US3350637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable frequency to pulse-width converter
Assignee: Bendix Corp
•
Filing: 1964-05-07
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Granted: 1967-10-31
•
Expires: 1984-05-07
Abstract
No abstract record available.
Inventors
- 👤 Pochtar Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:40
CPC Classifications
G; G01; G01R; G01R23/00; G01R23/02; G01R23/06; G01R23/09; H; H03; H03K; H03K11/00; H03K7/00; H03K7/08; H03K9/00; H03K9/06; H03M; H03M1/00; H03M1/12; H03M1/50; H03M1/504
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
FOR USE WITH AN ALTERNATOR HAVING A ROTOR DRIVEN AT A VARIABLE SPEED SO AS TO PROVIDE AN OUTPUT VOLTAGE HAVING A FREQUENCY DIRECTLY PROPORTIONAL TO THE SPEED OF ROTATION OF THE ROTOR OF THE ALTERNATOR, AND MEANS TO PROVIDE AN EXTERNAL REFERENCE SQUARE WAVE CURRENT; A DEVICE COMPRISING FIRST MEANS CONNECTED TO THE ALTERNATOR FOR PROVIDING A DIRECT CURRENT VOLTAGE OF AN AMPLITUDE PROPORTIONAL TO THE FREQUENCY OF THE OUTPUT VOLTAGE FROM THE ALTERNATOR, SECOND MEANS CONNECTED TO THE MEANS FOR PROVIDING AN EXTERNAL REFERENCE SQUARE WAVE CURRENT AND CONNECTED TO THE FIRST MEANS, AND CONTROLLED BY SAID DIRECT CURRENT VOLTAGE FROM THE FIRST MEANS SO AS TO CONVERT THE SQUARE WAVE REFERENCE CURRENT INTO
Claim 2
Dependent Claim
116 words
FOR USE WITH AN ALTERNATOR HAVING A ROTOR DRIVEN AT A VARIABLE SPEED SO AS TO PROVIDE AN OUTPUT VOLTAGE HAVING A FREQUENCY DIRECTLY PROPORTIONAL TO THE SPEED OF ROTATION OF THE ROTOR OF THE ALTERNATOR, AND MEANS TO PROVIDE AN EXTERNAL REFERENCE SQUARE WAVE CURRENT; A DEVICE COMPRISING FIRST MEANS CONNECTED TO THE ALTERNATOR FOR PROVIDING A DIRECT CURRENT VOLTAGE OF AN AMPLITUDE PROPORTIONAL TO THE FREQUENCY OF THE OUTPUT VOLTAGE FROM THE ALTERNATOR, SECOND MEANS CONNECTED TO THE MEANS FOR PROVIDING AN EXTERNAL REFERENCE SQUARE WAVE CURRENT AND CONNECTED TO THE FIRST MEANS, AND CONTROLLED BY SAID DIRECT CURRENT VOLTAGE FROM THE FIRST MEANS SO AS TO CONVERT THE SQUARE WAVE REFERENCE CURRENT INTO
References Cited (Backward Citations)
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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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |