US3291970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic control apparatus
Assignee: General Electric Co
•
Filing: 1962-11-21
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Granted: 1966-12-13
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Expires: 1982-11-21
Abstract
No abstract record available.
Inventors
- 👤 John T Evans
- 👤 Leroy U C Kelling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:29
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/33; G05B19/37; G05B19/371; G05B2219/00; G05B2219/30; G05B2219/49; G05B2219/49395; G05B2219/50; G05B2219/50019
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN AN OBJECT POSITIONING SYSTEM WHEREIN A COMMANDED POSITION OF SAID OBJECT IS REPRESENTED BY A PHASECODED COMMAND SIGNAL AND THE ACTUAL POSITION OF SAID OBJECT IS REPRESENTED BY THE PHASE-CODED POSITION SIGNAL, MEANS FOR ASCERTAINING THE PRESENCE OF SAID OBJECT WITHIN A PRESELECTED DISTANCE FROM SAID COMMANDED POSITION COMPRISING, A FIRST BISTABLE ELEMENT NORMALLY RESIDING IN A FIRST STATE AND OPERATIVE TO ASSUME A SECOND STATE WITHIN A PRESELECTED TIME INTERVAL BEFORE AND AFTER OCCURRENCE OF SAID COMMAND SIGNAL, AND A SECOND BISTABLE ELEMENT CONTROLLED BY SAID FIRST BISTABLE ELEMENT AND RESPONSIVE TO SAID POSITION SIGNAL TO ASSUME A FIRST OR SECOND STATE IN ACCORDANCE WITH THE CONDITION OF SAID FIRST BISTABLE ELEMENT.
Claim 2
Dependent Claim
114 words
IN AN OBJECT POSITIONING SYSTEM WHEREIN A COMMANDED POSITION OF SAID OBJECT IS REPRESENTED BY A PHASECODED COMMAND SIGNAL AND THE ACTUAL POSITION OF SAID OBJECT IS REPRESENTED BY THE PHASE-CODED POSITION SIGNAL, MEANS FOR ASCERTAINING THE PRESENCE OF SAID OBJECT WITHIN A PRESELECTED DISTANCE FROM SAID COMMANDED POSITION COMPRISING, A FIRST BISTABLE ELEMENT NORMALLY RESIDING IN A FIRST STATE AND OPERATIVE TO ASSUME A SECOND STATE WITHIN A PRESELECTED TIME INTERVAL BEFORE AND AFTER OCCURRENCE OF SAID COMMAND SIGNAL, AND A SECOND BISTABLE ELEMENT CONTROLLED BY SAID FIRST BISTABLE ELEMENT AND RESPONSIVE TO SAID POSITION SIGNAL TO ASSUME A FIRST OR SECOND STATE IN ACCORDANCE WITH THE CONDITION OF SAID FIRST BISTABLE ELEMENT.
References Cited (Backward Citations)
US2866506A
Cited
US3098995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |