Patent US3564379A successfully refreshed from Google Patents.
US3564379A
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US
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Automatic position inspector
Assignee: General Electric Co
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Filing: 1969-07-02
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Granted: 1971-02-16
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Expires: 1989-07-02
Abstract
Abstract A MACHINE TOOL NUMERICAL CONTROL SYSTEM WITH THE CAPABILITY OF TRACKING THE MACHINE TOOL MOVEMENT WHEN THE CONTROL LOOP IS BROKEN. THE COMMAND SIGNAL AND FEED BACK SIGNAL ARE COMPARED AND THE ERROR IS USED TO UPDATE THE ABSOLUTE POSITION REGISTER AND ALSO THE COMMAND SIGNAL ITSELF. WHEN THE CONTROL LOOP IS AGAIN IN OPERATION THERE IS SUBSTANTIALLY NO DISCREPANCY BETWEEN THE ELECTRONIC EQUIPMENT INDICATING POSITION AND ACTUAL POSITION.
Inventors
- 👤 Joseph F Bakel
- 👤 Brinley A Gyorko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:04
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; G05B2219/41186; G05B2219/42; G05B2219/42118; G05B2219/50; G05B2219/50083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |