← Back to Patent Explorer
US3321597A Expired / Lapsed US ⏱️ 0.0 years remaining

Circuit breaker having a thermoresponsive element with two leg portions and reset button for camming said leg portions

Assignee: Texas Instruments Inc
•
Filing: 1965-07-19
•
Granted: 1967-05-23
•
Expires: 1985-07-19
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Meijer Gerhardus Jan

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 10:24
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)

US2824931A Cited
US3056002A Cited
US3196233A Cited
US3209104A Cited

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

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag