Patents by Inventor Rick R. York

Rick R. York 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).

  • Hydraulic swivel connector, excavating machine and method of use
    Patent number: 6146082
    Abstract: The invention provides a hydraulic swivel connector, excavating machine having hydraulic swivel connectors and methods of use thereof. The hydraulic swivel connector, comprises, a first and second hydraulic swivel cylinder each having an extendable arm, a swivel connector frame, a swivel connector rotatable member. One end of each hydraulic swivel cylinder is connected to the swivel connector frame. The other end of each hydraulic swivel cylinder is connected to the swivel connector rotatable member. Extension of one hydraulic swivel cylinder arm forces the swivel connector rotatable member to rotate in a first direction, and extension of the other hydraulic swivel cylinder arm forces the swivel connector rotatable member to rotate in a second direction.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: November 14, 2000
    Inventor: Rick R. York