Patents by Inventor Tace Parley Hart

Tace Parley Hart 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).

  • Self aligning mud saver valve seat
    Patent number: 8490720
    Abstract: A mud saver valve is constructed so that the valve seats self align preventing the loss of fluid when the valve is in the closed position. One or both seats can skew their longitudinal axes to get the alignment.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: July 23, 2013
    Inventors: Tace Parley Hart, Albert Augustus Mullins
  • Self Aligning Mud Saver Valve Seat
    Publication number: 20110036586
    Abstract: A mud saver valve is constructed so that the valve seats self align preventing the loss of fluid when the valve is in the closed position. One or both seats can skew their longitudinal axes to get the alignment.
    Type: Application
    Filed: August 13, 2010
    Publication date: February 17, 2011
    Inventors: Tace Parley Hart, Albert Augustus Mullins