Patents by Inventor Roland Hoepfl

Roland Hoepfl 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).

  • DEVICE WITH A DIAPHRAGM ARRANGEMENT
    Publication number: 20020134433
    Abstract: In devices with a diaphragm arrangement crimped into place and dividing two chambers from one another, until now functional problems arose at elevated pressures, because in permanent operation the diaphragm arrangement shifted, or because of leaks.
    Type: Application
    Filed: April 22, 2002
    Publication date: September 26, 2002
    Inventors: Stanislaus Tomczak, Roland Hoepfl, Ralph Ittlinger, Volker Hudec
  • Diaphragm pressure regulating valve assembly
    Patent number: 6029694
    Abstract: This pressure regulator prevents unpleasant vibration of the closing body. In the pressure regulator, a friction spring that is simple to mount is provided, by means of which the vibration of the closing body can be suppressed or reduced. The pressure regulator is intended in particular for fuel supply systems of motor vehicles that have an internal combustion engine.
    Type: Grant
    Filed: December 1, 1997
    Date of Patent: February 29, 2000
    Assignee: Robert Bosch GmbH
    Inventors: Helmut Schwegler, Roland Hoepfl, Wolfgang Bueser, Uwe Talmon, Lorenz Drutu