US2594430A - Safety cutoff system for gas - Google Patents
Safety cutoff system for gas Download PDFInfo
- Publication number
- US2594430A US2594430A US2594430DA US2594430A US 2594430 A US2594430 A US 2594430A US 2594430D A US2594430D A US 2594430DA US 2594430 A US2594430 A US 2594430A
- Authority
- US
- United States
- Prior art keywords
- gas
- valve
- burner
- pressure
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000012528 membrane Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 230000000994 depressed Effects 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
- F23N2235/20—Membrane valves
Definitions
- the present invention concerns a burner for a mixture of gas and compressed air by which the flow of the gas is automatically controlled by the flow or the air.
- the drawing shows the parts in operating positions.
- the compressed air for a gas burner G is supplied to a gas valve A which is closed by the pressure of the gas.
- a compressed air pipe C from a fan V to the gas burner G has a branch pipe S, with a bleed opening S, to the valve A which has a membrane A which is depressed by the air pressure so that the valve A is opened and the gas in a pipe line R1 can flow to burner G since the pressure of the air is made to exceed the pressure or the gas.
- valve 13 which, when its thermostatic element F is expanded by heat oi flame D, keeps the valve B open.
- the element F contracts because the pilot flame D for some reason has been extinguished the valve B is closed by its spring B-l thus shutting oil the compressed air from the valve A.
- a conduit adapted to lead to a burner for supplying gas under super-atmospheric pressure; a valve in said conduit; means including a flexible membrane subjected on one side to said gas pressure in said conduit and on which said valve is mounted; means forming a chamber sealed from said conduit by said membrane; a second conduit leading to said chamber; means for supplying air under pressure superior to said gas pressure to the burner foricombustion, means for diverting a portion of said air to said second conduit to flex said membrane to open said valve; a second valve in said second conduit biased to close said second conduit; means to supply a pilot flame for the burner; and a thermostatic element coacting with said second biased valve and disposed adjacent said flame-supplying means, expansible by heat from said flame to open said second biased valve.
Description
April 29, 1952 ANsEN 2,594,430 GAS BURNERS RESPONSIVE TO AIR PRESSURE AND THERMOSTATIC CONTROL Filed Dec. 7, 194a G. V. H SAFETY CUTOFF SYSTEM FOR Y Z, y I
Attorney ven'ror:
Patented Apr. 29, 1952 OFFICE SAFETY CUTOFF SYSTEM FOR GAS BURNERS RESPONSIVE TO AIR jPRES- SURE AND THERMOSTATIC CONTROL Hans Gunner Viggo Hansen, Copenhagen.
Denmark Application December 7, 1946, Serial No.714,869 In Denmark June 15, 1946 1 Claim.
The present invention concerns a burner for a mixture of gas and compressed air by which the flow of the gas is automatically controlled by the flow or the air.
The drawing shows the parts in operating positions.
The compressed air for a gas burner G is supplied to a gas valve A which is closed by the pressure of the gas. A compressed air pipe C from a fan V to the gas burner G has a branch pipe S, with a bleed opening S, to the valve A which has a membrane A which is depressed by the air pressure so that the valve A is opened and the gas in a pipe line R1 can flow to burner G since the pressure of the air is made to exceed the pressure or the gas.
From this it will be seen that in case the compressed air iails no gas will be admitted to the burner G.
When compressed air and gas are admitted to the burner G the mixture should be ignited at once by the burning pilot flame D which is supplied with gas independent of the valve A through a pipe line R2.
To eiIect this result there is inserted in pipe S a valve 13 which, when its thermostatic element F is expanded by heat oi flame D, keeps the valve B open. When the element F contracts because the pilot flame D for some reason has been extinguished the valve B is closed by its spring B-l thus shutting oil the compressed air from the valve A.
In this way no gas will be admitted to the gas burner G if the pilot flame D is not burning.
Manually operated cut-off valves H1 and H2 are fitted to the pipe lines R1 and R2 to control operation.
I claim:
In a device for controlling the supply 01' combustible gas to a burner by thermostaticallycontrolled air pressure, the combination of a conduit adapted to lead to a burner for supplying gas under super-atmospheric pressure; a valve in said conduit; means including a flexible membrane subjected on one side to said gas pressure in said conduit and on which said valve is mounted; means forming a chamber sealed from said conduit by said membrane; a second conduit leading to said chamber; means for supplying air under pressure superior to said gas pressure to the burner foricombustion, means for diverting a portion of said air to said second conduit to flex said membrane to open said valve; a second valve in said second conduit biased to close said second conduit; means to supply a pilot flame for the burner; and a thermostatic element coacting with said second biased valve and disposed adjacent said flame-supplying means, expansible by heat from said flame to open said second biased valve.
HANS GUNNER VIGGO HANSEN.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,856,408 Brear May 3, 1932 1,892,115 McKee Dec. 27, 1932 2,070,969 Carroll et a1. Feb. 16, 1937 2,147,568 Barber Feb. 14, 1939 2,263,896 Long Nov. 25, 1941 2,291,567 Wunsch et a1 July 28, 1942 2,335,471 Ashcraft Nov. 30, 1943 2,538,222 Wilson Jan. 16, 1951 FOREIGN PATENTS Number Country Date 463,150 Germany July 23, 1928 786,927 France June 24, 1935 628,621 Germany Apr. 8, 1938 448,534 Great Britain June 10, 1936
Publications (1)
Publication Number | Publication Date |
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US2594430A true US2594430A (en) | 1952-04-29 |
Family
ID=3438834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US2594430D Expired - Lifetime US2594430A (en) | Safety cutoff system for gas |
Country Status (1)
Country | Link |
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US (1) | US2594430A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4065250A (en) * | 1975-04-23 | 1977-12-27 | Norddeutsche Affinerie | Method of independently adjusting the fuel mixture composition and melting rate of multiburner shaft furnaces for melting metals |
US5989011A (en) * | 1997-07-18 | 1999-11-23 | Caruso; Pat | Burner control system |
US20190120497A1 (en) * | 2017-10-19 | 2019-04-25 | Haier Us Appliance Solutions, Inc. | Fuel supply system for a gas burner assembly |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB448534A (en) * | ||||
DE463150C (en) * | 1928-07-23 | Oskar Hoppe | Pressure regulator to keep the pressures equal in separate fuel gas and air lines | |
US1856408A (en) * | 1928-05-03 | 1932-05-03 | E S Hammond Inc | Automatic stop valve for oil burners |
US1892115A (en) * | 1929-08-24 | 1932-12-27 | Garnet W Mckee | Combustion system |
FR786927A (en) * | 1934-03-03 | 1935-09-14 | Bosch Robert | Device for adapting the fuel supply to the quantity of air required for the operation of a burner or a fireplace installation |
DE628621C (en) * | 1933-02-11 | 1936-04-08 | Junkers & Co | Device for automatic regulation of the gas supply to a heater |
US2070969A (en) * | 1932-05-10 | 1937-02-16 | A R Carroll | Gas burning apparatus |
US2147568A (en) * | 1937-04-03 | 1939-02-14 | Surface Combustion Corp | Gas shut-off means for mixing apparatus |
US2263896A (en) * | 1939-01-28 | 1941-11-25 | Herbert J Long | Control system for gas burners |
US2291567A (en) * | 1933-09-28 | 1942-07-28 | Junkers & Co | Thermoelectric control and safety shutoff device |
US2335471A (en) * | 1940-06-05 | 1943-11-30 | Honeywell Regulator Co | Fluid fuel burner control system |
US2538222A (en) * | 1945-05-04 | 1951-01-16 | Perfex Corp | Safety control gas burner system |
-
0
- US US2594430D patent/US2594430A/en not_active Expired - Lifetime
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB448534A (en) * | ||||
DE463150C (en) * | 1928-07-23 | Oskar Hoppe | Pressure regulator to keep the pressures equal in separate fuel gas and air lines | |
US1856408A (en) * | 1928-05-03 | 1932-05-03 | E S Hammond Inc | Automatic stop valve for oil burners |
US1892115A (en) * | 1929-08-24 | 1932-12-27 | Garnet W Mckee | Combustion system |
US2070969A (en) * | 1932-05-10 | 1937-02-16 | A R Carroll | Gas burning apparatus |
DE628621C (en) * | 1933-02-11 | 1936-04-08 | Junkers & Co | Device for automatic regulation of the gas supply to a heater |
US2291567A (en) * | 1933-09-28 | 1942-07-28 | Junkers & Co | Thermoelectric control and safety shutoff device |
FR786927A (en) * | 1934-03-03 | 1935-09-14 | Bosch Robert | Device for adapting the fuel supply to the quantity of air required for the operation of a burner or a fireplace installation |
US2147568A (en) * | 1937-04-03 | 1939-02-14 | Surface Combustion Corp | Gas shut-off means for mixing apparatus |
US2263896A (en) * | 1939-01-28 | 1941-11-25 | Herbert J Long | Control system for gas burners |
US2335471A (en) * | 1940-06-05 | 1943-11-30 | Honeywell Regulator Co | Fluid fuel burner control system |
US2538222A (en) * | 1945-05-04 | 1951-01-16 | Perfex Corp | Safety control gas burner system |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4065250A (en) * | 1975-04-23 | 1977-12-27 | Norddeutsche Affinerie | Method of independently adjusting the fuel mixture composition and melting rate of multiburner shaft furnaces for melting metals |
US5989011A (en) * | 1997-07-18 | 1999-11-23 | Caruso; Pat | Burner control system |
US20190120497A1 (en) * | 2017-10-19 | 2019-04-25 | Haier Us Appliance Solutions, Inc. | Fuel supply system for a gas burner assembly |
US10677469B2 (en) * | 2017-10-19 | 2020-06-09 | Haier Us Appliance Solutions, Inc. | Fuel supply system for a gas burner assembly |
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