Patent US3108727A successfully refreshed from Google Patents.
US3108727A
Expired / Lapsed
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Position-sensing apparatus
Assignee: Hazeltine Research Inc
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Filing: 1961-08-21
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Granted: 1963-10-29
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Expires: 1981-08-21
Abstract
No abstract record available.
Inventors
- 👤 Richard J Farber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:27
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/02; B65H23/0204; B65H23/0216; B65H2557/00; B65H2557/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
AN ALIGNMENT-CORRECTING SYSTEM FOR MAINTAINING STOCK MOVING ALONG A GIVEN AXIS IN CORRECT ALIGNMENT ALONG A TRANSVERSE AXIS, COMPRISING: MEANS FOR DIRECTING ENERGY ACROSS AN EDGE OF THE STOCK, SAID EDGE BEING ONE WHICH IS EFFECTIVELY PARALLEL TO SAID GIVEN AXIS OF MOVEMENT, A PORTION OF SAID ENERGY BEING INCIDENT ON THE STOCK AND ANOTHER PORTION THEREOF EXTENDING BEYOND THE EDGE OF THE STOCK; MEANS RESPONSIVE TO AT LEAST ONE OF SAID PORTIONS OF ENERGY FOR PRODUCING THEREFROM A SIGNAL HAVING A PREDETERMINED HARMONIC COMPONENT ONLY WHEN THE STOCK IS OUT OF ALIGNMENT; MEANS FOR DERIVING AN ERROR SIGNAL FROM SAID HARMONIC COMPONENT; AND MEANS RESPONSIVE TO SAID ERROR SIGNAL FOR REPOSITIONING THE STOCK ALONG SAID
Claim 2
Dependent Claim
116 words
AN ALIGNMENT-CORRECTING SYSTEM FOR MAINTAINING STOCK MOVING ALONG A GIVEN AXIS IN CORRECT ALIGNMENT ALONG A TRANSVERSE AXIS, COMPRISING: MEANS FOR DIRECTING ENERGY ACROSS AN EDGE OF THE STOCK, SAID EDGE BEING ONE WHICH IS EFFECTIVELY PARALLEL TO SAID GIVEN AXIS OF MOVEMENT, A PORTION OF SAID ENERGY BEING INCIDENT ON THE STOCK AND ANOTHER PORTION THEREOF EXTENDING BEYOND THE EDGE OF THE STOCK; MEANS RESPONSIVE TO AT LEAST ONE OF SAID PORTIONS OF ENERGY FOR PRODUCING THEREFROM A SIGNAL HAVING A PREDETERMINED HARMONIC COMPONENT ONLY WHEN THE STOCK IS OUT OF ALIGNMENT; MEANS FOR DERIVING AN ERROR SIGNAL FROM SAID HARMONIC COMPONENT; AND MEANS RESPONSIVE TO SAID ERROR SIGNAL FOR REPOSITIONING THE STOCK ALONG SAID
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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |