Patents by Inventor Jürgen Murhammer

Jürgen Murhammer 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).

  • Monitor to check the path of motion of reciprocating piston
    Patent number: 7007563
    Abstract: A stationary arranged sensor (4) is provided in the region of one of the dead centers of the piston movement to monitor the position of the path of motion of a piston (1) relative to a cylinder (2) whereby the sensor (4) measures the lateral distance (a) to an indicator unit (6) arranged on the piston (1). The sensor (4) is arranged in a recessed position relative to the inner surface of the cylinder (2) and is sealed toward the cylinder chamber (9) by means of a cover (8), and the indicator unit (6) on the piston (1) is designed as an anomaly (10) that is non-sensitive to contaminating deposits in the area of the face (11) of the piston (1).
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: March 7, 2006
    Assignee: Hoerbiger Kompressortechnik Services GmbH
    Inventors: Bernhard Spiegl, Peter Steinrück, Jürgen Murhammer