Patents by Inventor Allen T. Joyce

Allen T. Joyce 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).

  • Spreader with removable material transportation mechanism
    Patent number: 10195976
    Abstract: A spreader assembly may include a hopper configured for receiving a spreadable material, a removable cartridge configured for sliding engagement with the hopper and having a material transportation mechanism configured for receiving the spreadable material from the hopper, and a spreader configured for receiving the spreadable material from the material transportation mechanism and spreading the spreadable material onto a target surface. One of the hopper and the cartridge may include a roller having a roller surface, and the other of the hopper and the cartridge may include a bearing surface configured for rolling engagement with the roller surface. The cartridge may have one or more pull bars to facilitate removal of the cartridge from the hopper. Related methods are described.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: February 5, 2019
    Assignee: Alamo Group Inc.
    Inventors: Spencer J. Null, Vladimir Feldman, Douglas E. Metcalf, Robert W. Wood, Randal M. Wolf, Allen T. Joyce
  • Casing centralizer
    Patent number: 4875524
    Abstract: A semi-rigid floating spring type centralizer for use in deviated, highly deviated or horizontal well bores, the centralizer comprising a cylindrical tubular housing having a plurality of floating centralizer springs retained thereon.
    Type: Grant
    Filed: September 29, 1988
    Date of Patent: October 24, 1989
    Assignee: Halliburton Company
    Inventors: Billie J. Bradley, Richard L. Giroux, Allen T. Joyce