US3355591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric device for determining the length or position of a sample using scanner and rotating beam-chopper
Assignee: Individual
•
Filing: 1964-10-16
•
Granted: 1967-11-28
•
Expires: 1984-10-16
Abstract
No abstract record available.
Inventors
- 👤 Pfister Marcel Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:10
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/26; G01B; G01B11/00; G01B11/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN AN APPARATUS FOR DETERMINING THE POSITION OR LENGTH OF A RADIANT ENERGY EMITTING OBJECT WHEREIN A FIELD OF VIEW, INCLUDING A PART OF THE OBJECT, IS SCANNED BY A MOVING SCANNING MEANS DRIVEN BY POWER MEANS AT A GIVEN RATE WITH THE RADIANT ENERGY BEAM RECEIVED BY THE SCANNING MEANS TRAVERSING A PATH TO A RADIANT ENERGY DETECTOR, THE IMPROVEMENT COMPRISING: POWER DRIVEN BEAM CHOPPING MEANS INTERPOSED IN SAID PATH TO PERIODICALLY BREAK THE BEAM, SAID BEAM CHOPPING MEANS BEING CONNECTED TO SAID POWER MEANS TO BREAK THE BEAM AT A RATE WHICH IS A FUNCTION OF SAID GIVEN RATE AND IN PREDETERMINED PHASE RELATIONSHIP WITH RESPECT THERETO, WHEREBY THE DETECTOR PRODUCES ELECTRICAL IMPULSES TO THE EXTENT THAT SAID OBJECT IS IN SAID FIELD; AND ACTUATED MEANS CONNECTED TO THE DETECTOR.
Claim 2
Dependent Claim
132 words
IN AN APPARATUS FOR DETERMINING THE POSITION OR LENGTH OF A RADIANT ENERGY EMITTING OBJECT WHEREIN A FIELD OF VIEW, INCLUDING A PART OF THE OBJECT, IS SCANNED BY A MOVING SCANNING MEANS DRIVEN BY POWER MEANS AT A GIVEN RATE WITH THE RADIANT ENERGY BEAM RECEIVED BY THE SCANNING MEANS TRAVERSING A PATH TO A RADIANT ENERGY DETECTOR, THE IMPROVEMENT COMPRISING: POWER DRIVEN BEAM CHOPPING MEANS INTERPOSED IN SAID PATH TO PERIODICALLY BREAK THE BEAM, SAID BEAM CHOPPING MEANS BEING CONNECTED TO SAID POWER MEANS TO BREAK THE BEAM AT A RATE WHICH IS A FUNCTION OF SAID GIVEN RATE AND IN PREDETERMINED PHASE RELATIONSHIP WITH RESPECT THERETO, WHEREBY THE DETECTOR PRODUCES ELECTRICAL IMPULSES TO THE EXTENT THAT SAID OBJECT IS IN SAID FIELD; AND ACTUATED MEANS CONNECTED TO THE DETECTOR.
References Cited (Backward Citations)
US3066226A
Cited
US3094623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |