Patent US3177325A successfully refreshed from Google Patents.
US3177325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical and electrical pivot between removable arc chute and stationary contact structure
Assignee: ABB Inc USA
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Filing: 1960-12-21
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Granted: 1965-04-06
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Expires: 1980-12-21
Abstract
No abstract record available.
Inventors
- 👤 Frank J Pokorny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:39
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/30; H01H9/44; H01H9/34; H01H9/345
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN COMBINATION, A CIRCUIT BREAKER HAVING A PAIR OF COOPERATING CONTACTS, ONE OF SAID CONTACTS BEING STATIONARY, AND ARC CHUTE HAVING A PIVOT PIN AND BLOW-OUT COIL MEANS ELECTRICALLY CONNECTED TO SAID PIVOT PIN, CONDUCTIVE BRACKET MEANS BEING SLOTTED FOR RECEIVING SAID PIVOT PIN; MEANS INTEGRAL WITH SAID BRACKET MEANS FOR ELECTRICALLY CONNECTING SAID BRACKET MEANS TO SAID CIRCUIT BREAKER STATIONARY CONTACT; CONTACT FINGER MEANS POSITIONED WITHIN SAID BRACKET MEANS; CONDUCTIVE MEANS ELECTRICALLY CONNECTING SAID CONTACT FINGER MEANS TO SAID BRACKET MEANS; SAID CONTACT FINGER MEANS MAKING ELECTRICAL CONTACT WITH THE ARC CHUTE PIVOT PIN WHEN SAID PIVOT PIN IS SUPPORTED BY SAID SLOTTED BRACKET MEANS TO ESTABLISH A CONDUCTIVE PATH BETWEEN SAID STATIONARY CONTACT AND SAID BLOW-OUT COIL MEANS.
Claim 2
Dependent Claim
120 words
IN COMBINATION, A CIRCUIT BREAKER HAVING A PAIR OF COOPERATING CONTACTS, ONE OF SAID CONTACTS BEING STATIONARY, AND ARC CHUTE HAVING A PIVOT PIN AND BLOW-OUT COIL MEANS ELECTRICALLY CONNECTED TO SAID PIVOT PIN, CONDUCTIVE BRACKET MEANS BEING SLOTTED FOR RECEIVING SAID PIVOT PIN; MEANS INTEGRAL WITH SAID BRACKET MEANS FOR ELECTRICALLY CONNECTING SAID BRACKET MEANS TO SAID CIRCUIT BREAKER STATIONARY CONTACT; CONTACT FINGER MEANS POSITIONED WITHIN SAID BRACKET MEANS; CONDUCTIVE MEANS ELECTRICALLY CONNECTING SAID CONTACT FINGER MEANS TO SAID BRACKET MEANS; SAID CONTACT FINGER MEANS MAKING ELECTRICAL CONTACT WITH THE ARC CHUTE PIVOT PIN WHEN SAID PIVOT PIN IS SUPPORTED BY SAID SLOTTED BRACKET MEANS TO ESTABLISH A CONDUCTIVE PATH BETWEEN SAID STATIONARY CONTACT AND SAID BLOW-OUT COIL MEANS.
References Cited (Backward Citations)
US1155626A
Cited
US1811451A
Cited
US2761934A
Cited
US2875305A
Cited
FR1229805A
Cited
FR1229804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |