Patents by Inventor Lawrence H. Williams, Jr.

Lawrence H. Williams, Jr. 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).

  • Torque converter viscous coupling bypass element with improved seal arrangement
    Patent number: 5044477
    Abstract: A bypass element (27) for a torque converter (15) is provided in which the bypass element comprises a viscous coupling (29). The viscous coupling includes a housing assembly comprising a body member (35) and a cover member (37), defining a viscous chamber (39) therebetween. Disposed within the viscous chamber is a clutch assembly (41) including a clutch portion (61) and a hub portion (65). The body member includes a hub portion (47) on which are disposed bushings (85 and 87). The cover member includes a hub portion (59) on which is disposed a bushing (89). The hub portion defines annular seal chambers (101 and 103) which include O-ring seals (105 and 107) respectively. Disposed upstream of the upstream O-ring, the hub portion defines an annular leakage groove (113) and an axial passage (115), communicating from the leakage groove to a downstream chamber (109) adjacent the coupling.
    Type: Grant
    Filed: September 19, 1990
    Date of Patent: September 3, 1991
    Assignee: Eaton Corporation
    Inventors: Edward J. Bojas, Lester R. Campbell, Jr., Lawrence H. Williams, Jr., Charles A. Mains