Patents by Inventor Rick W. Schultz

Rick W. Schultz 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: 5222834
    Abstract: A collapsible safety prop for supporting a waterway dam gate comprising first and second links, each of which has a longitudinal axis and an inner and outer end. The inner ends of the links are provided with a lateral member extending laterally from the longitudinal axis of the links. Each of the lateral members further includes a pivot substantially offset from the longitudinal axis of the links. A pivot pin connects each of the pivots and thereby interconnects the two links. Shear engaging mechanism are provided on the inner ends of the links and positioned on the longitudinal axis of the links and spaced a substantial distance from the pivot pin. Shear mechanism for connecting the shear engaging means are provided and positioned on the inner ends of the links for normally locking the prop links against pivotal movement. The outer ends of each of the links are also provided with pivot mechanism.
    Type: Grant
    Filed: July 2, 1992
    Date of Patent: June 29, 1993
    Assignee: The United States of America as represented by the U.S. Army Corps of Engineers
    Inventor: Rick W. Schultz
  • Patent number: 5178490
    Abstract: In one embodiment, the invention is directed to a hydraulic lifting module hich is removable as a unit from a wicket dam. A hydraulic cylinder is pivotably mounted about an axis in the frame and extends outwardly of an apertured cover between extreme positions. A slidable shield is secured and is pivotable with a portion of the cylinder extending out of the cover for closing the aperture and the extreme positions of the cylinder. A flexible boot interior of the frame renders the housing water and silt resistant.
    Type: Grant
    Filed: July 2, 1992
    Date of Patent: January 12, 1993
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Ralph B. Snowberger, Rick W. Schultz