Patents by Inventor Tong Shin

Tong Shin 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).

  • Publication number: 20050170764
    Abstract: A back up pad of a grinding wheel includes two glass fiber layers and two carbon fiber layer attached to the glass fiber layer. The glass fiber layers and the carbon fiber layer are thermally compressed. The carbon fiber layer has a fabric construction of about 40-80 s/yarnĂ—20-35 s/yarn (warpĂ—fill).
    Type: Application
    Filed: April 23, 2004
    Publication date: August 4, 2005
    Applicant: SUN ABRASIVES CO., LTD.
    Inventor: Tong Shin
  • Publication number: 20050026556
    Abstract: A grinding wheel includes a backing disk having a center hole, a plurality of coated abrasives flaps circumferentially arranged on the backing, a bolt being fitted through the center hole of the backing disk, the bolt having a head of a size larger than that of the central hole so that it hangs from the backing disk, a fastening member for fixing the bolt to the grinding wheel and a holder having an upper part into which the bolt is fitted and a lower part connected to a rotating part of a grinder.
    Type: Application
    Filed: February 6, 2004
    Publication date: February 3, 2005
    Applicant: Sun Abrasives Corporation
    Inventor: Tong Shin