Patents by Inventor Weim Chen

Weim Chen 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).

  • Ceramic bearing structure
    Patent number: 6840677
    Abstract: A ceramic bearing structure is constructed to include an axle bush having an axially extended axle hole, and an axle pivoted to the axle hole of the axle bush, the axle bush having a radial open chamber extended across the axle hole. The radial open chamber diminishes the material of the axle bush, reduces the contact area between the axle and the axle bush, and provides a spacious lubrication grease accumulation chamber.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: January 11, 2005
    Assignee: ACT-RX Technology Corporation
    Inventors: Weim Chen, Oscar Lee, San Lin, Mark Chou
  • Ceramic bearing structure
    Publication number: 20040008915
    Abstract: A ceramic bearing structure is constructed to include an axle bush having an axially extended axle hole, and an axle pivoted to the axle hole of the axle bush, the axle bush having a radial open chamber extended across the axle hole. The radial open chamber diminishes the material of the axle bush, reduces the contact area between the axle and the axle bush, and provides a spacious lubrication grease accumulation chamber.
    Type: Application
    Filed: April 29, 2003
    Publication date: January 15, 2004
    Applicant: ACT-RX TECHNOLOGY CORPORATION
    Inventors: Weim Chen, Oscar Lee, San Lin, Mark Chou