Patents by Inventor WANG-LONG LI

WANG-LONG LI 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).

  • Nut for ball screw
    Patent number: 8997593
    Abstract: A nut for a ball screw mainly includes a nut, multiple dual-narrowed paths, multiple micro fans, a control portion, and multiple temperature sensing portions. The nut has a threaded path and the dual-narrowed paths are defined through the central axis of the nut and substantially parallel to the threaded path. Each of the dual-narrowed paths has a high-speed area and the diameter of each of the dual-narrowed paths is gradually reduced from two ends toward the high-speed area. The nut has micro fans which drive the air flows and reduce the temperature to increase the life of use and the precision of positioning.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: April 7, 2015
    Assignee: National Formosa University
    Inventors: Jeng-Haur Horng, Shin-Yuh Chen, Jen-Fin Lin, Chin-Chung Wei, Hsiao-Yeh Chu, Yuh-Ping Chang, Wang-Long Li
  • NUT FOR BALL SCREW
    Publication number: 20130145877
    Abstract: A nut for a ball screw mainly includes a nut, multiple dual-narrowed paths, multiple micro fans, a control portion, and multiple temperature sensing portions. The nut has a threaded path and the dual-narrowed paths are defined through the central axis of the nut and substantially parallel to the threaded path. Each of the dual-narrowed paths has a high-speed area and the diameter of each of the dual-narrowed paths is gradually reduced from two ends toward the high-speed area. The nut has micro fans which drive the air flows and reduce the temperature to increase the life of use and the precision of positioning.
    Type: Application
    Filed: September 13, 2012
    Publication date: June 13, 2013
    Applicant: NATIONAL FORMOSA UNIVERSITY
    Inventors: JENG-HAUR HORNG, SHIN-YUH CHEN, JEN-FIN LIN, CHIN-CHUNG WEI, HSIAO-YEH CHU, YUH-PING CHANG, WANG-LONG LI