Patents by Inventor Wing Shun Luk

Wing Shun Luk 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).

  • Dust cup latch for cyclone separator vacuum
    Patent number: 8032983
    Abstract: A latching mechanism for the dust cup assembly on a bottom exit cyclone-separator vacuum cleaner, including a non-rotating annular seal member supporting the dust cup assembly above a discharge outlet, and a U-shaped slide lock member movable in and out underneath the dust cup assembly to raise and lower the seal member, thus raising and lower the dust cup assembly into and out of engagement with a cyclone separator chamber.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: October 11, 2011
    Assignee: BISSELL Homecare, Inc.
    Inventors: Aaron P. Griffith, Wing Shun Luk, Gabriel S. Vander Baan
  • DUST CUP LATCH FOR CYCLONE SEPARATOR VACUUM
    Publication number: 20080282497
    Abstract: A latching mechanism for the dust cup assembly on a bottom exit cyclone-separator vacuum cleaner, including a non-rotating annular seal member supporting the dust cup assembly above a discharge outlet, and a U-shaped slide lock member movable in and out underneath the dust cup assembly to raise and lower the seal member, thus raising and lower the dust cup assembly into and out of engagement with a cyclone separator chamber.
    Type: Application
    Filed: May 15, 2008
    Publication date: November 20, 2008
    Applicant: BISSELL HOMECARE, INC.
    Inventors: Aaron P. Griffith, Wing Shun Luk, Gabriel S. Vander Baan