Patent US3071668A successfully refreshed from Google Patents.
US3071668A
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Circuit interrupters
Assignee: Westinghouse Electric Corp
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Filing: 1958-12-30
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Granted: 1963-01-01
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Expires: 1978-12-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Chester W Upton
- 👤 Earl F Beach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:32
CPC Classifications
H; H01; H01H; H01H75/00; H01H75/02; H01H75/04; H01H33/00; H01H33/02; H01H33/04; H01H33/12; H01H33/121; H01H33/125; H01H33/126; H01H33/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A CIRCUIT INTERRUPTER INCLUDING A TUBULAR INSULATING CASING, AN INSULATING ROD ROTATABLE WITHIN THE CASING AND CARRYING A PLURALITY OF SPACED MOVABLE BRIDGING CONTACTS THEREWITH, EACH MOVABLE BRIDGING CONTACT HAVING A PAIR OF RESILIENT END CONTACT FINGERS, A STOP MEMBER ASSOCIATED WITH EACH RESILIENT END CONTACT FINGER AND HAVING A LOSTMOTION CONNECTION WITH RESPECT THERETO, A PLURALITY OF SPACED COOPERABLE MOVABLE BRIDGING CONTACT STRUCTURES MOUNTED LONGITUDINALLY ALONG THE CASING, MEANS FOR EFFECTING MOTION OF SAID MOVABLE BRIDGING CONTACT STRUCTURES AWAY FROM THE FIRST SAID MOVABLE BRIDGING CONTACTS, ROTATION OF THE INSULATING ROD CAUSING ENGAGEMENT AND DISENGAGEMENT OF THE CONTACTS IN A GENERALLY ZIG-ZAG CURRENT PATH, INSULATING MEANS FOR SPACING THE INSULATING CASING AWAY FROM GROUND POTENTIAL, MEANS FOR ACTUATING THE INSULATING ROD FROM THE LOWER END OF THE CASING, AND THE CASING CONTAINING SULFUR HEXAFLUORIDE GAS.
Claim 2
Dependent Claim
136 words
A CIRCUIT INTERRUPTER INCLUDING A TUBULAR INSULATING CASING, AN INSULATING ROD ROTATABLE WITHIN THE CASING AND CARRYING A PLURALITY OF SPACED MOVABLE BRIDGING CONTACTS THEREWITH, EACH MOVABLE BRIDGING CONTACT HAVING A PAIR OF RESILIENT END CONTACT FINGERS, A STOP MEMBER ASSOCIATED WITH EACH RESILIENT END CONTACT FINGER AND HAVING A LOSTMOTION CONNECTION WITH RESPECT THERETO, A PLURALITY OF SPACED COOPERABLE MOVABLE BRIDGING CONTACT STRUCTURES MOUNTED LONGITUDINALLY ALONG THE CASING, MEANS FOR EFFECTING MOTION OF SAID MOVABLE BRIDGING CONTACT STRUCTURES AWAY FROM THE FIRST SAID MOVABLE BRIDGING CONTACTS, ROTATION OF THE INSULATING ROD CAUSING ENGAGEMENT AND DISENGAGEMENT OF THE CONTACTS IN A GENERALLY ZIG-ZAG CURRENT PATH, INSULATING MEANS FOR SPACING THE INSULATING CASING AWAY FROM GROUND POTENTIAL, MEANS FOR ACTUATING THE INSULATING ROD FROM THE LOWER END OF THE CASING, AND THE CASING CONTAINING SULFUR HEXAFLUORIDE GAS.
References Cited (Backward Citations)
US707843A
Cited
US925994A
Cited
US976549A
Cited
US1493038A
Cited
DE625176C
Cited
US2425159A
Cited
US2568008A
Cited
US2769063A
Cited
US2806110A
Cited
US2821588A
Cited
US2810805A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |