US3407663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double action thermostat
Assignee: Antioch College
•
Filing: 1963-06-14
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Granted: 1968-10-29
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Expires: 1983-06-14
Abstract
No abstract record available.
Inventors
- 👤 Vernet Sergius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:19
CPC Classifications
G; G01; G01K; G01K5/00; G01K5/32; G01K5/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A DOUBLE-ACTION THERMOSTAT HAVING A HOUSING CONTAINING A THERMAL EXPANSIBLE MATERIAL OPERATIVELY CONNECTED TO A POWER MEMBER WHEREIN EXPANSION OF SAID EXPANSIBLE MATERIAL EXERTS A PRESSURE TO MOVE THE CASING AND POWER MEMBER RELATIVE TO EACH OTHER, COMPRISING: A FIRST PISTON, A POWER MEMBER PISTON AFFIXED TO SAID POWER MEMBER, A RESILIENT DEFORMABLE RUBBER DIAPHRAGM MOUNTED TO SAID HOUSING SEALINGLY SEPARATING THE POWER MEMBER PISTON AND FIRST PISTON FROM THE EXPANSIBLE MATERIAL, ONE FACE OF SAID DIAPHRAGM CONTACTING THE EXPANSIBLE MATERIAL, A DEFORMABLE RUBBER PLUG HAVING ONE SIDE THEREOF CONTACTING THE OUTER FACE OF SAID DIAPRAGM AND THE OTHER SIDE CONTACTING SAID FIRST PISTON AND SAID POWER MEMBER PISTON,
Claim 2
Dependent Claim
109 words
A DOUBLE-ACTION THERMOSTAT HAVING A HOUSING CONTAINING A THERMAL EXPANSIBLE MATERIAL OPERATIVELY CONNECTED TO A POWER MEMBER WHEREIN EXPANSION OF SAID EXPANSIBLE MATERIAL EXERTS A PRESSURE TO MOVE THE CASING AND POWER MEMBER RELATIVE TO EACH OTHER, COMPRISING: A FIRST PISTON, A POWER MEMBER PISTON AFFIXED TO SAID POWER MEMBER, A RESILIENT DEFORMABLE RUBBER DIAPHRAGM MOUNTED TO SAID HOUSING SEALINGLY SEPARATING THE POWER MEMBER PISTON AND FIRST PISTON FROM THE EXPANSIBLE MATERIAL, ONE FACE OF SAID DIAPHRAGM CONTACTING THE EXPANSIBLE MATERIAL, A DEFORMABLE RUBBER PLUG HAVING ONE SIDE THEREOF CONTACTING THE OUTER FACE OF SAID DIAPRAGM AND THE OTHER SIDE CONTACTING SAID FIRST PISTON AND SAID POWER MEMBER PISTON,
References Cited (Backward Citations)
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US2873609A
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US2986936A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |