Patent US4966597A successfully refreshed from Google Patents.
US3223830A
Expired / Lapsed
US
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Position indicating device
Assignee: General Electric Co
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Filing: 1963-03-14
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Granted: 1965-12-14
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Expires: 1983-03-14
Abstract
No abstract record available.
Inventors
- 👤 John T Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:54
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/33; H; H04; H04B; H04B3/00; H04B3/02; G05B19/35; G05B19/351; G05B2219/00; G05B2219/30; G05B2219/35; G05B2219/35481; G05B2219/41; G05B2219/41105; G05B2219/41461; H03; H03M; H03M1/00; H03M1/12; H03M1/48; H03M1/485
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN A SYSTEM HAVING A PLURALITY OF POSITION FEEDBACK DEVICES THAT PRODUCE RECURRING SIGNALS HAVING DIFFERENT POSITION SIGNIFICANCES AND HAVING PHASES RELATIVE TO A REFERENCE SIGNAL WHICH ARE INDICATIVE OF THE POSITION OF AN OBJECT, A POSITION INDICATING DEVICE COMPRISING A PLURALITY OF SELECTIVELY ENABLED COUNTERS OF DIFFERENT AND OVERLAPPING SIGNFICANCIES, MEANS COUPLING EACH OF SAID POSITION FEEDBACK DEVICES TO A RESPECTIVE ONE OF SAID COUNTERS FOR RESPECTIVELY PERMITTING SAID RECURRING SIGNALS TO ENABLE SAID COUNTERS AT PREDETERMINED TIMES RELATIVE SO SAID REFERENCE SIGNAL WHEREBY SAID COUNTERS MAY COUNT AND FOR RESPECTIVELY AND SUBSEQUENTLY DISABLING SAID COUNTERS AT PREDETERMINED TIMES RELATIVE TO SAID REFERENCE SIGNAL WHEREBY SAID COUNTERS STOP COUNTING, MEANS COUPLED TO SAID COUNTERS FOR COMPARING SAID OVERLAPPING SIGNIFICANES AND CORRECTING THE COUNTERS ON THE BASIS OF THIS COMPARISON, AND MEANS COUPLED TO SAID COUNTERS FOR UTILIZING THE CORRECTED COUNT THEREIN.
Claim 2
Dependent Claim
142 words
IN A SYSTEM HAVING A PLURALITY OF POSITION FEEDBACK DEVICES THAT PRODUCE RECURRING SIGNALS HAVING DIFFERENT POSITION SIGNIFICANCES AND HAVING PHASES RELATIVE TO A REFERENCE SIGNAL WHICH ARE INDICATIVE OF THE POSITION OF AN OBJECT, A POSITION INDICATING DEVICE COMPRISING A PLURALITY OF SELECTIVELY ENABLED COUNTERS OF DIFFERENT AND OVERLAPPING SIGNFICANCIES, MEANS COUPLING EACH OF SAID POSITION FEEDBACK DEVICES TO A RESPECTIVE ONE OF SAID COUNTERS FOR RESPECTIVELY PERMITTING SAID RECURRING SIGNALS TO ENABLE SAID COUNTERS AT PREDETERMINED TIMES RELATIVE SO SAID REFERENCE SIGNAL WHEREBY SAID COUNTERS MAY COUNT AND FOR RESPECTIVELY AND SUBSEQUENTLY DISABLING SAID COUNTERS AT PREDETERMINED TIMES RELATIVE TO SAID REFERENCE SIGNAL WHEREBY SAID COUNTERS STOP COUNTING, MEANS COUPLED TO SAID COUNTERS FOR COMPARING SAID OVERLAPPING SIGNIFICANES AND CORRECTING THE COUNTERS ON THE BASIS OF THIS COMPARISON, AND MEANS COUPLED TO SAID COUNTERS FOR UTILIZING THE CORRECTED COUNT THEREIN.
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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |