Patents by Inventor Ernst-Oskar Benfer

Ernst-Oskar Benfer 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: 4866827
    Abstract: A sealing arrangement for roll bearings in skin pass mill stands in which the roll neck has a tapered portion extending between the end face of the roll and a portion of the roll neck which is provided with a neck sleeve and is supported in a bearing bushing in the bearing housing. An annular, flexible sealing member constructed in one piece and reinforced by means of an annular wire rope or strip is slid onto the tapered portion of the roll neck and rests on the tapered portion with annular sealing projections. An outer annular end of at least one of two axially spaced radially extending, elastic annular ribs can be placed in elastic frictional contact with at least one annular sealing surface which is rigidly connected to the lid of a housing and is arranged laterally of an annular flange rigidly connected to the housing. The second annular rib on the side of the roll is a rib stump whose circumference has the shape of a truncated cone. The rib stump has a sharp tear-off edge facing the annular flange.
    Type: Grant
    Filed: June 27, 1988
    Date of Patent: September 19, 1989
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Ernst-Oskar Benfer, Rolf G. Irle
  • Patent number: 4733458
    Abstract: A circular groove present on a journal on its end is utilized to provide a bayonet coupling on the journal without mechanical refinishing work to fix or clamp a ring piece axially on the journal. The clamped supporting elements of the bayonet coupling are formed as a divided supporting ring whose collar engages in the circular groove and is rigidly nonrotatably held in it. The circumferentially divided supporting surfaces of the supporting ring are assembled by attaching members correspond in the locked configuration with the interiorly directed circumferentially divided abutting surfaces of the clamped ring piece which form the rotatable portion of the bayonet coupling.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: March 29, 1988
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Ernst-Oskar Benfer, Gerd Irle