Patents by Inventor Grenville M. Hill

Grenville M. Hill 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).

  • Patent number: 4884764
    Abstract: This invention relates to yarn winding apparatus having a split traverse yarn guide. The yarning winding apparatus includes a mechanism to control the position of the traverse yarn guide relative to the axis of the package being wound so as to maintain a small gap between the traverse guide and the package surface during package formation. No part of the mechanism contacts the package surface.
    Type: Grant
    Filed: August 24, 1988
    Date of Patent: December 5, 1989
    Assignee: James Mackie & Sons Limited
    Inventor: Grenville M. Hill
  • Patent number: 4784341
    Abstract: A textile yarn winding apparatus for winding a continuously produced yarn, said apparatus being of the type having spindles carrying two axially aligned flanged bobbins and a yarn guide which is reciprocated along the length of one or other of the flanged bobbins so as to lay yarn wherein the yarn guide may be moved from its path along the length of one bobbin to a corresponding path along the length of a second bobbin when it is desired to transfer the winding from one bobbin to another, whereby the take-up of the yarn continues without interruption, the yarn being led from the surface of the completed bobbin over the adjacent flanges of the completed and empty bobbins to the barrel of the empty bobbin thus connecting the two.
    Type: Grant
    Filed: June 30, 1987
    Date of Patent: November 15, 1988
    Assignee: James Mackie & Sons Ltd.
    Inventors: Grenville M. Hill, William J. McDonald