E.i. Dupont De Nemours and Company

Terry Robin Cain

Melvin H Johnson

Maurice C Todd

Jerry F Potter

Edward J Delawski

Jon Ovitt Stanley

Dennis Leslie Frost

Donald William Gillespie

John Christopher Modla

The present invention is directed to: a non-interlacing expirating yarn bulker comprising a body having an enclosed yarn passage extending therethrough. The yarn passage includes an inlet region, a throat region and an expanding region. A single pressurized fluid channel extends through the body and intersects with the yarn passage in the throat region. Cross sectional areas at certain defined locations in the yarn passage exhibit predetermined relationships. In addition, the inlet region and the pressurized fluid channel both are symmetrical about a common reference plane of symmetry;

Single impingement bulking jet

A sensor for use with a yarn processing apparatus that includes at least one roll over at least a portion of the surface of which at least one yarn is conveyed is operative to generate an accumulation signal representative of a wrap accumulation of yarn circumferentially around the surface of the roll.

Wrap detection device

Growing community of inventors

Greenwood, DE, United States of America

Terry Robin Cain