Patents by Inventor Ingjiun D. Chang

Ingjiun D. Chang 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).

  • Gasket for exhaust system joint
    Patent number: 5524906
    Abstract: A gasket for a connection joint of a vehicle exhaust system to seal two sections of the system against leakage of exhaust. The gasket is an integral ring consisting of a main flange portion which is disposed between the connected sections of the exhaust system and a perpendicular radial flange which extends into the exhaust tube. The main flange includes a raised circumferential seal ridge. The radial flange includes a plurality of serrations which engage the interior of the exhaust section to retard rotation and removal of the gasket.
    Type: Grant
    Filed: July 18, 1994
    Date of Patent: June 11, 1996
    Assignee: MascoTech Tubular Products, Inc.
    Inventors: John Rackov, Ingjiun D. Chang