US3260055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic thermal switch
Assignee: Individual
•
Filing: 1965-05-04
•
Granted: 1966-07-12
•
Expires: 1985-05-04
Abstract
No abstract record available.
Inventors
- 👤 James E Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:57
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/02; F17C13/026; F17C2221/00; F17C2221/01; F17C2221/012; F17C2221/016; F17C2221/017; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2227/00; F17C2227/03; F17C2227/0337; F17C2227/0358; F17C2227/036; F17C2250/00; F17C2250/04; F17C2250/0404; F17C2250/043; F17C2250/0439; F17C2250/07; F17C2250/072; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
AN AUTOMATIC THERMAL SWITCH COMPRISING A HOUSING OF A MATERIAL HAVING THERMAL INSULATION PROPERTIES BELOW A PREDETERMINED TEMPERATURE, SAID HOUSING HAVING TWO OPPOSITE OPEN ENDS; A PAIR OF FLANGES FOR SEALING THE OPPOSITE ENDS OF SAID HOUSING; A FIRST PIPE COUPLED TO ONE OF SAID FLANGES DISPOSED WITHIN SAID HOUSING; A SECOND PIPE COUPLED TO THE OTHER FLANGE, SAID SECOND PIPE BEING COAXIALLY DISPOSED OVER SAID FIRST WITHOUT BEING IN CONTACT THEREWITH; A GAS HAVING A PREDETERMINED TEMPERATURE OF SOLIDIFICATION LOWER THAN SAID PREDETERMINED TEMPERATURE AT WHICH THE MATERIAL OF SAID HOUSING IS SUBSTANTIALLY A THERMAL INSULATOR, AND AT WHICH SAID PAIR OF FLANGES AND SAID FIRST AND SECOND PIPES ARE THERMAL CONDUCTORS, FOR
Claim 2
Dependent Claim
114 words
AN AUTOMATIC THERMAL SWITCH COMPRISING A HOUSING OF A MATERIAL HAVING THERMAL INSULATION PROPERTIES BELOW A PREDETERMINED TEMPERATURE, SAID HOUSING HAVING TWO OPPOSITE OPEN ENDS; A PAIR OF FLANGES FOR SEALING THE OPPOSITE ENDS OF SAID HOUSING; A FIRST PIPE COUPLED TO ONE OF SAID FLANGES DISPOSED WITHIN SAID HOUSING; A SECOND PIPE COUPLED TO THE OTHER FLANGE, SAID SECOND PIPE BEING COAXIALLY DISPOSED OVER SAID FIRST WITHOUT BEING IN CONTACT THEREWITH; A GAS HAVING A PREDETERMINED TEMPERATURE OF SOLIDIFICATION LOWER THAN SAID PREDETERMINED TEMPERATURE AT WHICH THE MATERIAL OF SAID HOUSING IS SUBSTANTIALLY A THERMAL INSULATOR, AND AT WHICH SAID PAIR OF FLANGES AND SAID FIRST AND SECOND PIPES ARE THERMAL CONDUCTORS, FOR
References Cited (Backward Citations)
US2010180A
Cited
US2853279A
Cited
US3004394A
Cited
US2966035A
Cited
US3112651A
Cited
US3209818A
Cited
US3128605A
Cited
US3222877A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |