U.S. patent application number 14/615429 was filed with the patent office on 2016-08-11 for double-screened gas heater with dancing flame.
The applicant listed for this patent is GRAND HALL ENTERPRISE CO., LTD.. Invention is credited to William Home.
Application Number | 20160230985 14/615429 |
Document ID | / |
Family ID | 56565383 |
Filed Date | 2016-08-11 |
United States Patent
Application |
20160230985 |
Kind Code |
A1 |
Home; William |
August 11, 2016 |
DOUBLE-SCREENED GAS HEATER WITH DANCING FLAME
Abstract
A double-screened gas heater includes an outer screen, an inner
screen, and a gas burner. The outer screen is of a vertically
erected hollow configuration ahs includes a plurality of through
holes formed therein. The inner screen is of a vertically erected
hollow configuration and is disposed inside the outer screen. The
inner screen includes a plurality of through apertures formed
therein. The gas burner is arranged in a bottom of the inner screen
and includes a plurality of burner ports. The burner ports are
arranged in side the inner screen. The outer screen and the inner
screen collectively form an inner/outer double screen arrangement,
which allows for projection of the thermal energy to the
surroundings in the form of heated air and thermal radiation so as
to achieve an optimum effect of heating and warming. The outer
screen provides protection of users against burns by high
temperature.
Inventors: |
Home; William; (Taipei City,
TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
GRAND HALL ENTERPRISE CO., LTD. |
Taipei City |
|
TW |
|
|
Family ID: |
56565383 |
Appl. No.: |
14/615429 |
Filed: |
February 6, 2015 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
F24H 9/1881 20130101;
F23D 14/145 20130101; F23D 14/06 20130101; F24H 3/006 20130101;
F24H 9/0057 20130101; F24C 3/042 20130101 |
International
Class: |
F23D 14/14 20060101
F23D014/14; F24H 3/00 20060101 F24H003/00; F24C 3/04 20060101
F24C003/04 |
Claims
1. A double-screened gas heater, comprising: an outer screen, which
is of a vertically erected hollow configuration, the outer screen
comprising a plurality of through holes; an inner screen, which is
of a vertically erected hollow configuration and is arranged inside
the outer screen, the inner screen comprising a plurality of
through apertures, the inner screen having a lower portion that
comprises an aperture-free shielding section; and a gas burner,
which is arranged in a bottom of the inner screen, the gas burner
comprising a plurality of burner ports, the burner ports being
partly or completely shielded by the shielding section.
2. The double-screened gas heater according to claim 1, wherein the
inner screen is higher than the outer screen, the inner screen
having a top, which comprises a flue gas baffle mounted thereto so
that the flue gas baffle and a top edge of the inner screen define
therebetween a gas discharge passage.
3. The double-screened gas heater according to claim 1, wherein the
through apertures of the inner screen have a diameter of 0.9-2
mm.
4. The double-screened gas heater according to claim 1, wherein the
outer screen, the inner screen, and the gas burner are mounted on a
base and the outer screen has a top to which a top cover is
mounted.
5. The double-screened gas heater according to claim 1 further
comprising an external device, the external device comprising a
carrier, a plurality of support braces, and a top cover, the
carrier being arranged beneath the outer screen, the support braces
being vertically erected and mounted to a top of the carrier in
such a way that exposure spaces are formed between the support
braces.
Description
TECHNICAL FIELD OF THE INVENTION
[0001] The present invention generally relates to a heater, and
more particularly to a double-screened gas heater that protects
user from burning by a high temperature and allows for viewing of
an elongated flame in a dancing condition in the interior of the
heater so as to achieve, as a whole, effects of warming, safety,
and decoration.
DESCRIPTION OF THE PRIOR ART
[0002] Most of the heaters that are available in the market are
structured to allow a burner to directly heat air in the
surrounding of the heater through thermal radiation (such as
infrared ray ceramics) or allowing a heating tube (such as a pillar
like stain steel tube or a glass tube) to directly heat air in
order to achieve an effect of warming. The effect of heating and
warming and operation safety are the major concerns of the heater
products.
[0003] However, the heaters that are available in the market are
not perfect in regard to structure, performance, and safety
arrangement and thus further improvements are necessary. For
example, the performance of thermal radiation is generally not
good. Further, the heaters that are available in the market, due to
the consideration of heating and warming and operation safety, are
generally constrained for appearance aesthetics, making it hard to
achieve breakthrough in the designs thereof, particularly to make
it possible to allow for viewing and enjoying the flame set up
inside the heater to show an irregularly elongated and dancing
configuration.
[0004] Thus, the present invention aims to provide a solution that
takes the above-discussed issues into consideration.
SUMMARY OF THE INVENTION
[0005] An object of the present invention is to provide a
double-screened gas heater that comprises an arrangement of
inner-and-outer double screens, which projects the thermal energy
generated by a gas burner through heated air and thermal radiation
to the surroundings in order to achieve a high-efficiency warming
effect and also to allow for viewing of a dancing condition of an
elongated flame inside the heater thereby providing multiple
functions of warming, decoration, and safety.
[0006] The double-screened gas heater according to the present
invention features a shielding section provided at a lower portion
of an inner screen to partly or completely shield a burner head of
a gas burner. Such an arrangement helps provide a flame of which
the length is controllable to suit various actual needs.
[0007] The double-screened gas heater according to the present
invention additionally features the inner screen comprising a
plurality of secondary through apertures formed in a portion
thereof below the shielding section in order to provide a "chimney
effect".
[0008] The double-screened gas heater according to the present
invention further features the inner screen being higher than a top
of an outer screen so that heated air supplied from the inner
screen is allowed to directly dissipate into the atmosphere so as
to reduce the temperature of the outer screen for the purposes of
meeting the requirement of the related safety regulations and to
prevent the occurrence of burns of users.
[0009] The double-screened gas heater according to the present
invention further features the inner screen having a top comprising
an air discharge opening to which a flue gas baffle is mounted to
adjust and regulate the circulation of heated air in and through
the heater to allow for emission of a maximum amount of heat to the
surroundings and also to make the heated air discharged from the
top of the inner screen meet the requirement of the related safety
regulations.
[0010] The double-screened gas heater according to the present
invention further features the outer screen comprising a plurality
of through holes formed therein to help stabilize the flows of air
moving into the inner screen and also to stabilize the combustion
of fuel gas and also to provide protection of users against
burns.
[0011] The foregoing objectives and summary provide only a brief
introduction to the present invention. To fully appreciate these
and other objects of the present invention as well as the invention
itself, all of which will become apparent to those skilled in the
art, the following detailed description of the invention and the
claims should be read in conjunction with the accompanying
drawings. Throughout the specification and drawings identical
reference numerals refer to identical or similar parts.
[0012] Many other advantages and features of the present invention
will become manifest to those versed in the art upon making
reference to the detailed description and the accompanying sheets
of drawings in which a preferred structural embodiment
incorporating the principles of the present invention is shown by
way of illustrative example.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] FIG. 1 is a perspective view showing a double-screened gas
heater of an outdoor model according to the present invention.
[0014] FIG. 2 is a perspective view showing an outer screen and an
inner screen of the gas heater of the present invention in a
condition of being detached from each other.
[0015] FIG. 3 is a cross-sectional view showing a portion of the
present invention in an assembled form.
[0016] FIG. 4 is an enlarged view of a circled portion A of FIG.
3.
[0017] FIG. 5 is an enlarged view of a circled portion B of FIG.
3.
[0018] FIG. 6 is an enlarged view of a circled portion C of FIG.
3.
[0019] FIG. 7 is a cross-sectional view showing a double-screened
gas heater of a desktop model according to the present
invention.
[0020] FIG. 8 is an enlarged view of a circled portion D of FIG.
7.
[0021] FIG. 9 is an enlarged view of a circled portion E of FIG.
7.
[0022] FIG. 10 is an enlarged view of a circled portion F of FIG.
7.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0023] The following descriptions are exemplary embodiments only,
and are not intended to limit the scope, applicability or
configuration of the invention in any way. Rather, the following
description provides a convenient illustration for implementing
exemplary embodiments of the invention. Various changes to the
described embodiments may be made in the function and arrangement
of the elements described without departing from the scope of the
invention as set forth in the appended claims.
[0024] Referring to FIGS. 1, 2, and 3, the present invention
provides a double-screened gas heater 1, of which a preferred
embodiment comprises an outer screen 10, an inner screen 20, and a
gas burner 30. A detailed description of the present invention will
be provided below.
[0025] The outer screen 10 is of a vertically erected hollow
configuration and the outer screen 10 comprises a plurality of
through holes 11.
[0026] The inner screen 20 is of a vertically erected hollow
configuration and is disposed inside the outer screen 10 and the
inner screen 20 comprises a plurality of through apertures 21.
[0027] The gas burner 30 is arranged below the inner screen 20. The
gas burner 30 comprises a plurality of burner ports 31. The burner
ports 31 are arranged inside the inner screen 20.
[0028] In the instant embodiment, the outer screen 10 and the inner
screen 20 are made of stain steel.
[0029] In the instant embodiment, the double-screened gas heater 1
of the present invention is an outdoor model, which further
comprises an external device 40. The external device 40 comprises a
carrier 41, a plurality of support braces 42, and a top cover 43,
wherein the carrier 41 is located under the outer screen 10 to bear
and support the outer screen 10 thereon; the support braces 42 are
arranged, in an erected form, on and coupled to the carrier 41 in
such a way that the support braces 42 form therebetween exposure
spaces to prevent the outer screen 10 from being shielded; and the
top cover 43 is mounted atop the support braces 42 so that the
external device 40 provides effects of decoration and
aesthetics.
[0030] The above provides a description to the components of the
present invention and the operation and features will be described
as follows:
[0031] The present invention provides an outer screen 10 and an
inner screen 20 that are arranged to form an inner/outer double
screen arrangement, which allows thermal energy generated by the
gas burner 30 to be projected, through heated air and thermal
radiation, to the surroundings and provides an enhanced heating and
warming effect, wherein the outer screen 10 may protect a user from
being burnt by the high temperature and the gas burner 30 generates
a flame that is elongated and in a dancing form and is viewable
through the through holes 11 of the outer screen 10 and the through
apertures 21 of the inner screen 20 so that a user may enjoy
watching the elongated dancing flame in the interior of the heater
thereby achieving, as a whole, effects of warming, safety, and
decoration.
[0032] Further, besides protecting the users against burning by a
high temperature, the outer screen 10 also helps alleviate or
eliminate the flame of the heater burner being blown off by an
outdoor strong wind.
[0033] Referring to FIG. 3, in an embodiment, the inner screen 20
has a top end that forms a gas discharge opening that is provided
with a flue gas baffle 50. The flue gas baffle 50 and a top edge of
the inner screen 20 define therebetween a gas discharge passage 51.
As such, circulation of heated air in or through the heater of the
present invention can be adjusted and regulated to allow the heat
emission screen of the heater of the present invention to give off
a maximum amount of heat to the surroundings. Further, the flue gas
discharged from the top of the heat emission screen of the present
invention may also meet the requirements of related safety
regulations.
[0034] Referring to FIGS. 3 and 4, in an embodiment, the inner
screen 20 has a lower portion that comprises an aperture-free or
non-holed shielding section 22. As such, during the operation of
the heater burner, the flame can be protected from being
extinguished by strong winds or gusts and also, the aperture-free
shielding section 22 may help slow down the supply of oxygen
necessary for combustion so as to elongate the flame of the heater
burner to achieve an effect of viewing for pleasure and also an
effect of decoration.
[0035] Referring to FIG. 5, in an embodiment, the through holes 11
of the outer screen 10 have a diameter of 8-14 mm and the
center-to-center distance between one through hole 11 and an
adjacent through hole 11 is 15-17 mm. It is noted here that such
figures are provided as examples for illustration, not intended to
impose undue limitations to the scope of the present invention.
[0036] Referring to FIG. 6, in an embodiment, the through apertures
21 of the inner screen 20 have a diameter of 0.9-2 mm. The through
apertures 21 collectively take a percentage of 10%-15% of the total
surface area of the inner screen 20. The center-to-center distance
between one through aperture 21 and an adjacent through aperture 21
is 2-4 mm.
[0037] It is noted here that the present invention allows for
establishment of an optimum heating and warming effect of the
heater by properly selecting and setting geometric relationships
(relative positions and the likes) among the through aperture size,
distribution sites, and quantity of the inner screen 20 and the gas
burner 30 and a diameter ratio thereof with respect to the gas
burner 30 and also allows the flame to exhibit a dancing condition
that is observable through the through apertures 21 of the inner
screen 20.
[0038] Referring to FIGS. 7 and 8, in an embodiment, the present
invention provides a double-screened gas heater 1 that is
structured as a desktop model, wherein the general structure is
such that the outer screen 10, the inner screen 20, and the gas
burner 30 are mounted on a base 61 and a top cover 62 is mounted
atop the outer screen 10. As such, the desktop model provides the
effect of warming, safety, and decoration similar to those of the
outdoor model.
[0039] Referring to FIG. 9, in an embodiment, the through holes 11
of the outer screen 10 have a diameter of 5-6 mm.
[0040] Referring to FIG. 10, in an embodiment, the through
apertures 21 of the inner screen 20 have a diameter of 1.2-1.5
mm.
[0041] Referring to FIGS. 1, 2, 3, and 4, the present invention
provides at least the following technical features:
[0042] (1) The inner screen has a lower portion that comprises
secondary through apertures 211 that help generate a "chimney
effect".
[0043] (2) The inner screen is provided, at the lower portion
thereof and above the secondary through apertures 211, with an
aperture-free or non-holed shielding section 22 to partly or
completely shield a burner head of the gas burner 30 to prevent a
flame from being extinguished by a strong wind or gust during the
operation of the heater burner and also to make use of the
non-holed section 22 to slow down the supply of oxygen necessary
for burning in order to elongate the flame for viewing for pleasure
and decoration.
[0044] (3) The inner screen 20 is arranged to be higher than the
outer screen 10 in order to reduce the temperature of the outer
screen 10 for burn protection of users.
[0045] (4) The flue gas baffle 50 is provided to adjust and
regulate the circulation of heated air/gas in and through the
heater of the present invention so as to allow the heat emission
screen of the heater of the present invention to give off a maximum
amount of heat to the surroundings and also to make the flue gas
discharged from the top of the heat emission screen of the present
invention meet the requirements of related safety regulations.
[0046] (5) The outer screen 10 helps stabilize airflow and prevent
users from getting burnt.
[0047] (6) The through apertures 21 of the inner screen 20 have a
diameter of 0.9-2 mm.
[0048] (7) The through holes 11 of the outer screen 10 have a
diameter of 8-14 mm.
[0049] It will be understood that each of the elements described
above, or two or more together may also find a useful application
in other types of methods differing from the type described
above.
[0050] While certain novel features of this invention have been
shown and described and are pointed out in the annexed claim, it is
not intended to be limited to the details above, since it will be
understood that various omissions, modifications, substitutions and
changes in the forms and details of the device illustrated and in
its operation can be made by those skilled in the art without
departing in any way from the spirit of the present invention.
* * * * *