US3325633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Numerical control system to keep object position within predetermined range
Assignee: General Electric Co
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Filing: 1963-07-24
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Granted: 1967-06-13
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Expires: 1983-07-24
Abstract
No abstract record available.
Inventors
- 👤 Ii George B Lukens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:47
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/33; G05B19/37; G05B19/371; G05B19/373
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
216 words
IN A NUMERCIAL CONTROL SYSTEM WHEREIN COMMANDED MOTION OF AN OBJECT IS INDICATED BY FIRST PULSES INDICATIVE OF THE DESIRED VELOCITY OF SAID OBJECT, WHEREIN ACTUAL MOTION OF SAID OBJECT IS INDICATED BY SECOND PULSES INDICATIVE OF THE ACTUAL VELOCITY OF SAID OBJECT, WHEREIN THE RELATION OF SAID COMMANDED MOTION OF SAID ACTUAL MOTION OF SAID OBJECT IS INDICATED BY THE PHASE RELATION OF SAID FIRST AND SAID SECOND PULSES, AND WHEREIN SAID PHASE RELATION IS INDICATED BY MEANS WHICH RESPOND TO AN INCREMENTAL CHANGE IN SAID PHASE RELATION IN ONE DIRECTION AND WHICH RESPOND TO AN INCREMENTAL CHANGE IN SAID P HASE RELATION IN THE OPPOSITE DIRECTION, AN ERROR LIMITING CIRCUIT FOR LIMITING THE NUMBER OF SAID INCREMENTAL CHANGES COMPRISING: DETECTING MEANS ADAPTED TO BE COUPLED TO SAID PHASE RELATION INDICATING MEANS FOR DETECTING A PREDETERMINED NUMBER OF INCREMENTAL CHANGES IN SAID ONE DIRECTION AND FOR DETECTING A PREDETERMINED NUMBER OF INCREMENTAL CHANGES IN SAID OPPOSITE DIRECTION; AND MEANS COUPLED TO SAID DETECTING MEANS AND ADAPTED TO BE COUPLED TO SAID NUMERICAL CONTROL SYSTEM FOR BLOCKNG SAID FIRST PULSES IN RESPONSE TO THE DETECTION OF SAID PREDETERMINED NUMBER OF CHANGES IN SAID ONE DIRECTION AND FOR BLOCKING SAID FIRST PULSES IN RESPONSE TO THE DETECTION OF SAID PREDETERMINED NUMBER OF CHANGES IN SAID OPPOSITE DIRECTION.
Claim 2
Dependent Claim
216 words
IN A NUMERCIAL CONTROL SYSTEM WHEREIN COMMANDED MOTION OF AN OBJECT IS INDICATED BY FIRST PULSES INDICATIVE OF THE DESIRED VELOCITY OF SAID OBJECT, WHEREIN ACTUAL MOTION OF SAID OBJECT IS INDICATED BY SECOND PULSES INDICATIVE OF THE ACTUAL VELOCITY OF SAID OBJECT, WHEREIN THE RELATION OF SAID COMMANDED MOTION OF SAID ACTUAL MOTION OF SAID OBJECT IS INDICATED BY THE PHASE RELATION OF SAID FIRST AND SAID SECOND PULSES, AND WHEREIN SAID PHASE RELATION IS INDICATED BY MEANS WHICH RESPOND TO AN INCREMENTAL CHANGE IN SAID PHASE RELATION IN ONE DIRECTION AND WHICH RESPOND TO AN INCREMENTAL CHANGE IN SAID P HASE RELATION IN THE OPPOSITE DIRECTION, AN ERROR LIMITING CIRCUIT FOR LIMITING THE NUMBER OF SAID INCREMENTAL CHANGES COMPRISING: DETECTING MEANS ADAPTED TO BE COUPLED TO SAID PHASE RELATION INDICATING MEANS FOR DETECTING A PREDETERMINED NUMBER OF INCREMENTAL CHANGES IN SAID ONE DIRECTION AND FOR DETECTING A PREDETERMINED NUMBER OF INCREMENTAL CHANGES IN SAID OPPOSITE DIRECTION; AND MEANS COUPLED TO SAID DETECTING MEANS AND ADAPTED TO BE COUPLED TO SAID NUMERICAL CONTROL SYSTEM FOR BLOCKNG SAID FIRST PULSES IN RESPONSE TO THE DETECTION OF SAID PREDETERMINED NUMBER OF CHANGES IN SAID ONE DIRECTION AND FOR BLOCKING SAID FIRST PULSES IN RESPONSE TO THE DETECTION OF SAID PREDETERMINED NUMBER OF CHANGES IN SAID OPPOSITE DIRECTION.
References Cited (Backward Citations)
US3086154A
Cited
US3206663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |