Patents by Inventor Lawrence A. Shatuck

Lawrence A. Shatuck 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: 4822488
    Abstract: The subject valve discharge system comprises a discharge valve member that includes a valve closure segment at an inlet end thereof for insertion in the discharge valve housing. It further includes valve connecting means at a discharge end thereof. The respective discharge valve member and the discharge valve housing together define a gap therebetween. The discharge elbow defines a flow passage therethrough and includes elbow inlet and outlet ends. The elbow inlet end includes elbow connecting means. Discharge valve mounting means are connected to the respective discharge valve member and the elbow connecting means, respectively. The valve mounting means is self-adjustable during use for axial movement in response to the axial movement of the discharge system which is responsive to the axial movement of the rotary drum filter. In this way, the gap setting is maintained at a substantially constant, fixed clearance.
    Type: Grant
    Filed: October 19, 1988
    Date of Patent: April 18, 1989
    Assignee: LaValley Industries, Inc.
    Inventor: Lawrence A. Shatuck
  • Patent number: 4422536
    Abstract: A power shift transmission control system includes a modulation control valve connected for regulating the pressure engagement of forward and reverse direction-friction devices and including a pressure-regulating spring which is adjusted by means of a pressure boost piston. A feedback conduit conveys fluid pressure from the forward or reverse direction-friction device to the chamber, and the rate at which this pressure is conveyed to the chamber is controlled by an orifice-selector valve which is operative to selectively place various sized orifices in the feedback conduit in response to the speed-selector valve being placed in the various speed positions.
    Type: Grant
    Filed: May 8, 1981
    Date of Patent: December 27, 1983
    Assignee: Deere & Company
    Inventor: Lawrence A. Shatuck