Patent US1782812A successfully refreshed from Google Patents.
Patent US3221126A successfully refreshed from Google Patents.
US3221126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermally controlled electrical switch having motion-amplifying lever means
Assignee: Fratelli Borletti SpA
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Filing: 1963-05-09
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Granted: 1965-11-30
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Expires: 1983-05-09
Abstract
No abstract record available.
Inventors
- 👤 Moro Antonio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:44
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/52; H01H37/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A THERMALLY CONTROLLED ELECTRICAL SWITCH COMPRISING AN ELONGATED METAL HOUSING, A BI-METAL ELEMENT OF CURVED CONFIGURATION ADAPTED TO REVERSE ITS CURVATURE IN RESPONSE TO PREDETERMINED VARIATIONS IN THE AMBIENT TEMPERATURE, MEANS MOUNTING SAID ELEMENT AT ONE END OF SAID HOUSING, A LEVER DISPOSED WITHIN THE HOUSING AND SPACED FROM SAID ELEMENT AND COMPRISING A FIRST ARM EXTENDING LONGITUDINALLY OF SAID HOUSING AWAY FROM THE ELEMENT AND A SECOND ARM INTEGRAL WITH THE FIRST ARM AND EXTENDING GENERALLY PARALLEL TO SAID ELEMENT AND SUBJECT TO THE CURVATURE REVERSAL MOVEMENTS THEREOF, MEANS SUPPORTING SAID LEVER FOR PIVOTAL MOVEMENT RELATIVE TO THE HOUSING IN RESPONSE TO SAID CURVATURE REVERSAL MOVEMENTS COMPRISING A FIRST RING CLAMPED BETWEEN A STEP FORMED WITHIN SAID HOUSING AND SPACED FROM SAID ELEMENT AND A FURTHER RING FIXED IN POSITION BY UPSETTING PART OF SAID HOUSING ON THE INTERNAL SIDE
Claim 2
Dependent Claim
141 words
A THERMALLY CONTROLLED ELECTRICAL SWITCH COMPRISING AN ELONGATED METAL HOUSING, A BI-METAL ELEMENT OF CURVED CONFIGURATION ADAPTED TO REVERSE ITS CURVATURE IN RESPONSE TO PREDETERMINED VARIATIONS IN THE AMBIENT TEMPERATURE, MEANS MOUNTING SAID ELEMENT AT ONE END OF SAID HOUSING, A LEVER DISPOSED WITHIN THE HOUSING AND SPACED FROM SAID ELEMENT AND COMPRISING A FIRST ARM EXTENDING LONGITUDINALLY OF SAID HOUSING AWAY FROM THE ELEMENT AND A SECOND ARM INTEGRAL WITH THE FIRST ARM AND EXTENDING GENERALLY PARALLEL TO SAID ELEMENT AND SUBJECT TO THE CURVATURE REVERSAL MOVEMENTS THEREOF, MEANS SUPPORTING SAID LEVER FOR PIVOTAL MOVEMENT RELATIVE TO THE HOUSING IN RESPONSE TO SAID CURVATURE REVERSAL MOVEMENTS COMPRISING A FIRST RING CLAMPED BETWEEN A STEP FORMED WITHIN SAID HOUSING AND SPACED FROM SAID ELEMENT AND A FURTHER RING FIXED IN POSITION BY UPSETTING PART OF SAID HOUSING ON THE INTERNAL SIDE
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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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |