Patents by Inventor Benson Kwan

Benson Kwan 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 lid safety lock
    Patent number: 5150932
    Abstract: A redundant safety lock for securing a centrifuge lid in its closed position. The lock includes a disc having an aperture through which a striker on the lid can be inserted in an unlocked position. The disc is rotated to a locked position such that the striker cannot be withdrawn through the aperture to open the lid. The weight distribution of the disc is substantially symmetrical about its center of rotation. The disc is therefore less susceptible to dislodging form its locked position upon perturbation from shock experienced.
    Type: Grant
    Filed: January 14, 1991
    Date of Patent: September 29, 1992
    Assignee: Beckman Instruments, Inc.
    Inventors: Thomas E. Conn, Benson Kwan