Patent US3321597A successfully refreshed from Google Patents.
US3321597A
Expired / Lapsed
US
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Circuit breaker having a thermoresponsive element with two leg portions and reset button for camming said leg portions
Assignee: Texas Instruments Inc
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Filing: 1965-07-19
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Granted: 1967-05-23
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Expires: 1985-07-19
Abstract
No abstract record available.
Inventors
- 👤 Meijer Gerhardus Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:51
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/04; H01H73/00; H01H73/22; H01H73/30; H01H73/303; H01H77/00; H01H77/02; H01H77/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
AN ELECTRIC SWITCH COMPRISING: (A) AN ELECTRICAL INSULATING SUPPORT; (B) AN ELECTRICALLY CONDUCTIVE THERMORESPONSIVE ELEMENT HAVING TWO LEG PORTIONS; (C) A BRACKET MOUNTING SAID ELEMENT ON SAID SUPPORT AND ADAPTED TO SQUEEZE SAID LEG PORTIONS TOWARD ONE ANOTHER FORMING A SNAP ACTING ELEMENT SNAPABLE FROM ONE POSITION TO A SECOND POSITION; (D) A FIXED CONTACT MOUNTED ON SAID SUPPORT; (E) A CONTACT MOUNTED ON SAID ELEMENT REMOTE FROM SAID BRACKET AND MOVABLE INTO ENGAGEMENT WITH SAID FIXED CONTACT WHEN SAID ELEMENT IS IN SAID FIRST POSITION AND OUT OF ENGAGEMENT WITH SAID FIXED CONTACT WHEN SAID SECOND ELEMENT IS IN SAID SECOND POSITION WHEREBY AN ELECTRICAL CIRCUIT CAN BE CLOSED OR OPENED; (F) A RESET BUTTON EXTENDING THROUGH A PORTION OF SAID SUPPORT AND HAVING A CAM SURFACE, SAID BUTTON SLIDABLE ON SAID SUPPORT BETWEEN AN INACTIVE POSITION AND A RESET POSITION WHERE SAID CAM SURFACE CONTACTS AND CAMS SAID LEG PORTIONS WHEN SAID ELEMENT IS IN SAID SECOND POSITION; AND (G) BIASING MEANS URGING SAID BUTTON TOWARD SAID INACTIVE POSITION.
Claim 2
Dependent Claim
171 words
AN ELECTRIC SWITCH COMPRISING: (A) AN ELECTRICAL INSULATING SUPPORT; (B) AN ELECTRICALLY CONDUCTIVE THERMORESPONSIVE ELEMENT HAVING TWO LEG PORTIONS; (C) A BRACKET MOUNTING SAID ELEMENT ON SAID SUPPORT AND ADAPTED TO SQUEEZE SAID LEG PORTIONS TOWARD ONE ANOTHER FORMING A SNAP ACTING ELEMENT SNAPABLE FROM ONE POSITION TO A SECOND POSITION; (D) A FIXED CONTACT MOUNTED ON SAID SUPPORT; (E) A CONTACT MOUNTED ON SAID ELEMENT REMOTE FROM SAID BRACKET AND MOVABLE INTO ENGAGEMENT WITH SAID FIXED CONTACT WHEN SAID ELEMENT IS IN SAID FIRST POSITION AND OUT OF ENGAGEMENT WITH SAID FIXED CONTACT WHEN SAID SECOND ELEMENT IS IN SAID SECOND POSITION WHEREBY AN ELECTRICAL CIRCUIT CAN BE CLOSED OR OPENED; (F) A RESET BUTTON EXTENDING THROUGH A PORTION OF SAID SUPPORT AND HAVING A CAM SURFACE, SAID BUTTON SLIDABLE ON SAID SUPPORT BETWEEN AN INACTIVE POSITION AND A RESET POSITION WHERE SAID CAM SURFACE CONTACTS AND CAMS SAID LEG PORTIONS WHEN SAID ELEMENT IS IN SAID SECOND POSITION; AND (G) BIASING MEANS URGING SAID BUTTON TOWARD SAID INACTIVE POSITION.
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) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |