Patent US1725499A successfully refreshed from Google Patents.
US3554651A
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Screw calibration method and apparatus
Assignee: Rusco Industries Inc
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Filing: 1967-10-18
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Granted: 1971-01-12
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Expires: 1987-10-18
Abstract
Abstract A SCREW IS CALIBRATED BY SENSING THE LOCATION ALONG THE SCREW OF A FIRST SELECTED SCREW PORTION IN RELATION TO A FIRST POINT OFFSET FROM THE SCREW FOR ESTABLISHING A FIRST CORRESPONDING OPTICAL AXIS, SENSING THE LOCATION ALONG THE SCREW OF A SECOND SELECTED SCREW PORTION RELATION TO A SECOND POINT OFFSET FROM THE SCREW AND ESTABLISHING A SECOND CORRESPONDING OPTICAL AXIS, THE OFFSET POINTS BEING SPACED ALONG THE SCREW, AND DERIVING AN INDICATION OF THE RELATIVE ANGULARITY OF THOSE AXES.
Inventors
- 👤 William A Ware
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:44
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/14; G01B5/16; G01B5/163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |