Patents by Inventor Hong W. V. Koo

Hong W. V. 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: 4825554
    Abstract: A can opener providing a circular cut around the cylindrical wall of a can below the lid and rim which are severed by the cut from the rest of the can. A pair of body members having integrally formed handles are pivoted to one another. A rotatable spindle attached to a driving wheel drives the can opener. A cutting wheel forms a nip with the driving wheel in an operating position to force the cutting edge to penetrate through the wall of the can. A mounting plate carrying the cutting wheel is slidably supported by one body member and is movable by cam means between the operating position and a retracted position as the body members are pivoted between their limits of pivoting.
    Type: Grant
    Filed: January 21, 1988
    Date of Patent: May 2, 1989
    Assignee: Mike & Kremmel Limited
    Inventor: Hong W. V. Koo
  • Patent number: 4754550
    Abstract: A can opener providing a circular cut around the cylindrical wall of a can below the lid and rim which are severed by the cut from the rest of the can. A pair of body members having integrally formed handles are pivoted to one another. A rotatable spindle attached to a driving wheel drives the can opener. A cutting wheel forms a nip with the driving wheel in an operating position to force the cutting edge to penetrate through the wall of the can. A mounting plate carrying the cutting wheel is slidably supported by one body member and is movable by cam means between the operating position and a retracted position as the body members are pivoted between their limits of pivoting. To prevent twisting of the body members and their integral handles, cooperating flanges and recess are provided between the body members and their handles. In the retracted position the wheel withdraws into an upstanding guard whose edge abuts the severed top and displaces it.
    Type: Grant
    Filed: January 27, 1986
    Date of Patent: July 5, 1988
    Assignee: Mike & Kremmel, Ltd.
    Inventor: Hong W. V. Koo