Patents by Inventor Cho H. Ju

Cho H. Ju 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).

  • Power Machine
    Patent number: 4543841
    Abstract: A power-machine comprising a plurality of driving gears positioned around a driven gear, each driving gear including a plurality of radially sliding teeth spaced equidistant about the outer circumference of the driving gear, such that centrifugal force created by the rotational movement of the driving gears will move the radially sliding teeth radially outward of the driving gears to contact and thereby accelerate the drive gear.
    Type: Grant
    Filed: February 17, 1982
    Date of Patent: October 1, 1985
    Inventor: Cho H. Ju