US3283099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat responsive snap acting switch
Assignee: Robertshaw US Holding Corp
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Filing: 1965-01-15
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Granted: 1966-11-01
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Expires: 1985-01-15
Abstract
No abstract record available.
Inventors
- 👤 Liebermann John
- 👤 Donald L Coning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:21
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/26; H01H35/2607; H01H35/2614
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A PRESSURE RESPONSIVE CONTROL DEVICE COMPRISING: (A) A HOUSING; (B) AN ELECTRIC SWITCH IN SAID HOUSING INCLUDING A MOVABLE ACTUATING MEMBER; (C) A VAPOR FILLED EXPANSIBLE POWER ELEMENT; (D) MEANS INTERCONNECTING SAID POWER ELEMENT AND SAID SWITCH ACTUATOR COMPRISING A GENERALLY FLAT SPRING STRIP HAVING ONE END SUPPORTED BY SAID HOUSING AT ONE END OF SAID HOUSING AND ADJACENT TO SAID POWER ELEMENT AND THE INTERMEDIATE PORTION THEREOF ENGAGEING SAID ACTUATOR, THE OTHER END OF SAID SPRING HAVING A REVERSELY CURVED PORTION ADJACENT THE END OF SAID HOUSING OPPOSITE SAID ONE END THEREOF; (E) A LEVER PIVOTED TO AN INTERMEDIATE PORTION OF SAID HOUSING AND HAVING A SWINGABLE END EXTENDING ADJACENT TO SAID REVERSELY CURVED END OF SAID SPRING; (F) A THRUST MEMBER CARRIED BY SAID SWINGABLE END OF SAID LEVER AND ENGAGING THE REVERSED PORTION OF SAID SPRING; (G) AN ARM CONNECTED TO SAID LEVER; AND (H) MANUALLY OPERABLE MEANS ROTATABLY SUPPORTED BY SAID HOUSING AND ENGAGING SAID ARM FOR SWINGING SAID ARM TO SHIFT SAID SPRING.
Claim 2
Dependent Claim
168 words
A PRESSURE RESPONSIVE CONTROL DEVICE COMPRISING: (A) A HOUSING; (B) AN ELECTRIC SWITCH IN SAID HOUSING INCLUDING A MOVABLE ACTUATING MEMBER; (C) A VAPOR FILLED EXPANSIBLE POWER ELEMENT; (D) MEANS INTERCONNECTING SAID POWER ELEMENT AND SAID SWITCH ACTUATOR COMPRISING A GENERALLY FLAT SPRING STRIP HAVING ONE END SUPPORTED BY SAID HOUSING AT ONE END OF SAID HOUSING AND ADJACENT TO SAID POWER ELEMENT AND THE INTERMEDIATE PORTION THEREOF ENGAGEING SAID ACTUATOR, THE OTHER END OF SAID SPRING HAVING A REVERSELY CURVED PORTION ADJACENT THE END OF SAID HOUSING OPPOSITE SAID ONE END THEREOF; (E) A LEVER PIVOTED TO AN INTERMEDIATE PORTION OF SAID HOUSING AND HAVING A SWINGABLE END EXTENDING ADJACENT TO SAID REVERSELY CURVED END OF SAID SPRING; (F) A THRUST MEMBER CARRIED BY SAID SWINGABLE END OF SAID LEVER AND ENGAGING THE REVERSED PORTION OF SAID SPRING; (G) AN ARM CONNECTED TO SAID LEVER; AND (H) MANUALLY OPERABLE MEANS ROTATABLY SUPPORTED BY SAID HOUSING AND ENGAGING SAID ARM FOR SWINGING SAID ARM TO SHIFT SAID SPRING.
References Cited (Backward Citations)
US3096420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |