Patent ID: 6873127
Filing Date: 2005-03-29
Classification: E05F,E05Y

Abstract:
1. A method for adjusting an internal force threshold setting for a motorized garage door operator, the method comprising: establishing a base line force application value applied by a motor to move a door between limit positions; storing in a controller maintained by the garage door operator said base line force application value; checking for connection of an entrapment safety feature to said controller by said controller, said controller setting a force threshold to a default value if said entrapment safety feature is not connected to said controller and increasing said force threshold value a predetermined amount above said default value if said entrapment safety feature is connected to said controller; determining by the controller the amount of force applied by the motor during movement of the door; and implementing corrective action by said controller if the amount of force actually applied by the motor is greater or less than said base line force application value and said force threshold value.