Patents by Inventor Sonke Larsen

Sonke Larsen 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: 4745844
    Abstract: A control block is made up of a plurality of directional valves which serve to actuate a plurality of hydraulic drives to which in some cases a different pressure is to be supplied. For this purpose two pressure-limiting valves adjustable to different pressures are provided, the valve adjustable to the lower pressure being connected to the last valve unit. This gives a simple construction and substantial freedom in the association of the drives.
    Type: Grant
    Filed: February 11, 1987
    Date of Patent: May 24, 1988
    Assignee: Mannesmann Rexroth GmbH
    Inventor: Sonke Larsen