US3219956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brushless rotary inductive devices
Assignee: Unisys Corp
•
Filing: 1961-09-22
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Granted: 1965-11-23
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Expires: 1981-09-22
Abstract
No abstract record available.
Inventors
- 👤 William H Newell
- 👤 Matero Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:24
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/20; G01D5/22; G01D5/225; G01D5/2275; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T292/205
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
IN A DEVICE OF THEA CLASS DESCRIBED A FIRST AND A SECOND POLE PIECE EACH HAVING AN AIR GAP, AN INDIVIDUAL ENERGIZING COIL FOR EACH OF SAID POLE PIECES, AN INDIVIDUAL OUTPUT COIL FOR EACH OF SAID POLES PIECES, A SHAFT ROTATABLY MOUNTED BETWEEN SAID POLE PIECES, AN ELECTRICALLY CONDUCTIVE PLATE MOUNTED TO SAID SHAFT AND MOVABLE IN SAID AIR GAPS IN VARYING DEGREES DEPENDING UPON THE ANGULAR POSITION OF SAID SHAFT, FIRST MEANS ELECTRICALLY CONNECTING SAID ENERGIZING COILS TO EACH OTHER AND THE SECOND MEANS ELECTRICALLY CONNECTING SAID OUTPUT COILS TO EACH OTHER WHEREBY UPON ENERGIZATION OF SAID ENERGIZING COILS BY A SOURCE OF ALTERNATING VOLTAGE THE VOLTAGES INDUCED IN SAID OUTPUT COILS ARE COMBINED TO PRODUCE A VOLTAGE OUTPUT THAT IS A FUNCTION OF SHAFT POSITION.
Claim 2
Dependent Claim
128 words
IN A DEVICE OF THEA CLASS DESCRIBED A FIRST AND A SECOND POLE PIECE EACH HAVING AN AIR GAP, AN INDIVIDUAL ENERGIZING COIL FOR EACH OF SAID POLE PIECES, AN INDIVIDUAL OUTPUT COIL FOR EACH OF SAID POLES PIECES, A SHAFT ROTATABLY MOUNTED BETWEEN SAID POLE PIECES, AN ELECTRICALLY CONDUCTIVE PLATE MOUNTED TO SAID SHAFT AND MOVABLE IN SAID AIR GAPS IN VARYING DEGREES DEPENDING UPON THE ANGULAR POSITION OF SAID SHAFT, FIRST MEANS ELECTRICALLY CONNECTING SAID ENERGIZING COILS TO EACH OTHER AND THE SECOND MEANS ELECTRICALLY CONNECTING SAID OUTPUT COILS TO EACH OTHER WHEREBY UPON ENERGIZATION OF SAID ENERGIZING COILS BY A SOURCE OF ALTERNATING VOLTAGE THE VOLTAGES INDUCED IN SAID OUTPUT COILS ARE COMBINED TO PRODUCE A VOLTAGE OUTPUT THAT IS A FUNCTION OF SHAFT POSITION.
References Cited (Backward Citations)
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US2468126A
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US2763781A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |