US3263731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control apparatus for combustion equipment
Assignee: Midland Ross Corp
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Filing: 1965-06-14
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Granted: 1966-08-02
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Expires: 1985-06-14
Abstract
No abstract record available.
Inventors
- 👤 Hanna Ralph
- 👤 James A Huber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:04
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/20; F23N5/203; F23N5/02; F23N5/08; F23N5/082; F23N5/12; F23N5/123; F23N2227/00; F23N2227/04; F23N2229/00; F23N2229/12; F23N2231/00; F23N2231/04; F23N2231/10; F23N2231/20; F23N2231/22; F23N2233/00; F23N2233/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
CONTROL APPARATUS FOR COMBUSTION EQUIPMENT OR THE LIKE COMPRISING MAIN VALVE MEANS FOR CONTROLLING FUEL FLOW TO A COMBUSTION CHAMBER; MEANS FOR RESTRAINING THE OPENING OF SAID MAIN VALVE MEANS; MEANS RESPONSIVE TO A FLAME IN SAID COMBUSTION CHAMBER FOR PRODUCE A SIGNAL TO DISABLE SAID RESTRAINING MEANS WHEN A FLAME IS PRESENT AND FOR CLOSING SAID MAIN VALVE MEANS WHEN A FLAME IS ABSENT; STARTING SEQUENCE MEANS INCLUDING SWITCHING MEANS AND IGNITION MEANS; SAID SWITCHING MEANS BEING OPERABLE TO CONNECT A POWER SUPPLY MEANS TO SAID IGNITION MEANS
Claim 2
Dependent Claim
89 words
CONTROL APPARATUS FOR COMBUSTION EQUIPMENT OR THE LIKE COMPRISING MAIN VALVE MEANS FOR CONTROLLING FUEL FLOW TO A COMBUSTION CHAMBER; MEANS FOR RESTRAINING THE OPENING OF SAID MAIN VALVE MEANS; MEANS RESPONSIVE TO A FLAME IN SAID COMBUSTION CHAMBER FOR PRODUCE A SIGNAL TO DISABLE SAID RESTRAINING MEANS WHEN A FLAME IS PRESENT AND FOR CLOSING SAID MAIN VALVE MEANS WHEN A FLAME IS ABSENT; STARTING SEQUENCE MEANS INCLUDING SWITCHING MEANS AND IGNITION MEANS; SAID SWITCHING MEANS BEING OPERABLE TO CONNECT A POWER SUPPLY MEANS TO SAID IGNITION MEANS
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |