Patent US3241389A successfully refreshed from Google Patents.
US3241389A
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Apparatus for positioning machine elements
Assignee: Stewart Warner Corp
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Filing: 1963-11-26
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Granted: 1966-03-22
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Expires: 1983-11-26
Abstract
No abstract record available.
Inventors
- 👤 Brouwer Frans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:38
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/33; G05B19/35; G05B19/351; G05B2219/00; G05B2219/30; G05B2219/41; G05B2219/41032; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1261; Y10T74/1275; Y10T74/19; Y10T74/19535; Y10T82/00; Y10T82/20; Y10T82/25; Y10T82/2531; Y10T82/2549
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
85 words
IN COMBINATION WITH A MACHINE HAVING AN ELEMENT FOR POSITIONED CONTROL, CONTROL APPARATUS COMPRISING MOTIVE MEANS, MEANS FOR MECHANICALLY COUPLING SAID ELEMENT TO SAID MOTIVE MEANS FOR POSITIONING SAID ELEMENT, MEANS DRIVEN BY SAID COUPLING MEANS FOR PRODUCING A FIRST SIGNAL REPRESENTING APPROXIMATELY THE POSITION OF SAID ELEMENT, MEANS INCLUDING SAID COUPLING MEANS FOR PRODUCING A SECOND SIGNAL REPRESENTING THE MECHANICAL ERROR INTRODUCED BY SAID COUPLING MENAS, AND MEANS FOR ADDING SAID SIGNALS TO PRODUCED A THIRD SIGNAL REPRESENTING THE ACTUAL POSITION OF SAID ELEMENT.
References Cited (Backward Citations)
US3048044A
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US3068705A
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US3092742A
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US2982145A
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US3038352A
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US3159038A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |