Patents by Inventor Moon M. Choung

Moon M. Choung 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).

  • Lifting clamp
    Patent number: 4834442
    Abstract: A device for lifting metal plate or the like includes a substantially U-shaped housing which contains a toothless eccentric cam and a shackle. The toothless eccentric cam is mounted to the shackle by use of a connecting link and a radius link. The radius link is pivotably mounted to the housing so that when force is exerted on the shackle, a force is then exerted on the radius link which causes the connecting link to rotate the toothless eccentric cam into the throat of the housing.
    Type: Grant
    Filed: March 3, 1988
    Date of Patent: May 30, 1989
    Inventor: Moon M. Choung