Patents by Inventor Hong P. Chung

Hong P. Chung 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).

  • Nipper type record cleaner
    Patent number: 4199150
    Abstract: The present invention relates to an improved record cleaner, comprising mainly two cylindrical brushes, an axial lever slightly bent at one end, an L-shape axial lever, a handle body, an operation rod, an operation trigger, a brake button, a connecting plate, a circular plate, spring coils and joint bolts, which cleans a record surface without the defect of bending the record.
    Type: Grant
    Filed: January 29, 1979
    Date of Patent: April 22, 1980
    Inventor: Hong P. Chung