Patents by Inventor Robert Andreas Gsteu

Robert Andreas Gsteu 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).

  • Vacuum control valve
    Patent number: 6609697
    Abstract: A vacuum control valve comprises a valve chamber with a valve opening which has a portion with a cylindrical inside wall on which an elastic sealing washer is provided. A closing body is included which comprises a cylindrical portion with a first end and a second end, adjoined by a portion of the closing body that widens into a cone, wherein at least one groove is present in the cylindrical portion of the closing body which extends to the first end of the cylindrical portion and which either widens along its extent to the first end, or deepens, or widens as well as deepens.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: August 26, 2003
    Inventor: Robert Andreas Gsteu
  • Vacuum control valve
    Publication number: 20030042449
    Abstract: A vacuum control valve comprises a valve chamber with a valve opening which has a portion with a cylindrical inside wall on which an elastic sealing washer is provided. A closing body is included which comprises a cylindrical portion with a first end and a second end, adjoined by a portion of the closing body that widens into a cone, wherein at least one groove is present in the cylindrical portion of the closing body which extends to the first end of the cylindrical portion and which either widens along its extent to the first end, or deepens, or widens as well as deepens.
    Type: Application
    Filed: September 6, 2001
    Publication date: March 6, 2003
    Applicant: VAT Holding AG
    Inventor: Robert Andreas Gsteu