Patents by Inventor Jgi J. Shiau

Jgi J. Shiau 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).

  • Patent number: 4640500
    Abstract: The present invention relates to an improved inherently effectively damped coiled spring construction including a first coiled spring having a pair of ends, and a second coiled spring having a pair of ends, the second coiled spring being in the form of at least one tubular spring, the body of which is disposed about the body of the first coiled spring in operable contact therewith to provide the desired friction therebetween and whose ends are not contiguous with the ends of the first coiled spring and are free of contact with the weight imposed on the first spring and the support of the first spring so that when the first spring is dynamically compressed or expanded, relative twisting movement of the springs is made possible immediately following yielding of static friction force along their contacts, whereby the second spring disengages from the further twisting movement of the temporarily deformed coils of the first spring, thereby creating an effective friction generating and energy dissipating device for
    Type: Grant
    Filed: October 31, 1985
    Date of Patent: February 3, 1987
    Inventor: Jgi J. Shiau