US3071669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit interrupters
Assignee: Westinghouse Electric Corp
•
Filing: 1959-01-13
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Granted: 1963-01-01
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Expires: 1979-01-13
Abstract
No abstract record available.
Inventors
- 👤 Winthrop M Leeds
- 👤 Harry J Lingal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:20
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/70; H01H33/98; H01H1/00; H01H1/12; H01H1/14; H01H1/22; H01H33/02; H01H33/04; H01H33/22; H01H1/20; H01H1/2041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A CIRCUIT INTERRUPTER OF THE TYPE HAVING A GENERALLY U-SHAPED CURRENT PATH INCLUDING AN INSULATING INTERRUPTING TUBE CLOSED AT ONE END THEREOF AND OPEN AT ITS OPPOSITE END, ONLY A SINGLE PAIR OF SPACED RELATIVELY STATIONARY CONTACT STRUCTURES DISPOSED ALONG THE TUBE, ONE OF SAID RELATIVELY STATIONARY CONTACT STRUCTURES HAVING A REVERSE BEND ASSOCIATED THEREWITH TO FORCE THE CURRENT PASSING THERETHROUGH TO FLOW IN A GENERALLY U-SHAPED REVERSED PATH, A ROTATABLE BRINGING CONTACT BLADE DISPOSED LONGITUDINALLY WITHIN SAID INTERRUPTING TUBE AND MAKING BRIDGING ENGAGEMENT WITH SAID SPACED PAIR OF RELATIVELY STATIONARY CONTACT STRUCTURES, MEANS PIVOTALLY MOUNTING SAID ROTATABLE BRIDGING CONTACT BLADE INTERMEDIATE THE ENDS THEREOF ABOUT AN AXIS WHICH EXTENDS SUBSTANTIALLY DIAMETRICALLY ACROSS THE INTERRUPTING TUBE INTERNALLY THEREOF, SAID AXIS BEING DISPOSED INTERMEDIATE THE ENDS OF SAID INTERRUPTING TUBE, AND MEANS FOR CAUSING ROTATION OF SAID CONTACT BRIDGING BLADE ABOUT SAID AXIS.
Claim 2
Dependent Claim
142 words
A CIRCUIT INTERRUPTER OF THE TYPE HAVING A GENERALLY U-SHAPED CURRENT PATH INCLUDING AN INSULATING INTERRUPTING TUBE CLOSED AT ONE END THEREOF AND OPEN AT ITS OPPOSITE END, ONLY A SINGLE PAIR OF SPACED RELATIVELY STATIONARY CONTACT STRUCTURES DISPOSED ALONG THE TUBE, ONE OF SAID RELATIVELY STATIONARY CONTACT STRUCTURES HAVING A REVERSE BEND ASSOCIATED THEREWITH TO FORCE THE CURRENT PASSING THERETHROUGH TO FLOW IN A GENERALLY U-SHAPED REVERSED PATH, A ROTATABLE BRINGING CONTACT BLADE DISPOSED LONGITUDINALLY WITHIN SAID INTERRUPTING TUBE AND MAKING BRIDGING ENGAGEMENT WITH SAID SPACED PAIR OF RELATIVELY STATIONARY CONTACT STRUCTURES, MEANS PIVOTALLY MOUNTING SAID ROTATABLE BRIDGING CONTACT BLADE INTERMEDIATE THE ENDS THEREOF ABOUT AN AXIS WHICH EXTENDS SUBSTANTIALLY DIAMETRICALLY ACROSS THE INTERRUPTING TUBE INTERNALLY THEREOF, SAID AXIS BEING DISPOSED INTERMEDIATE THE ENDS OF SAID INTERRUPTING TUBE, AND MEANS FOR CAUSING ROTATION OF SAID CONTACT BRIDGING BLADE ABOUT SAID AXIS.
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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) | 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 |