US3105932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical power supply system
Assignee: ELCI PRODUCTS CORP
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Filing: 1961-02-10
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Granted: 1963-10-01
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Expires: 1981-02-10
Abstract
No abstract record available.
Inventors
- 👤 Bob O Burson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:30
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/14; H02J7/1469; H02J7/1484
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
IN AN ELECTRICAL POWER SUPPLY SYSTEM, THE COMBINATION OF AN ELECTRICAL LOAD, FIRST AND SECOND LEAD LINES CONNECTED WITH THE LOAD, FIRST AND SECOND ALTERNATING CURRENT POWER SOURCES CONNECTED WITH SAID LEAD LINES IN PARALLEL RELATIONSHIP WITH EACH OTHER, FIRST AND SECOND RELAY COILS CONNECTED WITH SAID LEAD LINES BETWEEN SAID LOAD AND SAID POWER SOURCES IN PARALLEL RELATIONSHIP WITH EACH OTHER, A FIRST SWITCH MEANS OPERABLE TO SELECTIVELY CONNECT SAID SECOND RELAY COIL WITH SAID LEAD LINES, SAID FIRST SWITCH MEANS BEING OPERATED BY SAID FIRST RELAY COIL RESPONSIVE TO CHANGES IN THE VOLTAGE DROP ACROSS SAID LOAD, A SECOND SWITCH MEANS OPERABLE TO SELECTIVELY DISCONNECT ONE OF SAID POWER SOURCES FROM SAID LEAD LINES, SAID SECOND SWITCH MEANS BEING OPERATED BY SAID SECOND RELAY COIL, AND RESISTANCE MEANS CONNECTED IN SERIES RELATIONSHIP WITH SAID
Claim 2
Dependent Claim
136 words
IN AN ELECTRICAL POWER SUPPLY SYSTEM, THE COMBINATION OF AN ELECTRICAL LOAD, FIRST AND SECOND LEAD LINES CONNECTED WITH THE LOAD, FIRST AND SECOND ALTERNATING CURRENT POWER SOURCES CONNECTED WITH SAID LEAD LINES IN PARALLEL RELATIONSHIP WITH EACH OTHER, FIRST AND SECOND RELAY COILS CONNECTED WITH SAID LEAD LINES BETWEEN SAID LOAD AND SAID POWER SOURCES IN PARALLEL RELATIONSHIP WITH EACH OTHER, A FIRST SWITCH MEANS OPERABLE TO SELECTIVELY CONNECT SAID SECOND RELAY COIL WITH SAID LEAD LINES, SAID FIRST SWITCH MEANS BEING OPERATED BY SAID FIRST RELAY COIL RESPONSIVE TO CHANGES IN THE VOLTAGE DROP ACROSS SAID LOAD, A SECOND SWITCH MEANS OPERABLE TO SELECTIVELY DISCONNECT ONE OF SAID POWER SOURCES FROM SAID LEAD LINES, SAID SECOND SWITCH MEANS BEING OPERATED BY SAID SECOND RELAY COIL, AND RESISTANCE MEANS CONNECTED IN SERIES RELATIONSHIP WITH SAID
References Cited (Backward Citations)
US2506809A
Cited
US2900591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |