Patents by Inventor Thomas Rommer

Thomas Rommer 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).

  • Patent number: 6055951
    Abstract: A finger lever (1) is configured for the simultaneous loading of three identically operating gas exchange valves. To simplify the manufacture of a hydraulic medium supply of its hydraulic clearance compensation elements (4) resting on valve stem ends and to prevent unnecessary losses of hydraulic medium, the invention proposes the arrangement of only one central passage (12) in the finger lever (1) for supplying all the clearance compensation elements (4). This passage (12) extends near a central transverse plane of the finger lever (1) and opens into a cross-passage (10) in the form of a through-bore to the individual clearance compensation elements (4).
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: May 2, 2000
    Assignee: Ina Walzlager Schaeffler oHG
    Inventors: Thomas Rommer, Dieter Schmidt
  • Patent number: 5881691
    Abstract: A rocker arm (1) or finger lever for a valve drive of an internal combustion engine is provided in which a guide bushing (7) is press-fit in a receptacle hole (2). The guide bushing (7) has a bore (9) in which an outer part (4) of a hydraulic play compensation component (3) is guided in a sliding manner. The guide bushing (7) has a radially inwardly directed projection (10) which holds a shoulder formed by a diameter reduction of the outer part (4) from behind or meshes in a groove of the outer part (4). This arrangement allows the hydraulic play compensation component (3) to be secured from loss using the press-fit guide bushing (7).
    Type: Grant
    Filed: February 12, 1998
    Date of Patent: March 16, 1999
    Assignee: INA Walzlager Schaeffler OHG
    Inventors: Dieter Schmidt, Thomas Rommer