Patents by Inventor Kerwin D. W. Chong

Kerwin D. W. Chong 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: 5603239
    Abstract: A large gyroscope adapted to be used in place of, or in addition, to the counterweights normally used on a crane to keep it from tipping when hoisting a load. The gyroscope is of fixed mass such that all road permits and restrictions can be satisfied without stripping the crane. Once on site, the crane will accelerate its gyroscope to a predetermined number of revolutions per minute (steady state). To induce the gyroscopic moment to counter the tipping moment under load, a motor will rotate the gyroscope with respect to the precession axis, thus inducing a gyroscopic moment. Theoretically, any amount of counter weights can be simulated by controlling the precession rotation and spin of this fixed mass gyroscope.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: February 18, 1997
    Inventor: Kerwin D. W. Chong