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Publication numberUS2479042 A
Publication typeGrant
Publication dateAug 16, 1949
Filing dateJun 9, 1943
Priority dateJun 9, 1943
Publication numberUS 2479042 A, US 2479042A, US-A-2479042, US2479042 A, US2479042A
InventorsRichard I Gaines
Original AssigneeRichard I Gaines
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Water heater
US 2479042 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Aug 16, 1949. R. l. GAMES 2,479,042

WATER HEATER Filed June 9, 1943 I l 3f Pfc/lara' ,I Ga/be.

4 f l: 23 /0 .3 By

29 p ATToRNE Patented Aug. 16, 1949 UNITED STATES s PATENT OFFICE Richard I. Gaines, Port Arthur, Tex. Application June 9, 1943, Serial No. 490,128

6 Claims. (Cl. 122-17) This invention relates to water heaters and y has for its principal object to provide a heater structure in which the heat of a burner is applied to obtain substantially greater efciency from a given amount of fuel.

Other objects of the invention are to lprovide a heater structure having a relatively large surface heated by radiation and by direct contact of hot gases of combustion; to provide an improved burner structure having radiants for spreading the flame of the burner relatively to the heating surfaces of the heater tank; and to provide a water heater with an interior burner chamber completely contained within the tank of the heater and connecting with a flue extending through the heater tank.

In accomplishing these and other objects of the invention, I have provided improved details of structure, the preferred form of which is illustrated in the accompanying drawings, wherein:

Fig. 1 is a perspective section tl'iroughl a water heater embodying the features of the present invention.

Fig. 2 is a fragmentary perspective view of the lower portion of the burner chamber.

Fig. 3 is a perspective view of the refractory element of the burner.

Fig. 4 is a perspective View of the gas distributing element of the burner.

Referring more in detail to the drawings:

l designates a domestic type water heater constructed in accordance with the'present invention and which includes a tank 2 having a preferably cylindrical wall 3 closed at the ends by top and bottom heads 4 and 5 to form a water chamber 6. The top head 4 is preferably welded to the upper portion of the wall 3 or otherwise connected to provide a leak-tight joint capable of retaining water under pressure. The bottom head 5 is inset within the lower end of the wall 3 and has .an annular flange 1 welded to the inner face of the .fwall 3 to form a leak-tight joint.

Carried by the bottom head 5 and extending upwardly therefrom and inwardly of the tank is a burner compartment 8 that is formed by an annular wall 9 having a skirtv if! depending below the head 5. The wall 9 is of a diameter to provide a circulating space Il therearound and the upper end connects with a flue i2 that extends upwardly through the tank and projects from the top head 4 to form a collar i3 thereabove.

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The collar I3 may be connected with -a vent pipe I4 leading to a chimney or the like (not shown) for carrying of spent products of combustion and to establish an inflow of combustion supporting air to the burner chamber.

The tank thus described may be covered with a suitable insulating material l5 and enclosed in a jacket I6 as in conventional water heater construction. Water is admitted to the tank through 2 a pipe l1 extending downwardly head 4 and terminating in the water space Il that surrounds the burner compartment. The upper end of the pipe il projects through the jacket and connects by a fitting i8 which in turn is connected by a pipe I9 with a source of water service supply. Hot water is discharged from the tank Vthrough a pipe 2l! that is connected by a fitting 2| with a nipple 22 attached to the top head 4.

The burner 23 includes a circular gas distributor 24 in the form of a hollow ring having a plurality of gas outlet orifices 25 in the upper face thereof. Formed on the top of the distributor and within the apertured portion of the ring is an annular ledge Z6 that Aseats a radiant refractory element 21, later described. A comthrough the top bustible mixture is supplied to the distributor through a duct-like arm 23 having connection through a venturi 29 with an air and gas mixer' 30, the mixer 30 being supplied with gas through a valve 3l under control of the usual thermostat 32, the specific form of which forms no part of the present invention.

The heat radiant element 2l includes a hollow cylindrical body 33 formed of refractory material and is closed at the upper end as at 35i and open at the bottom as shown at 35. TheV diameter of the body substantially conforms to that cf the ledge 26 and when seated thereon, the flames from the burning gas play upwardly upon the circumferential surface of the refractory. In order-to increase the eiiiciency of the refractory, the surface thereof has a plurality of projections 36 thereon which are contacted by the llames. These projections act to increase the height of the flames and cause'them to extend over a greater area. The radiant element .is supported in upright position concentrically of the burner chamber by legs 3l extending-radially and downwardly from the wall thereof to seat upon a plurality of lugs 38 of the burner ring, the lugs `:i8 being supported in seats 35 of substantially bayonet-shaped slots il in the skirt lll and through which the lugs are passed when removing or mounting the burner ring. When the burner is in operation, the flames play upwardly of the exterior surfaces of the refractory and raise the temperature of the projections to an intense heat, which heat assures complete ignif tion of all the gas before discharge into the flue duct. The hot gases resulting from combustion give up their heat to the surfaces of the burner compartment and flue duct, which surfaces conduct the heat to the water within the tank. The refractory element thus not only helps to burn the gas but it increases the height of the llames of the burner relatively to the heating surfaces and it also provides radiant surfaces from which heat is radiated to the wall of the heating through the flue so that substantially all of theY B. t. u.s resulting from combustion of the fuel is absorbed from the gases by the time they discharge into the vent pipe I4.

From the foregoing it is obvious that I have Iprovided a water heater having a substantially greater heating surface and which is heated ..by.

both radiant heat and direct heat of combustion to increase efiiciency of the water heater.

What I claim and desire to secure by Letters Patent is:

1. A heater of the character described including, a tank containing a liquid to be heated, means forming an open Ibottom burner compartment within the tank adapted to be surrounded by liquid contained in the tank, a skirt depending from and encircling the open bottom of the burner compartment and having lug engaging slots therein, a burner within said compartment and having lugs engaged in said slots to maintain the burner coaxially of the compartment, and a refractory supported over the burner.

2. A heater of the character described including, a tank containing a liquid to be heated, means forming an open bottom burner compartment within the tank adapted to be surrounded by liquid contained in the tank, a skirt depending from and encircling the open bottoni of the burner compartment and having lug engaging slots therein, a burner having radial lugs engaged in said slots to support and space the burner from the skirt to provide an annular passageway for 'combustion supporting air, and a substantially cylindrical refractory above the burner and having legs seated upon said lugs, said refractory having projections extending into the path of flame from the burner.

3. A heater of the character described including, a tank containing a liquid to be heated,

means forming an open bottom burner compart- Y ment within the tank adapted to be surrounded by said liquid,` a skirt depending from the open bottom of the burner compartment and having lug engaging seats therein, a burner ring having radial lugs engaged in said seats to support the burner and having an annular refractory supporting ledge concentric with the burner compartment, and a substantially open bottom cylindrical refractory seated on said ledge and having legs seated upon said lugs, said burner having orifices arranged in circular series circumferentially of said ledge and said refractory having projections extending into the path of flame from the burner.

4, A heater of the character described including, means forming an open bottom burner compartment having a heating surface adapted to be surrounded by liquid to be heated, a skirt depending from the open bottom of the burner compartment and having lug engaging seats therein, a Iburner having radial lugs engaged in 4 said seats to support the burner and space the burner from said skirt to provide an annular air passageway therebetween, said burner having a refractory supporting ledge, and a substantially cylindrical refractory seated on said ledge and having legs seated upon the lugs, said burner having orices located outwardly from said ledge and said refractory having projections extending into the path of flame from the burner for radiating heattol the heating surface.

5. In a water heater of the character described including a tank having an inner annular wall open at. the bottom and projecting upwardly Within the tank to provide a burner chamber, a ilue extending upwardly within the tank and connected to the top of said wall, a burner ring spaced inwardly from said wall to provide an air passageway therebetween, radial lugs extending outwardly fro-m the burner ring, said wall carrying supportin-g means for said lugs to support the burner ring and maintain the burner ring concentrically of the burner chamber, an open bottom, cylindrical refractory concentrically of the burnerv ring and having a cylindrical surface spaced uniformlyv from said wall, and legs on said cylindrical refractory engaged with parts of the burner ring to maintain concentric position of said refractory.

6. A heater of the character described including a tank for containing a liquid to be heated, a substantially cylindrical wall forming a burner compartment within the tank and adapted to be surrounded by the liquid to be contained in the tank, a substantially ring-sha-ped burner including a refractory support concentrically disposed with respect to and inwardly of the inner circumference of said ring-shaped burner, means supporting the burner substantially coaxially within the burner compartment, a cylindrical refractory element carried on and in contact with said support throughout the circumference thereof and having a heat radiating surface spaced from said wall to provide a llame space therebetween, said, burner having jet'openings into said space to direct llames in contact with said radiating surface to raise the effective height of the flames and Yeffect direct radiation of heat of the ames on said cylindrical wall of the burner compartment.

RICHARD I. GAINES.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 368,332 Gillespie Aug. 16, 1887 717,214 Kemp Dec. 30, 1902 1,195,260 Palmer Aug. 22, 1916 1,494,499 O-Dowd May 20, 1924 1,529,871 Conroy et al Mar. 17, i925 1,706,416 Schwartz Mar. 26, 1929 1,735,945 Wollaston Nov. 19, 1929 1,852,154 Drake et al Apr. 5, 1932 1,910,711 Packer Mar. 23, 1933

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US368332 *Aug 16, 1887 Peters
US717214 *Oct 29, 1901Dec 30, 1902Clarence M KempHeating apparatus.
US1195260 *Dec 20, 1915Aug 22, 1916 Gas-hbatjs
US1494499 *Oct 24, 1919May 20, 1924William M Crane CompanyHeating apparatus
US1529871 *Jul 7, 1924Mar 17, 1925Conroy James PGas heater
US1706416 *Nov 11, 1922Mar 26, 1929Gerhardt F SchwartzWater tank and radiant fire arrangement
US1735945 *Jul 16, 1928Nov 19, 1929Wollaston Thomas RolandBoiler and the like
US1852154 *Sep 20, 1928Apr 5, 1932Harry BuchertGas fired furnace
US1910711 *Mar 4, 1931May 23, 1933F O SchoedingerGas burner
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2684054 *May 17, 1951Jul 20, 1954Carson Hiram JGas fired water heater
US3225757 *Nov 9, 1962Dec 28, 1965Hazen Engineering CompanyRadiant tube heaters
US4651714 *Oct 18, 1984Mar 24, 1987A. D. Smith CorporationHigh efficiency water heater
US4817564 *Mar 21, 1988Apr 4, 1989A. O. Smith CorporationWater heater construction
US4911108 *Jan 9, 1989Mar 27, 1990A. O. Smith CorporationWater heater construction
US5511516 *Nov 3, 1994Apr 30, 1996Sabh (U.S.) Water Heater Group, Inc.Water heater with low NOx ceramic burner
US5797355 *Apr 3, 1996Aug 25, 1998Srp 687 Pty LtdIgnition inhibiting gas water heater
US5950573 *Oct 16, 1998Sep 14, 1999Srp 687 Pty. Ltd.Power vented water heater with air inlet
US6003477 *Feb 14, 1997Dec 21, 1999Srp 687 Pty. Ltd.Ignition inhibiting gas water heater
US6082310 *Feb 2, 1999Jul 4, 2000Srp 687 Pty. Ltd.Air inlets for water heaters
US6085699 *Aug 21, 1998Jul 11, 2000Srp 687 Pty Ltd.Air inlets for water heaters
US6085700 *Feb 3, 1999Jul 11, 2000Srp 687 Pty Ltd.Heat sensitive air inlets for water heaters
US6116195 *Feb 1, 1999Sep 12, 2000Srp 687 Pty Ltd.Flame traps for water heaters
US6135061 *Jul 24, 1998Oct 24, 2000Srp 687 Pty Ltd.Air inlets for water heaters
US6138613 *Aug 21, 1998Oct 31, 2000Srp 687 Pty Ltd.Ignition inhibiting gas water heater
US6142106 *Aug 21, 1998Nov 7, 2000Srp 687 Pty Ltd.Air inlets for combustion chamber of water heater
US6155211 *Feb 2, 1999Dec 5, 2000Srp 687 Pty Ltd.Air inlets for water heaters
US6196164Aug 17, 1999Mar 6, 2001Srp 687 Pty. Ltd.Ignition inhibiting gas water heater
US6223697Aug 21, 1998May 1, 2001Srp 687 Pty Ltd.Water heater with heat sensitive air inlet
US6269779Aug 21, 1998Aug 7, 2001Srp 687 Pty Ltd.Sealed access assembly for water heaters
US6293230Oct 20, 1998Sep 25, 2001Srp 687 Pty Ltd.Water heaters with flame traps
US6295951Dec 9, 1996Oct 2, 2001Srp 687 Pty. Ltd.Ignition inhibiting gas water heater
US6302062Jun 10, 1999Oct 16, 2001Srp 687 Pty Ltd.Sealed access assembly for water heaters
US6401668Jan 16, 2001Jun 11, 2002Srp 687 Pty. Ltd.Ignition inhibiting gas water heater
US6418883Mar 14, 2001Jul 16, 2002Srp 687 Pty. Ltd.Ignition inhibiting gas water heater
US6725811Jan 11, 1996Apr 27, 2004American Water Heater CompanyWater heater with low NOx fiber matrix burner
US8087388 *Apr 23, 2008Jan 3, 2012Paloma Indusrties, LimitedWater heater
US8117996 *Apr 23, 2008Feb 21, 2012Paloma Industries, LimitedWater heater
EP1985941A2 *Apr 25, 2008Oct 29, 2008Paloma Industries, Ltd.Water heater
EP1985942A2Apr 25, 2008Oct 29, 2008Paloma Industries, Ltd.Water heater
Classifications
U.S. Classification122/17.1, 122/367.1, 165/904
International ClassificationF24H1/20
Cooperative ClassificationY10S165/904, F24H1/206
European ClassificationF24H1/20C2