U.S. patent number 3,589,620 [Application Number 04/744,953] was granted by the patent office on 1971-06-29 for gas burners.
This patent grant is currently assigned to Companion Heaters Proprietary Limited. Invention is credited to Leslie Barson, Frederick Charles Davis.
United States Patent |
3,589,620 |
Davis , et al. |
June 29, 1971 |
GAS BURNERS
Abstract
In a gas burner assembly, a unitary sheet metal base member and
a unitary sheet metal cover member, the cover member includes an
annular portion having an upstanding, substantially frustoconical
portion adapted to house a burner head and a radially extending
flat portion, the base member has a closed bottom and a gas duct
extending therefrom for supplying gas to the burner head, and the
cover member has a flange around its periphery turned down over the
periphery of the base member to unite the base member and the cover
member.
Inventors: |
Davis; Frederick Charles
(Knoxville, Victoria, AU), Barson; Leslie (Ormond,
Victoria, AU) |
Assignee: |
Companion Heaters Proprietary
Limited (Victoria, AU)
|
Family
ID: |
3713891 |
Appl.
No.: |
04/744,953 |
Filed: |
July 15, 1968 |
Foreign Application Priority Data
|
|
|
|
|
Jul 25, 1967 [AU] |
|
|
25012/67 |
|
Current U.S.
Class: |
239/434; 239/559;
239/567 |
Current CPC
Class: |
F23D
14/06 (20130101); F23D 14/04 (20130101) |
Current International
Class: |
F23D
14/04 (20060101); F23D 14/06 (20060101); F23d
013/00 () |
Field of
Search: |
;239/559,567,433,288.5,568,434 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Wood, Jr.; M. Henson
Assistant Examiner: Mar; Michael Y.
Claims
We claim:
1. A gas burner comprising a sheet metal base member and a sheet
metal cover member assembled and forming a housing for a burner
head having a closed bottom and a gas duct for supplying gas to a
burner head supported in said housing; said cover member including
an annular portion including an upstanding, substantially
frustoconical portion and a radially extending flat portion; said
cover member having a flange around its periphery turned over the
periphery of said base member so as to unite said base member and
said cover member.
2. A gas burner in accordance with claim 1 wherein the upstream
extremity of the gas duct includes means for location on a gas jet
and said means for location of said gas jet on a gas duct includes
a flap on the cover member turned downwardly so as to close the end
of said gas duct remote from the burner housing and has an aperture
therein for reception of said gas jet.
Description
This invention relates to gas burners and particularly but not
exclusively to high-pressure gas burners for small portable cooking
appliances.
The design of known burners has necessitated a complexity of
fittings for connection with the gas supply, particularly in
installations where several burners are connected with the same
supply and it is accordingly the principal objective of this
invention to provide a gas burner of capable economical manufacture
and suitable for connection to a gas supply with a minimum of
auxiliary components.
With the above-stated principal objective in view there is provided
according to the invention a gas burner body fabricated from sheet
metal and comprising a base member and a cover member said members
in assembly defining a burner housing and a gas duct for connection
with a gas supply to direct gas therefrom to a burner assembly
supported in the burner housing. Conveniently, the gas duct defined
by the assembled base and cover members may include one or more
ports to permit air to mix with the gas stream during its passage
therethrough.
Gas burners in accordance with the invention may be thus fabricated
from economical stampings with an attendant cost reduction in that
at least one connector of the prior art devices is eliminated.
Further by suitable design the burner assembly may also comprise
several metal stampings with the advantage that the burner and body
components may be assembled in one pressing operation.
A practical arrangement of the invention will now be described with
reference to the accompanying drawings in which:
FIG. 1 is a general perspective view of the burner from above;
FIG. 2 is a general perspective view from below; and
FIG. 3 is a longitudinal cross-sectional view of the burner shown
in FIGS. 1 and 2.
Referring now to the drawings the burner shown comprises a base
member 1 and a cover member 2, each pressed from sheet steel of
about 16 gauge.
The cover member 2 comprises an annular portion 3 with a dependent
skirt 4 on its upper face and a flange portion 5 about its
periphery. The skirt tapers from the annulus to a diameter less
than the annulus. Extending diametrically from the annular portion
3 is a flat cover portion 6 for a purpose to be subsequently
described and including a flange portion 5a continuous with the
flange 5 on the annular portion. The base member 2 is of generally
circular configuration and of a diameter similar to the annular
portion of the cover member.
A lateral extension 7 of similar dimensions to the cover portion 6
on the cover member is provided and a channel 8 is formed in this
extension extending across the face of the base member to a point
in the general vicinity of its center. The base member 1 and cover
portion 2 are assembled in juxtaposition and united by turning the
peripheral flange portions 5 and 5a on the cover member 1 over the
periphery of the base member 2, the cover portion 6 of the cover
member being disposed over the lateral extension 7 of the base
member to form a gas duct defined by the channel 8. A burner
housing 9 is similarly defined by the base member 1 and the skirt 4
dependent upon the upper surface of the cover member 2 and thus if
before the base and cover members are united a burner assembly
indicated for example only by member 10, is located in this housing
the complete burner may then be assembled by a simple
flange-turning operation. The extremity of the gas duct 8 defined
by the channel and cover portion may be provided with an aperture
11 of any suitable shape to locate or direct a gas jet or the like
(not shown) and may include one or more air ports 12 to permit air
to mix with gas directed through the duct 8 by the gas jet. In
operation the gas-air mixture flows along the duct 8 to the burner
housing 9 and out through the member 10 to atmosphere for
combustion. The member 10 is shown for simplicity only as the
burner assembly would normally include one or more perforated
baffle plates located in position on the base member 1 in the
housing 9 below the member 10, and supporting the member 10 in the
position it occupies in drawings.
* * * * *