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US3814341A Expired / Lapsed US ⏱️ 0.0 years remaining

Yarn winding apparatus

Assignee: EIDP Inc
•
Filing: 1973-09-07
•
Granted: 1974-06-04
•
Expires: 1993-09-07
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Abstract

Abstract A yarn windup having two abutting yarn package supports per chuck in which two yarns are held near the abutting ends of the supports by retractable guides until the yarns are cut by a cutter. Transfer tails are then wound as the retractable guides are moved away from yarn engagement releasing the yarn into traverse guides to begin normal traverse winding. Optionally, the retractable guides are shaped so that during release of the yarn, they momentarily move the yarn slightly toward the abutting ends of the tubes to cross over and trap the cut yarn ends.

Inventors

  • 👤 F Dickson
  • 👤 W Williams

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 22:11
CPC Classifications
B; B65; B65H; B65H54/00; B65H54/02; B65H54/28; B65H54/34; B65H65/00; B65H2701/00; B65H2701/30; B65H2701/31

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 209 words
In a yarn winding apparatus including two surface driven tubular yarn package supports having abutting ends, a selfthreading traverse guide associated with each yarn support through which yarn passes and which move yarn axially of said supports in a normal stroke length as a package is wound, and means for collecting and disposing said yarn when not being wound into a package, a mechanism for initiating wraps simultaneously on adjacent ends of abutting supports which overlap a severed length adjacent its end, said mechanism comprising: a pair of fixed guides positioned above said traverse guides at equal distances from the vertical plane of the abutting support ends, each of said fixed guides being positioned within the stroke length of a corresponding traverse guide; a cutting means position beyond said supports in alignment with said plane; a pair of retractable guides positioned bEtween said fixed guides and said traverse guides at equal distances from said vertical plane between said plane and the end of said stroke length, said guides having yarn engaging slots opening toward and in proximal alignment with said cutting means; means mounting said retractable guides for simultaneous movement to and from a yarn engaging position and motive means coupled to said mounting means for imparting said movement.
Claim 2
Dependent Claim 209 words
In a yarn winding apparatus including two surface driven tubular yarn package supports having abutting ends, a selfthreading traverse guide associated with each yarn support through which yarn passes and which move yarn axially of said supports in a normal stroke length as a package is wound, and means for collecting and disposing said yarn when not being wound into a package, a mechanism for initiating wraps simultaneously on adjacent ends of abutting supports which overlap a severed length adjacent its end, said mechanism comprising: a pair of fixed guides positioned above said traverse guides at equal distances from the vertical plane of the abutting support ends, each of said fixed guides being positioned within the stroke length of a corresponding traverse guide; a cutting means position beyond said supports in alignment with said plane; a pair of retractable guides positioned bEtween said fixed guides and said traverse guides at equal distances from said vertical plane between said plane and the end of said stroke length, said guides having yarn engaging slots opening toward and in proximal alignment with said cutting means; means mounting said retractable guides for simultaneous movement to and from a yarn engaging position and motive means coupled to said mounting means for imparting said movement.
Claim 3
Dependent Claim 20 words
The mechanism as defined in claim 1, each of said slots having a yarn engaging surface inclined toward said plane.
Claim 4
Dependent Claim 40 words
The apparatus as defined in claim 1, wherein said motive means is a reversible pneumatic cylinder connected to a supply of pressurized gas, said cylinder having a piston connected to a rod, said retractable guides being connected to the rod.

References Cited (Backward Citations)

US3030039A Cited
US2998202A Cited
US3097804A Cited
US3166262A Cited
US3276704A Cited
US3488010A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-06-03 1977-12-03 1978-06-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-06-03 1981-12-03 1982-06-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-06-03 1985-12-03 1986-06-04 $7700.00 Window Closed / Lapsed

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