Patents by Inventor Heinrich Kreh

Heinrich Kreh 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).

  • Master cylinder
    Patent number: 5878575
    Abstract: A master cylinder includes a housing and a piston movable therein, which is sealed relative to a pressure chamber by way of a sealing element fixed on the housing. The pressure chamber is connectable to an unpressurized supply chamber by at least one transverse bore provided in the piston, wherein the transverse bore has a slot-shaped configuration and opens into at least one groove provided on the outer surface of the piston.
    Type: Grant
    Filed: October 21, 1997
    Date of Patent: March 9, 1999
    Assignee: ITT Manufacturing Enterprises Inc.
    Inventors: Heinrich Kreh, Harald Konig