US3295017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Repeating circuit interrupter
Assignee: McGraw Edison Co
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Filing: 1963-11-21
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Granted: 1966-12-27
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Expires: 1983-11-21
Abstract
No abstract record available.
Inventors
- 👤 Richard E Riebs
- 👤 Alvin F Loeffler
- 👤 Norbert J Reis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:27
CPC Classifications
H; H01; H01H; H01H75/00; H01H75/02; H01H75/04; H02; H02H; H02H3/00; H02H3/02; H02H3/06; H02H3/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
251 words
A REPEATING CIRCUIT INTERRUPTER INCLUDING MAIN SWITCH MEANS IN CIRCUIT WITH AN ELECTRICAL SYSTEM, SWITCH OPENING MEANS OPERABLE UPON THE OCCURRENCE OF AN OVERLOAD IN SAID SYSTEM, AND SWITCH OPENING MEANS INCLUDING OVERLOAD RESPONSIVE MEANS AND A PLURALITY OF TIME DELAY MEANS FOR DELAYING THE OPENING OF SAID MAIN SWITCH MEANS, SAID TIME DELAY MEANS HAVING DIFFERENT DELAY CHARACTERISTICS, ONE OF SAID TIME DELAY MEANS BEING IN OPERATIVE ASSOCIATION WITH SAID OVERLOAD RESPONSIVE MEANS DURING AN INITIAL ONE OF THE OPERATIONS OF SAID SWITCH OPENING MEANS, SECONDARY SWITCHING MEANS OPERABLE AFTER A SUBSEQUENT OPENING OPERATION OF SAID MAIN SWITCH MEANS TO PLACE A DIFFERENT ONE OF SAID PLURALIT OF TIME DELAY MEANS IN OPERATIVE ASSOCIATION WITH SAID OVERLOAD RESPONSIVE MEANS SO THAT THE TIME DELAY OF THE NEXT SUCCEEDING OPENING OPERATION OF SAID MAIN SWITCH MEANS WILL HAVE A DIFFERENT TIME DELAY, ELECTROMOTIVE MEANS FOR EFFECTING THE RECLOSURE OF SAID MAIN SWITCH MEANS, A PLURALITY OF RECLOSING TIME DELAY MEANS EACH OPERABLE TO COMPLETE AN ENERGIZING CIRCUIT TO SAID ELECTROMOTIVE MEANS TO RECLOSE SAID MAIN SWITCH MEANS, SAID SECONDARY SWITCHING MEANS ALSO BEING SEQUENTIALLY OPERABLE AFTER EACH OPENING OPERATION OF SAID MAIN SWITCH MEANS TO ACTUATE A DIFFERENT ONE OF SAID RECLOSING TIME DELAY MEANS SO THAT THE TIME DELAY OF EACH RECLOSING OPERATION OF SAID MAIN SWITCHING MEANS MAY BE CONTROLLED, SAID SECONDARY SWITCH MEANS BEING OPERABLE AFTER A PRESELECTED NUMBER OF RECLOSING OPERATIONS TO OPEN CIRCUIT SAID ELECTROMOTIVE MEANS AND PREVENT THE FURTHER RECLOSURE OF SAID MAIN SWITCH MEANS.
Claim 2
Dependent Claim
251 words
A REPEATING CIRCUIT INTERRUPTER INCLUDING MAIN SWITCH MEANS IN CIRCUIT WITH AN ELECTRICAL SYSTEM, SWITCH OPENING MEANS OPERABLE UPON THE OCCURRENCE OF AN OVERLOAD IN SAID SYSTEM, AND SWITCH OPENING MEANS INCLUDING OVERLOAD RESPONSIVE MEANS AND A PLURALITY OF TIME DELAY MEANS FOR DELAYING THE OPENING OF SAID MAIN SWITCH MEANS, SAID TIME DELAY MEANS HAVING DIFFERENT DELAY CHARACTERISTICS, ONE OF SAID TIME DELAY MEANS BEING IN OPERATIVE ASSOCIATION WITH SAID OVERLOAD RESPONSIVE MEANS DURING AN INITIAL ONE OF THE OPERATIONS OF SAID SWITCH OPENING MEANS, SECONDARY SWITCHING MEANS OPERABLE AFTER A SUBSEQUENT OPENING OPERATION OF SAID MAIN SWITCH MEANS TO PLACE A DIFFERENT ONE OF SAID PLURALIT OF TIME DELAY MEANS IN OPERATIVE ASSOCIATION WITH SAID OVERLOAD RESPONSIVE MEANS SO THAT THE TIME DELAY OF THE NEXT SUCCEEDING OPENING OPERATION OF SAID MAIN SWITCH MEANS WILL HAVE A DIFFERENT TIME DELAY, ELECTROMOTIVE MEANS FOR EFFECTING THE RECLOSURE OF SAID MAIN SWITCH MEANS, A PLURALITY OF RECLOSING TIME DELAY MEANS EACH OPERABLE TO COMPLETE AN ENERGIZING CIRCUIT TO SAID ELECTROMOTIVE MEANS TO RECLOSE SAID MAIN SWITCH MEANS, SAID SECONDARY SWITCHING MEANS ALSO BEING SEQUENTIALLY OPERABLE AFTER EACH OPENING OPERATION OF SAID MAIN SWITCH MEANS TO ACTUATE A DIFFERENT ONE OF SAID RECLOSING TIME DELAY MEANS SO THAT THE TIME DELAY OF EACH RECLOSING OPERATION OF SAID MAIN SWITCHING MEANS MAY BE CONTROLLED, SAID SECONDARY SWITCH MEANS BEING OPERABLE AFTER A PRESELECTED NUMBER OF RECLOSING OPERATIONS TO OPEN CIRCUIT SAID ELECTROMOTIVE MEANS AND PREVENT THE FURTHER RECLOSURE OF SAID MAIN SWITCH MEANS.
References Cited (Backward Citations)
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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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |