U.S. patent number 3,871,356 [Application Number 05/421,012] was granted by the patent office on 1975-03-18 for gas range grate.
This patent grant is currently assigned to Raytheon Company. Invention is credited to Domenick Saponara.
United States Patent |
3,871,356 |
Saponara |
March 18, 1975 |
GAS RANGE GRATE
Abstract
A gas cooking range having a main cooktop with a plurality of
top burner units therein and grates mounted over each of the
respective burner units for supporting utensils thereon, and means
comprising a baffle provided in a side of each grate for deflecting
upwardly combustion products which are formed at the burner units
to thereby prevent such combustion products from unduly heating
adjacent walls in a flush-to-wall installation.
Inventors: |
Saponara; Domenick (Macungie,
PA) |
Assignee: |
Raytheon Company (Lexington,
MA)
|
Family
ID: |
23668822 |
Appl.
No.: |
05/421,012 |
Filed: |
December 3, 1973 |
Current U.S.
Class: |
126/215;
126/214C |
Current CPC
Class: |
F24C
15/107 (20130101) |
Current International
Class: |
F24C
15/10 (20060101); F24c 015/10 () |
Field of
Search: |
;126/214D,215,214C |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Favors; Edward G.
Attorney, Agent or Firm: Murphy; H. A. Pannone; J. D.
Meaney; J. T.
Claims
I claim:
1. A gas cooking range having a maintop, at least one burner
opening in said maintop adjacent one edge thereof, a burner located
within said opening and, having flame ports therein at which flames
are normally produced which flames normally create combustion
products directed generally laterally in the direction of said edge
and onto adjacent structure located adjacent said edge, a grate
mounted in said opening over the burner, and comprising a pair of
radially extending members, and means carried by said grate at a
level above said ports for deflecting said combustion products in a
generally upward direction to avoid overheating of said adjacent
structure, said means comprising a deflector connected between said
members adjacent the outer ends thereof.
2. A range as set forth in claim 1 wherein said grate is shaped to
fit within said opening with the deflector positioned substantially
parallel to said edge of the maintop.
3. A range as set forth in claim 1 wherein said deflector is a
baffle provided on its upper side with means for metering flow of
combustion products.
4. A range as set forth in claim 3 wherein said means for metering
flow of combustion products comprises a notch of predetermined size
in the upper side of said baffle.
5. A gas range grate comprising an open network of heat-resistant
rigid members adapted to be positioned above a burner element of
the range, said network including a number of radially extending
members, support means fixed to and interconnecting said radially
extending members, and a deflector connected between two adjacent
radially extending members adjacent the outer ends thereof and at a
level above the support means for deflecting combustion products
from said burner element in a generally upward direction.
6. A grate as set forth in claim 5 wherein said support means
includes a longitudinally extending marginal portion, and said
deflector extends substantially parallel to said marginal
portion.
7. A grate as set forth in claim 5 wherein said deflector is a
baffle provided on its upper side with means for metering flow of
combustion products.
8. A grate as set forth in claim 7 wherein said means for metering
flow of combustion products comprises a notch of predetermined size
in the upper side of said baffle.
Description
BACKGROUND OF THE INVENTION
Normally, gas ranges are certified for "flush-to-wall" installation
which means that the rear of the range may be flush with a rear
wall and the sides may either or both be flush with adjacent
countertop cabinets. When a side wall extends above a countertop or
range height, the range normally must be spaced a specified
distance from the side wall, usually two to four inches depending
on the range configuration.
The reason for such spacing between the range and sidewall is
because a conventional range usually has two burners on each end of
a divided maintop, and this causes at least two of the burners to
be located in relatively close proximity to the sidewall extending
above the cooking top of the range.
It has been found that combustion products generated by such
burners will rise and will be deflected by a cooking utensil in a
sideways direction onto the adjacent sidewall, resulting in
objectionably high temperatures on the wall surface.
It will be apparent that such high temperatures can be reduced by
moving the range away from the sidewall or by overlying the wall
surface with material which will not be damaged by heat. Such
overlying is unsightly and may be expensive. Also, when a space is
produced between the range and sidewall, this can be inconvenient
and undesirable unless some form of filler or cap is provided. This
also may be unsightly and expensive. Furthermore, in small
apartments or kitchens space in often at a premium and cannot be
wasted in this way.
SUMMARY OF THE INVENTION
The above and other objections to conventional gas range
installations of this character are overcome by the present
invention which permits a range to be located flush to a sidewall
which extends to a height above the range. This improvement is
achieved by the provision of grates which support the cooking
utensil in the known manner but which are provided at their sides
with deflectors or baffles for the purpose of deflecting upwardly a
substantial portion of the hot combustion products rising from the
burner.
In one embodiment of the invention the top edge of the baffle is
notched to a predetermined depth and width in order to provide
efficient metering of the flow of the combustion products. The
baffle is a deflector or web which may be flat or curved, and may
be provided on one side only of a grate or on two diametrically
opposed sides, as desired. Thus, when combustion products are
directed upwardly, instead of being permitted to flow directly
toward the sidewall, the temperature of the sidewall is maintained
at a considerably lower and safer level. Accordingly, a range
embodying the invention may be installed flush with the
sidewall.
BRIEF DESCRIPTION OF THE DRAWINGS
The above and other advantages of the invention will become
apparent from the following description taken in connection with
the accompanying drawings, wherein:
FIG. 1 is a front elevational view of a gas cooking range installed
in flush relation with a sidewall;
FIG. 2 is an enlarged view partly in section of a burner and grate
portion of the range in FIG. 1;
FIG. 3 is a top plan view of the grate and adjacent portion of the
range top shown in FIG. 2; and
FIG. 4 is a side elevational view of the grate shown in FIG. 3.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring more particularly to the drawings wherein like characters
of reference designate like parts throughout the several views, a
gas cooking range 10 which embodies the invention is shown in FIG.
1. Although a free-standing range 10 is shown, it is to be
understood that the invention may be applied to other types of
ranges if desired. Range 10 embodies a conventional oven portion
12, and a cooking top 14 which includes one or more burner units in
the known manner. Range 10 is shown in flush relation with a
sidewall 16 and is closely spaced to the wall only because the
invention is embodied in the range; otherwise a space of two to
four inches would be required between the range and the wall.
The cooking top is provided with one or more burner apertures 18,
one only of which is shown in FIG. 3, within which are located
respective burner units 20. Marginal portions 22 of the top 14
around the burner apertures are recessed as shown in FIG. 2 and are
formed with a peripheral ledge or shelf portion 24 upon which a
respective grate 26 is located.
In many conventional gas ranges there are provided two burner units
which are disposed relatively close to the adjoining sidewall.
In the normal operation of a burner unit as shown in FIG. 2, upon
manual manipulation of a selected knob 28, gas is supplied from a
suitable source through conduit or pipe 30 into the burner head 32
from which it exits through ports 34. Upon ignition, the gas-air
mixture burns on the surface of the head as a conventional and
well-known blue flame. During this process hot combustion products
are formed which flow upwardly from the burner but will be
deflected by a pot or utensil 34 on the grate 26 toward the
sidewall 16 as shown by the dashed line A in FIG. 2, thus
undesirably heating the wall.
The grate 26 is normally a network of rigid metal such as cast
iron, steel or the like which includes a circumferential rodlike
member 38 which rests upon shelf 24. Rigidly secured as by welding
to member 38 are a number of radially extending legs 40 upon which
the pot 36 is actually supported. The burner unit 20 is located
within the recessed portion 22 of the cooking top and thus is
enabled to direct its flames onto the underside of the pot 36.
In accordance with the present invention, the gate 26 is provided
on at least its side nearest the wall 16 with a baffle or deflector
42 which extends between two adjacent spaced legs 40 of the grate.
The deflection 42 is of rigid metal and is mounted upon the legs 40
as by welding and is positioned to present a flat side surface
parallel to the wall to intercept the flow of combustion products
from the burner. Such interception of the flow causes the
combustion products to be deflected upwardly in this area of the
device as shown by dotted line B in FIG. 2. Thus the wall 16 will
not become unduly heated by such flow of combustion products,
enabling the range to be located flush with the sidewall without
causing damage to the wall by heat.
The grates 26 preferably have two such deflectors 42, one on each
side, so that grates may be interchanged on opposite sides of the
range. The grates 26 may, of course, be round or irregularly
shaped, and the deflectors 42 may be flat or slightly curved to
produce the same desired effect.
In some cases it will be necessary to provide a notch 44 of
predetermined width and depth for metering the flow of combustion
products in a desired manner.
From the foregoing it will be apparent that the objectives of this
invention have been achieved by the structure shown and described.
It is to be understood, however, that various modifications and
changes may be made by those skilled in the art without departing
from the spirit of the invention as expressed in the accompanying
claims. Therefore, all matter shown and described is to be
interpreted as illustrative and not in a limiting sense.
* * * * *