Patents by Inventor Bruce Edwin Knuth

Bruce Edwin Knuth 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: 7343846
    Abstract: A hydraulic actuator is provided for supporting a load. The actuator includes a cylinder, a lower end closed by a base, and an annular side wall connected between the base and the upper wall. A piston is disposed partially within the cylinder, and includes a rod extending through the upper end of the cylinder, and a piston head that defines a hydraulic chamber with the base. A cylinder chamber is disposed between the base and the piston head and communicates with a fluid source and a fluid return to correspondingly extend and retract the piston. A support member is connected to the cylinder wall, and can be raised to support a tilt saddle member between the piston rod and the load after the piston has been extended.
    Type: Grant
    Filed: March 9, 2004
    Date of Patent: March 18, 2008
    Assignee: Actuant Corporation
    Inventors: Frantz D. Stanford, Jesus Salvador Gonzalez Sanz, Bruce Edwin Knuth