US3118069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photo-electric device for determining relative positions
Assignee: Optique et Precision de Levallois SA
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Filing: 1961-02-13
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Granted: 1964-01-14
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Expires: 1981-02-13
Abstract
No abstract record available.
Inventors
- 👤 Guillant Andre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:58
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/26; G01D5/32; G01D5/34; G01D5/36; G01D5/363
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A PHOTO-ELECTRIC APPARATUS FOR DETERMINING THE RELATIVE POSITIONS OF TWO OBJECTS OF WHICH ONE IS MOVABLE IN PARALLEL RELATIONSHIP WITH RESPECT TO THE OTHER, COMPRISING, IN COMBINATION, PROJECTOR MEANS CARRIED BY ONE OF SAID OBJECTS AND PROJECTING A BEAM OF LIGHT OF PREDETERMINED WIDTH IN A DIRECTION TRANSVERSE OF THE DIRECTION OF MOVABILITY OF SAID ONE OF SAID OBJECTS; AN ELONGATED OPTICAL SEPARATOR MEMBER ARRANGED ON THE OTHER ONE OF SAID OBJECTS AND EXTENDING IN SAID DIRECTION OF MOVABILITY THEREOF, SAID SEPARATOR MEMBER BEING ARRANGED OPPOSITE SAID PROJECTOR MEANS AND THEREFORE MOVABLE ACROSS SAID BEAM OF LIGHT FOR BEING ILLUMINATED ON ONE SIDE AND COMPRISING A SERIES OF LONGITUDINALLY ALIGNED IDENTICAL PROJECTIONS HAVING EACH A TRIANGULAR PROFILE LOCATED IN THE PLANE COMMON TO SAID DIRECTION OF MOVABILITY AND TO SAID BEAM OF LIGHT AND THEREBY SEPARATING SAID BEAM OF LIGHT INTO TWO BEAM POR-
Claim 2
Dependent Claim
144 words
A PHOTO-ELECTRIC APPARATUS FOR DETERMINING THE RELATIVE POSITIONS OF TWO OBJECTS OF WHICH ONE IS MOVABLE IN PARALLEL RELATIONSHIP WITH RESPECT TO THE OTHER, COMPRISING, IN COMBINATION, PROJECTOR MEANS CARRIED BY ONE OF SAID OBJECTS AND PROJECTING A BEAM OF LIGHT OF PREDETERMINED WIDTH IN A DIRECTION TRANSVERSE OF THE DIRECTION OF MOVABILITY OF SAID ONE OF SAID OBJECTS; AN ELONGATED OPTICAL SEPARATOR MEMBER ARRANGED ON THE OTHER ONE OF SAID OBJECTS AND EXTENDING IN SAID DIRECTION OF MOVABILITY THEREOF, SAID SEPARATOR MEMBER BEING ARRANGED OPPOSITE SAID PROJECTOR MEANS AND THEREFORE MOVABLE ACROSS SAID BEAM OF LIGHT FOR BEING ILLUMINATED ON ONE SIDE AND COMPRISING A SERIES OF LONGITUDINALLY ALIGNED IDENTICAL PROJECTIONS HAVING EACH A TRIANGULAR PROFILE LOCATED IN THE PLANE COMMON TO SAID DIRECTION OF MOVABILITY AND TO SAID BEAM OF LIGHT AND THEREBY SEPARATING SAID BEAM OF LIGHT INTO TWO BEAM POR-
References Cited (Backward Citations)
US1897850A
Cited
US2304814A
Cited
US2286820A
Cited
US2692527A
Cited
US2810315A
Cited
US2817691A
Cited
US2886718A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |