U.S. patent number 3,742,189 [Application Number 05/181,745] was granted by the patent office on 1973-06-26 for simulated fireplace assembly.
This patent grant is currently assigned to Fred Meyer of California. Invention is credited to Robert Conroy, Burton Hirsch, Ray Redel.
United States Patent |
3,742,189 |
Conroy , et al. |
June 26, 1973 |
**Please see images for:
( Certificate of Correction ) ** |
SIMULATED FIREPLACE ASSEMBLY
Abstract
A simulated fireplace assembly includes a housing having a fan
located therein whose air flow axis is tilted upwardly, and a
heating means. Air deflecting baffle plates are provided to divert
the air stream from the fan into two streams, one generally
vertical and the other horizontal; the horizontal stream passes the
heating means and thence through an air-permeable front panel of
the housing to heat the surrounding space, while the vertical air
stream exists through an air-permeable top panel of the housing to
activate portions of a flame simulator associated with an
ornamental display of at least one log supported on the top of the
housing.
Inventors: |
Conroy; Robert (San Francisco,
CA), Hirsch; Burton (San Mateo, CA), Redel; Ray
(Albany, CA) |
Assignee: |
Fred Meyer of California
(Emeryville, CA)
|
Family
ID: |
22665608 |
Appl.
No.: |
05/181,745 |
Filed: |
September 20, 1971 |
Current U.S.
Class: |
392/348; D23/343;
126/521; 40/428; 392/368 |
Current CPC
Class: |
F24C
7/004 (20130101); F24H 3/0411 (20130101) |
Current International
Class: |
F24C
7/00 (20060101); F24H 3/04 (20060101); H05b
001/00 (); G09f 013/34 (); F24h 003/04 () |
Field of
Search: |
;219/343,344,339,342,365-371,377,220 ;40/106.52,106.54,106.53
;126/121 ;D23/95 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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249,321 |
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Mar 1926 |
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GB |
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899,878 |
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Jun 1962 |
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GB |
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1,088,577 |
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Oct 1967 |
|
GB |
|
3,866 |
|
Nov 1901 |
|
GB |
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994,667 |
|
Jun 1965 |
|
GB |
|
594,680 |
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Jun 1925 |
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FR |
|
Primary Examiner: Bartis; A.
Claims
We claim:
1. In a simulated fireplace assembly having an ornamental display
of fuel material, heat exchange means for conditioning an air
stream, and fan means to cause an air stream to be conditioned
thereby and actuate said ornamental display, the improvement
comprising:
housing means supporting said ornamental display on an upper
exterior portion thereof and providing a fan chamber interiorly
thereof, said housing means including an air-permeable front
portion forwardly of said fan chamber and an air-permeable top
portion proximate said ornamental display;
means mounting said fan means within said fan chamber to direct an
air stream therefrom at an upwardly inclined angle from the
horizontal;
deflector means mounted within said housing means and shaped to
provide generally horizontal and vertical air deflector surfaces
forwardly of said fan means to cause an upwardly inclined air
stream therefrom to be split into a generally vertical component
directed through said air-permeable top portion and a horizontal
component directed through said air-permeable front portion;
means mounting said heat exchange means within said housing means
between said fan means and said air-permeable front portion;
and
visual burning effect means associated with said ornamental display
and activated by the air stream flowing from said air-permeable top
portion for providing air-actuated visual effects emanating from
said fuel material.
2. The assembly and combination therewith as defined in claim 1 and
wherein further said housing has side walls and said deflector
means comprises:
a shield having a first generally inclined planar section
transverse to the side walls of said housing and coextensive with
the area bounded by said heat exchange means, the inner side wall
surfaces of said housing, and said upper exterior section of said
housing means; and
a second generally horizontal planar section overlying said heat
exchange means.
3. The assembly and combination therewith as defined in claim 2 and
wherein further said housing means carries an additional vertical
air deflector surface forwardly of said fan means, said additional
deflector located so that the upper edge of said first generally
inclined planar section is located proximate the lower edge of the
additional deflector surface, and said first planar section is
positioned so that said section and surface define an exterior
angle therebetween of about 214.degree..
4. The assembly and combination therewith as defined in claim 1 and
wherein further said fan means comprises a fan with the rotational
axis thereof inclined upwardly from the horizontal by about
17.degree..
5. The assembly and combination therewith as defined in claim 1 and
wherein further said visual burning effect means is characterized
as a flame simulator means and comprises at least one strip of thin
and flexible reflective material, and means mounting said strip in
a generally vertical orientation with respect to said fuel material
display, said strip fabricated in a manner to undulate when an
airstream is caused to flow through said air-permeable top portion
past said fuel material.
6. The assembly and combination therewith as defined in claim 5 and
wherein said fuel material comprises at least one log member, and
means mounting said log member proximate said air-permeable top
portion.
7. The assembly and combination therewith as defined in claim 5 and
wherein said fuel material comprises at least two log members, and
wherein further said flame simulator means comprises at least as
many strips of thin and flexible reflective material as one less
than the number of said log members, and means for mounting each of
said strips in a generally vertical orientation adjacent said log
members.
8. The assembly and combination therewith in accordance with claim
7 and wherein further a grate member shaped to attachably carry
said log members thereon.
9. The assembly and combination therewith in accordance with claim
8 and wherein further at least one of said log members is shaped to
form a hollow portion therebehind, and wherein said flame simulator
means comprises at least one illumination source and means for
operatively mounting such source in proximity to each of said
strips of reflective material, whereby when each strip is caused to
undulate under the influence of air currents each said strip will
variously and randomly reflect the illumination of said source
thereof and thus provide visual effects simulating actual flames
within said fireplace assembly.
10. The assembly and combination therewith as defined in claim 5
and wherein further said flame simulator means comprises at least
one illumination source and means for operatively mounting such
source in proximity to each of said strips of reflective material,
whereby when each strip is caused to undulate under the influence
of air currents each said strip will variously and randomly reflect
the illumination of said source thereof and thus provide visual
effects simulating actual flames within said fireplace
assembly.
11. The assembly and combination therewith in accordance with claim
5 and wherein further said heat exchange means comprises an
electric heater, and said means mounting said heat exchange means
comprises means for mounting said electric heater and means for
electrically connecting the latter to source of electrical energy
therefor.
12. The assembly and combination therewith in accordance with claim
1 and wherein further said heat exchange means comprises an
electric heater, and said means for mounting said electric heater
and means for electrically connecting the latter to source of
electrical energy therefor.
13. The assembly and combination therewith in accordance with claim
1 and wherein further a simulated coal bed display located
proximate said ornamental display of fuel material.
14. In a simulated fireplace assembly having an ornamental display
of fuel material, heat exchange means for conditioning an air
stream, and fan means to cause an air stream to be conditioned
thereby and actuate said ornamental display, the improvement
comprising:
housing means supporting said ornamental display on an upper
exterior portion thereof and providing a fan chamber interiorly
thereof, said housing means including an air-permeable front
portion forwardly of said fan chamber and an air-permeable top
portion proximate said ornamental display;
means mounting said fan means within said fan chamber to direct an
air stream therefrom at an upwardly inclined angle from the
horizontal,
said housing means shaped to provide generally horizontal and
vertical air deflector surfaces forwardly of said fan means to
cause an upwardly inclined air stream therefrom to be split into a
generally vertical component directed through said air-permeable
top portion and a horizontal component directed through said
air-permeable front portion;
means mounting said heat exchange means within said housing means
between said fan means and said air-permeable front portion;
and
visual burning effect means associated with said ornamental display
and activated by the air stream flowing from said air-permeable top
portion for providing air-actuated visual effects emanating from
said fuel material.
15. The assembly and combination therewith as defined in claim 14
and wherein further said fan means comprises a fan with the
rotational axis thereof inclined upwardly from the horizontal by
about 17.degree..
16. The assembly and combination therewith as defined in claim 14
and wherein further said visual burning effect means is
characterized as a flame simulator means and comprises at least one
strip of thin and flexible reflective material, and means mounting
said strip in a generally vertical orientation with respect to said
fuel material display, said strip fabricated in a manner to
undulate when an airstream is caused to flow through said
air-permeable top portion past said fuel material.
17. The assembly and combination therewith as defined in claim 16
and wherein said fuel material comprises at least one log member,
and means mounting said log member proximate said air-permeable top
portion.
18. The assembly and combination therewith as defined in claim 16
and wherein said fuel material comprises at least two log members,
and wherein further said flame simulator means comprises at least
as many strips of thin and flexible reflective material as one less
than the number of said log members, and means for mounting each of
said strips in a generally vertical orientation adjacent said log
members.
19. The assembly and combination therewith as defined in claim 18
and wherein further a grate member shaped to attachably carry said
log members thereon.
20. The assembly and combination therewith as defined in claim 14
and wherein further at least one of said log members is shaped to
form a hollow portion therebehind, and wherein said flame simulator
means comprises at least one illumination source and means for
operatively mounting such source in proximity to each of said
strips of reflective material, whereby when each strip is caused to
undulate under the influence of air currents each said strip will
variously and randomly reflect the illumination of said source
thereof and thus provide visual effects simulating actual flames
within said fireplace assembly.
21. The assembly and combination therewith a defined in claim 16
and wherein further said flame simulator means comprises at least
one illumination source and means for operatively mounting such
source in proximity to each of said strips of reflective material,
whereby when each strip is caused to undulate under the influence
of air currents each said strip will variously and randomly reflect
the illumination of said source thereof and thus provide visual
effects simulating actual flames within said fireplace
assembly.
22. The assembly and combination therewith as defined in claim 16
and wherein further said heat exchange means comprises an electric
heater, and said means mounting said heat exchange means comprises
means for mounting said electric heater and means for electrically
connecting the latter to source of electrical energy therefor.
23. The assembly and combination therewith as defined in claim 14
and wherein further said heat exchange means comprises an electric
heater, and said means for mounting said electric heater and means
for electrically connecting the latter to source of electrical
energy therefor.
24. The assembly and combination therewith as defined in claim 20
and wherein further a simulated coal bed display located proximate
said ornamental display of fuel material.
25. The assembly and combination therewith as defined in claim 14
and wherein further said generally horizontal air deflector surface
includes a downwardly inclined portion.
Description
This invention relates to simulated fireplace assemblies, and more
particularly to such an assembly which provides heat to the
surrounding air space and at the same time creates a visual
illusion of actual fire in and around the artificial logs displayed
as part of the assembly.
Simulated or artificial fireplace assemblies are known in the
industry. Such assemblies usually employ an electric heater and
sometimes a fan blower to more efficiently dispense the hot air
from heater elements to the surrounding room space. Often such
fireplace assemblies are wall mounted, although they may be free
standing; and artificial or imitation fire logs are included in the
arrangement to give the visual illusion or appearance of an actual
fireplace. Sometimes varied colored lights are added to further
enhance the fire-like appearance of the entire arrangement. Indeed
such cosmetic effects are believed to be as important, if not more
important, than the heating capability of the unit itself. In fact,
it is generally the case that simulated fireplace assemblies are
utilized in rooms other than main rooms of a residence; for
example, bedroom, dinette, den, or the like. Such artificial
fireplace assemblies are also used in commercial establishments to
enhance and give a pleasant atmosphere.
With most prior art simulated fireplace assemblies with which we
are familiar, the general appearance and cosmetic aspect of the
devices is disappointing. While imitation logs and some colored
lights, even of the flickering type, are employed, the illusion
that an actual fire is present in the assembly is almost always
totally lacking.
Thus it is an object of the present invention to provide a
simulated fireplace assembly which also gives the illusion of
having an actual fire amongst the artificial logs which form a part
of the arrangement.
It is a feature and an advantage of this invention that its
realistic fireplace illusion creates a superior interior design for
a simulated fireplace assembly.
It is a further object of this invention to provide a simulated
fireplace assembly having selective lighting and flame creating
illusions, thereby to establish a more convincing and interesting
mood in rooms adorned by our device.
It is also an important object of our invention to provide the
aforementioned ilusion of an actual fire by means of air currents
playing upon certain reflective materials wherein such air currents
are developed by the same fan source used to blow warm air from the
heating assembly into the space being heated. By such an
arrangement our invention achieves significant economies in the
fabrication of units which it embraces.
Further objects, features and advantages will be apparent to one of
ordinary skill in the art upon a reading of the specification which
follows and with reference to the FIGURES of the drawings which
accompany this specification.
Turning now to the drawings, FIG. 1 is a perspective "blow-up" of
the entire simulated fireplace assembly embracing our
invention;
FIG. 2 is a side viw of an assembly utilizing our invention wherein
the lower portion is shown as a partial section at about the
transverse midplane, in order to more clearly reveal certain
internal details; and
FIG. 3 is an electrical schematic diagram showing one wiring
arrangement that may be utilized in a simulated fireplace embracing
our invention.
The invention is best understood by turning first to the "blow-up"
perspective of FIG. 1. There we illustrate a simulated fireplace
assembly at bracketed portion 12 including the ornamental display
of artificial logs 14, 16 and 18 carried by grate assembly 20
having legs 21 which in turn rest upon upper exterior section 24 of
housing assembly 22. Upper exterior section 24 is of composite
fabrication comprising cover 25a and an artificial hearth-like
covering 25b; cover 25a is secured by sheet metal screws 25c to
housing side flanges 25d. The ornamental hearth covering 25b may
merely slip over cover 25a and remain frictionally engaged
therewith.
The rear section of assembly 20 is secured by conventional
fasteners 21a to brackets 21b mounted at the outer face of open
mesh housing panel 36. Housing assembly 22 primarily forms the
interior fan chamber 26 which houses therein fan assembly 28 and
the support housing for heating means 30. During normal operation
of the simulated fireplace assembly embracing our invention, and as
will be explained in somewhat greater detail hereinafter in
connection with other aspects of our invention, fan assembly 28
upon being appropriately installed and energized, causes air to be
circulated from the fan chamber through and past the electrical
heating coils of assembly 30, and thence into the ambient spaces
surrounding the unit to provide warmth in a known manner associated
with electrical heater-blower units.
It is a feature and advantage of the present invention, however,
that not only do we provide conventional blower heating as
indicated above; but our invention also achieves a relatively
realistic illusion of an actual fire-like phenomena in and amongst
the artificial logs, thus enhancing the appearance while creating a
convincing and interesting mood within a room adorned by our
device.
Generally, the foregoing effect is achieved by means of baffle
assembly 32 acting in cooperation with fan assembly 28, the use of
open mesh, i.e., air-permeable, panel sections 34, 36 and
ornamentation strips 38 which, in the embodiment shown, comprise
thin and flexible reflective material, such as cellophane or the
like, located in the air space between logs 18 and 16; and logs 16
and 14. More specifically, strips 38 are secured at their ends to
and held in position by wire brackets 40, 42, which in turn are
conventionally attached to grate end bars 44, 46 by means of
opposing nut sets 40a, 42a.
Baffle assembly 32 comprises a shield of cross-sectional shape and
is mounted within housing 22 between heater assembly 30 and upper
exterior section 24. Specifically, in the embodiment shown, baffle
32 comprises a first planar section 48 transverse to the interior
cavity of housing 22, i.e., co-extensive with the area bounded by
heater assembly 30, inner side walls 56a and 56b of the housing,
and upper exterior section 24; a second planar section 50 which
overlays heater assembly 30; and a third planar section 52 which is
in generally normal alignment with the air-permeable front panel
34.
Upon energization of the unit, i.e., actuation of fan assembly 28
and heater coils 30a, an air stream is caused to flow as indicated
by arrows 54a and 54b (FIG. 2). That is the portion of the air
stream represented by arrows 54a is deflected by baffle assembly 32
so as to pass through and contact heater coils 30a, become warmed
thereby, and thence pass outwardly through air-permeable panel 34
into the air space thereabout to be heated.
At the same time, another portion of the air stream caused to move
by fan assembly 28 and represented by arrows 54b occurs above and
away from the deflective influence of baffle assembly 32. Such
portion of the air stream travels upwardly through air-permeable
panels 36 located just below the assembly of grate assmbly 20,
thereupon causing air currents to occur in and around artificial
logs 14, 16, and 18. At the same time, these air currents cause
ornamentation strips 38 to dance and play in the air, thus
reflecting any light therefrom to resemble an actual fireplace
flame flicker. In this manner, we achieve a relatively realistic
illusion of an actual fire-like phenomenon in and amongst the
artificial logs, thus enhancing the appearance of the entire device
embracing our invention, while creating the convincing and
interesting mood within a room adorned by our invention, as first
we indicated above.
A particularly beneficial feature of our invention is that the
foregoing combined function of blowing heated air and wafting
cellophane strips 38 to create an illusion of flame flickers is
achieved by a single fan assembly 28. In this way, significant
economies in the overall preparation and fabrication of devices
embracing our invention are achieved. More specifically we
preferably achieve this salutary feature by the arrangement wherein
fan chamber 26 is defined in part by a generally vertical wall
portion 56 adjoining upper exterior section 24. Further,wall
portion 56 having lip 56a and cover panel 25a having vertical
flange 25e are assembled to form an overlapped corner edge 58 (FIG.
2). Additionally, baffle panel 48 is fabricated to form a
transverse section which slopes upwardly from heater assembly 30
with upper edge 60 thereof in common contact, or very nearly so,
with the common edge of cover panel 25a and flange 25e along corner
edge 58. In conjunction with the foregoing, fan assembly 28, which
in the embodiment shown comprises electric motor and housing case
and fan propeller 28b is mounted within fan chamber 26 so that the
rotational axis 62 of the fan propeller substantially lies in the
plane which bisects interior angle 64 defined by plane of wall
portion 56 and baffle panel 48. Thus, the air stream established by
rotation of fan 28b is divided into the two streams indicated,
respectively, by arrows 54a and 54b; portion 54a being deflected by
baffle assembly 32 past heater assembly 30, as explained
hereinabove, and portion 54b upwardly through air-permeable panel
36 thence to waft cellophane strips 38. Thus, the beneficial and
efficient dual function of fan assembly 28 is achieved.
We have found, after considerable experimentation, that a very
satisfactory arrangement in accordance with the foregoing
description is to provide an interior angle 64 of about
214.degree.. That is motor assembly 28 is mounted so that the
transverse plane thereof is inclined at angle 66 of about
17.degree. from the vertical. Using such values, and with the fan
rotational axis very nearly directed through corner edge 58 we have
achieved excellent blower and flame illusion results. In this
connection it should be noted that motor assembly 28 may be mounted
in any conventional manner. Such techniques are well known to those
of ordinary skill in the art and are not shown in the accompanying
drawing nor described herein.
It is also to be noted that although we have described a particular
arrangement of baffle plate 48 with respect to its slope angle from
heater assembly 30, other arrangements at or near such angle will
function in accordance with the present invention. Similarly, the
particular slope of the fan assembly axis may be varied somewhat,
although we prefer the results achieved when the transverse plane
angle 66 is at or about 17.degree..
The general illusion of flame flicker and presence described
hereinabove with respect to cellophane strips 38 may be further
enhanced by the use of independent light sources therefore,
especially when such sources are of various colors. This may be
achieved in accordance with the present invention by the use of
light bulbs 68 operatively mounted in appropriately wired
receptacles 68a (FIG. 2). In addition, cellophane strips 38 may be
cut to have a scallop-like shape resembling the flame elements of
an actual fire. Thereupon when the strips are made to quiver by the
air currents from fan assembly 28, the combination of reflected
color lighting from sources 68 and moving strips 38 coact to
produce an even more convincing illusion of an actual fireplace
fire. The entire effect is even more accentuated when the room in
which our invention is placed is otherwise darkened.
Electrical fan and heater assemblies are preferred by us in the
practice of the present invention, although it is possible to use
other forms of motive and heating power, particularly for the fan
motor. One such electrical arrangement that we have found
satisfactory is shown at FIG. 3. Main power, such as ordinary 110
V.A.C. current, is introduced at a main plug 70 and one conductor
thereof is connected to one terminal of a single pole switch 72
located at the side of housing 22 (FIG. 1). The other conductor of
the main power line is connected to one terminal of electric motor
28a; one terminal of an auxiliary power plug 74 to be used to
energize light sources 68; and one terminal of heater coil elements
30a, the entire bank of elements being connected in parallel. The
other terminal of the aforementioned single pole switch 72 is
connected to one terminal of thermostat 76; the second terminal of
motor 28a; and the second terminal of receptacle 74. Thermostat 76
in turn is connected in series with thermodisc 78 and thence to the
second terminal of the parallel heater elements 39a. Thus the
heater elements may be controlled for temperature by manual
adjustment and a pre-determined temperature safety cut-off
setting.
Various details of construction of our invention may be varied and
yet be within the scope of the invention as exemplified by the
appended claims. For example, our unit may be adopted for either
wall or corner mounting, it being appreciated that the basic unit
embracing our invention as shown in the accompanying drawings is
itself adapted for mounting within a larger receptacle which in
turn is then mounted to the wall of a room; the corner thereof, or
indeed may be free standing.
In addition, to further enhance the illusion of an actual
fireplace, an artificial coal bed 80 may be added and placed atop
hearth cover 25b beneath the realistic grate assembly 20.
Various other relatively minor details have been shown in one
manner and thus described, although other practices may be used.
For example we illustrate baffle assembly 32 as fabricated of two
sheet metal sections screwed together, although a single piece of
metal properly formed could be used. Also, resister-heater elements
30a are shown mounted in one conventional manner known to those
skilled in the art and have not further described nor specified
herein, although other means and techniques could be used
therefore.
Similarly, artificial logs 14, 16 and 18 are fabricated of a
particularly light plastic material and in the embodiment shown are
hollowed out, thus forming a convenient and useful place to mount
light sources 68. Other materials could be used -- even actual logs
-- and the light sources placed in other locations hidden from
direct view by occupants where our elegant and useful invention
adorns the premises.
* * * * *