US4407767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drawing and beaming a weftless warp of yarns
Assignee: Monsanto Co
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Filing: 1982-05-20
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Granted: 1983-10-04
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Expires: 2002-05-20
Abstract
Abstract A weftless warp of yarns being drawn and wound on a beam is fed through a tension detector, located prior to the drawing step and responsive to tension in any of the yarns equalling a predetermined non-zero level, for stopping the process. This prevents damage to or breakage of a yarn which might have become snagged in the warp source.
Inventors
- 👤 Douglas K. Seaborn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:29
CPC Classifications
D; D02; D02H; D02H5/00; D02H13/00; D02H13/22; D02H13/26
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
100 words
A beaming process, comprising sequentially: a. feeding a weftless warp sheet of spun yarns from a source through a tension detector; b. drawing said warp sheet; and c. winding said warp sheet onto a beam; d. said tension detector comprising: (1) a yarn accumulator for continuously storing a quantity of each yarn constituting said warp sheet; and (2) means, responsive to occurrence of tension in any given one of said yarns equal to a predetermined level, for releasing the stored quantity of said given one yarn whereby the tension in said given one yarn does not exceed said predetermined level.
Claim 2
Dependent Claim
100 words
A beaming process, comprising sequentially: a. feeding a weftless warp sheet of spun yarns from a source through a tension detector; b. drawing said warp sheet; and c. winding said warp sheet onto a beam; d. said tension detector comprising: (1) a yarn accumulator for continuously storing a quantity of each yarn constituting said warp sheet; and (2) means, responsive to occurrence of tension in any given one of said yarns equal to a predetermined level, for releasing the stored quantity of said given one yarn whereby the tension in said given one yarn does not exceed said predetermined level.
Claim 3
Dependent Claim
15 words
The process defined in claim 1, wherein said warp sheet is slashed while being drawn.
References Cited (Backward Citations)
US3351296A
Cited
US3612791A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-03 | 1987-04-04 | 1987-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-03 | 1991-04-04 | 1991-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-03 | 1995-04-04 | 1995-10-04 | $7700.00 | Window Closed / Lapsed |