Patents by Inventor Ronald Harold Richardson

Ronald Harold Richardson 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).

  • Patent number: 5909892
    Abstract: A self aligning hitch arrangement for attachment to the drawbar of a towing vehicle for lifting and aligning a trailer tongue into place on a towing ball includes a mounting plate attachable to the drawbar and having side members which support a horizontal transverse pivot in front of (i.e. on the vehicle side of) the ball. A ramp member supported by the pivot has a ramp plate with its front edge spaced behind the ball member, and is pivotable between a raised position in which the plate lies at a suitable angle for lifting the trailer tongue onto the ball, and a lowered position in which the plate lies at a steeper angle and allows the tongue to fall onto the ball. The ramp member also has diverging flanges to guide the trailer tongue laterally into position over the ball.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: June 8, 1999
    Inventor: Ronald Harold Richardson
  • Patent number: 5842427
    Abstract: Apparatus suitable for mounting on a tractor, and capable of providing opposed movement to a pair of cooperating implements suitable for digging or lifting. The apparatus has a frame with an upper central region and two laterally spaced lower regions, and two movable arms, each capable of holding one of the implements. Each arm has an inner end pivoted to the frame at one of the lower regions by a pivot which restricts movement of the arm, relative to the frame, to an inclined pivot plane, the pivot planes being situated to both slope downwardly and inwardly and meet at a line of intersection which is below and symmetrically between the pivots. A linkage arrangement is provided connecting the central upper region of the frame to each arm, and power cylinders are provided for moving the arms in their inclined pivot planes.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: December 1, 1998
    Inventors: James Edward Hunter, Ronald Harold Richardson