US3308302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for determining shaft curvature including rotating shaft and plural photocells
Assignee: Singer Co
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Filing: 1965-09-14
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Granted: 1967-03-07
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Expires: 1985-09-14
Abstract
No abstract record available.
Inventors
- 👤 Fuhrmann Wolf-Dieter
- 👤 Zocher Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:30
CPC Classifications
G; G01; G01B; G01B11/00; G01B11/24; G01B11/2433
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
APPARATUS FOR USE IN GRADING ELONGATED ELEMENTS ACCORDING TO STRAIGHTNESS COMPRISING A SUPPORT ADAPTED TO HOLD AN ELEMENT SUBSTANTIALLY TRANSLATIONALLY STATIONARY, MEANS FOR ROTATING SAID ELEMENT ABOUT AN AXIS SUBSTANTIALLY PARALLEL TO THE LONGITUDINAL AXIS OF SAID ELEMENT, A SOURCE OF RADIANT ENERGY DIRECTED AT AND PERPENDICULAR TO THE LONGITUDINAL AXIS OF SAID ELEMENT, SENSOR MEANS RESPONSIVE TO SAID RADIANT ENERGY AND DISPOSED TO BE SHADOWABLE FROM SAID RADIANT ENERGY WHEN THE FIGURE OF
Claim 2
Dependent Claim
74 words
APPARATUS FOR USE IN GRADING ELONGATED ELEMENTS ACCORDING TO STRAIGHTNESS COMPRISING A SUPPORT ADAPTED TO HOLD AN ELEMENT SUBSTANTIALLY TRANSLATIONALLY STATIONARY, MEANS FOR ROTATING SAID ELEMENT ABOUT AN AXIS SUBSTANTIALLY PARALLEL TO THE LONGITUDINAL AXIS OF SAID ELEMENT, A SOURCE OF RADIANT ENERGY DIRECTED AT AND PERPENDICULAR TO THE LONGITUDINAL AXIS OF SAID ELEMENT, SENSOR MEANS RESPONSIVE TO SAID RADIANT ENERGY AND DISPOSED TO BE SHADOWABLE FROM SAID RADIANT ENERGY WHEN THE FIGURE OF
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |