US3089933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple circuit breaker
Assignee: ZINSCO ELECTRICAL PRODUCTS
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Filing: 1960-04-25
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Granted: 1963-05-14
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Expires: 1980-04-25
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.
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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) | 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 |