US3278710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit interrupting device with a movable arc-hood
Assignee: Westinghouse Electric Corp
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Filing: 1964-03-13
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Granted: 1966-10-11
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Expires: 1984-03-13
Abstract
No abstract record available.
Inventors
- 👤 Stephen A Mrenna
- 👤 Howard E Reichert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:34
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/30; H01H9/34; H01H9/345; H01H9/20; H01H9/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A CONTROL DEVICE COMPRISING A PAIR OF CONTACTS, MEANS FOR OPERATING SAID CONTACTS BETWEEN OPENED AND CLOSED POSITIONS, A TERMINAL STRUCTURE FOR ENABLING CONNECTION OF SAID CONTACTS IN AN ELECTRIC CIRCUIT, AND ARC-HOOD STRUCTURE DISPOSED IN A FIRST POSITION TO RECEIVE THE ARC ESTABLISHED WHEN SAID CONTACTS ARE OPERATED TO THE OPEN POSITION, SAID ARC-HOOD STRUCTURE IN SAID FIRST POSITION COVERING SAID TERMINAL STRUCTURE, SAID ARC-HOOD STRUCTURE BEING RECTILINEARLY MOVABLE, TO A SECOND POSITION UNCOVERING SAID TERMINAL STRUCTURE, AND SAID CONTROL DEVICE COMPRISING GUIDE MEANS RESTRAINING SAID ARC-HOOD STRUCTURE FOR RECTILINEAR MOVEMENT.
Claim 2
Dependent Claim
92 words
A CONTROL DEVICE COMPRISING A PAIR OF CONTACTS, MEANS FOR OPERATING SAID CONTACTS BETWEEN OPENED AND CLOSED POSITIONS, A TERMINAL STRUCTURE FOR ENABLING CONNECTION OF SAID CONTACTS IN AN ELECTRIC CIRCUIT, AND ARC-HOOD STRUCTURE DISPOSED IN A FIRST POSITION TO RECEIVE THE ARC ESTABLISHED WHEN SAID CONTACTS ARE OPERATED TO THE OPEN POSITION, SAID ARC-HOOD STRUCTURE IN SAID FIRST POSITION COVERING SAID TERMINAL STRUCTURE, SAID ARC-HOOD STRUCTURE BEING RECTILINEARLY MOVABLE, TO A SECOND POSITION UNCOVERING SAID TERMINAL STRUCTURE, AND SAID CONTROL DEVICE COMPRISING GUIDE MEANS RESTRAINING SAID ARC-HOOD STRUCTURE FOR RECTILINEAR MOVEMENT.
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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |