Patents by Inventor Dean A. Hanquist

Dean A. Hanquist 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).

  • Centrifuge rotor having structural stress relief
    Patent number: 5728038
    Abstract: A centrifuge rotor with a body having a spin axis and a plurality of bores formed therein, each of which is adapted to support a centrifuge container. The rotor includes a load reducing feature to decrease the loading between the rotor body and the centrifuge container, during centrifugation. The load reducing feature includes separating a portion of an annular shoulder of a centrifuge container from the rotor body. The portion of the annular shoulder that is separated is disposed between the spin axis and the bore associated with the centrifuge container.
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: March 17, 1998
    Assignee: Beckman Instruments, Inc.
    Inventors: Robert G. Coffey, Dean A. Hanquist, Patrick Q. Moore, Terence T. Lung