Patents by Inventor Ralph R. Koebele

Ralph R. Koebele 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).

  • Method of assembling a torque converter impeller
    Patent number: 5109604
    Abstract: A method for assembling a torque converter impeller includes securing a pality of vanes to a core ring to maintain the vanes in a desired orientation. The core ring and vanes are positioned as a unit in an outer shell where the outer shell has a substantially smooth interior surface. The vanes and core ring unit is secured to the interior surface of the outer shell.
    Type: Grant
    Filed: April 20, 1989
    Date of Patent: May 5, 1992
    Assignee: Borg-Warner Automotive Transmission & Engine Components Corporation
    Inventor: Ralph R. Koebele