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
AU2003239388(A1)
申请公布日期
2003.11.11
申请号
AU20030239388
申请日期
2003.05.08
申请人
THE CHAMBERLAIN GROUP, INC.
发明人
JAMES, C. GRIFFIN;JAMES, J. FITZGIBBON;EDWARD, T. LAIRD;ROBERT, J. OLMSTED
