Patents by Inventor Jan Sandgren

Jan Sandgren 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).

  • Spring for centering two annular bodies relative to each other
    Patent number: 5344161
    Abstract: A spring centering device for centering two annular bodies relative to one another. The device including a spring (22) with a central spine (20) and multiple fingers (24) extending from the spine (20). Alternatively, the device includes a spring with a central axis including axially oriented elements (34) parallel to but displaced from the central axis, and connecting elements (24) structurally contiguous with an axial element on each side of the central axis.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: September 6, 1994
    Assignee: EG&G Sealol, Inc.
    Inventor: Jan Sandgren