Obstacle detector-responsive movable barrier operator...

Details Obstacle detector-responsive movable barrier operator... Obstacle detector-responsive movable barrier operator...

2006-01-24

2006-01-24

Pope, Daryl C. (Department: 2632)

Communications: electrical

Traffic control indicator

Portable

C340S686100, C340S665000, C340S668000

Reexamination Certificate

active

06989767

ABSTRACT:
A movable barrier operator (10) can have at least two automatic modes of operation. These modes of operation can differ from one another at least with respect to their respective utilized maximum-applied-force thresholds, such that one of the modes of operation correlates to a reduced maximum-applied-force threshold. Selection between these available maximum-applied-force thresholds can be based, at least in part, upon whether an obstacle detector is operably coupled to the movable barrier operator. In one embodiment, a primary controller (30) and a secondary controller (31) can be utilized to effect the controlled selection and usage of the available maximum-applied-force thresholds. In another embodiment, maximum permitted speed of travel for the movable barrier can also be determined, at least in part, as a function of whether an obstacle detector is available to the movable barrier operator.

REFERENCES:
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patent: 6588829 (2003-07-01), Long et al.
patent: 2003/0178957 (2003-09-01), Fitzgibbon et al.
patent: 2003/0210005 (2003-11-01), Murray
patent: 2004/0012480 (2004-07-01), Jurado et al.
patent: 0 410 204 (1990-07-01), None
patent: 1 304 442 (2002-10-01), None
British Search Report for British patent application GB0412065.5 dated Oct. 4, 2004.

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