US3552861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for determining the displacement of a component of a machine tool with the aid of a grating mechanically connected to the component
Assignee: US Philips Corp
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Filing: 1967-10-03
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Granted: 1971-01-05
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Expires: 1987-10-03
Abstract
Abstract A DEVICE FOR DETERMINING THE LINEAR DISPLACEMENT OF A MACHINE TOOL ON WHICH A FIRST GRATING IS PLACED. A SCANNING IMAGE FORMED BY PROJECTING THE IMAGE OF AN IDDITIONAL FIXED GATING ONTO A ROTATING POLYHEDRON REFLECTOR IS BIFURCATED BY AN IMAGE INVERTING MIRROR. THE SCANNING IMAGE AND SPATIALLY SEPARATED INVERTED SCANNING IMAGE ARE PROJECTED ONTO DIFFERENT PORTIONS OF THE FIRST GRATING.
Inventors
- 👤 Scato Albarda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:51
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/26; G01D5/32; G01D5/34; G01D5/347; G01D5/34707; G01D5/34715; G01D5/36; G01D5/38
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |