Patents by Inventor Adam Biedermann

Adam Biedermann 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).

  • Chain tensioner
    Patent number: 4713043
    Abstract: In a chain tensioner (116) having a piston (120) displaceable in a guide housing (118) along its axis (134) and having a tensioner bar (124) articulated to the guide housing (118) with pressure of the piston head (122) upon the tensioner bar (124), in one of the two parts, piston head and tensioner bar, a guide groove (140) extending substantially parallel to the longitudinal direction of the tensioner bar is provided in which there engages a guide protuberance (piston head 122 flattened off on both sides) formed in each case on the other part. This results firstly in a securing of the tensioner bar against lateral pivoting and nextly in a securing of the piston against rotation.
    Type: Grant
    Filed: February 25, 1986
    Date of Patent: December 15, 1987
    Assignee: Joh. Winklhofer & Sohne
    Inventor: Adam Biedermann