US3335349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed detection and control systems incorporating a dc chopper circuit to provide pulses of a constant energy content
Assignee: General Electric Co
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Filing: 1964-08-17
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Granted: 1967-08-08
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Expires: 1984-08-17
Abstract
No abstract record available.
Inventors
- 👤 Cooper David
- 👤 Edward P Priebe
- 👤 Richard A Zeccola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:02
CPC Classifications
G; G01; G01P; G01P3/00; G01P3/42; G01P3/44; G01P3/48; G01P3/4802; G01P3/4805; G01P1/00; G01P1/07; G01P1/08; G01P1/10; G01P1/103; Y; Y10; Y10S; Y10S388/00; Y10S388/907; Y10S388/917; Y10S388/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN A SYSTEM FOR PROVIDING A SIGNAL PROPORTIONAL TO SPEED, THE COMBINATION COMPRISNG: SPEED-RESPONSIVE MEANS FOR PRODUCING PULSES THE RATE OF OCCURRENCE OF WHICH IS INDICATIVE OF SPEED; FIRST CIRCUIT MEANS RESPONSIVE TO SAID SPEED-INDICATIVE PLUSES FOR PRODUCING OUTPUT PULSES WHOSE TIME DURATION DOES NOT EXCEED A PERDETERMINED MAXIMUM; A DC CHOPPER CIRCUIT MEANS RESPONSIVE TO THE OUTPUT PULSES FROM SAID FIRST CURCUIT MEANS FOR PRODUCING OUTPUT PULSES HAVING A FIXED MAGNITUDE AND TIME DURATION; AND PULSE-AVERAGING MEANS RESPONSIVE TO SAID FIXED MAGNITUDE-FIXED TIME DURATION PULSES FOR PROVIDING AN OUTPUT POTENTIAL PROPORTIONAL TO SPEED.
Claim 2
Dependent Claim
94 words
IN A SYSTEM FOR PROVIDING A SIGNAL PROPORTIONAL TO SPEED, THE COMBINATION COMPRISNG: SPEED-RESPONSIVE MEANS FOR PRODUCING PULSES THE RATE OF OCCURRENCE OF WHICH IS INDICATIVE OF SPEED; FIRST CIRCUIT MEANS RESPONSIVE TO SAID SPEED-INDICATIVE PLUSES FOR PRODUCING OUTPUT PULSES WHOSE TIME DURATION DOES NOT EXCEED A PERDETERMINED MAXIMUM; A DC CHOPPER CIRCUIT MEANS RESPONSIVE TO THE OUTPUT PULSES FROM SAID FIRST CURCUIT MEANS FOR PRODUCING OUTPUT PULSES HAVING A FIXED MAGNITUDE AND TIME DURATION; AND PULSE-AVERAGING MEANS RESPONSIVE TO SAID FIXED MAGNITUDE-FIXED TIME DURATION PULSES FOR PROVIDING AN OUTPUT POTENTIAL PROPORTIONAL TO SPEED.
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) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |