Patents by Inventor Hans Langhammer

Hans Langhammer 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).

  • Apparatus for production of cages
    Patent number: 4090687
    Abstract: An apparatus for the production of plastic cages for radial roller bearings wherein the two end rings of the cage are joined by a plurality of crossbars distributed over their circumference comprising an injection-molding die with a cylindrical core corresponding to the inner diameter of the cage and an outer die element having radially moveable slides, the said injection-molding die being provided with recesses for the simultaneous production of at least two cages.
    Type: Grant
    Filed: February 14, 1977
    Date of Patent: May 23, 1978
    Assignee: Industriewerk Schaeffler OHG
    Inventors: Hans Langhammer, Hans Loos