Patent US3178537A successfully refreshed from Google Patents.
US3178537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit interrupter having improved condenser for cooling the products of arcing
Assignee: —
•
Filing: —
•
Granted: 1965-04-13
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Expires: 1982-04-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:10
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/43; H01H9/00; H01H9/30; H01H9/34; H01H9/342
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A CIRCUIT INTERRUPTER INCLUDING MEANS FOR ESTABLISHING AN ARC, A MUFFER CHAMBER FOR RECEIVING THE EXHAUST ARC GASES AN FOR COOLING AND DEIONIZING THE SAME, SAID MUFFER CHAMBER HAVING A FLOW DIRECTING NOZZLE AT THE INLET END THEREOF, THE FLOW-DIRECTING NOZZLE HAVING A RESTRICTED V-SHAPED PASSAGE PROVIDED THEREIN CONVERGING IN THE DIRECTION OF EXHAUST GAS FLOW, METALLIC COOLING MEANS HAVING A GENERALLY CENTRALLY LOCATED OPENING DISPOSED WITHIN SAID MUFFIER CHAMBER FOR COOLING AND DEIONIZING THE ENTERING HOT ARC GASES, AND SAID RESTRICTED V-SHAPED PASSAGE IN THE NOZZLE DIRECTING THE HOT EXHAUST GASES TOWARD SAID GENERALLY CENTRALLY LOCATED OPENING IN THE COOLING MEANS.
Claim 2
Dependent Claim
102 words
A CIRCUIT INTERRUPTER INCLUDING MEANS FOR ESTABLISHING AN ARC, A MUFFER CHAMBER FOR RECEIVING THE EXHAUST ARC GASES AN FOR COOLING AND DEIONIZING THE SAME, SAID MUFFER CHAMBER HAVING A FLOW DIRECTING NOZZLE AT THE INLET END THEREOF, THE FLOW-DIRECTING NOZZLE HAVING A RESTRICTED V-SHAPED PASSAGE PROVIDED THEREIN CONVERGING IN THE DIRECTION OF EXHAUST GAS FLOW, METALLIC COOLING MEANS HAVING A GENERALLY CENTRALLY LOCATED OPENING DISPOSED WITHIN SAID MUFFIER CHAMBER FOR COOLING AND DEIONIZING THE ENTERING HOT ARC GASES, AND SAID RESTRICTED V-SHAPED PASSAGE IN THE NOZZLE DIRECTING THE HOT EXHAUST GASES TOWARD SAID GENERALLY CENTRALLY LOCATED OPENING IN THE COOLING MEANS.
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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) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |