Patent US5551427A successfully refreshed from Google Patents.
US3211896A
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Automatic control apparatus
Assignee: General Electric Co
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Filing: 1962-05-14
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Granted: 1965-10-12
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Expires: 1982-05-14
Abstract
No abstract record available.
Inventors
- 👤 John T Evans
- 👤 Ii George B Lukens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:54
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/33; G05B19/37; G05B19/371; G05B2219/00; G05B2219/30; G05B2219/50; G05B2219/50334; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5152; Y10T29/5154; Y10T82/00; Y10T82/25; Y10T82/2502
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
AN AUTOMATIC CONTROL APPARATUS FOR MACHINE TOOLS, COMPRISING: A TRANSDUCER MEANS FOR TRANSLATING A CONTROL SIGNAL IN THE FORM OF THE FREQUENCY OF A PULSE TRAIN INTO AN OUTPUT UTILIZATION SIGNAL IN A FORM DEFINED BY A CHARACTERISTIC OTHER THAN PULSE FREQUENCY; FIRST CONTROL MEANS COUPLED TO THE INPUT OF SAID TRANSDUCER MEANS FOR PARTIALLY DETERMINING AND CONTROLLING THE MAGNITUDE OF SAID OTHER CHARACTERISTIC OF SAID OUTPUT UTILIZATION SIGNAL; SECOND CONTROL MEANS COUPLED TO THE INPUT OF SAID TRANSDUCER MEANS FOR PARTIALLY DETERMINING AND CONTROLLING THE MAGNITUDE OF SAID OTHER CHARACTERISTIC OF SAID OUTPUT UTILIZATION SIGNAL; SAID SECOND CONTROL MEANS INCLUDING MEANS FOR REGISTERING FOR SUBSEQUENT USE THAT PART OF THE CHANGE IN MAGNITUDE OF SAID OTHER CHARACTER IN SAID OUTPUT UTILIZATION SIGNAL DETERMINED BY SAID SECOND CONTROL MEANS.
Claim 2
Dependent Claim
129 words
AN AUTOMATIC CONTROL APPARATUS FOR MACHINE TOOLS, COMPRISING: A TRANSDUCER MEANS FOR TRANSLATING A CONTROL SIGNAL IN THE FORM OF THE FREQUENCY OF A PULSE TRAIN INTO AN OUTPUT UTILIZATION SIGNAL IN A FORM DEFINED BY A CHARACTERISTIC OTHER THAN PULSE FREQUENCY; FIRST CONTROL MEANS COUPLED TO THE INPUT OF SAID TRANSDUCER MEANS FOR PARTIALLY DETERMINING AND CONTROLLING THE MAGNITUDE OF SAID OTHER CHARACTERISTIC OF SAID OUTPUT UTILIZATION SIGNAL; SECOND CONTROL MEANS COUPLED TO THE INPUT OF SAID TRANSDUCER MEANS FOR PARTIALLY DETERMINING AND CONTROLLING THE MAGNITUDE OF SAID OTHER CHARACTERISTIC OF SAID OUTPUT UTILIZATION SIGNAL; SAID SECOND CONTROL MEANS INCLUDING MEANS FOR REGISTERING FOR SUBSEQUENT USE THAT PART OF THE CHANGE IN MAGNITUDE OF SAID OTHER CHARACTER IN SAID OUTPUT UTILIZATION SIGNAL DETERMINED BY SAID SECOND CONTROL MEANS.
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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |