Patent US2870639A successfully refreshed from Google Patents.
US3213655A
Expired / Lapsed
US
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Workpiece shape control apparatus
Assignee: Westinghouse Electric Corp
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Filing: 1962-12-03
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Granted: 1965-10-26
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Expires: 1982-12-03
Abstract
No abstract record available.
Inventors
- 👤 Reid Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:24
CPC Classifications
B; B21; B21B; B21B37/00; B21B37/28; B21B37/30; B21B37/32; B21B27/00; B21B27/06; B21B27/10; B21B2027/103; B21B27/106
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
191 words
IN WORKPIECE SHAPE CONTROL APPARATUS OPERATIV WITH A ROLLING MILL HAVING A ROLL MEMBER AND INCLUDING A LEFT SCREWDOWN MEANS AND A RIGHT SCREWDOWN MEANS, THE COMBINATION OF FIRST WORKPIECE SHAPE RESPONSIVE MEANS FOR PROVIDING A FIRST CONTROL SIGNAL IN ACCORDANCE WITH THE WORKPIECE SHAPE ERROR AT A FIRST EDGE OF SAID WORKPIECE, SECOND WORKPIECE SHAPE RESPONSIVE MEANS FOR PROVIDING A SECOND CONTROL SIGNAL IN ACCORDANCE WITH THE WORKPIECE SHAPE ERROR AT A SECOND EDGE OF SAID WORKPIECE, FIRST CONTROL MEANS OPERATIVE WITH ONE OF SAID LEFT SCREWDOWN MEANS AND SAID RIGHT SCREWDOWN MEANS AND RESPONSIVE TO SAID FIRST CONTROL SIGNAL FOR CORRECTING THE SHAPE ERROR AT SAID FIRST WORKPIECE EDGE, SECOND CONTROL MEANS OPERATIVE WITH THE OTHER OF SAID LEFT SCREWDOWN MEANS AND SAID RIGHT SCREWDOWN MEANS AND RESPONSIVE TO SAID SECOND CONTROL SIGNAL FOR CORRECTING THE SHAPE ERROR AT SAID SECOND WORKPIECE EDGE, THIRD SHAPE RESPONSIVE MEANS OPERATIVE WITH SAID ROLL MEMBER FOR PROVIDING A THIRD CONTROL SIGNAL IN ACCORDANCE WITH THE ACTUAL SHAPE OF SAID ROLL MEMBER, AND ROLL MEMBER SHAPE CONTROL MEANS RESPONSIVE TO SAID THIRD CONTROL SIGNAL FOR CORRECTING ANY UNDESIRED SHAPE OF SAID ROLL MEMBER.
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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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |