US3232164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical system for detecting and measuring angular movements
Assignee: International Business Machines Corp
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Filing: 1961-05-24
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Granted: 1966-02-01
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Expires: 1981-05-24
Abstract
No abstract record available.
Inventors
- 👤 Richard W Kern
- 👤 Frederick P Longwell
- 👤 Robert A Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:49
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/26; G01D5/28; G01D5/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
204 words
AN APPARATUS FOR DETERMINING SMALL PHYSICAL MOVEMENTS, COMPRISING: A FIRST REFLECTIVE MEMBER MOUNTED FOR PIVOTAL MOVEMENT ABOUT A POINT ADJACENT AN EXTREMITY AND IN A DIRECTION SUBSTANTIALLY NORMAL TO THE REFLECTIVE SURFACE, SAID SMALL MOVEMENTS BEING DIRECTLY APPPLIED TO SAID REFLECTIVE MEMBER AT POINT REMOTE FROM SAID PIVOTAL POINT; A SECOND REFLECTIVE MEMBER FIXEDLY MOUNTED ADJACENT SAID FIRST REFLECTIVE MEMBER WITH THE REFLECTIVE PORTIONS OF EACH MEMBER IN A GENERALLY OPPOSED RELATION; A LIGHT BEAM DIRECTED ONTO THE REFLECTIVE PORTION OF SAID FIRST REFLECTIVE MEMBER IN THE REGION ADJACENT THE PIVOTAL POINT AND AT SUCH AN ANGLE THAT MULTIPLE REFLECTIONS OF SAID BEAM OCCUR BETWEEN THE REFLECTIVE PORTIONS TO PROVIDE A REFLECTED AND ANGULARLY MAGNIFIED BEAM AT A POINT REMOTE FROM SAID PIVOTAL POINT; A THIRD REFLECTIVE MEMBER HAVING A CONVEX REFLEXTIVE PORTION, SAID CONVEX REFLECTIVE PORTION BEING IN THE OPTICAL PATH OF THE BEAM AFTER SAID BEAM EMERGES FROM THE PORTIONS OF SAID FIRST AND SECOND MEMBERS TO PROVIDE A FINALLY REFLECTED AND FURTHER ANGULARLY MAGNIFIED BEAM; AND MEANS INTERCEPTING SAID FINALLY REFLECTED BEAM FOR INDICATING THE POSITION OF SAID BEAM AND RELATING CHANGES IN POSITION OF SAID FINALLY REFLECTED BEAM FROM A REFERENCE POSITION TO THE MOVEMENTS OF SAID FIRST REFLECTIVE SURFACE.
Claim 2
Independent Claim
204 words
AN APPARATUS FOR DETERMINING SMALL PHYSICAL MOVEMENTS, COMPRISING: A FIRST REFLECTIVE MEMBER MOUNTED FOR PIVOTAL MOVEMENT ABOUT A POINT ADJACENT AN EXTREMITY AND IN A DIRECTION SUBSTANTIALLY NORMAL TO THE REFLECTIVE SURFACE, SAID SMALL MOVEMENTS BEING DIRECTLY APPPLIED TO SAID REFLECTIVE MEMBER AT POINT REMOTE FROM SAID PIVOTAL POINT; A SECOND REFLECTIVE MEMBER FIXEDLY MOUNTED ADJACENT SAID FIRST REFLECTIVE MEMBER WITH THE REFLECTIVE PORTIONS OF EACH MEMBER IN A GENERALLY OPPOSED RELATION; A LIGHT BEAM DIRECTED ONTO THE REFLECTIVE PORTION OF SAID FIRST REFLECTIVE MEMBER IN THE REGION ADJACENT THE PIVOTAL POINT AND AT SUCH AN ANGLE THAT MULTIPLE REFLECTIONS OF SAID BEAM OCCUR BETWEEN THE REFLECTIVE PORTIONS TO PROVIDE A REFLECTED AND ANGULARLY MAGNIFIED BEAM AT A POINT REMOTE FROM SAID PIVOTAL POINT; A THIRD REFLECTIVE MEMBER HAVING A CONVEX REFLEXTIVE PORTION, SAID CONVEX REFLECTIVE PORTION BEING IN THE OPTICAL PATH OF THE BEAM AFTER SAID BEAM EMERGES FROM THE PORTIONS OF SAID FIRST AND SECOND MEMBERS TO PROVIDE A FINALLY REFLECTED AND FURTHER ANGULARLY MAGNIFIED BEAM; AND MEANS INTERCEPTING SAID FINALLY REFLECTED BEAM FOR INDICATING THE POSITION OF SAID BEAM AND RELATING CHANGES IN POSITION OF SAID FINALLY REFLECTED BEAM FROM A REFERENCE POSITION TO THE MOVEMENTS OF SAID FIRST REFLECTIVE SURFACE.
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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |