Patents by Inventor Chung-Chee Wong

Chung-Chee Wong 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).

  • Patent number: 4293896
    Abstract: A battery-operated lantern has two rows of single-cell batteries disposed end-to-end in its body, the two rows being side-by-side and parallel, and the body has a closure member with an insulated contact plate secured to it for engagement by the central electrode of the adjacent cell in one row and by the base of the adjacent battery in the other row, for connecting the batteries in one row in series with those in the other row. The electrical contacts at the other end of the casing are constituted by respective coil springs which serve also to press the batteries in the two rows towards the contact plate. The closure member has a spring-loaded catch which automatically secures the member as it is moved into a closed position on the body.
    Type: Grant
    Filed: July 16, 1979
    Date of Patent: October 6, 1981
    Assignee: San P. Kong
    Inventor: Chung-Chee Wong
  • Patent number: 4220304
    Abstract: To adapt a new attachment for an electric torch or flashlight of the kind having a generally cylindrical barrel so that it can be magnetically attached to a magnetic surface, an attachment is provided composed of a body shell which is a resilient partial sleeve with one or more magnets secured to it. The shell may be conveniently made from a plastic material tapering in thickness in opposite circumferential directions towards its axially extending edges. The shell snaps over the barrel of the torch and may have an opening for accommodating the switch and the switch housing so as to provide access to the switch and allow precise location of and prevent movement of the shell along the barrel.
    Type: Grant
    Filed: June 26, 1978
    Date of Patent: September 2, 1980
    Assignees: Sonca Industries Limited, Union Carbide Australia Limited
    Inventors: Chung-Chee Wong, David R. Dalton
  • Patent number: D247990
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: May 23, 1978
    Assignee: Sonca Industries, Limited
    Inventor: Chung-Chee Wong
  • Patent number: D255612
    Type: Grant
    Filed: May 15, 1978
    Date of Patent: June 24, 1980
    Assignees: Sonca Industries Limited, Union Carbide Australia Limited
    Inventors: Chung-Chee Wong, David R. Dalton
  • Patent number: D258011
    Type: Grant
    Filed: July 7, 1978
    Date of Patent: January 20, 1981
    Assignees: Sonca Industries Limited, Union Carbide Australia Limited
    Inventors: Chung-Chee Wong, David R. Dalton
  • Patent number: D263507
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: March 23, 1982
    Assignee: Sonca Industries Limited
    Inventor: Chung-Chee Wong
  • Patent number: D263630
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: March 30, 1982
    Assignee: Sonca Industries Limited
    Inventor: Chung-Chee Wong