US3082306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermo-responsive switch
Assignee: Individual
•
Filing: 1961-05-05
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Granted: 1963-03-19
•
Expires: 1981-05-05
Abstract
No abstract record available.
Inventors
- 👤 John B Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:13
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/36
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
147 words
A THERMO-RESPONSIVE SWITCH COMPRISING AN ELONGATED CASE ADAPTED AT ONE END FOR MOUNTED ENGAGEMENT WITH AND THROUGH A WALL, A THERMAL ELEMENT INTERCHANGEABLY FIXED IN AND PROJECTING OUTWARDLY FROM SAID ONE END OF SAID CASE, SAID ELEMENT BEING ADAPTED TO EXPAND LONGITUDINALLY AND INWARDLY OF THE CASE IN REACTION TO TEMPERATURE INCREASE OF THE MEDIUM WHERETO IT IS EXPOSED, CONDUCTIVE MEANS THROUGH AND INSULATED FROM THE OTHER END OF SAID CASE CONNECTIBLE IN AN ELECTRICAL CIRCUIT THEREBY TERMINATED INTERIORLY OF THE CASE, A CENTRALLY-APERTURED BLOCK OF DIELECTRIC MATERIAL TRANSVERSE OF SAID CASE AND INWARDLY THEREOF FROM SAID MEANS, A CONTACT MEMBER INSULATED FROM AND SHIFTABLE LONGITUDINALLY OF THE CASE YIELDABLY AND CONDUCTIVELY BIASED AWAY FROM THE INWARD END OF SAID MEANS TO ENGAGE AND CLOSE OVER THE APERATURE OF SAID BLOCK, AND A STEM OF CONDUCTIVE MATERIAL ENDENTERED IN THE APERTURE OF SAID BLOCK AND YIELDABLY BIASED
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |