a simulated
fuel bed, and one or more light sources for supplying light having
an intensity. The flame image subassembly is positioned relative to
the simulated fuel bed so that the images of flames at least
partially appear to emanate from the simulated fuel bed. The flame
simulating assembly also includes a controller for controlling the
simulated fireplace and an ambient light sensor for sensing ambient
light intensity. The ambient light sensor is adapted to transmit a
first signal to the controller upon the ambient light intensity
being greater than a predetermined first ambient light intensity,
and the ambient light sensor is adapted to transmit a second signal
upon the ambient light intensity being less than a predetermined
second ambient light intensity. The controller is adapted to
increase the intensity of the light provided by the light source
upon receipt of the first signal, to a predetermined maximum. The
controller is also adapted to decrease the intensity of the light
provided by the light source upon receipt of the second signal, to
a predetermined minimum.
[0031] In another aspect, the invention provides a flame simulating
assembly including a simulated fireplace with a flame image
subassembly for providing images of flames and a simulated fuel
bed, the flame image subassembly being positioned relative to the
simulated fuel bed so that the images of flames at least partially
appear to emanate from the simulated fuel bed. The flame simulating
assembly also includes a controller for causing the flame image
subassembly to provide a predetermined sequence of changes in the
images of flames, a receiver operatively connected to the
controller, and a remote control device for controlling the
simulated fireplace. The remote control device includes a user
interface for receiving input from the user and converting the
input into input signals, an occupancy sensor for detecting motion,
the occupancy sensor being adapted to generate occupancy-related
signals upon detection of motion, and a microprocessor for
converting the input signals and the occupancy-related signals into
output signals. The remote control device also includes a
transmitter for transmitting the output signals to the receiver on
the simulated fireplace, so that the simulated fireplace is
controllable by the input signals and the occupancy-related input
signals transmitted from the remote control device.
[0032] In yet another aspect, the remote control device
additionally includes an ambient light sensor.
[0033] In another aspect, the remote control device includes a
display screen for displaying data regarding the input signals and
the output signals.
[0034] In another of its aspects, the invention includes a
simulated fuel bed for simulating a combustible fuel in a fire. The
simulated fuel bed includes one or more light-producing simulated
combustible fuel elements with a body colored and formed for
simulating an entire combustible fuel element. The body of the
light-producing simulated combustible fuel element has one or more
cavities therein. The light-producing simulated combustible fuel
element also has one or more light sources positioned to direct
light therefrom inside the cavity. The body of the light-producing
simulated combustible fuel element also has an exterior surface and
one or more light-transmitting parts extending between the cavity
and the exterior surface. The light-transmitting part is positioned
in a path of light from the light source, the light from the light
source being transmittable through the light-transmitting part to
the exterior surface for simulating glowing embers of the
combustible fuel.
[0035] In yet another aspect, the simulated fuel bed additionally
includes a simulated ember bed. The light-producing-simulated
combustible fuel element is positionable at least partially above
the simulated ember bed.
BRIEF DESCRIPTION OF THE DRAWINGS
[0036] The invention will be better understood with reference to
the drawings, in which:
[0037] FIG. 1 is an isometric view of a top side and an end of an
embodiment of an embodiment of simulated solid combustible fuel
element of the invention;
[0038] FIG. 2 is a bottom view of the simulated solid combustible
fuel element of FIG. 1;
[0039] FIG. 3 is a cross-section of an embodiment of the simulated
solid combustible fuel element of the invention, drawn at a larger
scale;
[0040] FIG. 4A is a cross-section of an embodiment of a simulated
fuel bed of the invention, drawn at a larger scale;
[0041] FIG. 4B is a cross-section of an alternative embodiment of
the simulated fuel bed of the invention;
[0042] FIG. 5 is a functional block diagram schematically
representing a method of forming the simulated solid combustible
fuel elements of the invention;
[0043] FIG. 6 is a front view of an embodiment of a flame
simulating assembly of the invention;
[0044] FIG. 7 is a functional block diagram schematically
representing an embodiment of the simulated fuel bed of the
invention;
[0045] FIG. 8 is a cross-section of the flame simulating assembly
of FIG. 6;
[0046] FIG. 9 is a cross-section of an alternative embodiment of
the flame simulating assembly of the invention;
[0047] FIG. 10 is a functional block diagram of an alternative
embodiment of the invention;
[0048] FIG. 11 is a functional block diagram of another embodiment
of the invention;
[0049] FIG. 12 is an isometric view of an embodiment of a remote
control device of the invention;
[0050] FIG. 13 is an elevation view of a side of the remote control
device of FIG. 12;
[0051] FIG. 14 is an elevation view of a back end of the remote
control device of FIG. 12;
[0052] FIG. 15 is an elevation view of a front end of the remote
control device of FIG. 12; and
[0053] FIG. 16 is a functional block diagram illustrating
functional aspects of the remote control device of the
invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT(S)
[0054] Reference is first made to FIGS. 1-7 to describe an
embodiment of a simulated fuel bed in accordance with the invention
indicated generally by the numeral 20 (FIGS. 4A, 4B). The simulated
fuel bed 20 is for simulating a solid combustible fuel burning, and
partially consumed, in a natural fire. Preferably, the simulated
fuel bed 20 includes a number of simulated solid combustible fuel
elements 22 (FIGS. 7, 8), for simulating fuel elements which have
not been consumed by the fire, or have only partially been
consumed. Each simulated combustible fuel element 22 has a body 24
which is colored and formed to resemble an entire solid combustible
fuel element, as will be described.
[0055] As shown in FIGS. 4A, 4B and 5, the elements 22 are
preferably arranged in a pile 25, for instance, to imitate a pile
of wooden logs in a natural fire. It will be understood that the
simulated fuel elements 22 may, in the alternative, be formed and
colored to resemble pieces of coal. Where the simulated fuel
elements 22 are formed to resemble pieces of coal, the simulated
fuel elements 22 are preferably arranged in a pile, positioned to
resemble a pile of coal in a natural fire.
[0056] Preferably, the simulated solid combustible fuel elements 22
include one or more light-producing simulated solid combustible
fuel elements 26. In one embodiment, each light-producing simulated
solid combustible fuel element 26 preferably has a body 28 which is
also colored and formed to resemble an entire solid combustible
fuel element, and which includes one or more cavities 30 therein.
The light-producing simulated solid combustible fuel element 26
also preferably includes one or more fuel light sources 32 which
are positioned to direct light therefrom inside the cavity 30. As
will be described, the light sources 32 in each light-producing
simulated solid combustible fuel element 26 are preferably included
in a fuel light source subassembly 33. Preferably, the pile 25
includes more than one light-providing simulated fuel element 26,
and the elements 26 are positioned and arranged in the pile 25 for
optimum simulation of a natural fire, as will be described. It will
be understood that, alternatively, only one light-producing
simulated fuel element 26 may be used, if desired.
[0057] In one embodiment, the body 28 additionally includes an
exterior surface 34 and one or more light-transmitting parts 36
extending between the cavity 30 and the exterior surface 34. Each
light-transmitting part 36 is preferably positioned in a path of
light from the light source 32, as shown schematically by arrow "A"
in FIG. 3. Light from the fuel light source 32 is transmittable
through the light-transmitting part 36 to the exterior surface 34
for simulating glowing embers of the combustible fuel.
[0058] Preferably, and as shown in FIGS. 1 and 2, the bodies 24 of
the simulated solid combustible fuel elements 22 are textured to
resemble the exterior surfaces of actual solid combustible fuel
elements (e.g., wooden logs or pieces of coal) which are partially
burned, as will be described. Also, the entire body 24 of each
simulated fuel element 22 closely resembles the entire exterior
surface of the actual combustible fuel, for a more realistic
simulation effect (FIGS. 1-3). It will be understood that the
elements 22 are not shown in FIGS. 4A, 4B and 8-9 with detailed
exterior surfaces (i.e., as shown in FIGS. 1-3) only in order to
simplify the drawings. Because of the process used to form the
elements 22, the exterior surfaces thereof include many realistic
features, as will be described.
[0059] In one embodiment, the fuel light source subassembly 33
preferably includes two or more light sources 32 which are
positioned to direct light therefrom inside the cavity 30 to the
light-transmitting part 36. Also, it is preferred that each light
source 32 is a light-emitting diode (LED). The fuel light source
subassembly 33 preferably also includes a printed circuit board
(PCB) 37 on which the LEDs 32 are mounted. It will be understood
that the PCB 37 includes the necessary circuitry and other
electronic components required for operation of the LEDs 32, as is
known in the art. The PCB 37 is connectable to a source of
electrical power (not shown), for operation of the LEDs 32. The
manner in which the PCB 37 is connected to the power source is not
shown in the drawings because it is well known in the art.
[0060] In the preferred embodiment, and as can be seen in FIG. 3,
the light-producing simulated solid combustible fuel element 26
includes the PCB 37 and LEDs 32 mounted thereon (i.e., the fuel
light source subassembly 33) located in the cavity 30. The
connection of the PCB 37 to the power source may be, for example,
via wires (not shown) electrically connected to the PCB 37 inside
the cavity 30, and also electrically connected to the power source
outside the body 28 of the light-producing simulated solid
combustible fuel element 26, for transmission of electrical power
to the fuel light source subassembly 33. It will also be understood
that various power sources (e.g., batteries positioned inside the
cavity 30) could be used with the light source subassembly 33.
[0061] As can be seen in FIG. 3, the light-transmitting part 36 is
located between a preselected part 38 of the exterior surface 34
and the cavity 30. Preferably, the preselected part 38 is a portion
of the exterior surface 34 which has been treated (or left
untreated, as the case may be) so that it is capable of
substantially transmitting light, and other parts 39 of the
exterior surface 34 have been treated so that they substantially
block light. The body 28 is preferably formed of a material which
is at least partially translucent, as will be described. For
reasons further described below, the body material preferably is
white in color.
[0062] Preferably, and with a view to achieving a realistic
appearance, the exterior surface is substantially covered with
paint or any suitable coloring agent, in any suitable colors (e.g.,
black and/or grey and/or brown), mixed and/or positioned as
required. However, it is preferred that the paint (or coloring
agent) is spread only thinly, or not at all, in or on the
preselected parts 38 on the exterior surface 34 which are intended
to allow light to be transmitted therethrough, for simulating
glowing embers. The preselected parts 38 may be substantially
exposed areas 42, and also preferably include one or more crevices
40 (FIG. 3).
[0063] For example, the paint or other coloring agent is preferably
applied so that it is relatively thin in a substantially exposed
area 42, and also so that the paint substantially does not cover
the crevice 40 (FIG. 3). Because of this, light from the light
source 32 is transmittable directly through the crevice 40 and also
through the exposed area 42.
[0064] The parts 39 of the exterior surface 34 which are not
intended to simulate glowing embers preferably are treated so that
they have sufficient paint (or coloring agent) on them to block
light from the fuel light source(s) 32. For example, where the fuel
which is simulated is wood, the parts 39 preferably resemble the
parts of a burning natural log which do not include glowing embers.
As shown in FIGS. 1-3, the body 28 preferably resembles an entire
log, and the exterior surface 34 therefore preferably includes both
one or more preselected parts 38 intended to simulate glowing
embers and other parts 39 which are not intended to simulate
glowing embers in configurations and arrangements which imitate and
resemble different parts respectively of a burning natural log.
Similarly, where the fuel which is simulated is coal, the body 28
preferably resembles an entire piece of coal.
[0065] The color of the light produced by the fuel light source 32
and the color of the translucent material of the body 28 which
includes the light-transmitting part 36 preferably are selected so
as to result in a realistic simulation of burning fuel. In one
embodiment, the body 28 preferably is primarily a white translucent
material (i.e., with paint or any other suitable coloring agent
applied on the exterior surface 34, as described above), and the
light produced by the fuel light source 32 is any suitable shade of
the colors red, yellow or orange or any combination thereof,
depending on the burning fuel which the simulated fuel bed 20 is
intended to resemble. The term reddish, as used herein, refers to
any suitable color or combination or arrangement of colors used in
the simulated fuel bed 20 to simulate colors of burning or glowing
embers in a natural fire, and/or flames in a natural fire.
[0066] Also, the body 28 preferably includes one or more cracks or
apertures 44 through which light from the fuel light source 32 is
directly observable. The intensity of light from glowing embers in
different locations in a natural fire varies. Accordingly, because
the light from the fuel light sources 32 which is directly
observable is brighter than the light from the sources 32
transmitted through the light-transmitting portions 36, the cracks
or apertures 44 provide a realistic simulation due to the variation
in intensity of the light from the light source 32 which the cracks
or apertures 44 provide, i.e., as compared to the light from the
fuel light sources 32 transmitted through the light-transmitting
parts 36. In addition to cracks or apertures 44 which may be
intentionally formed in the body 28 upon its creation (i.e., in
accordance with a predetermined pattern), other cracks or apertures
may be formed in the body 28, i.e., other than pursuant to a
predetermined pattern. Such cracks or apertures may be formed when
the body 28 is created, or they may be formed later, e.g., the
simulated fuel elements 22 may crack after an extended period of
time. For this reason also, it is preferable that the fuel light
sources 32 provide reddish light.
[0067] However, it will be understood that other arrangements are
possible. For example, in an alternative embodiment, the body
material of the light-producing simulated fuel element 26 is
colored reddish, and in this case, the light produced by the fuel
light source 32 preferably is substantially white, i.e.,
uncolored.
[0068] Preferably, the simulated combustible fuel elements 22 are
formed in a silicone rubber mold (FIG. 5). The silicone rubber mold
is resiliently flexible. Preferably, a thermoset material (e.g.,
polyurethane), substantially liquefied, is poured into the mold,
which is then rotated (step 1002, FIG. 5). Preferably, the amount
of material is sufficient to form the body 28, but also
insufficient to form a solid body, so that the cavity 30 is formed
inside the body 28 The rotation of the mold is in accordance with
rotational molding generally, and will not be described here in
detail because it is well known in the art. After rotation, the
material is cured (step 1004, FIG. 5). After curing, the mold is
peeled off (step 1006, FIG. 5), and realistic surface features such
as undercuts (FIG. 3) can be provided. This procedure results in
simulated fuel elements 22 with exterior surfaces having a
detailed, irregular and realistic texture, such as the elements 22
shown in FIGS. 1-3, simulating an entire exterior surface of a
natural log including undercuts 46 (FIG. 3). For example, as can be
seen in a detailed area 49 in FIG. 1, the exterior surface 34 may
include a plurality of ridges 48 simulating a surface of a
semi-burned log. (It will be understood that the area 49 shown in
FIG. 1 is exemplary only, and the balance of the surface 34 is
understood to resemble the portions of the surface 34 illustrated
in area 49. The details of the ridges 48 have not been shown
outside the area 49 in FIG. 1, and in FIG. 2 for simplicity of
illustration.)
[0069] In order to create the silicone rubber mold (step 1000, FIG.
5), first, a sample of semi-burned combustible fuel (e.g., a
partially burned log) is covered in silicone rubber, which is then
allowed to set. The silicone rubber mold is cut, and then separated
from the sample log. Preferably, only one cut is made in the mold.
For example, a single cut along a length of the mold large enough
to facilitate removal of the sample log is preferred. In most
cases, a significant amount of debris (i.e., small pieces of wood
which fell off the log) remains in the first mold. In practice, a
second mold is required to be taken, in order to obtain a mold
which accurately reproduces the surface of the sample but does not
include a significant amount of debris. To obtain the second mold,
the process described for the first mold is repeated. The second
mold tends to have less debris because, for a particular sample
log, most of the debris is removed by the first mold. It will be
understood that a plurality of sample logs are used in order to
provide simulated fuel elements with different bodies, for a more
realistic simulation effect.
[0070] Where the fuel which is to be simulated is coal, the same
procedure is used to create the simulated fuel elements 22, with
sample pieces of coal.
[0071] Preferably, the body 28 of the light-producing simulated
fuel element 26 is formed so that it includes the cavity 30
therein. As noted above, it is preferred that, once solidified, the
body 28 is at least partially translucent. In the alternative, the
body 28 of the light-producing simulated fuel element 26 may be
made without the cavity 30 formed therein. However, in this case,
the cavity 30 is subsequently formed in the body 28, by any other
suitable means, e.g., drilling.
[0072] As described above, it will be understood that the simulated
fuel element 22 which are not light-producing elements 26 may not
include the cavity 30. Preferably, the exteriors of the simulated
elements 22 which are not light-producing are substantially the
same as the exteriors of the light-producing simulated fuel
elements 26.
[0073] Preferably, when the body 28 of the light-producing fuel
element 26 is formed, the body represents the entire log. However,
in order to permit the light source subassembly 33 to be inserted
into the cavity 30 where the cavity 30 was formed during the
creation of the body 28, an aperture 50 preferably is formed in the
body 28 which is in communication with the cavity 30. The aperture
50 may be formed in any suitable manner, such as, for example, by
drilling.
[0074] Preferably, the light assembly 33 (FIG. 4A, 4B), is inserted
into the cavity 30 through the aperture 50, to position the LEDs 32
relative to the light-transmitting part(s) 36 as required. After
the light assembly 33 has been positioned in the cavity 30, a plug
52 of material is inserted into the aperture 50. The plug material
may be any suitable material. Preferably, the plug material is the
thermoset material of the body 28 which is cured and colored
similarly to the parts of the exterior surface 34 which are
adjacent to the aperture 50. If electrical wires are used to
connect the PCB 37 to an electrical power source, then such wires
are preferably allowed to extend through the aperture 50 before the
plug 52 is emplaced in the aperture. The wires are preferably
positioned so that they are not generally noticeable to an observer
when the light-producing simulated fuel element 26 is positioned in
the pile 25 with other elements 22.
[0075] As shown in FIG. 6, the pile 25 of simulated fuel elements
22 preferably is positioned in a housing 54 of a simulated
fireplace 56. The pile 25 has a central region 58 which is
generally positioned centrally relative to the simulated fireplace
housing 54. In imitation of a natural fire, portions 60 of the
light-producing simulated fuel elements 26 which are located
substantially in the central region 58 preferably are treated so
that a plurality of light-transmitting parts 36 are located in the
portions 60. However, end portions 62 of the light-producing
simulated fuel elements 26 which are generally positioned outside
the central portion 58 preferably have relatively fewer
light-transmitting portions 36. In one embodiment, the fuel light
sources 32 are positioned inside the simulated fuel elements 26
substantially in the portions 60. In the alternative, however, the
light sources 32 are positioned in the end portions 62 as well as
the portions 60, and relatively more paint is layered on the end
portions 62 so that light is substantially not directed out of the
end portions 62. The central positioning of the light-transmitting
portions 36 in the pile 25 results in an improved simulation of
glowing embers.
[0076] Preferably, the simulated fuel bed 20 also includes a
controller 64 (FIG. 7) for controlling the fuel light source 32.
For instance, the fuel light source 32 may be controlled by the
controller 64 to provide pulsating light, for simulating light from
glowing embers. In one embodiment, the controller 64 causes light
from the light source 32 to pulsate randomly.
[0077] In another embodiment, the controller 64 causes the light
from the fuel light source 32 to pulsate systematically, and/or in
a predetermined pattern. Preferably, the predetermined pattern in
which the light from the fuel light source 32 pulsates is
determined in relation to images of flames 66 which are provided in
the simulated fireplace 56, to simulate flames emanating from the
simulated fuel bed 20 (FIG. 6).
[0078] The controller 64 preferably includes one or more modules
68, including a memory storage means 70 and a user interface 72.
The controller 64 can include, for example, firmware which provides
options selectable by a user (not shown) via the user interface 72.
In addition, or in the alternative, direct (manual) control by the
user via the user interface 72 may be permitted. Alternatively, the
controller 64 could be programmed to cause variations in the light
produced by the LEDs 32 in accordance with a predetermined sequence
in a program stored in memory 70. The controller 64 also preferably
includes any suitable means for causing light created by the light
source 32 to vary as required, e.g., a triac to vary voltage as
required, as is known in the art.
[0079] As shown in FIG. 6, the simulated fuel bed 20 is preferably
positioned in the simulated fireplace 56. In one embodiment, the
simulated fireplace 56 includes a flame image subassembly 74, for
providing the images of flames 66. The simulated fuel bed 20 is
preferably positioned in the simulated fireplace 56 so that the
images of flames 66 appear to emanate from the simulated fuel bed
20. Such arrangements are disclosed, for example, in U.S. Pat. Nos.
5,642,580 and 6,050,011. Each of U.S. Pat. No. 5,642,580 and U.S.
Pat. No. 6,050,011 is hereby incorporated herein by reference.
[0080] Also, the controller 64 is programmable to modulate the fuel
light source 32 in accordance with one or more selected
characteristics of the images of flames 66. For instance, in one
embodiment, the controller 64 preferably is programmed so that,
upon the speed of rotation of an element in the flame image
sub-assembly 74 increasing (i.e., to result in images of flames 66
which flicker faster), the controller 64 causes the rate of
pulsation of light from the light source 32 to increase
proportionately, but also realistically. It is preferred that
increases in pulsation not correspond directly (i.e., linearly) to
increases in the rate at which the flame effect flickers.
[0081] In another embodiment, the simulated fireplace 56 also
includes one or more toplights 75 positioned above the simulated
fuel bed 20 (FIG. 6). The toplight 75 provides light directed
downwardly onto the simulated fuel bed 20 and simulates light from
flames which illuminates the fuel in a natural fire, thereby adding
to the simulation effect provided by the simulated fireplace 56.
The use of a toplight in a simulated fireplace is described in U.S.
Pat. No. 6,385,881, which is hereby incorporated hereby by
reference.
[0082] In another embodiment, the controller 64 is programmable to
modulate the toplight 75, for example, in accordance with one or
more selected characteristics of the images of flames 66.
[0083] As described above, the LEDs 32 can be constructed so as to
emit light having different colors. Preferably, LEDs 32 which
produce different colors are arranged relative to each other in an
element 26, and also in a plurality of elements 26, and modulated
by the controller 64 to produce pulsating light respectively,
together or separately as the case may be, to provide a realistic
glowing ember effect through the light-transmitting part 36. Each
of the light sources 32 is adapted to pulsate independently in
accordance with signals received from the controller 64, if so
desired.
[0084] The arrangements of the LEDs 32 relative to each other
preferably takes into account LEDs inside the same light-producing
simulated fuel element 26. In addition, however, the positioning of
LEDs 32 producing light with various colors should also take into
account the LEDs 32 in all of the light-producing fuel elements 26
in the pile 25, and in particular, LEDs 32 positioned in adjacent
elements 26.
[0085] In one embodiment, the simulated fuel bed 20 preferably
includes a simulated ember bed 76 (FIG. 4A). In this embodiment,
the plurality of simulated combustible fuel elements 22 are
preferably positionable at least partially above the simulated
ember bed 76, as shown in FIG. 4A.
[0086] As can also be seen in FIGS. 4B and 6, the simulated fuel
bed optionally includes a simulated grate element 78 for simulating
a grate in a fireplace. The simulated combustible fuel elements 22
are positionable on the simulated grate element 78. It is preferred
that an alternative embodiment of a simulated ember bed 80 also is
positioned beneath the grate element 78.
[0087] In use, the user selects the desired control option using
the user interface 72, to control (via the controller 64) light
provided by the fuel light sources 32. Preferably, the controller
64 is adapted to control light sources 32 in a number of
light-producing simulated solid combustible fuel elements 26 in the
simulated fuel bed 20. In one embodiment, the light-producing
elements 26 are positioned substantially near the bottom of the
pile 25 (FIG. 6).
[0088] Additional embodiments of the invention are shown in FIGS.
8-16. In FIGS. 8-16, elements are numbered so as to correspond to
like elements shown in FIGS. 1-7.
[0089] As can be seen in FIG. 8, a flame simulating assembly 84
includes the simulated fireplace 56 which has the flame image
subassembly 74 for providing images of flames 66. Different types
of flame image subassemblies 74 are known in the art. For instance,
the flame image subassembly 84 shown in FIG. 8 includes a flicker
element 86 for causing the images of flames 66 to fluctuate, for
simulating flames. As shown in FIG. 8, the flame simulating
assembly 84 also preferably includes the simulated fuel bed 120.
The flame image subassembly 74 positions the images of flames 66
(i.e., the images of flames are transmitted through a screen 87) so
that the images of flames 66 appear to emanate from the simulated
fuel bed 120 (FIG. 6). The simulated fuel bed 120 includes the
simulated ember bed 76 which is positioned below the simulated
grate element 78. The simulated fuel elements 22 are positioned in
the grate 78 in a realistic pile 25.
[0090] As shown in FIG. 8, the flicker element 86 is preferably
located underneath the simulated ember bed 80. The flame image
subassembly 84 preferably also includes one or more flame light
sources 88 and a flame effect element 90. Also, as shown in FIG. 8,
the simulated fireplace 56 also preferably includes the housing 54
with a back wall 92, and the flame effect element 90 is preferably
located on the back wall 92.
[0091] In the flame image subassembly 74 shown in FIG. 8, the flame
light source 88 is located generally below the simulated ember bed
80 and adjacent to the back wall 92. Preferably, the light produced
by the flame light source 88 is modulated to provide such changes
in the images of flames 66 as may be desired. Also, the speed at
which the flicker element 86 is rotated can also be varied, to
provided any desired changes in the images of flames 66.
[0092] Another embodiment of a flame simulating assembly 274 is
shown in FIG. 9. As shown in FIG. 9, the flame simulating assembly
274 includes a flame image subassembly 284 which includes a flicker
element 286, a flame light source 288, and a flame effect element
290. The simulated fuel bed 220 is positioned so that the images of
flames 66 appear to emanate from the simulated fuel bed 220. As can
be seen in FIG. 9, the flame light source 288 is preferably located
directly underneath the simulated ember bed 80 in this embodiment.
The flicker element 286 is, in this embodiment, positioned adjacent
to the back wall 292.
[0093] In another embodiment, the flame simulating assembly 384
includes a controller 364 which is adapted to effect a
predetermined sequence of changes in the images of flames 366.
Preferably, the controller causes a flame image subassembly 374 to
provide the predetermined sequence of changes (FIG. 10). For
example, the predetermined sequence of changes may include a
gradual increase in intensity of the images of flames 66.
[0094] For the purposes hereof, intensity of light produced by a
light source refers to the amount of light per unit of area or
volume. For example, intensity may be measured in units of lumens
or candelas per square meter.
[0095] Preferably, the predetermined sequence of changes are in
accordance with software stored in a memory storage means 370
accessible by the controller 364. The predetermined sequence of
changes may proceed at a preselected rate. Also, the preselected
rate may be determined by the controller 364, if preferred. In
another embodiment, the controller 364 is controllable by the user
via a user interface 372 and the predetermined sequence of changes
proceeds at a rate determined by the user via the user interface
372.
[0096] In the preferred embodiment, the flame simulating assembly
384 also includes at least one fuel light source 332 positioned in
one or more light producing simulating fuel elements 326 in the
simulated fuel bed 320, to simulate glowing embers.
[0097] Preferably, the controller 364 is operable in a start-up
mode, in which a gradual increase in intensity of light providing
the images of flames 366 takes place. In one embodiment, upon
commencement of the predetermined sequence of changes, the
intensity of the light providing the images of flames 366 is
relatively low, so that the predetermined sequence of changes
(i.e., a gradual increase in intensity of light providing the
images of flames 366) resembles a natural fire during commencement
thereof. In an alternative embodiment, prior to commencement of the
predetermined sequence of changes, the images of flames 366 are
substantially nonexistent.
[0098] Similarly, in an alternative embodiment, the light providing
the images of flames 366 is gradually decreased in intensity by the
controller 364. The decrease preferably proceeds until the images
of flames 366 are substantially nonexistent, i.e., the gradually
decreasing images of flames 366 resemble a natural fire which is
gradually dying.
[0099] In another alternative embodiment, the flame simulating
assembly 484 includes a heater subassembly 493 (FIG. 9) with one or
more heater elements 494 therein, and preferably including a fan
and a fan motor. The heater subassembly 493 is adapted to operate
in a basic heat mode 493a (FIG. 11), in which the heater
subassembly consumes a first amount of electrical power, and also
to operate in a reduced heat mode 493b (FIG. 11), in which the
heater subassembly 493 consumes a second amount of electrical
power. The first amount of electrical power is substantially
greater than the second amount of electrical power. The flame
simulating assembly 484 also includes a controller 464 which
includes a means for converting the heater subassembly 493 between
the basic heat mode and the reduced heat mode (FIG. 11).
[0100] The flame simulating assembly 484 preferably also includes a
thermostat 496 for controlling the heater subassembly 493. The
thermostat 496 is adapted to operate the heater subassembly 493 in
the basic heat mode upon ambient temperature differing from a
preselected temperature by more than a predetermined difference.
Also, the thermostat is adapted to operate the heater subassembly
493 in the reduced heat mode upon ambient temperature differing
from the preselected temperature by less than the predetermined
difference.
[0101] As shown in FIGS. 12-16, a flame simulating assembly 584 of
the invention preferably includes a remote control device 598 for
controlling a simulated fireplace 556. Preferably, the remote
control device 598 includes a user interface 601 for receiving
input from the user and converting the input into input signals.
The remote control device 598 preferably also includes an occupancy
sensor 603 for detecting motion. The occupancy sensor 603 is
adapted to generate occupancy-related signals upon detection of
motion. Also, the remote control device includes a microprocessor
605 and a transmitter 607 (FIG. 16). The microprocessor 605 is for
converting the input signals and the occupancy-related signals into
output signals. The transmitter 607 is for transmitting the output
signals to a receiver 609 which is preferably positioned on the
simulated fireplace 556. The receiver 609 is operatively connected
to a controller 564 which controls the simulated fireplace 556.
Accordingly, the simulated fireplace 556 is controllable by the
user via input signals and by the occupancy-related input signals
which are transmitted from the remote control device 598 to the
receiver 609, and subsequently to the controller 564.
[0102] Preferably, the occupancy sensor 603 is adapted to send an
activation signal to the controller 564 upon detection of motion.
The activation signal is one of the occupancy-related signals which
are transmitted from the remote control device to the receiver 609
which is operatively connected to the controller 564, as described
above. It is also preferred that the occupancy sensor 603 is also
adapted to send a de-activation signal to the controller upon a
sensor failing to detect motion during a predetermined time period
(FIG. 16). The de-activation signal is another of the
occupancy-related signals. The controller 564 preferably is adapted
to activate the simulated fireplace 556 upon receipt of the
activation signal. Also, the controller 564 preferably is adapted
to de-activate the simulated fireplace 556 upon receipt of the
de-activation signal.
[0103] Preferably, the remote control device additionally includes
an ambient light sensor 611. The ambient light sensor 611 is for
sensing ambient light intensity. For the purposes hereof, ambient
light intensity refers to the amount of ambient light per unit of
area or volume. The ambient light in question is the light
generally around, or in the vicinity of, the simulated fireplace
and/or the user.
[0104] Preferably, the ambient light sensor 611 provides
substantially automatic adjustment of the light provided by one or
more light sources in a simulated fireplace 556 to provide an
improved simulation effect. The light sources thus adjusted
preferably include any or all of the toplight 75, the flame light
source 88, and the fuel light source 32. In one embodiment, the
ambient light sensor 611 is adapted to provide a first signal which
is transmitted to the controller 564 upon the ambient light
intensity being greater than a predetermined first ambient light
intensity. The ambient light sensor 611 is also preferably adapted
to provide a second signal which is transmitted to the controller
564 upon the ambient light intensity being less than a
predetermined second ambient light intensity. The controller 564 is
adapted to increase the intensity of the light provided by the
light source (i.e., being any one or all of the toplight 75, the
flame light source 88, and the fuel light source 32) upon receipt
of the first signal, up to a predetermined maximum. Also, the
controller 564 is adapted to decrease the intensity of the light
provided by the light source upon receipt of the second signal, to
a predetermined minimum.
[0105] In an alternative embodiment, the ambient light sensor 611
is adapted to cause the controller 564 to effect a preselected
change in the intensity of the light supplied by the light source
upon the ambient light intensity differing from the intensity of
light from the light source to a predetermined extent. For example,
the light source could be adjusted so that light provided by the
light source has an intensity which is substantially proportional
to the ambient light intensity. As noted above, the light source
could be all or any one of the toplight 75, the flame light source
88, and the fuel light source 32.
[0106] As can be seen in FIGS. 12-15, the occupancy sensor 603 and
the ambient light sensor 611 preferably are positioned on the
remote control device 598. Preferably, the occupancy light sensor
603 includes a screen or lens 612 through which ambient light is
transmittable (FIGS. 12-14). It is preferred that the ambient light
sensor 611 also be positioned behind the screen 612. Positioning
the occupancy sensor 603 in the remote control device 598 provides
the advantage that the occupancy sensor 603 is likely to detect
motion because it is positioned on the remote control device 598.
Also, the ambient light sensor 611 senses ambient light generally
in the vicinity of the user. Preferably, the remote control device
includes a display screen 613 which, for example, may be a LCD
display. The remote control device 598 also includes control
buttons 615, to be used to enable the user to provide input.
[0107] It is also preferred that the thermostat 496 (preferably, in
the form of a thermistor) is positioned in the remote control
device 598, behind apertures 617 provided to enable ambient air to
reach the thermistor. The advantage of having the thermistor
positioned in the remote control device 598 is that temperature
will be adjusted in accordance with the temperature of the ambient
air generally in the vicinity of the user.
[0108] The display screen 613 is for displaying data regarding
input signals and, preferably, output signals. Input from the user
is receivable via the display screen, in one embodiment.
[0109] In an alternative embodiment, the receiver 609 is a
transceiver, and information (data) is transmittable to the remote
control device 598 from the controller 564 through the receiver
609. In this case, the transmitter 607 is also a transceiver.
[0110] It will be appreciated by those skilled in the art that the
invention can take many forms, and that such forms are within the
scope of the invention as claimed. Therefore, the spirit and scope
of the appended claims should not be limited to the descriptions of
the preferred versions contained herein.
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