Patents by Inventor Hanping Cui

Hanping Cui 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).

  • Half-ball type universally movable tripod head
    Patent number: 6017010
    Abstract: The half-ball type universally-movable tripod head for supporting cameras comprises a base (22), a platform (17) and a universally positioning means (23). The universally positioning means (23) comprises mainly an upper joint and a lower joint respectively having a half ball (3,4) with locking ball (1,2) in it and a socket (5,6), a supporting stand (15) between said two joints, a controlling handle (9), tension rods (7,8) having positive or negative thread respectively, and a nut (10) with positive and negative threads at opposite ends. The rod (7,8) is controlled by turning the handle (9) for tensioning or releasing the two half balls, so that the two joints can be locked or unlocked and the camera can be instantly immobilized as well as smoothly triaxially rotated.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: January 25, 2000
    Inventor: Hanping Cui