US3293498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary electrical power system
Assignee: Allis Chalmers Corp
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Filing: 1965-10-22
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Granted: 1966-12-20
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Baude John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:51
CPC Classifications
H; H02; H02H; H02H1/00; H02H1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
MEANS FOR PROVIDING TRIPPING ENERGY FOR A CONDUIT BREAKER COMPRISING: TRIPPING MEANS RESPONSIVE TO A MOMENTARY CURRENT OF PREDETERMINED AMPLITUDE FOR TRIPPING THE CIRCUIT BREAKER; FIRST ELECTRICAL ENERGY STORAGE MEANS; MEANS FOR CHARGING THE FIRST STORAGE MEANS TO A PRESELECTED LEVEL; INVERTER MEANS ENERGIZED BY THE FIRST STORAGE MEANS FOR PRODUCING A RELATIVELY HIGH VOLTAGE OUTPUT; SECOND ELECTRICAL ENERGY STORAGE MEANS CONNECTED TO RECEIVE THE OUTPUT AND TO BE CHARGED THEREBY, SAID SECOND STORAGE MEANS COMPRISING A FIRST CIRCUIT AND A SECOND CIRCUIT CONNECTED IN PARALLEL WITH BOTH CIRCUITS CONNECTED TO BE CHARGED BY THE RECTIFIED SOURCE, AND SAID STORAGE MEANS INCLUDING MEANS TO BLOCK CURRENT FLOW BETWEEN SAID FIRST CIRCUIT AND SAID SECOND CIRCUIT; AND MEANS FOR CONNECTING A SELECTED ONE OF SAID FIRST CIRCUIT OR SAID SECOND CIRCUIT ACROSS THE TRIPPING MEANS.
Claim 2
Dependent Claim
134 words
MEANS FOR PROVIDING TRIPPING ENERGY FOR A CONDUIT BREAKER COMPRISING: TRIPPING MEANS RESPONSIVE TO A MOMENTARY CURRENT OF PREDETERMINED AMPLITUDE FOR TRIPPING THE CIRCUIT BREAKER; FIRST ELECTRICAL ENERGY STORAGE MEANS; MEANS FOR CHARGING THE FIRST STORAGE MEANS TO A PRESELECTED LEVEL; INVERTER MEANS ENERGIZED BY THE FIRST STORAGE MEANS FOR PRODUCING A RELATIVELY HIGH VOLTAGE OUTPUT; SECOND ELECTRICAL ENERGY STORAGE MEANS CONNECTED TO RECEIVE THE OUTPUT AND TO BE CHARGED THEREBY, SAID SECOND STORAGE MEANS COMPRISING A FIRST CIRCUIT AND A SECOND CIRCUIT CONNECTED IN PARALLEL WITH BOTH CIRCUITS CONNECTED TO BE CHARGED BY THE RECTIFIED SOURCE, AND SAID STORAGE MEANS INCLUDING MEANS TO BLOCK CURRENT FLOW BETWEEN SAID FIRST CIRCUIT AND SAID SECOND CIRCUIT; AND MEANS FOR CONNECTING A SELECTED ONE OF SAID FIRST CIRCUIT OR SAID SECOND CIRCUIT ACROSS THE TRIPPING MEANS.
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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |