A system for decoupling a barrier from a barrier movement apparatus for the manual operation of the barrier. Advantageously, the decoupling is performed in response to a wireless signal and may be done only when the barrier is determined to be in a safe position.
申请公布号
EP1501996(A2)
申请公布日期
2005.02.02
申请号
EP20030733972
申请日期
2003.05.08
申请人
THE CHAMBERLAIN GROUP, INC.
发明人
GRIFFIN, JAMES, C.;FITZGIBBON, JAMES, J.;LAIRD, EDWARD, T.;OLMSTED, ROBERT, J.
