Patents by Inventor Stephan Notzon

Stephan Notzon 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).

  • Pump, particularly plunger pump
    Patent number: 6622612
    Abstract: A pump, particularly a plunger pump, comprises a crank mechanism oscillating a plunger in a housing and an elastic sealing device fastened to the plunger. The sealing device provides a pressure-tight sealing with respect to a lower housing space containing the crank mechanism. As a result, an intermediate space in the housing may be filled with air. The intermediate space is hermetically separated from the lower housing space containing the crank mechanism.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: September 23, 2003
    Assignee: Hammelmann Maschinenfabrik GmbH
    Inventor: Stephan Notzon
  • Pump, particularly plunger pump
    Publication number: 20020174767
    Abstract: A pump, particularly a plunger pump, comprises a crank mechanism oscillating a plunger in a housing and an elastic sealing device fastened to the plunger. The sealing device provides a pressure-tight sealing with respect to a lower housing space containing the crank mechanism. As a result, an intermediate space in the housing may be filled with air. The intermediate space is hermetically separated from the lower housing space containing the crank mechanism.
    Type: Application
    Filed: May 14, 2002
    Publication date: November 28, 2002
    Applicant: Hammelmann Maschinenfabrik GmbH
    Inventor: Stephan Notzon