Patents by Inventor Yim Hei Joseph Yeung

Yim Hei Joseph Yeung 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).

  • Roulette savings box
    Patent number: 3997045
    Abstract: A coin box has an upper structure serving as a coin chute for receiving coins and passing them to the lower box. Within the coin chute structure is a paddle wheel arrangement mounted for rotation about a horizontal axis spaced off-center of the chute portion through which a coin passes. A dropping coin strikes one of the vanes of the paddle wheel to rotate the wheel. A front face of this paddle wheel includes numerals about its periphery, visible through a window in the chute structure, such that each time a coin is received, the wheel will be rotated and come to rest in a random position.
    Type: Grant
    Filed: June 13, 1975
    Date of Patent: December 14, 1976
    Assignee: Joylite Manufacturing Co., Ltd.
    Inventor: Yim Hei Joseph Yeung
  • Simulative toy vehicle
    Patent number: D243107
    Type: Grant
    Filed: April 18, 1975
    Date of Patent: January 18, 1977
    Inventor: Yim Hei Joseph Yeung
  • Simulative toy vehicle
    Patent number: D243108
    Type: Grant
    Filed: April 18, 1975
    Date of Patent: January 18, 1977
    Inventor: Yim Hei Joseph Yeung
  • Simulative toy vehicle
    Patent number: D243109
    Type: Grant
    Filed: April 18, 1975
    Date of Patent: January 18, 1977
    Inventor: Yim Hei Joseph Yeung
  • Simulative toy vehicle
    Patent number: D243205
    Type: Grant
    Filed: April 18, 1975
    Date of Patent: January 25, 1977
    Inventor: Yim Hei Joseph Yeung