Patent US3117252A successfully refreshed from Google Patents.
US3117252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaker control
Assignee: Allis Chalmers Corp
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Filing: 1959-06-23
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Granted: 1964-01-07
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Expires: 1979-06-23
Abstract
No abstract record available.
Inventors
- 👤 Baude John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:51
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/003; H02H11/00; H02H11/004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
IN COMBINATION WITH A CIRCUIT BREAKER CONNECTING TWO ALTERNATING CURRENT SYSTEMS, STATIC CONTROL MEANS FOR SAID CIRCUIT BREAKER COMPRISING, MEANS FOR PRODUCING A FIRST OUTPUT VOLTAGE OVER A FIRST PREDETERMINED RANGE OF VECTOR RELATIONSHIPS BETWEEN THE VOLTAGES OF SAID SYSTEMS, MEANS FOR PRODUCING A SECOND OUTPUT VOLTAGE OVER A SECOND PREDETERMINED RANGE OF VECTOR RELATIONSHIPS BETWEEN THE VOLTAGES OF SAID SYSTEMS, MEANS FOR PRODUCING A THIRD OUTPUT VOLTAGE RESPONSIVE IN POLARITY TO A PREDETERMINED LEAD OR LAG OF THE CURRENT THROUGH SAID CIRCUIT BREAKER RELATIVE TO THE VOLTAGE OF ONE OF SAID SYSTEMS, CIRCUIT BREAKER CLOSURE MEANS IN SAID CONTROL MEANS, MEANS RESPONSIVE TO SAID FIRST AND SECOND OUTPUT VOLTAGES TO RENDER SAID CLOSURE MEANS INOPERATIVE, TRIP MEANS IN SAID CONTROL MEANS, MEANS CONNECTING SAID TRIP MEANS TO BE RESPONSIVE TO SAID THIRD OUTPUT VOLTAGE.
Claim 2
Dependent Claim
135 words
IN COMBINATION WITH A CIRCUIT BREAKER CONNECTING TWO ALTERNATING CURRENT SYSTEMS, STATIC CONTROL MEANS FOR SAID CIRCUIT BREAKER COMPRISING, MEANS FOR PRODUCING A FIRST OUTPUT VOLTAGE OVER A FIRST PREDETERMINED RANGE OF VECTOR RELATIONSHIPS BETWEEN THE VOLTAGES OF SAID SYSTEMS, MEANS FOR PRODUCING A SECOND OUTPUT VOLTAGE OVER A SECOND PREDETERMINED RANGE OF VECTOR RELATIONSHIPS BETWEEN THE VOLTAGES OF SAID SYSTEMS, MEANS FOR PRODUCING A THIRD OUTPUT VOLTAGE RESPONSIVE IN POLARITY TO A PREDETERMINED LEAD OR LAG OF THE CURRENT THROUGH SAID CIRCUIT BREAKER RELATIVE TO THE VOLTAGE OF ONE OF SAID SYSTEMS, CIRCUIT BREAKER CLOSURE MEANS IN SAID CONTROL MEANS, MEANS RESPONSIVE TO SAID FIRST AND SECOND OUTPUT VOLTAGES TO RENDER SAID CLOSURE MEANS INOPERATIVE, TRIP MEANS IN SAID CONTROL MEANS, MEANS CONNECTING SAID TRIP MEANS TO BE RESPONSIVE TO SAID THIRD OUTPUT VOLTAGE.
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) | 1967-01-06 | 1967-07-08 | 1968-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-06 | 1971-07-08 | 1972-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-06 | 1975-07-08 | 1976-01-07 | $7700.00 | Window Closed / Lapsed |