US3738124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knitting machine stop motion
Assignee: Milliken Research Corp
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Filing: 1971-04-08
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Granted: 1973-06-12
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Expires: 1991-04-08
Abstract
Abstract Method and apparatus to detect a yarn break in a knitting machine by blowing the broken end from the warp sheet into the view of a photoelectric detection system which will stop the knitting machine when the broken end is detected.
Inventors
- 👤 L Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:53
CPC Classifications
D; D04; D04B; D04B15/00; D04B15/94
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
Apparatus for detecting broken yarns in a yarn sheet of a plurality of warp yarns from a warp beam of a knitting machine comprising: a warp beam, a plurality of knitting needles, means to supply yarn from said warp beam to said needles, a U-shaped support member supported between said warp beam and said needles, said support member being supported adjacent said warp beam and having an air manifold supported thereby, a sley bar mounted above and below said air manifold to maintain a plurality of yarns separate and parallel to one another, means mounting a photoelectric detection means in front of said air manifold and means supplying air under pressure to said air manifold to blow a broken yarn end into the path of a light beam from said photoelectric detection means.
Claim 2
Dependent Claim
133 words
Apparatus for detecting broken yarns in a yarn sheet of a plurality of warp yarns from a warp beam of a knitting machine comprising: a warp beam, a plurality of knitting needles, means to supply yarn from said warp beam to said needles, a U-shaped support member supported between said warp beam and said needles, said support member being supported adjacent said warp beam and having an air manifold supported thereby, a sley bar mounted above and below said air manifold to maintain a plurality of yarns separate and parallel to one another, means mounting a photoelectric detection means in front of said air manifold and means supplying air under pressure to said air manifold to blow a broken yarn end into the path of a light beam from said photoelectric detection means.
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) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |