US3214545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-blast circuit interrupters with pressure-actuated fluid directors
Assignee: Westinghouse Electric Corp
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Filing: 1961-04-11
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Granted: 1965-10-26
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Expires: 1981-04-11
Abstract
No abstract record available.
Inventors
- 👤 Charles F Cromer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:30
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/70; H01H33/80; H01H33/82; H01H33/02; H01H33/04; H01H33/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A FLUID-BLAST CIRCUIT INTERUPTER INCLUDING A STATIONARY ORIFICE CHAMBER HAVING AN ORIFICE OPENING THROUGH WHICH A SLIDABLE TUBULAR RETRACTABLE INSULATING FLUID-FLOW DIRECTOR MOVES, CONTACT STRUCTURE THROUGH WHICH FLUID IS NOT EXHAUSTED DISPOSED WITHIN SAID STATIONARY ORIFICE CHAMBER, A TUBULAR CONTACT DISPOSED EXTERNALLY OF SAID ORIFICE CHAMBER AND COOPERABLE WITH SAID FIRST CONTACT TO ESTABLISH AN ARC, MEANS FOR SUPPLYING FLUID PRESSURE TO SAID STATIONARY ORIFICE CHAMBER, SAID FLUID-FLOW DIRECTOR BEING PRESSURE-RESPONSIVE SO AS TO PROJECT FROM SAID ORIFICE CHAMBER UPON APPLICATION OF FLUID PRESSURE, THE EXTENSION OF SAID INSULATING FLUID-FLOW DIRECTOR FORCING ALL THE
Claim 2
Dependent Claim
94 words
A FLUID-BLAST CIRCUIT INTERUPTER INCLUDING A STATIONARY ORIFICE CHAMBER HAVING AN ORIFICE OPENING THROUGH WHICH A SLIDABLE TUBULAR RETRACTABLE INSULATING FLUID-FLOW DIRECTOR MOVES, CONTACT STRUCTURE THROUGH WHICH FLUID IS NOT EXHAUSTED DISPOSED WITHIN SAID STATIONARY ORIFICE CHAMBER, A TUBULAR CONTACT DISPOSED EXTERNALLY OF SAID ORIFICE CHAMBER AND COOPERABLE WITH SAID FIRST CONTACT TO ESTABLISH AN ARC, MEANS FOR SUPPLYING FLUID PRESSURE TO SAID STATIONARY ORIFICE CHAMBER, SAID FLUID-FLOW DIRECTOR BEING PRESSURE-RESPONSIVE SO AS TO PROJECT FROM SAID ORIFICE CHAMBER UPON APPLICATION OF FLUID PRESSURE, THE EXTENSION OF SAID INSULATING FLUID-FLOW DIRECTOR FORCING ALL THE
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |