US3196753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cushion control and surge relief
Assignee: Tomkins Johnson Co
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Filing: 1963-05-21
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Granted: 1965-07-27
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Expires: 1983-05-21
Abstract
No abstract record available.
Inventors
- 👤 Raymond H Maurer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:29
CPC Classifications
F; F03; F03C; F03C1/00; F03C1/08; F03C1/16; F15; F15B; F15B15/00; F15B15/20; F15B15/22; F15B15/223
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN AN EXPANSIBLE CHAMBER MOTOR INCLUDING A CYLINDER HAVING A HEAD ENCLOSING AN END THEREOF, A PISTON SLIDEABLY AND OPERABLE LOCATED WITHIN SAID CYLINDER, A PORT DEFINED IN SAID HEAD NORMALLY DIRECTLY COMMUNICATING WITH THE INTERIOR OF SAID CYLINDER, COOPERABLE VALVE MEANS DEFINED ON SAID HEAD AND PISTON ADAPTED TO CLOSE SAID PORT FROM DIRECT COMMUNICATION WITH SAID CYLINDER A A PREDETERMINED POSITION OF SAID PISTON RELATIVE TO SAID HEAD, A BLEED PASSAGE DEFINED IN SAID HEAD COMMUNICATING WITH THE INTERIOR OF SAID CYLINDER ADJACENT SAID EAD AND SAID PORT, A REGULATING VALVE WITHIN SAID PASSAGE REGULATING THE FLOW THERETHROUGH, ANS SURGE RELIEF MEANS ASSOCIATED WITH SAID VALVE RESPONSIVE TO THE PRESSURE WITHIN SAID CYLINDER ADJACENT SAID HEAD ACTUATING SAID VALVE IN PROPORTION TO SAID PRESSURE.
Claim 2
Dependent Claim
126 words
IN AN EXPANSIBLE CHAMBER MOTOR INCLUDING A CYLINDER HAVING A HEAD ENCLOSING AN END THEREOF, A PISTON SLIDEABLY AND OPERABLE LOCATED WITHIN SAID CYLINDER, A PORT DEFINED IN SAID HEAD NORMALLY DIRECTLY COMMUNICATING WITH THE INTERIOR OF SAID CYLINDER, COOPERABLE VALVE MEANS DEFINED ON SAID HEAD AND PISTON ADAPTED TO CLOSE SAID PORT FROM DIRECT COMMUNICATION WITH SAID CYLINDER A A PREDETERMINED POSITION OF SAID PISTON RELATIVE TO SAID HEAD, A BLEED PASSAGE DEFINED IN SAID HEAD COMMUNICATING WITH THE INTERIOR OF SAID CYLINDER ADJACENT SAID EAD AND SAID PORT, A REGULATING VALVE WITHIN SAID PASSAGE REGULATING THE FLOW THERETHROUGH, ANS SURGE RELIEF MEANS ASSOCIATED WITH SAID VALVE RESPONSIVE TO THE PRESSURE WITHIN SAID CYLINDER ADJACENT SAID HEAD ACTUATING SAID VALVE IN PROPORTION TO SAID PRESSURE.
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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |