Patents by Inventor William J. Lyttle

William J. Lyttle has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for controlling the operation of a spiked sheet advancing relatively to a compactable mass
    Patent number: 4827424
    Abstract: The operation of a spiked sheet 15 advancing relatively to a compactable mass 14 e.g. of textile fibres in a bin emptying arrangement in a blending line is controlled by measuring the resistance through compaction of the mass 14 to said relative advance and adjusting the operation so as to maintain the resistance substantially constant. The resistance can be measured e.g. by measuring the torque reaction on the motor 24 powering the spiked sheet.
    Type: Grant
    Filed: August 8, 1986
    Date of Patent: May 2, 1989
    Assignee: Haigh-Chadwick Limited
    Inventors: William J. Lyttle, Stephen Kitchen