Patent US3171931A successfully refreshed from Google Patents.
US3171931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple electric circuit breaker with common trip bar
Assignee: General Electric Co
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Filing: 1963-03-28
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Granted: 1965-03-02
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Expires: 1983-03-28
Abstract
No abstract record available.
Inventors
- 👤 David B Powell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:01
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/1009; H01H71/1027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A MULTIPOLE CIRCUIT BREAKER COMPRISING AN ELONGATED FLAT CASING OF RELATIVELY NARROW DIMENSION, A PAIR OF INDIVIDUAL CIRCUIT BREAKER MECHANISM MOUNTED WITHIN SAID CASING IN END-TO-END SUBSTANTIALLY CO-PLANAR RELATION AND EACH COMPRISING A PAIR OF SEPARABLE CONTACTS INCLUDING A FLAT BLADE-LIKE MOVABLE CONTACT ARM BIASED TO CIRCUIT OPENING POSITION, EACH SAID CIRCUIT BREAKER MECHANISM INCLUDING ALSO A MOVABLE MOUNTED FLAP TRIP MEMBER HAVING AN APERTURE THEREIN AND A CAM SURFACE ON ONE EDGE THEREOF, SEPARATE LATCH MEANS RESTRAINING SAID TRIP MEMBERS AGAINST CIRCUIT-OPENING MOVEMENT AND RESPONSIVE RESPECTIVELY TO EXCESSIVE CURRENT THROUGH THE ASSOCIATED CONTACT TO RELEASE SAID TRIP MEMBERS, SEPARATE MANUALLY OPERABLE WEDGE MEANS MOVABLE BETWEEN EACH SAID CONTACT ARM AND THE ASSOCIATED CAM SURFACE FOR MANUALLY
Claim 2
Dependent Claim
117 words
A MULTIPOLE CIRCUIT BREAKER COMPRISING AN ELONGATED FLAT CASING OF RELATIVELY NARROW DIMENSION, A PAIR OF INDIVIDUAL CIRCUIT BREAKER MECHANISM MOUNTED WITHIN SAID CASING IN END-TO-END SUBSTANTIALLY CO-PLANAR RELATION AND EACH COMPRISING A PAIR OF SEPARABLE CONTACTS INCLUDING A FLAT BLADE-LIKE MOVABLE CONTACT ARM BIASED TO CIRCUIT OPENING POSITION, EACH SAID CIRCUIT BREAKER MECHANISM INCLUDING ALSO A MOVABLE MOUNTED FLAP TRIP MEMBER HAVING AN APERTURE THEREIN AND A CAM SURFACE ON ONE EDGE THEREOF, SEPARATE LATCH MEANS RESTRAINING SAID TRIP MEMBERS AGAINST CIRCUIT-OPENING MOVEMENT AND RESPONSIVE RESPECTIVELY TO EXCESSIVE CURRENT THROUGH THE ASSOCIATED CONTACT TO RELEASE SAID TRIP MEMBERS, SEPARATE MANUALLY OPERABLE WEDGE MEANS MOVABLE BETWEEN EACH SAID CONTACT ARM AND THE ASSOCIATED CAM SURFACE FOR MANUALLY
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) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |