US 11,814,262 B2
Yarn carrier tubes
Brian P. Couchey, Inman, SC (US); and Edmond Fratianni, Old Chatham, NY (US)
Assigned to SONOCO DEVELOPMENT, INC., Hartsville, SC (US)
Filed by Sonoco Development, Inc., Hartsville, SC (US)
Filed on Feb. 1, 2022, as Appl. No. 17/590,294.
Application 17/590,294 is a continuation of application No. 17/010,189, filed on Sep. 2, 2020, granted, now 11,267,672.
Prior Publication US 2022/0153550 A1, May 19, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B65H 75/28 (2006.01); B65H 65/00 (2006.01)
CPC B65H 75/28 (2013.01) [B65H 65/00 (2013.01); B65H 2701/31 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A reusable yarn carrier tube for winding yarns of various thicknesses thereon at high speeds as the carrier tube is rotated in a rotational winding direction, the carrier tube comprising:
a circumferential wall; and
a pick-up groove formed into and extending along the azimuthal direction of the circumferential wall, the pick-up groove having a sidewall, wherein the pick-up groove comprises:
a plurality of teeth projecting from the sidewall of the pick-up groove toward a central azimuthal axis of the pick-up groove,
wherein the distance between the teeth decreases as measured along the central azimuthal axis of the pick-up groove.
 
18. A reusable yarn carrier tube for winding yarns of various thicknesses thereon at high speeds as the carrier tube is rotated in a rotational winding direction, the carrier tube comprising:
a hollow cylindrical wall; and
a pick-up groove formed into the cylindrical wall and extending along the azimuthal direction of the cylindrical wall, the pick-up groove having at least a first sidewall and a second sidewall, wherein the pick-up groove comprises:
a plurality of teeth projecting from the first sidewall and second sidewall of the pick-up groove toward a central azimuthal axis of the pick-up groove,
wherein the size of each of the plurality of teeth increases along the central azimuthal axis of the pick-up groove.