US3209498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine tool rigidity control mechanism
Assignee: Individual
•
Filing: 1963-07-09
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Granted: 1965-10-05
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Expires: 1983-07-09
Abstract
No abstract record available.
Inventors
- 👤 Albert H Dall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:34
CPC Classifications
B; B24; B24B; B24B49/00; B24B49/16; B23; B23Q; B23Q15/00; B24B5/00; B24B5/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
IN A CENTERLESS GRINDING MACHING HAVING A GRINDING WHEEL AND A REGULATING WHEEL SPACED APART TO DEFINE A GRINDING THROAT THEREBETWEEN FOR GRINDING WORKPIECES AS THEY PASS THERETHROUGH, THE WORKPIECES IN THE THROAT PRODUCING GRINDING STRESSES IN THE MACHINE TENDING TO SEPARATE SAID WHEELS, A COMPENSATION MECHANISM COMPRISING: (A) MEANS TO PRODUCE A SIGNAL PROPORTIONAL IN MAGNITUDE TO THE AMOUNT OF GRINDING STRESSES WITHIN THE MACHINE AND VARIABLE THEREWITH, (B) MEANS TO PRODUCE VARIABLE COMPENSATION STRESSES WITHIN THE MACHINE, AND (C) MEANS RESPONSIVE TO SAID SIGNAL AND TH MAGNITUDE THEREOF TO CONTROL SAID COMPENSATION STRESS PRODUCING MEANS TO PRODUCE SAID COMPENSATION STRESSES OF A MAGNITUDE TENDING TO MAINTAIN THE ALGEBRAIC SUM OF SAID GRINDING AND COMPENSATION STRESSES CONSTANT OVER A PREDETERMINED RANGED.
Claim 2
Dependent Claim
122 words
IN A CENTERLESS GRINDING MACHING HAVING A GRINDING WHEEL AND A REGULATING WHEEL SPACED APART TO DEFINE A GRINDING THROAT THEREBETWEEN FOR GRINDING WORKPIECES AS THEY PASS THERETHROUGH, THE WORKPIECES IN THE THROAT PRODUCING GRINDING STRESSES IN THE MACHINE TENDING TO SEPARATE SAID WHEELS, A COMPENSATION MECHANISM COMPRISING: (A) MEANS TO PRODUCE A SIGNAL PROPORTIONAL IN MAGNITUDE TO THE AMOUNT OF GRINDING STRESSES WITHIN THE MACHINE AND VARIABLE THEREWITH, (B) MEANS TO PRODUCE VARIABLE COMPENSATION STRESSES WITHIN THE MACHINE, AND (C) MEANS RESPONSIVE TO SAID SIGNAL AND TH MAGNITUDE THEREOF TO CONTROL SAID COMPENSATION STRESS PRODUCING MEANS TO PRODUCE SAID COMPENSATION STRESSES OF A MAGNITUDE TENDING TO MAINTAIN THE ALGEBRAIC SUM OF SAID GRINDING AND COMPENSATION STRESSES CONSTANT OVER A PREDETERMINED RANGED.
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |