Wrap detection device

US5964391A · kind A · utility

Assignee

• E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

• Terry Robin Cain · Milford, US
• Edward J. Delawski · Wilmington, US
• Donald William Gillespie · Seaford, US
• Melvin H. Johnson · Chadds Ford, US
• John C. Modla · Hockessin, US
• Jerry F. Potter · Seaford, US
• Jon Stanley · Seaford, US

Key dates

• Filing date: Oct 24, 1997
• Grant date: Oct 12, 1999
• Expiry date: Oct 24, 2017

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2701/38
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

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.