Patents by Inventor Grant F. Carruth

Grant F. Carruth 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 for forming glass fibers
    Patent number: 4300929
    Abstract: A method of producing glass fibers is disclosed in which two streams of air are introduced into contact with the newly formed strands, one stream being introduced between the bushing and the size applicator and a second stream being introduced between the applicator and the gathering shoe.
    Type: Grant
    Filed: September 24, 1979
    Date of Patent: November 17, 1981
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Grant F. Carruth, Michael T. Pellegrin, Russell R. Felch, Donald R. Atkinson
  • Apparatus for removing long strands from chopped strand material
    Patent number: 4265151
    Abstract: Two horizontally spaced parallel shafts (27,28) are rotatably mounted on a base plate (24) having an aperture (27a) therethrough. Each shaft has a plurality of rows of radially extending fingers (36). A casing (38,40) around the fingered portions of the shafts has an inlet throat (44) for receiving shopped strands (16). The shafts are operatively connected by a pair of gears (32,34), and a motor (30) connected to one of the shafts drives the shafts to move the fingers upwardly between the shafts for breaking up clumps of strands and carrying strands of a desired chopped length around the outer sides of the shafts for exit through the aperture. Excessively long strands become wrapped around one or the other of the shafts.
    Type: Grant
    Filed: July 31, 1979
    Date of Patent: May 5, 1981
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Grant F. Carruth, Fred S. Coffey, Ray M. Fulmer