US3176104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressed air switch with auxiliary arc gap
Assignee: BBC Brown Boveri AG Germany
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Filing: 1964-05-18
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Granted: 1965-03-30
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Expires: 1984-05-18
Abstract
No abstract record available.
Inventors
- 👤 Spinnler Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:36
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/04; H01H33/12; H01H33/16; H01H33/164
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
IN AN ELECTRIC SWITCH OF THE TYPE WHEREIN A PRESSURIZED GAS IS UTILIZED TO FACILITATE ARC EXTINCTION, THE COMBINATION COMPRISING A MAIN CHAMBER CONTAINING A PAIR OF MAIN LOAD CONTACTS ADAPTED TO BE OPENED AND CLOSED IN CONJUNCTION WITH THE PASSAGE OF PRESSURIZED GAS THROUGH SAID CHAMBER, SAID CONTACTS WHEN OPENED DRAWING A MAIN ARC THEREBETWEEN, A CURRENT-REDUCING RESISTANCE ELEMENT, AN AUXILIARY ARC GAP STRUCTURE OPERABLE INDEPENDENTLY OF THE ARC ESTABLISHED BETWEEN SAID MAIN LOAD CONTACTS TO CONNECT SAID RESISTANCE ELEMENT IN PARALLEL WITH THE ENTIRE MAIN ARC DRAWN BETWEEN SAID MAIN LOAD CONTACTS, SAID AUXILIARY ARC GAP STRUCTURE BEING CONTAINED WITHIN AN AUXILIARY CHAMBER THROUGH WHICH THE PRESSURIZED GAS PASSES AFTER LEAVING SAID MAIN CHAMBER AND COMPRISING A FIRST STATIONARY ELECTRODE CONNECTED TO ONE OF SAID MAIN LOAD CONTACTS, A SECOND STATIONARY ELECTRODE ARRANGED IN SPACED RELATION TO SAID FIRST ELECTRODE AND WHICH IS CONNECTED TO ONE END OF SAID RESISTANCE ELEMENT, THE OTHER END OF SAID RESISTANCE ELEMENT BEING CONNECTED TO SAID OTHER MAIN LOAD CONTACT, AND A THIRD STATIONARY ELECTRODE
Claim 2
Dependent Claim
173 words
IN AN ELECTRIC SWITCH OF THE TYPE WHEREIN A PRESSURIZED GAS IS UTILIZED TO FACILITATE ARC EXTINCTION, THE COMBINATION COMPRISING A MAIN CHAMBER CONTAINING A PAIR OF MAIN LOAD CONTACTS ADAPTED TO BE OPENED AND CLOSED IN CONJUNCTION WITH THE PASSAGE OF PRESSURIZED GAS THROUGH SAID CHAMBER, SAID CONTACTS WHEN OPENED DRAWING A MAIN ARC THEREBETWEEN, A CURRENT-REDUCING RESISTANCE ELEMENT, AN AUXILIARY ARC GAP STRUCTURE OPERABLE INDEPENDENTLY OF THE ARC ESTABLISHED BETWEEN SAID MAIN LOAD CONTACTS TO CONNECT SAID RESISTANCE ELEMENT IN PARALLEL WITH THE ENTIRE MAIN ARC DRAWN BETWEEN SAID MAIN LOAD CONTACTS, SAID AUXILIARY ARC GAP STRUCTURE BEING CONTAINED WITHIN AN AUXILIARY CHAMBER THROUGH WHICH THE PRESSURIZED GAS PASSES AFTER LEAVING SAID MAIN CHAMBER AND COMPRISING A FIRST STATIONARY ELECTRODE CONNECTED TO ONE OF SAID MAIN LOAD CONTACTS, A SECOND STATIONARY ELECTRODE ARRANGED IN SPACED RELATION TO SAID FIRST ELECTRODE AND WHICH IS CONNECTED TO ONE END OF SAID RESISTANCE ELEMENT, THE OTHER END OF SAID RESISTANCE ELEMENT BEING CONNECTED TO SAID OTHER MAIN LOAD CONTACT, AND A THIRD STATIONARY ELECTRODE
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) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |