Patents by Inventor Russell K. Garnsworthy

Russell K. Garnsworthy 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: 4577458
    Abstract: Apparatus for splicing fibrous yarns includes structure having walls which define a chamber accessible to receive respective portions of the yarns and confine them adjacent one another. A gas stream may be directed into the chamber transversely to the yarn portions. Means is provided to maintain the gas stream entering the chamber, and preferably also the walls of the chamber, at an elevated temperature sufficient to produce an enhanced intermingling of fibres of the yarn portions which is effective to splice the yarns together. Also disclosed is the corresponding method of splicing fibrous yarns.
    Type: Grant
    Filed: October 15, 1984
    Date of Patent: March 25, 1986
    Assignee: Commonwealth Scientific and Industrial Research Organization
    Inventor: Russell K. Garnsworthy
  • Patent number: 4407117
    Abstract: A method for the splicing of two twisted staple yarns includes the steps of untwisting portions of each yarn, drafting these portions to form beards and retwisting the beards to form the splice. In one aspect of the invention, the untwisting is effected by rolling the yarns between two surfaces at nip point to rotate the yarns. In a second aspect, each yarn is gripped between nips at two locations (defining the respective yarn portion) which are spaced apart by a distance not significantly greater than the mean yarn fibre length; after untwisting, the beards are formed by drawing the ends of the yarns in opposite directions and longitudinally through the adjacent nips, whereby both ends of each beard are held between the nips defining the respective yarn portion. Also disclosed is apparatus for carrying out the respective aspects of the method.
    Type: Grant
    Filed: May 5, 1981
    Date of Patent: October 4, 1983
    Inventor: Russell K. Garnsworthy