USH1100HExpiredUtility

Yarn bobbin

17
Individually held — no corporate assignee on recordPriority: Jul 12, 1991Filed: Jul 12, 1991Granted: Sep 1, 1992
Est. expiryJul 12, 2011(expired)· nominal 20-yr term from priority
Inventors:Mark Blue
B65H 75/26B65H 75/10B65H 2701/31
17
PatentIndex Score
0
Cited by
7
References
3
Claims

Abstract

A yarn package support tube for traverse wound packages has tapered recesses adjacent each end of the tube extending around the circumference of the tube. The recesses taper toward the center of the tube to provide a tapered surface at the yarn winding reversals.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. A yarn support tube for traverse wound yarn packages, said tube having tapered recesses extending around its circumference adjacent each of its ends, each recess being tapered toward the center of the support tube to provide a tapered surface at yarn winding reversals on the support tube, whereby as yarn is laid down in a reversal curve on said tapered surface, the normal component of yarn tension is greater than the transverse component of yarn tension causing the yarn to remain in place. 
     
     
       2. The yarn support tube of claim 1 wherein said tube is formed of paper. 
     
     
       3. The yarn support tube of claim 1 or 2 wherein said tapered recess is about 0.010 inch deep and about 5/8 inch wide.

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