Patents by Inventor Chun-Nan Liu

Chun-Nan Liu 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).

  • Air jet for machine tool to clean cutting dust
    Publication number: 20040205924
    Abstract: An air jet for a machine tool to clean cutting dust has a housing with a hole and an outlet. An eccentric member has a cam and is provided in the housing which the eccentric member is driven by a power resource of the machine tool for rotation. An annular transmission is engaged with the eccentric member. A driving member is driven by the transmission for linear reciprocating motion. A flexible film is provided in the housing covering the outlet and has an inlet corresponding to the driving member, wherein the inlet of the film is sealed and the film is pressed for strain while the driving member is moved toward the film, and a tube has an end thereof connected with the outlet.
    Type: Application
    Filed: May 16, 2003
    Publication date: October 21, 2004
    Applicant: OAV EQUIPMENT & TOOLS, INC.
    Inventor: Chun-Nan Liu
  • Planer
    Patent number: D492330
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: June 29, 2004
    Assignee: OAV Equipment & Tools, Inc.
    Inventor: Chun-Nan Liu