Patents by Inventor Michael W. Tappe

Michael W. Tappe 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).

  • Plastic stop valve and method for the production thereof
    Patent number: 6637455
    Abstract: A method for the production of a stop valve for pipes, with a housing which consists of plastic, has two pipe connectors and in which a blocking element, which can be adjusted by an actuation unit between a flow position and a blocking position, is mounted at least by means of bearing rings and seals. This method includes injecting plastic around the inner part, which comprises the blocking element as well as the bearing and sealing rings, in the pre-assembled state with the use of an adhesion means to form the housing.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: October 28, 2003
    Assignee: Figa-Hybrid AG
    Inventor: Michael W. Tappe