A braking controller of a three-phase permanent magnetic brushless DC motor for directly driving a screw pump

Details for Australian Patent Application No. 2006347193 (hide)

Owner Liu, J. Tang, Y. Cong, H.

Inventors Cong, Hengli; Liu, Jun; Tang, Yongjian

Agent Spruson & Ferguson

Pub. Number AU-A-2006347193

PCT Pub. Number WO2008/017212

Filing date 4 August 2006

Wipo publication date 14 February 2008

International Classifications

F04B 49/06 (2006.01) Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups - Control using electricity

Event Publications

2 April 2009 PCT application entered the National Phase

  PCT publication WO2008/017212 Priority application(s): WO2008/017212

18 June 2009 Assignment before Grant

  Liu, Jun; Cong, Hengli; Tang, Yongjian The application has been assigned to Liu, Jun; Tang, Yongjian; Cong, Hengli; Direct Drive PCP Inc. 2007

Legal

The information provided by the Site not in the nature of legal or other professional advice. The information provided by the Site is derived from third parties and may contain errors. You must make your own enquiries and seek independent advice from the relevant industry professionals before acting or relying on any information contained herein. Check the above data against the Australian Patent Office AUSPAT database.

Next and Previous Patents/Applications

2006347204-Lifting grab

2006347192-A surface motor direct-drive sucker-rod screw pump device