US2881829A - Pilot light burners - Google Patents
Pilot light burners Download PDFInfo
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- US2881829A US2881829A US2881829DA US2881829A US 2881829 A US2881829 A US 2881829A US 2881829D A US2881829D A US 2881829DA US 2881829 A US2881829 A US 2881829A
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- 239000000203 mixture Substances 0.000 description 20
- 238000004140 cleaning Methods 0.000 description 6
- 238000007664 blowing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 230000001105 regulatory Effects 0.000 description 2
- 239000004544 spot-on Substances 0.000 description 2
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/10—Arrangement or mounting of ignition devices
- F24C3/106—Arrangement or mounting of ignition devices of flash tubes
Definitions
- Another object is to provide a pilot burner with a
- a further object is to provide a pilot burner having a small orifice formed with a thin wall, whereby the flame. will burn at the extreme outer end of the nozzle.
- the pilot light is so designed that the constantly burning light is close to the ignition port fitting of I the gas burner.
- the device is readily adaptable to a central pilot gas supply serving a plurality of pilot burners, each pilot being hooded so as to protect the flame.
- the device is so constructed that the shield and ignition port fitting may be easily and quickly removed from the burner for cleaning.
- Fig. 1 is a fragmentary side elevation of a front gas burner equipped with the invention
- Fig. 1A is a similar view of a different style of, gas burner shown in a rear burner position;
- FIG. 2 is an enlarged fragmentary sectional elevation of the form of invention shown in Fig. 1;
- Fig. 3 is a similar view of the form of invention shown in Fig. 1A;
- Fig. 4 is an enlarged plan view of the form shownin Fig. 2;
- Fig. 5 is an end elevation of the form of invention shown in Fig. 4 and is taken'on'line V-V of Fig. 2;
- Fig. 6 is an elevation of the same structure viewed from the end opposite from that shown in Fig. 5;
- Fig. 7 is a sectional elevation of the form of invention shown in Fig. 3 and is taken on line VIIVII thereof;
- Fig. 8 is a bottom fragmentary plan view of the form of invention shown in Fig. 3;
- Fig. 9 shows a modified form of the pilot tube
- Fig. 10 is a sectional plan view of a nozzle body formed with nozzle protecting guards.
- Fig. 11 is an end elevation of. a modified form of shield similar to that shown in Fig. 5.
- a typical gas range installation comprising a front burner 10 and a rear burner 11.
- the front burner is carried by a suitable support (not shown) and is supplied with gas mixture through a mixing tube 12 which is connected to the usual burner shut-off valve 13, which is provided with an actuating handle 14.
- the gas supply pipe is represented at 15 and supplies the gas valve 13 for the burner 10 as 2,881,828 Patented Apr. 14, 1959 ice well as a similar gas valve (not shown) for the mixing tube 16 of the rear burner 11.
- the front burner 10 is formed with a passage 20 in communication with the mixing tube 12 into which is fitted the stem 21 of an ignition port fitting 22.
- the stem 21 may be slightly tapered so as to provide a gas-tight joint which may be easily separated for cleaning.
- the pilot burner for the front gas burner is carried by the ignition port fitting 22.
- a shield 24 is provided for the pilot burner and has its forward end 23mounted upon the fitting.
- the end 23.of the shield has a top wall portion 25 at its forward end and two side depending walls 26 which are arranged adjacent to and closely fit the side walls of the ignition port fitting.
- This fitting is formed with an upstanding boss 30 which is passed through an aperture formed in. the top wall portion 25 of the shield and which is provided with a riveted head 31 after assembly, whereby the parts are secured together.
- the side walls 26 have two opposite offset arms 32 which extend rearwardly and form a part of the shield 24.
- the side portions of the shield at the end opposite the ignition port fitting are provided with two inwardly extending arms 33 which are formed at their inner upper ends with arcuate surfaces 34 forengagement with a pilot tube 35. 1 These arcuate surfaces form an inverted U-shaped recess, whereby the shield may be lifted off of the tube 35 when the gas burner is removed for cleaning.
- the inwardly extending arms 75 closely fit the pilot tube 35 around which they are disposed.
- the pilot tubes are connected to a central T-member 36 which is fed with gas by means of a pilot supply pipe 40 supported by a suitable bracket indicated at 17. This pipe is suitably connected to the gas supply pipe 15 through a filter 18 which is provided with a pilot adjusting screw 41.
- the pilot burner for the rear burner 11 is formed with an ignition port fitting 42 of slightly different construction.
- This fitting is provided with a sleeve 43 which is formed preferably with longitudinal serrations and which is pressed into an opening formed'in the side wall of the rear burner for permanent attachment thereto.
- the fitting is formed immediately in front of the wall with an annular groove 44 for the reception of a lateral wall 45 formed at the inner end of the shield 52.
- This wall connects and forms a part of the two opposite end walls 46 of the shield.
- a vertically disposed wall 50 is extended outwardly from each of the walls 46 in spaced relation with each other for contact with flattened surfaces 51 formed on opposite sides of the ignition port fitting.
- the end walls of the shield are spaced from the body of the shield by means of a top wall portion 53 in which a slot 54 is formed.
- This shield is formed with two spaced side walls 55 for protecting the pilot light against extinguishing air currents.
- the ignition port fitting 22 of Fig. 2 is formed with a vertical aperture '56 in its sleeve portion 21 which communicates with a vertical offset port and a lateral communicating port 61 formed in the fitting, whereby gas mixture supplied to the front burner 10 will pass up through aperture 56 out through ports 60 and 61.
- the gas mixture passing through port 61 will be projected toward and ignited by the pilot light, and that passing through port 60 having. been ignited will in turn ignite the gas mixture issuing from the burner head 10.
- the sleeve 43 of the ignition port fitting 42 of the form of invention adapted to the rear burner is formed with a central aperture 62 which communicates with a recess 63 from which is extended a lateral port 64 and an axial port 65 which function in a manner similar to that described in connection with the form shown in Fig. 2.
- the ignition port fittings 22 and 42 are each formed with a slot 66 and a slot 17, respectively, which connects the ports 60 and 7 61,764 and 65,. thereofi respectively,- andtends to induce the upward flow of burningagas mixture toward the respective burner heads.
- Thefi'pilot tube in each form of the" invention is so" lbeate'd that" the nozzle thereofl either in substantially the same: horizontal: plane as: the axial: portofthe ignition: port fitting or: below the same.
- the pilot tube 35 of each pilot burner: comprises a body part 70,- the inner end; of: which is secured to the 'l' m'ember 36*, whereby it receives gas from: the pipe 15 through the supply pipe 40-;
- Each pilot tube is provided with a nozzle 11 having: a: very small: orifice formed therein.
- the length of the nozzle is many timesgreater than" its diameter, whereby the lifting: of the small: flame from the nozzle is. prevented.
- the nozzle is' carried preferably by' a bushing 73 which? is pressed into the end of. the body part 70
- the body part of each tube preferably has a very thin wall.
- FIG. 9 I show a modified form ofpilottube 74 having a body port 75 and an. integral nozzle 76: which is formed preferably by swagin'g'.
- nozzles of the pilot tubes are very small andhave walls-ofminute thickness, comparable to a hypodermic needle, it is desirable toprot'ect the endsthereof from accidental damage; andv to accomplish this, two oppositely disposed arms" 80 are provided, one on each side of the nozzle.
- Each of these arms is preferably formed from the body 70 of'the pilot tube and is flaredoutwardly as shown in Fig; 10 to position the outer ends thereof away from the pilot nozzle 71'. These armsproject somewhat beyond the end of the nozzle, and prevent the flame of the pilot from' burning inthe space between the arms and the nozzle.
- a branch supply pipe (not shown) is connected to the T-member 36 in well known manner, thus conducting gas to the pilot tube of the other burners' not shown).
- the gas projected from port 61 will pass under the shield 24' and be ignited by the pilot flame atthe end of the nozzle 71.
- the flame at port 61 will flash back and ignite the gas emitted from orifice 60 and slot 66 which will be projected upwardly toward the gas mixture coming from the burner itself, thereby igniting the same.
- the resulting mixture will flow through ports '62 and 63 of the ignition port fitting and out through passages 65 and 64 and slot 66.
- the gas mixture flowing from the passage 65 will be ignited by the flame of the associated pilot nozzle which will simultaneously ignite the gas mixture flowing through passage64 and slot 66 there '4? by causing ignition of the gas coming from the burner.
- a pilot burner device including a substantially horizontally disposed shield means defining a closed upper surfaceand a pair of depending side walls defining a cavity, a substantially horizontally disposed tubular body part extending into said cavity, said tubular body part having a closed end portion, a tubular nozzle projecting forwardly of said closed end portion and extending through said closed end portion and being in communication with the: interior of said" body part; said nozzle beingof elongated configuration and having a Wall.
- the length-of said nozzle being at least tentim'es as great as the inner diameter thereof whereby the pilot flame will burn at the extreme outer end of the nozzle, the inner diameter of said nozzle being many times less than the inner diameter of said body part, a plurality of arms extending from the outer end of" said body part adjacent said nozzle, said arms extending on opposite sides of said nozzle and projecting forwardly beyond the outer-end of the nozzle, said arms flaring out- Wardly in a forward direction, the free outer ends of said arms being.
- said ignition port means being provided with ports, means providing communication 'betweensaid ports and a source of'gas; atleast oneof said ports being disposed adjacent to and opening toward said shield means for directing a" stream of gas-within the cavity defined by said shield, said nozzle being disposed in substantially the same horizontal plane as said last mentioned port for insuring ignition:of a stream of gas; issuing: from said-port by the pilot flame: at the end portion of 'saidnozzle.
- Apparatus as define-d in claim 1 including a gas burner, said i'gnition-por-t means being disposed adjacent to and below the top surface-of said burner, said ports including offset interconnected ports, one of said ports extending vertically for directing a stream of gas up Wardly: toward: said burner.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Description
v B. L. MATTHEWS E'TAL 2,881,829
April 14, 1959 PILOT LIGHT BURNERS Filed April 5Q, 1956 United States Patent 2,881,829 PILOT LIGHT BURNERS Birchard L. Matthews and Edward J. Zarybnicky, Cleveland, Ohio, assignors to The W. J. Schoenberger Company, Cleveland, Ohio Application April 30, 1956, Serial No. 581,606
3 Claims. (Cl. 158-115) Another object is to provide a pilot burner with a,
very small port thus reducing the B.t.u. consumption.
A further object is to provide a pilot burner having a small orifice formed with a thin wall, whereby the flame. will burn at the extreme outer end of the nozzle.
Moreover, the pilot light is so designed that the constantly burning light is close to the ignition port fitting of I the gas burner.
Furthermore, the device is readily adaptable to a central pilot gas supply serving a plurality of pilot burners, each pilot being hooded so as to protect the flame.
Moreover, the device is so constructed that the shield and ignition port fitting may be easily and quickly removed from the burner for cleaning.
The above objects and advantages have been accomplished by the device shown in the accompanying drawings, of which:
Fig. 1 is a fragmentary side elevation of a front gas burner equipped with the invention;
Fig. 1A is a similar view of a different style of, gas burner shown in a rear burner position;
Fig. 2 is an enlarged fragmentary sectional elevation of the form of invention shown in Fig. 1;
Fig. 3 is a similar view of the form of invention shown in Fig. 1A;
Fig. 4 is an enlarged plan view of the form shownin Fig. 2;
Fig. 5 is an end elevation of the form of invention shown in Fig. 4 and is taken'on'line V-V of Fig. 2;
Fig. 6 is an elevation of the same structure viewed from the end opposite from that shown in Fig. 5;
Fig. 7 is a sectional elevation of the form of invention shown in Fig. 3 and is taken on line VIIVII thereof;
Fig. 8 is a bottom fragmentary plan view of the form of invention shown in Fig. 3;
Fig. 9 shows a modified form of the pilot tube;
Fig. 10 is a sectional plan view of a nozzle body formed with nozzle protecting guards; and
, Fig. 11 is an end elevation of. a modified form of shield similar to that shown in Fig. 5.
In Fig. l of the drawings, there is shown a typical gas range installation comprising a front burner 10 and a rear burner 11. The front burner is carried by a suitable support (not shown) and is supplied with gas mixture through a mixing tube 12 which is connected to the usual burner shut-off valve 13, which is provided with an actuating handle 14. The gas supply pipe is represented at 15 and supplies the gas valve 13 for the burner 10 as 2,881,828 Patented Apr. 14, 1959 ice well as a similar gas valve (not shown) for the mixing tube 16 of the rear burner 11. The front burner 10 is formed with a passage 20 in communication with the mixing tube 12 into which is fitted the stem 21 of an ignition port fitting 22. The stem 21 may be slightly tapered so as to provide a gas-tight joint which may be easily separated for cleaning. The pilot burner for the front gas burner is carried by the ignition port fitting 22. A shield 24 is provided for the pilot burner and has its forward end 23mounted upon the fitting. The end 23.of the shield has a top wall portion 25 at its forward end and two side depending walls 26 which are arranged adjacent to and closely fit the side walls of the ignition port fitting. This fittingis formed with an upstanding boss 30 which is passed through an aperture formed in. the top wall portion 25 of the shield and which is provided with a riveted head 31 after assembly, whereby the parts are secured together. The side walls 26 have two opposite offset arms 32 which extend rearwardly and form a part of the shield 24. The side portions of the shield at the end opposite the ignition port fitting are provided with two inwardly extending arms 33 which are formed at their inner upper ends with arcuate surfaces 34 forengagement with a pilot tube 35. 1 These arcuate surfaces form an inverted U-shaped recess, whereby the shield may be lifted off of the tube 35 when the gas burner is removed for cleaning. In the form of invention shown in Fig. 11, the inwardly extending arms 75 closely fit the pilot tube 35 around which they are disposed. The pilot tubes are connected to a central T-member 36 which is fed with gas by means of a pilot supply pipe 40 supported by a suitable bracket indicated at 17. This pipe is suitably connected to the gas supply pipe 15 through a filter 18 which is provided with a pilot adjusting screw 41.
The pilot burner for the rear burner 11 is formed with an ignition port fitting 42 of slightly different construction. This fitting is provided with a sleeve 43 which is formed preferably with longitudinal serrations and which is pressed into an opening formed'in the side wall of the rear burner for permanent attachment thereto. The fitting is formed immediately in front of the wall with an annular groove 44 for the reception of a lateral wall 45 formed at the inner end of the shield 52. This wall connects and forms a part of the two opposite end walls 46 of the shield. A vertically disposed wall 50 is extended outwardly from each of the walls 46 in spaced relation with each other for contact with flattened surfaces 51 formed on opposite sides of the ignition port fitting. The end walls of the shield are spaced from the body of the shield by means of a top wall portion 53 in which a slot 54 is formed. This shield is formed with two spaced side walls 55 for protecting the pilot light against extinguishing air currents.
The ignition port fitting 22 of Fig. 2 is formed with a vertical aperture '56 in its sleeve portion 21 which communicates with a vertical offset port and a lateral communicating port 61 formed in the fitting, whereby gas mixture supplied to the front burner 10 will pass up through aperture 56 out through ports 60 and 61. The gas mixture passing through port 61 will be projected toward and ignited by the pilot light, and that passing through port 60 having. been ignited will in turn ignite the gas mixture issuing from the burner head 10.
In similar manner, the sleeve 43 of the ignition port fitting 42 of the form of invention adapted to the rear burner (see Fig. 3) is formed with a central aperture 62 which communicates with a recess 63 from which is extended a lateral port 64 and an axial port 65 which function in a manner similar to that described in connection with the form shown in Fig. 2. The ignition port fittings 22 and 42 are each formed with a slot 66 and a slot 17, respectively, which connects the ports 60 and 7 61,764 and 65,. thereofi respectively,- andtends to induce the upward flow of burningagas mixture toward the respective burner heads. Thefi'pilot tube in each form of the" invention is so" lbeate'd that" the nozzle thereofl either in substantially the same: horizontal: plane as: the axial: portofthe ignition: port fitting or: below the same.
The pilot tube 35: of each pilot burner: comprisesa body part 70,- the inner end; of: which is secured to the 'l' m'ember 36*, whereby it receives gas from: the pipe 15 through the supply pipe 40-; Each pilot tube is provided with a nozzle 11 having: a: very small: orifice formed therein. The length of the nozzle is many timesgreater than" its diameter, whereby the lifting: of the small: flame from the nozzle is. prevented. The nozzle is' carried preferably by' a bushing 73 which? is pressed into the end of. the body part 70 The body part of each tube preferably has a very thin wall. and is ofsuch length that; it extends into' the coacting: shield a: distance sulficient' to" protect the constantly burning flame from currents of. air which. might'extinguish it; In Fig; 9, I show a modified form ofpilottube 74 having a body port 75 and an. integral nozzle 76: which is formed preferably by swagin'g'.
Since the nozzles of the pilot tubes are very small andhave walls-ofminute thickness, comparable to a hypodermic needle, it is desirable toprot'ect the endsthereof from accidental damage; andv to accomplish this, two oppositely disposed arms" 80 are provided, one on each side of the nozzle. Each of these arms is preferably formed from the body 70 of'the pilot tube and is flaredoutwardly as shown in Fig; 10 to position the outer ends thereof away from the pilot nozzle 71'. These armsproject somewhat beyond the end of the nozzle, and prevent the flame of the pilot from' burning inthe space between the arms and the nozzle.
While-I have shown but two range burners, it isob vious that the device is adaptedto any number of burners, and when more than two are used, a branch supply pipe (not shown) is connected to the T-member 36 in well known manner, thus conducting gas to the pilot tube of the other burners' not shown).
When the device is to be put into use,- gas coming from each of the pilot burner nozzles is ignited and the gas supplied to the nozzles is regulated by means of the adjustin'g'screw 41. Due'to' the. small size of the nozzle opening, the flame is very small, thereby consuming very little gas. Owing to the thinness of the nozzle wall, the flame will be held close to the end of the nozzle and thereby be prevented from-blowing away or being extinguished by induction of. air across the nozzle. When, now, the valve controlling gas to the mixing tube of the front burner is opened to supply gas to-this burner,- the mixture willv pass up through opening 56' and out through ports 60 and 61 as well as through the slot 66.
The gas projected from port 61 will pass under the shield 24' and be ignited by the pilot flame atthe end of the nozzle 71. The flame at port 61 will flash back and ignite the gas emitted from orifice 60 and slot 66 which will be projected upwardly toward the gas mixture coming from the burner itself, thereby igniting the same. In like manner, when the back burner is supplied with gas, the resulting mixture will flow through ports '62 and 63 of the ignition port fitting and out through passages 65 and 64 and slot 66. The gas mixture flowing from the passage 65 will be ignited by the flame of the associated pilot nozzle which will simultaneously ignite the gas mixture flowing through passage64 and slot 66 there '4? by causing ignition of the gas coming from the burner.
Obviously, since the pilot flames are withinthe shields of the device, the objectionable center hot spot on the range is removed.
Obviously, some modifications of the details herein shown and described may be made without departing from the scope of my invention: or the scope of the appended claims; and, it is the wish, therefore, not to be limited to the detail emlfiodi'ment: herein shown and described.
" What is claimed'is:
1'. A pilot burner device including a substantially horizontally disposed shield means defining a closed upper surfaceand a pair of depending side walls defining a cavity, a substantially horizontally disposed tubular body part extending into said cavity, said tubular body part having a closed end portion, a tubular nozzle projecting forwardly of said closed end portion and extending through said closed end portion and being in communication with the: interior of said" body part; said nozzle beingof elongated configuration and having a Wall. of minutethickness, the length-of said nozzle being at least tentim'es as great as the inner diameter thereof whereby the pilot flame will burn at the extreme outer end of the nozzle, the inner diameter of said nozzle being many times less than the inner diameter of said body part, a plurality of arms extending from the outer end of" said body part adjacent said nozzle, said arms extending on opposite sides of said nozzle and projecting forwardly beyond the outer-end of the nozzle, said arms flaring out- Wardly in a forward direction, the free outer ends of said arms being. spaced from said shield whereby the end oi the nozzle is' effectively protected from accidental damage", a source of gas connected to said body part, and ignition port means in spaced relation with said nozzle; said ignition port means being provided with ports, means providing communication 'betweensaid ports and a source of'gas; atleast oneof said ports being disposed adjacent to and opening toward said shield means for directing a" stream of gas-within the cavity defined by said shield, said nozzle being disposed in substantially the same horizontal plane as said last mentioned port for insuring ignition:of a stream of gas; issuing: from said-port by the pilot flame: at the end portion of 'saidnozzle.
2. Apparatus as define-d in claim 1, including a gas burner, said i'gnition-por-t means being disposed adjacent to and below the top surface-of said burner, said ports including offset interconnected ports, one of said ports extending vertically for directing a stream of gas up Wardly: toward: said burner.
33. Apparatus asdefin'ed inclaim 1', wherein*saidnozzle is mounted: coaxial-lywith-said' body part, the inner diameter of said nozzle being approximately .023 inch, and said nozzle having a wall thickn'essof approximately .006 inch.
References-Cited'in-the file of this patent UNITED STATES" PATENTS 951,724 Cole a Mar. 8, 1910 1 ,321,280 Brennan etal.v Nov. 1-1, 1919 1,361,804 Adan-rs t.. 1 v Dec, 14,- 1 9 -20 1,482,258 Reed Jan; 29; 1924 1,823,621 Methudy Sept. 1-5, 1931 1,827,505 Bluhm Oct. 13, 1931 1,979,468 Janisch Nov. 6, 1934" 2,512,393 Strobelt .t a a; a June 20, 1950
Publications (1)
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US2881829A true US2881829A (en) | 1959-04-14 |
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Application Number | Title | Priority Date | Filing Date |
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US2881829D Expired - Lifetime US2881829A (en) | Pilot light burners |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2998058A (en) * | 1959-02-02 | 1961-08-29 | Aurora Corp | Gas range pilot light system |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US951724A (en) * | 1907-05-10 | 1910-03-08 | Dwight S Cole | Igniting apparatus. |
US1321280A (en) * | 1919-11-11 | Igniter-torch | ||
US1361804A (en) * | 1920-12-14 | Julius rebdhtand adams | ||
US1482258A (en) * | 1922-04-01 | 1924-01-29 | Semet Solvay Co | Gas burner |
US1823621A (en) * | 1929-11-11 | 1931-09-15 | Methudy Automatic Lighter Co | Ignition device for gas burners |
US1827505A (en) * | 1928-06-25 | 1931-10-13 | William C Kleiner | Gas burner |
US1979468A (en) * | 1931-02-24 | 1934-11-06 | Bride Janisch | Device for relighting gas ranges |
US2512393A (en) * | 1944-11-29 | 1950-06-20 | Robertshaw Fulton Controls Co | Flash tube igniting device for gaseous fuel burners |
-
0
- US US2881829D patent/US2881829A/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1321280A (en) * | 1919-11-11 | Igniter-torch | ||
US1361804A (en) * | 1920-12-14 | Julius rebdhtand adams | ||
US951724A (en) * | 1907-05-10 | 1910-03-08 | Dwight S Cole | Igniting apparatus. |
US1482258A (en) * | 1922-04-01 | 1924-01-29 | Semet Solvay Co | Gas burner |
US1827505A (en) * | 1928-06-25 | 1931-10-13 | William C Kleiner | Gas burner |
US1823621A (en) * | 1929-11-11 | 1931-09-15 | Methudy Automatic Lighter Co | Ignition device for gas burners |
US1979468A (en) * | 1931-02-24 | 1934-11-06 | Bride Janisch | Device for relighting gas ranges |
US2512393A (en) * | 1944-11-29 | 1950-06-20 | Robertshaw Fulton Controls Co | Flash tube igniting device for gaseous fuel burners |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2998058A (en) * | 1959-02-02 | 1961-08-29 | Aurora Corp | Gas range pilot light system |
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