Patents by Inventor Hung S. Wang

Hung S. Wang 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).

  • Oscillatory tooth and needle gear transmitting devices
    Patent number: 4798104
    Abstract: An oscillatory tooth and needle gear transmitting device which is chiefly composed of a wave-actuator, an oscillatory tooth wheel and a stationary needle gear.The oscillatory tooth and needle gear transmitting device for transmitting rotary motion comprises a wave-actuator composed of an off-set standard rolling bearing, an oscillatory tooth wheel composed of a set of cylindrical pin-shaped oscillatory teeth with wedged trapezoid tooth heads, and a needle gear composed of a set of needle teeth with or without rolling sleeves, the three basic components being assembled coaxially. In the transmitting device, the reciprocal movement of oscillatory teeth is realized by meshing forces between tooth profiles, elastic return rings being unnecessary; multi-tooth meshing resulting in uniformized loads, the device of uniforming loads being removed.The transmitting device has the features of large speed ratio, great loading capacity, high transmitting efficiency, compact structure and simplified machining process.
    Type: Grant
    Filed: October 30, 1987
    Date of Patent: January 17, 1989
    Inventors: Shixian Chen, Hung S. Wang, Linai Chang