Patents by Inventor Roland Duval

Roland Duval 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: 5887984
    Abstract: A double row tapered roller bearing for transferring axial loads includes an inner race having two tapered raceways, an outer race in the form of two rings, each having a tapered raceway presented toward a tapered raceways of the inner race, and tapered rollers arranged in two rows between the raceways of the inner and outer races, with the large ends for the rollers of the two rows being presented toward each other. The bearing fits into a housing with a loose fit between the rings of the outer race and the housing. Two seals, which are fitted to the rings of the outer race, isolate the interior of the bearing from the surrounding environment. Each seal includes a case that fits around one of the rings of the outer race and along the end of that ring, all such that the ring can shift axially with respect to the seal case.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: March 30, 1999
    Assignee: The Timken Company
    Inventor: Roland Duval
  • Patent number: 5711616
    Abstract: A bearing seal (10) has a casing 11 with a dynamic sealing element (18) such as an EHD at an inner edge. At the outer edge of the casing (11) a static sealing element (14) is provided on an axially extending flange (13). The static sealing element (14) includes opposing outwardly projecting sealing lips (23) which are capable of deflection and which have an outer diameter greater than the diameter of the bearing housing bore when unrestrained. The bearing seal (10) seals the inner and outer race rings of a bearing dynamically and also the outer race ring with the bearing housing statically and positively.
    Type: Grant
    Filed: April 9, 1996
    Date of Patent: January 27, 1998
    Assignee: The Timken Company
    Inventors: Roland Gassmann, Graham Sturman, Roland Duval