Patent US3356798A successfully refreshed from Google Patents.
US3356798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disconnect switch
Assignee: Westinghouse Electric Corp
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Filing: 1965-12-13
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Granted: 1967-12-05
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Expires: 1985-12-13
Abstract
No abstract record available.
Inventors
- 👤 John P Mckinnon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:06
CPC Classifications
H; H02; H02B; H02B13/00; H02B13/02; H02B13/035; H01; H01H; H01H31/00; H01H31/26; H01H31/32; H01H33/00; H01H33/02; H01H33/28; H01H33/30; H01H33/32; H02B13/075; H01H31/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
191 words
A DISCONNECT SWITCH COMPRISING A GENERALLY HOLLOW, CYLINDRICAL HOUSING SUBSTANTIALLY FILLED WITH AN ELECTRICALLY INSULATING GAS UNDER PRESSURE, FIRST AND SECOND CONDUCTORS SPACED AXIALLY WITHIN THE HOUSING, ELECTRICALLY INSULATING MEANS FOR SUPPORTING THE CONDUCTORS WITHIN THE HOUSING AND FOR CLOSING OFF THE GAS SPACE WITHIN THE HOUSING AT THE ENDS THEREOF, GENERALLY HOLLOW, CYLINDRICAL CORONA SHIELDS ATTACHED TO EACH OF THE CONDUCTORS, THE ADJACENT ENDS OF THE CORONA SHIELDS BEING SPACED FROM ONE ANOTHER AND HAVING AXIALLY ALIGNED OPENINGS THEREIN, FIRST FIXED CONTACT MEANS DISPOSED WITHIN ONE OF THE CORONA SHIELDS AND ELECTRICALLY CONNECTED TO THE ASSOCIATED CONDUCTOR, ADDITIONAL FIXED CONTACT MEANS DISPOSED WITHIN THE OTHER CORONA SHIELD, A SWITCH BLADE HAVING A PISTON FORMED INTEGRALLY THEREWITH NEAR ONE END AND DISPOSED WITHIN THE OTHER CORONA SHIELD, THE SWITCH BLADE BEING RECIPROCALLY MOVABLE TO ENGAGE BOTH THE FIRST FIXED AND THE ADDITIONAL FIXED CONTACT MEANS, AND MEANS OPERATIVELY CONNECTED TO THE OTHER CORONA SHIELD FOR SELECTIVELY APPLYING ELECTRICALLY INSULATING GAS UNDER PRESSURE TO THE OPPOSITE SIDES OF THE PISTON TO ACTUATE THE SWITCH BLADE BETWEEN OPEN AND CLOSED POSITIONS WITH RESPECT TO BOTH THE FIRST AND THE ADDITIONAL FIXED CONTACT MEANS.
Claim 2
Dependent Claim
191 words
A DISCONNECT SWITCH COMPRISING A GENERALLY HOLLOW, CYLINDRICAL HOUSING SUBSTANTIALLY FILLED WITH AN ELECTRICALLY INSULATING GAS UNDER PRESSURE, FIRST AND SECOND CONDUCTORS SPACED AXIALLY WITHIN THE HOUSING, ELECTRICALLY INSULATING MEANS FOR SUPPORTING THE CONDUCTORS WITHIN THE HOUSING AND FOR CLOSING OFF THE GAS SPACE WITHIN THE HOUSING AT THE ENDS THEREOF, GENERALLY HOLLOW, CYLINDRICAL CORONA SHIELDS ATTACHED TO EACH OF THE CONDUCTORS, THE ADJACENT ENDS OF THE CORONA SHIELDS BEING SPACED FROM ONE ANOTHER AND HAVING AXIALLY ALIGNED OPENINGS THEREIN, FIRST FIXED CONTACT MEANS DISPOSED WITHIN ONE OF THE CORONA SHIELDS AND ELECTRICALLY CONNECTED TO THE ASSOCIATED CONDUCTOR, ADDITIONAL FIXED CONTACT MEANS DISPOSED WITHIN THE OTHER CORONA SHIELD, A SWITCH BLADE HAVING A PISTON FORMED INTEGRALLY THEREWITH NEAR ONE END AND DISPOSED WITHIN THE OTHER CORONA SHIELD, THE SWITCH BLADE BEING RECIPROCALLY MOVABLE TO ENGAGE BOTH THE FIRST FIXED AND THE ADDITIONAL FIXED CONTACT MEANS, AND MEANS OPERATIVELY CONNECTED TO THE OTHER CORONA SHIELD FOR SELECTIVELY APPLYING ELECTRICALLY INSULATING GAS UNDER PRESSURE TO THE OPPOSITE SIDES OF THE PISTON TO ACTUATE THE SWITCH BLADE BETWEEN OPEN AND CLOSED POSITIONS WITH RESPECT TO BOTH THE FIRST AND THE ADDITIONAL FIXED CONTACT MEANS.
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) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |