US3277947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating apparatus control
Assignee: Carrier Corp
•
Filing: 1965-02-25
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Granted: 1966-10-11
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Expires: 1985-02-25
Abstract
No abstract record available.
Inventors
- 👤 Michael T Gacioch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:27
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN APPARATUS FOR HEATING WHICH INCLUDES A COMBUSTION CHAMBER CONNECTABLE WITH A SOURCE OF COMBUSTION AIR, A BURNER IN SAID CHAMBER ADAPTED TO COMMUNICATE WITH A SOURCE OF FUEL, AND A FLUE FOR CONVEYING PRODUCTS OF COMBUSTION INTO THE AMBIENT, THE COMBINATION OF MEANS FOR ACTUATING SAID BURNER UPON A DEMAND FOR HEAT; DIFFERENTIAL PRESSURE TYPE CONTROL MEANS HAVING COMMUNICATION WITH SAID COMBUSTION CHAMBER AND SAID FLUE, SAID CONTROL MEANS BEING ADAPTED, ON A PREDETERMINED DIFFERENCE IN PRESSURE BETWEEN SAID COMBUSTION CHAMBER AND SAID FLUE, TO OVERRIDE SAID BURNER ACTUATING MEANS AND RENDER SAID BURNER INOPERATIVE; MEANS FOR INCREASING THE PRESSURE DIFFERENCE ACROSS SAID CONTROL MEANS BEFORE STARTUP OF SAID BURNER; AND MEANS RESPONSIVE TO ACTUATION OF SAID BURNER TO RENDER SAID PRESSURE INCREASING MEANS INOPERATIVE.
Claim 2
Dependent Claim
126 words
IN APPARATUS FOR HEATING WHICH INCLUDES A COMBUSTION CHAMBER CONNECTABLE WITH A SOURCE OF COMBUSTION AIR, A BURNER IN SAID CHAMBER ADAPTED TO COMMUNICATE WITH A SOURCE OF FUEL, AND A FLUE FOR CONVEYING PRODUCTS OF COMBUSTION INTO THE AMBIENT, THE COMBINATION OF MEANS FOR ACTUATING SAID BURNER UPON A DEMAND FOR HEAT; DIFFERENTIAL PRESSURE TYPE CONTROL MEANS HAVING COMMUNICATION WITH SAID COMBUSTION CHAMBER AND SAID FLUE, SAID CONTROL MEANS BEING ADAPTED, ON A PREDETERMINED DIFFERENCE IN PRESSURE BETWEEN SAID COMBUSTION CHAMBER AND SAID FLUE, TO OVERRIDE SAID BURNER ACTUATING MEANS AND RENDER SAID BURNER INOPERATIVE; MEANS FOR INCREASING THE PRESSURE DIFFERENCE ACROSS SAID CONTROL MEANS BEFORE STARTUP OF SAID BURNER; AND MEANS RESPONSIVE TO ACTUATION OF SAID BURNER TO RENDER SAID PRESSURE INCREASING MEANS INOPERATIVE.
References Cited (Backward Citations)
US2169077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |