Patent US3230443A successfully refreshed from Google Patents.
US3230443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage regulator for generators
Assignee: LEECE NEVILLE CO
•
Filing: 1962-04-12
•
Granted: 1966-01-18
•
Expires: 1982-04-12
Abstract
No abstract record available.
Inventors
- 👤 William M Hallidy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:11
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/14; H02J7/16; H02J7/24; H02J7/2437; Y; Y02; Y02T; Y02T10/00; Y02T10/80; Y02T10/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN AN ELECTRICAL GENERATING SYSTEM, A GENERATING MACHINE HAVING AN OUTPUT TO BE CONTROLLED AT HIGH AND LOW OUTPUT LEVELS, MEANS DERIVING A CONTROL VOLTAGE WHICH VARIES WITH SAID OUTPUT, A CONTROL CIRCUIT IN WHICH THE CURRENT IS TO BE SWITCHED ON AND OFF AT RESPECTIVE ONES OF SAID LEVELS TO CONTROL SAID OUTPUT, A FIRST VOLTAGE BREAKDOWN DEVICE IN SAID CIRCUIT HAVING CURRENT CONDUCTIVE AND NONCONDUCTIVE STATES DEPENDING ON THE VOLTAGE THEREACROSS AND IN WHICH STATE THE CONTROL CURRENT IN THE CIRCUIT IS RESPECTIVELY ON AND OFF, CIRCUIT MEANS FOR APPLYING A FIRST VOLTAGE ACROSS SAID CONTROL CIRCUIT TO RENDER SAID DEVICE CONDUCTIVE, SAID CIRCUIT MEANS INCLUDING A SECOND VOLTAGE BREAKDOWN DEVICE RESPONSIVE TO SAID CONTROL VOLTAGE FOR LOWERING THE VOLTAGE ACROSS SAID CONTROL
Claim 2
Dependent Claim
125 words
IN AN ELECTRICAL GENERATING SYSTEM, A GENERATING MACHINE HAVING AN OUTPUT TO BE CONTROLLED AT HIGH AND LOW OUTPUT LEVELS, MEANS DERIVING A CONTROL VOLTAGE WHICH VARIES WITH SAID OUTPUT, A CONTROL CIRCUIT IN WHICH THE CURRENT IS TO BE SWITCHED ON AND OFF AT RESPECTIVE ONES OF SAID LEVELS TO CONTROL SAID OUTPUT, A FIRST VOLTAGE BREAKDOWN DEVICE IN SAID CIRCUIT HAVING CURRENT CONDUCTIVE AND NONCONDUCTIVE STATES DEPENDING ON THE VOLTAGE THEREACROSS AND IN WHICH STATE THE CONTROL CURRENT IN THE CIRCUIT IS RESPECTIVELY ON AND OFF, CIRCUIT MEANS FOR APPLYING A FIRST VOLTAGE ACROSS SAID CONTROL CIRCUIT TO RENDER SAID DEVICE CONDUCTIVE, SAID CIRCUIT MEANS INCLUDING A SECOND VOLTAGE BREAKDOWN DEVICE RESPONSIVE TO SAID CONTROL VOLTAGE FOR LOWERING THE VOLTAGE ACROSS SAID CONTROL
References Cited (Backward Citations)
US2980843A
Cited
US3009091A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |