Patents by Inventor John T. Halsey

John T. Halsey 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).

  • Nut tightening system
    Patent number: 9255599
    Abstract: A system for applying rotational torque to a fastener on a fastening member (such as a threaded rod) to maintain the tight fastening. One specific embodiment of the system uses a recoil spring to apply such torque directly to the fastener; the system enables continued tightening of the fastener long after the initial fastening occurs.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: February 9, 2016
    Inventor: John T. Halsey
  • Nut tightening system
    Patent number: 8608421
    Abstract: A device for applying rotational torque to a fastener (such as a nut) on a fastening member (such as a threaded rod) to maintain the tight fastening. One specific embodiment of the device uses a recoil spring to apply such torque directly to the fastener; the device enables continued tightening of the fastener long after the initial fastening occurs.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: December 17, 2013
    Inventor: John T. Halsey