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US3172601A Expired / Lapsed US ⏱️ 0.0 years remaining

Combination diaphragm valve and pressure regulator control and system of control

Assignee: Robertshaw Controls Co
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Filing: 1961-10-26
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Granted: 1965-03-09
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Expires: 1981-10-26
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Abstract

No abstract record available.

Inventors

  • 👤 Caparone Michael John

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 13:54
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/10; F23N5/105; F23N1/00; F23N5/06; F23N5/067; F23N2225/00; F23N2225/08; F23N2227/00; F23N2227/22; F23N2227/26; F23N2235/00; F23N2235/12; F23N2235/18; F23N2235/20; F23N2235/24

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 296 words
IN COMBINATION: A MAIN GAS BURNER FOR HEATING A SPACE; A GAS FLOW CONTROLLING THERMOSTATIC VALVE MEANS OPENING AND CLOSING IN RESPONSE RESPECTIVELY TO FALL AND RISE IN TEMPERATURE IN SAID SPACE; A GAS SUPPLY MEANS; A REGULATOR CASING WITH A CASING INTAKE CONNECTED TO SAID GAS SUPPLY MEANS AND A CASING DISCHARGE CONNECTED TO SAID BURNER, SAID CASING HAVING A MAIN VALVE CONTROLLING THE MAIN FLOW OF GAS FROM SAID GAS SUPPLY MEANS TO SAID BURNER, AND HAVING A PRESSURE CHAMBER CONTROLLING THE OPENING AND CLOSING OF SAID MAIN VALVE; A STANDBY PILOT TO IGNITE SAID MAIN GAS BURNER; AN INTERMITTENT PILOT TO BE IGNITED BY SAID STANDBY PILOT; STANDLY PILOT GAS FEED MEANS FORMING A STANDBY GAS FLOW PATH CONNECTED TO SAID GAS SUPPLY MEANS AND FEEDING GAS TO SAID STANDBY PILOT; INTERMITTENT GAS FEED MEANS FORMING AN INTERMITTENT FEED GAS FLOW PATH AND INCLUDING AN INTERMITTENT PASSAGEWAY MEANS IN SAID CASING CONNECTED TO SAID CASING INTAKE AND PASSING THROUGH SAID CASING TO A DISCHARGE OPENING IN SAID CASING CONNECTED TO PIPE CONNECTIONS PASSING THROUGH SAID THERMOSTATIC VALVE MEANS AND FEEDING GAS TO SAID INTERMITTENT PILOT; A THERMOSTATIC BLEED CONTROL VALVE IN SAID CASING; MAIN VALVE CONTROL BLEED GAS FLOW MEANS IN SAID CASING FORMING A GAS FLOW BLEED PATH CONNECTED TO SAID CASING INTAKE, PASSING THROUGH A RESTRICTING ORIFICE INTO SAID PRESSURE CHAMBER, PASSING THROUGH SAID THERMOSTATIC BLEED CONTROL VALVE IN SAID CASING AND THROUGH A PASSAGEWAY IN SAID CASING EXTENDING FROM SAID BLEED CONTROL VALVE AND CONNECTED TO SAID CASING DISCHARGE TO SAID MAIN BURNER; AND AN INTERMITTENT PILOT THERMOSTATIC ELEMENT RESPONSIVE TO THE HEATING EFFECT OF SAID INTERMITTENT PILOT AND EFFECTIVELY UNRESPONSIVE TO THE HEATING EFFECT TO SAID STANDBY PILOT AND HAVING AN IMPULSE CONNECTION TO SAID THERMOSTATIC BLEED CONTROL VALVE.
Claim 2
Dependent Claim 296 words
IN COMBINATION: A MAIN GAS BURNER FOR HEATING A SPACE; A GAS FLOW CONTROLLING THERMOSTATIC VALVE MEANS OPENING AND CLOSING IN RESPONSE RESPECTIVELY TO FALL AND RISE IN TEMPERATURE IN SAID SPACE; A GAS SUPPLY MEANS; A REGULATOR CASING WITH A CASING INTAKE CONNECTED TO SAID GAS SUPPLY MEANS AND A CASING DISCHARGE CONNECTED TO SAID BURNER, SAID CASING HAVING A MAIN VALVE CONTROLLING THE MAIN FLOW OF GAS FROM SAID GAS SUPPLY MEANS TO SAID BURNER, AND HAVING A PRESSURE CHAMBER CONTROLLING THE OPENING AND CLOSING OF SAID MAIN VALVE; A STANDBY PILOT TO IGNITE SAID MAIN GAS BURNER; AN INTERMITTENT PILOT TO BE IGNITED BY SAID STANDBY PILOT; STANDLY PILOT GAS FEED MEANS FORMING A STANDBY GAS FLOW PATH CONNECTED TO SAID GAS SUPPLY MEANS AND FEEDING GAS TO SAID STANDBY PILOT; INTERMITTENT GAS FEED MEANS FORMING AN INTERMITTENT FEED GAS FLOW PATH AND INCLUDING AN INTERMITTENT PASSAGEWAY MEANS IN SAID CASING CONNECTED TO SAID CASING INTAKE AND PASSING THROUGH SAID CASING TO A DISCHARGE OPENING IN SAID CASING CONNECTED TO PIPE CONNECTIONS PASSING THROUGH SAID THERMOSTATIC VALVE MEANS AND FEEDING GAS TO SAID INTERMITTENT PILOT; A THERMOSTATIC BLEED CONTROL VALVE IN SAID CASING; MAIN VALVE CONTROL BLEED GAS FLOW MEANS IN SAID CASING FORMING A GAS FLOW BLEED PATH CONNECTED TO SAID CASING INTAKE, PASSING THROUGH A RESTRICTING ORIFICE INTO SAID PRESSURE CHAMBER, PASSING THROUGH SAID THERMOSTATIC BLEED CONTROL VALVE IN SAID CASING AND THROUGH A PASSAGEWAY IN SAID CASING EXTENDING FROM SAID BLEED CONTROL VALVE AND CONNECTED TO SAID CASING DISCHARGE TO SAID MAIN BURNER; AND AN INTERMITTENT PILOT THERMOSTATIC ELEMENT RESPONSIVE TO THE HEATING EFFECT OF SAID INTERMITTENT PILOT AND EFFECTIVELY UNRESPONSIVE TO THE HEATING EFFECT TO SAID STANDBY PILOT AND HAVING AN IMPULSE CONNECTION TO SAID THERMOSTATIC BLEED CONTROL VALVE.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-03-08 1968-09-07 1969-03-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-03-08 1972-09-07 1973-03-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-03-08 1976-09-07 1977-03-09 $7700.00 Window Closed / Lapsed

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