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US3089933A Expired / Lapsed US ⏱️ 0.0 years remaining

Multiple circuit breaker

Assignee: ZINSCO ELECTRICAL PRODUCTS
•
Filing: 1960-04-25
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Granted: 1963-05-14
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Expires: 1980-04-25
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Abstract

No abstract record available.

Inventors

  • 👤 Ross E Locher

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 23:21
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/1009; H01H71/1027

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 186 words
IN A CIRCUIT BREAKER SWITCH HAVING A MANUALLY ACTUATED OFF-ON SWITCH MECHANISM AND AN AUTOMATIC CIRCUIT BREAKING MECHANISM MOUNTED IN A CASE, THE AUTOMATIC CIRCUIT BREAKING MECHANISM INCLUDING A LATCH MOVABLE BETWEEN A NEUTRAL POSITION AND A CURCUIT INTERRUPTED POSITION AND A TRIGGER ARM RELEASED BY THE LATCH WHEN IN THE CIRCUIT INTERRUPTED POSITION TO AUTOMATICALLY INTERRUPT THE ELECTRICAL CIRCUIT, THE COMBINATION OF: A LATCH RELEASE MEMBER ENGAGEABLE WITH SAID LATCH TO HOLD SAID LATCH IN A NEUTRAL POSITION, WITH SAID LATCH RELEASE MEMBER BIASED INTO ENGAGEMENT WITH SAID LATCH; A THERMAL TRIP MEMBER ENGAGEABLE WITH SAID LATCH RELEASE MEMBER TO MOVE SAID LATCH RELEASE MEMBER OUT OF ENGAGEMANT WITH SAID LATCH; MEANS FOR MOUNTING A PAIR OF THE SWITCHES SIDE-BY-SIDE; AND A U-SHAPED LINK, WITH THE BIGHT OF THE U PIVOTALLY MOUNTED IN THE SIDE-BY-SIDE SWITCHES FOR ENGAGEMENT OF AN ARM OF THE U WITH EACH LATCH WHEN THE CIRCUIT INTERRUPTED POSITION TO MOVE THE ARMS INTO ENGAGEMENT WITH THE RESPECTIVE LATCH RELEASE MEMERS AND MOVE THE LATCH RELEASE MEMBERS OUT OF ENGAGEMENT WITH THE CORRESPONDING LATCHES AND RELEASE THE TRIGGER ARM OF EACH SWITCH.

References Cited (Backward Citations)

US2520537A Cited
US2779831A Cited
US2934624A Cited
US2944128A Cited
US2887548A Cited
US2875289A Cited
US2878332A Cited
US2956133A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-05-13 1966-11-12 1967-05-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-05-13 1970-11-12 1971-05-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-05-13 1974-11-12 1975-05-14 $7700.00 Window Closed / Lapsed

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