Patents by Inventor Edward J. Ziegler

Edward J. Ziegler 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: 5916051
    Abstract: A hydraulic shift system for a four-wheel drive transfer case is disclosed. The hydraulic shift system includes a pump, a pressure regulator, an accumulator, a control valve, a range shift assembly, a mode shift assembly, and a shift actuator. The pump supplies hydraulic pressure to the accumulator which is in communication with the control valve. The shift actuator controls the delivery of hydraulic pressure from the control valve to the range shift assembly and the mode shift assembly in response to actuation by the vehicle operator of a mode select mechanism.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: June 29, 1999
    Assignee: New Venture Gear, Inc.
    Inventors: Carl D. Schleuder, Edward J. Ziegler
  • Patent number: 4196947
    Abstract: In a known four point contact rolling element bearing of the type used in low speed applications, one of the inner and outer races is provided with a single gap as well as a peripheral conical surface that corresponds with and is juxtaposed on a corresponding peripheral conical surface on one of at least two relatively adjustable but fixedly interconnected race retainer portions associated with the split race, with a plurality of shims between these race retainer portions permitting the adjustment of the axial spacing between the retainer portions and controlling the degree of deflection of the split race toward the other bearing race for preloading or taking up undesired bearing wear.
    Type: Grant
    Filed: February 22, 1978
    Date of Patent: April 8, 1980
    Assignee: Clark Equipment Company
    Inventor: Edward J. Ziegler