US3254203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Numerical curve generator, such as for machine tool systems
Assignee: Sentralinstitutt for Industriell Forskning
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Filing: 1962-08-28
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Granted: 1966-05-31
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Expires: 1982-08-28
Abstract
No abstract record available.
Inventors
- 👤 Kveim Kjell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:32
CPC Classifications
G; G06; G06F; G06F17/00; G06F17/10; G06F17/17; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/41; G05B19/4103; G06F7/00; G06F7/38; G06F7/48; G06F7/544
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
IN A NUMERICAL CURVE GENERATOR, TWO SEPARATE REGISTERS FOR STORING RESPECTIVELY TWO NUMBERS WHOSE RATIO DETERMINES THE INSTANTANEOUS SLOPE OF THE CURVE TO BE GENERATED, AN ACCUMULTOR FOR STORING AN ACCUMULATED NUMBER, AN ADD/SUBTRACT UNIT COUPLED TO SAID ACCUMULATOR AND TO SAID REGISTERS, MEANS FOR CAUSING SAID ADD/SUBTRACT UNIT TO ADD ONE OF SAID REGISTER NUMBERS TO SAID ACCUMULATED NUMBER WHEN THE LATTER IS NEGATIVE, MEANS FOR CAUSING SAID ADD/SUBTRACT UNIT TO SUBTRACT THE OTHER OF SAID REGISTER NUMBERS FROM SAID ACCUMULATED NUMBER WHEN THE LATTER IS POSITIVE, FEEDBACK MEANS CONNECTED BETWEEN SAID ADD/SUBTRACT UNIT AND SAID ACCUMULATOR FOR FEEDING BACK TO THE LATTER, AS THE NEW ACCUMULATED NUMBER, THE NUMBER WHICH RESULTS FROM SAID ADDITION OR SUBTRACTION IN THE ADD/SUBTRACT UNIT, MEANS COUPLED TO SAID ADD/ SUBTRACT UNIT AND OPERATIVE SELECTIVELY DEPENDING UPON
Claim 2
Dependent Claim
134 words
IN A NUMERICAL CURVE GENERATOR, TWO SEPARATE REGISTERS FOR STORING RESPECTIVELY TWO NUMBERS WHOSE RATIO DETERMINES THE INSTANTANEOUS SLOPE OF THE CURVE TO BE GENERATED, AN ACCUMULTOR FOR STORING AN ACCUMULATED NUMBER, AN ADD/SUBTRACT UNIT COUPLED TO SAID ACCUMULATOR AND TO SAID REGISTERS, MEANS FOR CAUSING SAID ADD/SUBTRACT UNIT TO ADD ONE OF SAID REGISTER NUMBERS TO SAID ACCUMULATED NUMBER WHEN THE LATTER IS NEGATIVE, MEANS FOR CAUSING SAID ADD/SUBTRACT UNIT TO SUBTRACT THE OTHER OF SAID REGISTER NUMBERS FROM SAID ACCUMULATED NUMBER WHEN THE LATTER IS POSITIVE, FEEDBACK MEANS CONNECTED BETWEEN SAID ADD/SUBTRACT UNIT AND SAID ACCUMULATOR FOR FEEDING BACK TO THE LATTER, AS THE NEW ACCUMULATED NUMBER, THE NUMBER WHICH RESULTS FROM SAID ADDITION OR SUBTRACTION IN THE ADD/SUBTRACT UNIT, MEANS COUPLED TO SAID ADD/ SUBTRACT UNIT AND OPERATIVE SELECTIVELY DEPENDING UPON
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |