US3076126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor control
Assignee: Schneider Electric USA Inc
•
Filing: 1959-12-30
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Granted: 1963-01-29
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Expires: 1979-12-30
Abstract
No abstract record available.
Inventors
- 👤 Charles A Schurr
- 👤 Jr Calvin B Sanborn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:04
CPC Classifications
B; B66; B66C; B66C13/00; B66C13/18; B66C13/22; B66C13/23; B66C13/26; B66C2700/00; B66C2700/08; B66C2700/081
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A CONTROL HAVING A THREE PHASE POWER CIRCUIT INCLUDING THREE POWER LINES DEFINING A THREE PHASE SOURCE, A SET OF FORWARD CURRENT RESTRICTIVE DEVICES ARRANGED AT LEAST ONE DEVICE IN EACH OF TWO OF THE LINES, A SET OF AT LEAST TWO REVERSING CURRENT RESTRICTIVE DEVICES ACROSS SAID TWO OF THE LINES, ONE OF THE REVERSING DEVICES BEING CONNECTED TO ONE OF THE TWO LINES THROUGH AN INTERMEDIATE TAP ON THE FORWARD DEVICE OF THAT ONE OF THE TWO LINES, THE OTHER BEING CONNECTED TO THE OTHER OF THE TWO LINES THROUGH AN INTERMEDIATE TAP ON THE FORWARD DEVICE OF THE SAID OTHER OF THE TWO LINES, AND MEANS CONTROLLING THE DEGREE OF CONDUCTIVITY OF ALL OF SAID DEVICES SO THAT THE CONDUCTIVITY OF
Claim 2
Dependent Claim
124 words
A CONTROL HAVING A THREE PHASE POWER CIRCUIT INCLUDING THREE POWER LINES DEFINING A THREE PHASE SOURCE, A SET OF FORWARD CURRENT RESTRICTIVE DEVICES ARRANGED AT LEAST ONE DEVICE IN EACH OF TWO OF THE LINES, A SET OF AT LEAST TWO REVERSING CURRENT RESTRICTIVE DEVICES ACROSS SAID TWO OF THE LINES, ONE OF THE REVERSING DEVICES BEING CONNECTED TO ONE OF THE TWO LINES THROUGH AN INTERMEDIATE TAP ON THE FORWARD DEVICE OF THAT ONE OF THE TWO LINES, THE OTHER BEING CONNECTED TO THE OTHER OF THE TWO LINES THROUGH AN INTERMEDIATE TAP ON THE FORWARD DEVICE OF THE SAID OTHER OF THE TWO LINES, AND MEANS CONTROLLING THE DEGREE OF CONDUCTIVITY OF ALL OF SAID DEVICES SO THAT THE CONDUCTIVITY OF
References Cited (Backward Citations)
US2734157A
Cited
US2918614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |