US3102937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc attenuator
Assignee: Murray Manufacturing Corp
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Filing: 1961-06-07
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Granted: 1963-09-03
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Expires: 1981-06-07
Abstract
No abstract record available.
Inventors
- 👤 Carl F Brunner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:03
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/30; H01H9/44; H01H9/446
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
A CIRCUIT BREAKER COMPRISING, IN COMBINATION, A CASE HAVING INTERNAL OPPOSING BARRIER WALLS DEFINING A PARTIALLY ENCLOSED CAVITY THEREIN AND HAVING A PASSAGE COMMUNICATING BETWEEN SAID CAVITY AND THE OUTSIDE OF THE CASE; SWITCH MEANS DISPOSED IN SAID CASE AND INCLUDING A FIXED CONTACT MOUNTED IN SAID CAVITY AND A MOVABLE CONTACT LOCATED IN SAID CAVITY AND CAPABLE OF LIMITED MOVEMENT BETWEEN OPENED AND CLOSED POSITIONS; MEANS MOUNTED IN SAID CASE AND RESPONSIVE TO OVERLOAD CONDITIONS FOR OPENING SAID SWITCH MEANS; A U-SHAPED MAGNETIC MEMBER SUPPORTED IN SAID CAVITY ADJACENT THE PATH OF MOVEMENT OF SAID MOVABLE CONTACT WITH THE SIDE ARMS THEREOF EMBRACING SAID PATH AND THE BASE THEREOF SPACED FROM SAID PATH ADJACENT ONE OF SAID BARRIER WALLS; AND, A SECOND MAGNETIC MEMBER SUPPORTED IN SAID CAVITY ADJACENT SAID PATH AND SPACED FROM SAID U-SHAPED MEMBER, SAID SECOND MEMBER HAVING A U-SHAPED PORTION WITH THE SIDE ARMS THEREOF DISPOSED IN OVERLAPPING, SPACED RELATIONSHIP TO THE OTHER OF SAID SIDE ARMS AND EMBRACING SAID PATH, AND THE BASE THEREOF DISPOSED SPACED FROM SAID PATH ADJACENT THE OTHER OF SAID BARRIER WALLS.
Claim 2
Dependent Claim
182 words
A CIRCUIT BREAKER COMPRISING, IN COMBINATION, A CASE HAVING INTERNAL OPPOSING BARRIER WALLS DEFINING A PARTIALLY ENCLOSED CAVITY THEREIN AND HAVING A PASSAGE COMMUNICATING BETWEEN SAID CAVITY AND THE OUTSIDE OF THE CASE; SWITCH MEANS DISPOSED IN SAID CASE AND INCLUDING A FIXED CONTACT MOUNTED IN SAID CAVITY AND A MOVABLE CONTACT LOCATED IN SAID CAVITY AND CAPABLE OF LIMITED MOVEMENT BETWEEN OPENED AND CLOSED POSITIONS; MEANS MOUNTED IN SAID CASE AND RESPONSIVE TO OVERLOAD CONDITIONS FOR OPENING SAID SWITCH MEANS; A U-SHAPED MAGNETIC MEMBER SUPPORTED IN SAID CAVITY ADJACENT THE PATH OF MOVEMENT OF SAID MOVABLE CONTACT WITH THE SIDE ARMS THEREOF EMBRACING SAID PATH AND THE BASE THEREOF SPACED FROM SAID PATH ADJACENT ONE OF SAID BARRIER WALLS; AND, A SECOND MAGNETIC MEMBER SUPPORTED IN SAID CAVITY ADJACENT SAID PATH AND SPACED FROM SAID U-SHAPED MEMBER, SAID SECOND MEMBER HAVING A U-SHAPED PORTION WITH THE SIDE ARMS THEREOF DISPOSED IN OVERLAPPING, SPACED RELATIONSHIP TO THE OTHER OF SAID SIDE ARMS AND EMBRACING SAID PATH, AND THE BASE THEREOF DISPOSED SPACED FROM SAID PATH ADJACENT THE OTHER OF SAID BARRIER WALLS.
References Cited (Backward Citations)
US2227134A
Cited
US2890306A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |