Patents by Inventor Kin H. Hsieh

Kin H. Hsieh 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).

  • Hub assembly of a bicycle and the like
    Patent number: 5024121
    Abstract: A hub is rotatably supported on an axle. A collar is fixed to one end of the hub. A number of rollers are rotatably supported on an outer surface of a frustum which is formed in the middle of the collar, and contact an inner surface of a sleeve. Two pawls are coupled on the free end of the collar. The sleeve has a ratchet gear formed in an inner surface for engagement with the pawls so that the collar can be driven to rotate unidirectionally by the sleeve. The rollers have a large contact surface so that the sleeve can be stably supported in rotational relationships with the collar.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: June 18, 1991
    Inventor: Kin H. Hsieh