US3317792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load protection circuit
Assignee: Westinghouse Electric Corp
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Filing: 1964-03-20
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Granted: 1967-05-02
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Expires: 1984-03-20
Abstract
No abstract record available.
Inventors
- 👤 James F Sutherland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:27
CPC Classifications
H; H02; H02H; H02H9/00; H02H9/04; H02H9/041; H02H3/00; H02H3/08; H02H3/087; H02H3/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
IN A LOAD PROTECTION CIRCUIT OPERATIVE WITH A VOLTAGE SOURCE, THE COMBINATION OF FIRST VOLTAGE SENSING MEANS OPERATIVE WITH SAID VOLTAGE SOURCE FOR SENSING THE OCCURRENCE OF AN UNDERVOLTAGE CONDITION RELATIVE TO SAID LOAD, SECOND VOLTAGE SENSING MEANS OPERATIVE WITH SAID VOLTAGE SOURCE FOR PROVIDING A CONTROL SIGNAL UPON THE OCCURRENCE OF AN OVERVOLTAGE CONDITION RELATIVE TO SAID LOAD, VOLTAGE CONTROL MEANS OPERATIVE WITH SAID LOAD AND RESPONSIVE TO SAID CONTROL SIGNAL FOR PROVIDING AN UNDERVOLTAGE CONDITION RELATIVE TO SAID LOAD, AND CIRCUIT MEANS CONNECTED ACROSS SAID VOLTAGE SOURCE AND OPERATIVE WITH SAID FIRST VOLTAGE SENSING MEANS TO CONTROL THE VOLTAGE WITH SAID FIRST SAID LOAD UPON THE OCCURRENCE OF SAID UNDERVOLTAGE CONDITION.
Claim 2
Dependent Claim
113 words
IN A LOAD PROTECTION CIRCUIT OPERATIVE WITH A VOLTAGE SOURCE, THE COMBINATION OF FIRST VOLTAGE SENSING MEANS OPERATIVE WITH SAID VOLTAGE SOURCE FOR SENSING THE OCCURRENCE OF AN UNDERVOLTAGE CONDITION RELATIVE TO SAID LOAD, SECOND VOLTAGE SENSING MEANS OPERATIVE WITH SAID VOLTAGE SOURCE FOR PROVIDING A CONTROL SIGNAL UPON THE OCCURRENCE OF AN OVERVOLTAGE CONDITION RELATIVE TO SAID LOAD, VOLTAGE CONTROL MEANS OPERATIVE WITH SAID LOAD AND RESPONSIVE TO SAID CONTROL SIGNAL FOR PROVIDING AN UNDERVOLTAGE CONDITION RELATIVE TO SAID LOAD, AND CIRCUIT MEANS CONNECTED ACROSS SAID VOLTAGE SOURCE AND OPERATIVE WITH SAID FIRST VOLTAGE SENSING MEANS TO CONTROL THE VOLTAGE WITH SAID FIRST SAID LOAD UPON THE OCCURRENCE OF SAID UNDERVOLTAGE CONDITION.
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) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |