Overhead door tilt detection package and method

Abstract

The invention provides an overhead door tilt protection package comprising an enclosure secured to an overhead door, an electrical connection within the enclosure, electrical components within the enclosure including an electronic tilt detector continuously measuring the angle of door deviation between either a horizontal or a zero-set condition and a determined tilt angle of the bottom bar, producing a deviation signal, determining a stable deviation value from the deviation signal, and setting an electrical deviation condition upon the stable deviation signal reaching a predetermined level. The electrical components produce a visible door power on and door power off condition based upon tilt deviation. The invention further provides a procedure for improving the operation and safety of overhead doors including measuring deviation of the bottom bar of a door from either horizontal or a pre-set zero condition in real time with an electronic inclinometer, restricting the deviation measurement to a single axis of deviation, averaging the real time signal, determining the average signal as below or above a preset limit and then setting a start/stop condition.

Dependencies are inferred from the claim text.