US3083323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Numerical positioning control system
Assignee: General Electric Co
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Filing: 1959-12-16
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Granted: 1963-03-26
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Expires: 1979-12-16
Abstract
No abstract record available.
Inventors
- 👤 Hervey E Vigour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:43
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/33; G05B19/35; G05B19/351; G05D; G05D3/00; G05D3/12; G05D3/125; G05D3/127; G05B2219/00; G05B2219/30; G05B2219/37; G05B2219/37262; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/300896
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A SERVO POSITIONING SYSTEM COMPRISING MEANS FOR GENERATING A PAIR OF POSITION SIGNALS WHICH VARY AS SINE AND COSINE FUNCTIONS WITH ONE CYCLE OF SAID SIGNALS CORRESPONDING TO A PREDETERMINED RANGE OF POSITIONS OF SAID SYSTEM, MEANS FOR DERIVING A PORTION OF SAID SINE FUNCTION PROPORTIONAL TO THE COSINE OF A GIVEN ANGLE, MEANS FOR DERIVING A PORTION OF SAID COSINE FUNCTION PROPORTIONAL TO THE SINE OF SAID ANGLE, MEANS FOR COMBINING SAID PORTIONS TO PRODUCE A SIGNAL WHICH VARIES AS THE SINE OF THE DIFFERENCE BETWEEN THE ANGULAR POSITION OF SAID SYSTEM IN SAID CYCLE AND SAID GIVEN ANGLE, AND MEANS RESPONSIVE TO SAID LAST NAMED SIGNAL FOR POSITIONING SAID SYSTEM TO REDUCE SAID DIFFERENCE TO ZERO.
Claim 2
Dependent Claim
118 words
A SERVO POSITIONING SYSTEM COMPRISING MEANS FOR GENERATING A PAIR OF POSITION SIGNALS WHICH VARY AS SINE AND COSINE FUNCTIONS WITH ONE CYCLE OF SAID SIGNALS CORRESPONDING TO A PREDETERMINED RANGE OF POSITIONS OF SAID SYSTEM, MEANS FOR DERIVING A PORTION OF SAID SINE FUNCTION PROPORTIONAL TO THE COSINE OF A GIVEN ANGLE, MEANS FOR DERIVING A PORTION OF SAID COSINE FUNCTION PROPORTIONAL TO THE SINE OF SAID ANGLE, MEANS FOR COMBINING SAID PORTIONS TO PRODUCE A SIGNAL WHICH VARIES AS THE SINE OF THE DIFFERENCE BETWEEN THE ANGULAR POSITION OF SAID SYSTEM IN SAID CYCLE AND SAID GIVEN ANGLE, AND MEANS RESPONSIVE TO SAID LAST NAMED SIGNAL FOR POSITIONING SAID SYSTEM TO REDUCE SAID DIFFERENCE TO ZERO.
References Cited (Backward Citations)
US2343159A
Cited
US2783422A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |