Spinnerets, breaker plates and die bodies having contoured surfaces with no flat surfaces between adjacent holes

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12188155
APP PUB NO 20210332499A1
SERIAL NO

17217155

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Abstract

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A spinneret for extruding fibers includes a plate having a proximal surface and a distal surface. The spinneret includes a plurality of holes formed in the plate that extend between the proximal surface and the distal surface of the plate. The holes are spaced from one another, and each hole has a distal end that extends along a central axis. The spinneret has a plurality of contoured entrance zones formed in the proximal surface of the plate, whereby each contoured entrance zone is associated with one of the holes. Each contoured entrance zone extends distally from the proximal surface of the plate to a proximal end of the hole associated therewith. Each contoured entrance zone has substantially no planar or flat surfaces normal to the direction of the central axis of the distal end of the hole associated therewith.

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Patent Owner(s)

Patent OwnerAddress
ETHICON INC1000 U S ROUTE 202 RARITAN NJ 08869

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Gaoyuan Hillsborough, US 7 145
Collier, John Franklin Lakes, US 26 946
Cook, Glenn R Clinton, US 4 11
Guo, Jianxin Livingston, US 51 337
Vliet,, Jr Joseph Richard Califon, US 2 3
Zhou, Jianguo Bethlehem, US 37 540

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