Patents by Inventor Friedhelm Heinze

Friedhelm Heinze 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).

  • Trolley for track systems
    Patent number: 6389981
    Abstract: A trolley for track systems with essentially right-angled intersections is equipped with raisable and lowerable rollers which can be lowered to engage with, and raised to disengage with, one of the pairs of tracks. A common actuator (76,78) simultaneously lowers, in relation to the trolley, the rollers associated with one pair of tracks and raises the rollers associated with the intersecting pair of tracks.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: May 21, 2002
    Assignee: Wilfred Strothmann GmbH & Co. KG, Mashinenbau und Handhabungstechnik
    Inventors: Wilfried Strothmann, Rainer Massow, Friedhelm Heinze
  • Trolley for track systems
    Publication number: 20020029717
    Abstract: A trolley for track systems with essentially right-angled intersections is equipped with raisable and lowerable rollers which can be lowered to engage with, and raised to disengage with, one of the pairs of tracks. A common actuator (76,78) simultaneously lowers, in relation to the trolley, the rollers associated with one pair of tracks and raises the rollers associated with the intersecting pair of tracks.
    Type: Application
    Filed: May 15, 2001
    Publication date: March 14, 2002
    Applicant: Wilfried Strothmann GmbH & Co. KG, Maschinenbau und Handhabungstechnik
    Inventors: Wilfried Strothmann, Rainer Massow, Friedhelm Heinze