Patents by Inventor Chris Van Den Berg

Chris Van Den Berg 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).

  • Pressure balanced hydraulic pumps
    Patent number: 6533556
    Abstract: A hydraulic pump has a pair of inlets each with a pair of outlets. The inlets and outlets are arranged to balance the forces on the motor. The flow from the outlets of each pair may be combined to maximize flow or separated to reduce power consumption by recirculating the flow from the outlet to the inlet.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: March 18, 2003
    Inventors: Eric Cozens, Chris Van Den Berg, Richard Muizelaar