Patent US3274480A successfully refreshed from Google Patents.
US3274480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control arrangement for limitting the peak instaneous voltage from an a.c. power source
Assignee: General Electric Co
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Filing: 1962-10-12
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Granted: 1966-09-20
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Expires: 1982-10-12
Abstract
No abstract record available.
Inventors
- 👤 Loren H Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:58
CPC Classifications
H; H02; H02H; H02H7/00; H02H7/10; H02H7/12; H02H7/1216
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
IN COMBINATION WITH AN ALTERNATING CURRENT POWER SOURCE, A PARALLEL ARRANGEMENT OF FIRST AND SECOND OPPOSITELY POLED GATE CONTROLLED RECTIFIERS CONNECTED ACROSS SAID SOURCE, FIRST MEANS CONNECTED ACROSS SAID SOURCE FOR PROVIDING GATING SIGNALS TO SAID FIRST GATE CONTROLLED RECTIFIER IN RESPONSE TO HALF CYCLES OF OUTPUT FROM SAID SOURCE OF ONE POLARITY WHICH EXCEED A CHOSEN VALUE, SECOND MEANS CONNECTED ACROSS SAID SOURCE FOR PROVIDING GATING SIGNALS TO SAID SECOND GATE CONTROLLED RECTIFIER IN RESPONSE TO HALF CYCLES OF OUTPUT FROM SAID SOURCE OF THE OPPOSITE POLARITY AND WHICH EXCEED SAID CHOSEN VALUE, MEANS RESPONSIVE TO CONDUCTIVITY IN SAID FIRST GATE CONTROLLED RECTIFIER DURING HALF CYCLES OF SAID OPPOSITE POLARITY FOR PRODUCING A POTENTIAL IN ADDITIVE RELATIONSHIP WITH THE OUTPUT OF SAID SECOND SIGNAL GATING MEANS TO PROVIDE GATING SIGNALS TO SAID SECOND GATE CONTROLLED RECTIFIER, AND MEANS RESPONSIVE TO CONDUCTION IN SAID SECOND GATE CONTROLLED RECTIFIER DURING HALF CYCLES OF SAID ONE POLARITY FOR PRODUCING A POTENTIAL IN ADDITIVE RELATIONSHIP WITH THE OUTPUT OF SAID FIRST SIGNAL GATING MEANS TO PROVIDE GATING SIGNALS TO SAID FIRST GATE CONTROLLED RECTIFIER.
Claim 2
Dependent Claim
181 words
IN COMBINATION WITH AN ALTERNATING CURRENT POWER SOURCE, A PARALLEL ARRANGEMENT OF FIRST AND SECOND OPPOSITELY POLED GATE CONTROLLED RECTIFIERS CONNECTED ACROSS SAID SOURCE, FIRST MEANS CONNECTED ACROSS SAID SOURCE FOR PROVIDING GATING SIGNALS TO SAID FIRST GATE CONTROLLED RECTIFIER IN RESPONSE TO HALF CYCLES OF OUTPUT FROM SAID SOURCE OF ONE POLARITY WHICH EXCEED A CHOSEN VALUE, SECOND MEANS CONNECTED ACROSS SAID SOURCE FOR PROVIDING GATING SIGNALS TO SAID SECOND GATE CONTROLLED RECTIFIER IN RESPONSE TO HALF CYCLES OF OUTPUT FROM SAID SOURCE OF THE OPPOSITE POLARITY AND WHICH EXCEED SAID CHOSEN VALUE, MEANS RESPONSIVE TO CONDUCTIVITY IN SAID FIRST GATE CONTROLLED RECTIFIER DURING HALF CYCLES OF SAID OPPOSITE POLARITY FOR PRODUCING A POTENTIAL IN ADDITIVE RELATIONSHIP WITH THE OUTPUT OF SAID SECOND SIGNAL GATING MEANS TO PROVIDE GATING SIGNALS TO SAID SECOND GATE CONTROLLED RECTIFIER, AND MEANS RESPONSIVE TO CONDUCTION IN SAID SECOND GATE CONTROLLED RECTIFIER DURING HALF CYCLES OF SAID ONE POLARITY FOR PRODUCING A POTENTIAL IN ADDITIVE RELATIONSHIP WITH THE OUTPUT OF SAID FIRST SIGNAL GATING MEANS TO PROVIDE GATING SIGNALS TO SAID FIRST GATE CONTROLLED RECTIFIER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |