Patents by Inventor Yun S. Wei

Yun S. Wei 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).

  • Crankshafts without torsional vibration resonance
    Patent number: 5007306
    Abstract: A crankshaft used in piston engines has vibration and noise level normally associated therewith substantially reduced. The natural frequencies of torsional vibration of individual cranks are made unequal by making main journals of different outside diameters.
    Type: Grant
    Filed: October 19, 1989
    Date of Patent: April 16, 1991
    Inventor: Yun S. Wei