Patents by Inventor Manfred Grothe

Manfred Grothe 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: 5088580
    Abstract: A hydraulically acting damping element includes a main chamber and a compensation chamber. Two rigid end walls and a rubber-elastic circumferential wall surround one of the chambers. An elastic, pressure-stable bellows has ends and a circumference. The bellows is disposed concentrically inside the one chamber and rigidly joined to the end walls with the main chamber inside the bellows and the compensation chamber between the bellows and the circumferential wall. An over-flow circuit is formed on one of the ends of the bellows and extends over at least part of the circumference of the bellows for hydraulically connecting the main chamber and the compensation chamber.
    Type: Grant
    Filed: May 10, 1990
    Date of Patent: February 18, 1992
    Assignee: Metzeler GmbH
    Inventors: Manfred Grothe, Volker Hartel