Patents by Inventor William A. Tattersall

William A. Tattersall 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).

  • Friction spinning apparatus
    Patent number: 4660366
    Abstract: A friction spinning apparatus includes a yarn winder and a pair of friction spinning rollers of which one is perforated and provided with a suction slot which is opened and closed on rotation of a piecing lever, means being provided for interconnecting operation of the piecing lever with, on the one hand, restoration of the winding operation and, on the other hand, restoration of fibre feed to the nip between the two friction spinning rollers.Preferably the interconnecting means comprise a pair of cams on the drive shaft linked to the piecing lever and co-operable with respective switches to control drive to the fibre feed roller of the fibre-opening unit and also the package lift mechansim to initiate winding.
    Type: Grant
    Filed: October 2, 1985
    Date of Patent: April 28, 1987
    Assignee: Hollingsworth (UK) Limited
    Inventors: Michael Barrett, William A. Tattersall, Dennis O'Donnell
  • Water carbonation and enrichment apparatus unit
    Patent number: D1001567
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: October 17, 2023
    Inventors: James William Tattersall, Fabian Arun Ghoshal, Benjamin Alexander Beck