US3077656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric devices for indicating the lay of weft threads and for controlling weft straighteners
Assignee: Individual
•
Filing: 1959-04-24
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Granted: 1963-02-19
•
Expires: 1979-04-24
Abstract
No abstract record available.
Inventors
- 👤 Mahlo Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:03
CPC Classifications
D; D06; D06H; D06H3/00; D06H3/12; D06H3/125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
IN AN ARRANGEMENT FOR OPTICALLY SENSING THE LAY OF WEFT THREADS IN MOVING WOVEN FABRIC; THE COMBINATION OF AT LEAST ONE LIGHT SOURCE DISPOSED AT ONE SIDE OF THE MOVING FABRIC, A PAIR OF PHOTOELECTRIC CELLS FOR EACH LIGHT SOURCE DISPOSED AT THE OPPOSITE SIDE OF THE MOVING FABRIC, SAID PHOTOELECTRIC CELLS OF SAID PAIR EACH HAVING A SLOTSHAPED OPENING ADMITTING LIGHT FROM SAID SOURCE TO THE RESPECTIVE CELLS FOLLOWING PASSAGE OF THE LIGHT BETWEEN THE WEFT THREADS OF THE MOVING FABRIC SO THAT EACH CELL IS INTERMITTENTLY ENERGIZED TO GENERATE VOLTAGES HAVING A MAXIMUM AMPLITUDE WHEN THE WEFT THREADS OF THE MOV-
Claim 2
Dependent Claim
103 words
IN AN ARRANGEMENT FOR OPTICALLY SENSING THE LAY OF WEFT THREADS IN MOVING WOVEN FABRIC; THE COMBINATION OF AT LEAST ONE LIGHT SOURCE DISPOSED AT ONE SIDE OF THE MOVING FABRIC, A PAIR OF PHOTOELECTRIC CELLS FOR EACH LIGHT SOURCE DISPOSED AT THE OPPOSITE SIDE OF THE MOVING FABRIC, SAID PHOTOELECTRIC CELLS OF SAID PAIR EACH HAVING A SLOTSHAPED OPENING ADMITTING LIGHT FROM SAID SOURCE TO THE RESPECTIVE CELLS FOLLOWING PASSAGE OF THE LIGHT BETWEEN THE WEFT THREADS OF THE MOVING FABRIC SO THAT EACH CELL IS INTERMITTENTLY ENERGIZED TO GENERATE VOLTAGES HAVING A MAXIMUM AMPLITUDE WHEN THE WEFT THREADS OF THE MOV-
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) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |