Patents by Inventor Chen Hung-Jang

Chen Hung-Jang 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).

  • Roller type support frame structure
    Patent number: 6405981
    Abstract: A roller type support frame structure includes a body connected to a post. Two end pieces respectively extend from the body and one of the end piece has a threaded hole and the other end piece has a hole defined therethrough. A core has a threaded outside for being threadedly engaged with the threaded hole, and an insertion section of the core is inserted into the hole of the second end piece. A sleeve is rotatably mounted to the core.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: June 18, 2002
    Assignee: Palmgren Industrial Corp, Ltd.
    Inventor: Chen Hung-Jang