US3257534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synchronous circuit interrupter with closed contacts separated by laterally movable baffle
Assignee: Siemens Schuckertwerke AG
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Filing: 1961-08-29
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Granted: 1966-06-21
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Expires: 1981-08-29
Abstract
No abstract record available.
Inventors
- 👤 Kesselring Fritz
- 👤 Leemann Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:01
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/04; H01H33/06; H01H33/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A SYNCHRONOUS-TYPE ALTERNATING-CURRENT CIRCUIT INTERRUPTER INCLUDING A PAIR OF SEPARABLE CONTACTS, OPERATING MEANS FOR EFFECTING SEPARATION OF SAID PAIR OF SEPARABLE CONTACTS INCLUDING A MOVABLE WEDGE OF INSULATING MATERIAL AND A SYNCHRONOUS OPERATOR THEREFOR, SAID SYNCHRONOUS OPERATOR INCLUDING A MAGNETIC CIRCUIT HAVING AN AIR GAP, MAGNETOMOTIVE FORCE MEANS RESPONSIVE TO THE ALTERNATING CURRENT TO BE INTERRUPTED FOR GENERATING MAGNETIC FLUX IN SAID MAGNETIC CIRCUIT DEPENDENT UPON THE CURRENT TO BE INTERRUPTED, A MOVING COIL ELEMENT DISPOSED WITHIN SAID AIR GAP, MEANS FOR PRODUCING A CURRENT IN SAID MOVING COIL ELEMENT DEPENDENT UPON THE RATE OF CHANGE OF THE CURRENT TO BE INTERRUPTED, AND MEANS ACTUATED BY MOVEMENT OF SAID MOVING COIL ELEMENT FOR CAUSING CONTACT SEPARATING MOTION OF SAID MOVABLE WEDGE.
Claim 2
Dependent Claim
121 words
A SYNCHRONOUS-TYPE ALTERNATING-CURRENT CIRCUIT INTERRUPTER INCLUDING A PAIR OF SEPARABLE CONTACTS, OPERATING MEANS FOR EFFECTING SEPARATION OF SAID PAIR OF SEPARABLE CONTACTS INCLUDING A MOVABLE WEDGE OF INSULATING MATERIAL AND A SYNCHRONOUS OPERATOR THEREFOR, SAID SYNCHRONOUS OPERATOR INCLUDING A MAGNETIC CIRCUIT HAVING AN AIR GAP, MAGNETOMOTIVE FORCE MEANS RESPONSIVE TO THE ALTERNATING CURRENT TO BE INTERRUPTED FOR GENERATING MAGNETIC FLUX IN SAID MAGNETIC CIRCUIT DEPENDENT UPON THE CURRENT TO BE INTERRUPTED, A MOVING COIL ELEMENT DISPOSED WITHIN SAID AIR GAP, MEANS FOR PRODUCING A CURRENT IN SAID MOVING COIL ELEMENT DEPENDENT UPON THE RATE OF CHANGE OF THE CURRENT TO BE INTERRUPTED, AND MEANS ACTUATED BY MOVEMENT OF SAID MOVING COIL ELEMENT FOR CAUSING CONTACT SEPARATING MOTION OF SAID MOVABLE WEDGE.
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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |