Method and device for adjusting an internal obstruction...

Electricity: motive power systems – Motor-reversing – Automatic and/or with time-delay means

Reexamination Certificate

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Details

C318S280000, C318S281000, C318S432000, C049S026000, C049S028000

Reexamination Certificate

active

06873127

ABSTRACT:
An operator and related method for adjusting an internal force setting for a motorized garage door operator is disclosed. The operator checks for the presence of a secondary entrapment safety feature and automatically increases a force threshold setting from a first value to a second value if the secondary entrapment safety feature is detected. If the safety feature is not detected or it is later disconnected, then the operator automatically sets the force threshold to a more sensitive value.

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patent: 0 839 980 (1998-05-01), None

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