Patents by Inventor Jimmy Dong

Jimmy Dong 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: 4836533
    Abstract: A variable tension loaded striking apparatus comprising a base having a pair of spaced upstanding ears between which are disposed a holder portion, the holder portion also being secured at one end of an adjustable air or hydraulic compression device, which at its opposite end is connected to the base of the apparatus. Removeably disposed within the holster portion is a striking board which is a plank or similar material adapted to serve as a blow receiving surface.
    Type: Grant
    Filed: April 10, 1986
    Date of Patent: June 6, 1989
    Inventor: Jimmy Dong