Method and apparatus for pulse variable-controlled movable obstacle detection

Details for Australian Patent Application No. 2003223454 (hide)

Owner THE CHAMBERLAIN GROUP, INC.

Inventors Fitzgibbon, James

Agent Spruson & Ferguson

Pub. Number AU-A-2003223454

PCT Number PCT/US03/10344

PCT Pub. Number WO2003/088469

Priority 10/118,523 08.04.02 US

Filing date 4 April 2003

Wipo publication date 27 October 2003

International Classifications

H02P 001/04 Arrangements for starting electric motors or dynamo-electric converters

H02P 003/00 Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters

H02P 007/00 Arrangements for regulating or controlling the speed or torque of electric dc-motors

H02H 007/08 Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions - for dynamo-electric motors

G05B 005/00 Anti-hunting arrangements

G05D 003/00 Control of position or direction

Event Publications

7 August 2003 Complete Application Filed

  Priority application(s): 10/118,523 08.04.02 US

4 December 2003 Application Open to Public Inspection

  Published as AU-A-2003223454

30 October 2008 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(d). Examination has been requested or an examination report has issued for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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