Johns Manville

John Joseph Dembowski

Randall Clark Bascom

Russell Donovan Arterburn

Douglas James Kempski

Larry Edward Howard

A method and apparatus for chopping long unwound items like fiber, fiber strands, yarn, etc. The chopper has a backup roll, a blade roll and a biasing system for forcing the backup roll and the blade roll together at a desired force during set up and operation. The biasing system contains a mechanism such as a slip clutch or a limited torque stepping motor for maintaining a substantially constant biasing force at set up and during operation while allowing the rolls to separate slightly to pass a temporary thicker feed without recoil that currently shortens blade and backup roll working layer life.

Method of controling biasing force before and during chopping

Fiber chopper and method of chopping

An apparatus for receiving and automatically moving a moving strand of fibers from a starting position to any one of a plurality of predetermined positions in a multi-grooved separator roll is disclosed. This apparatus is particularly in processes of making continuous fiber products from molten material and replaces a manual operation that presented safety problems.

Method of positioning a pulled fiber strand

Strand positioning apparatus

Growing community of inventors

Athens, TN, United States of America

John Joseph Dembowski