Patents by Inventor Larry P. Gable

Larry P. Gable 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).

  • Electrohydraulic needle bar positioning apparatus for tufting machines
    Patent number: 4173192
    Abstract: A hydraulic actuator for transversely shifting the relative positions of a needle bar and the backing material in a tufting machine. An electronic pattern control mechanism drives the hydraulic actuator in response to the predetermined stitch pattern information in the electronic control circuit, which determines the amount of relative transverse shifting of the needle bar for each stitch location. A feedback mechanism associated with the hydraulic actuator creates a feedback signal which is compared with a pattern stitch command signal in order to produce an output signal for shifting the hydraulic actuator to a subsequent transverse needle bar position relative to the preceding needle bar position.
    Type: Grant
    Filed: October 26, 1977
    Date of Patent: November 6, 1979
    Assignee: Tuftco Corp.
    Inventors: Henry A. Schmidt, Larry P. Gable, Wallace W. Hammel, Jr.