Patents by Inventor Vincent H. Koo

Vincent H. Koo 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: 5181322
    Abstract: A can opener of the type in which the can is opened by cutting through an outer part of the rim joining the lid with the main body of the can. Cam means (51) are arranged to engage outside wall of the can immediately beneath the rim, the engagement underneath the rim moving the cam means and cutter wheel (40) against resilient means (54) to a position such that the cutter wheel makes its cut at a substantially constant predetermined distance on the rim. The drive wheel can have an outer cylindrical surface which is toothed and its lower edge bevelled or chamfered.
    Type: Grant
    Filed: May 7, 1991
    Date of Patent: January 26, 1993
    Assignee: Maxpat Trading & Marketing (Far West) Limited
    Inventor: Vincent H. Koo
  • Patent number: 4937938
    Abstract: An egg slicer comprising upper and lower hinged arm which are arranged to be grasped in one hand by a user. The arms are hinged to one another at their near ends. The front end of the lower arm has a number of spaced but parallel cutter means for slicing a boiled egg forced past them while the upper arm has an enlarged presser member for trapping an egg placed in the cutter means and forcing the egg past the cutter means as the two arms are squeezed together. The upper arm has thumb receiving means for engaging a user's thumb while grasping the arms of the slicer in one hand so that, by raising the user's thumb, the presser member can be raised to allow a fresh egg to be placed in the cutter means, thereby enabling the egg slicer to be operated with one hand.
    Type: Grant
    Filed: September 28, 1989
    Date of Patent: July 3, 1990
    Assignee: IBL Products Company Limited
    Inventor: Vincent H. Koo