Patent ID: 7057510
Filing Date: 2006-06-06
Classification: E05B,E05G,G08B

Abstract:
1. A door condition sensor for a chamber having an entry door and a door frame therefor comprising: a. a sensor housing adaptable for mounting on an inside surface of the door; b. frame engageable means for abutting the door frame when the door is completely closed, the frame engageable means being slideably mounted in the sensor housing and confined to linear displacement therein; c. rotatable driver means rotatably mounted in the sensor housing at a fixed axial location therein, the rotatable driver means being rotatably driven by the frame engageable means, the rotatable driver means for transforming linear displacement of the frame engageable means into corresponding rotational orientation of the rotatable driver means; d. analog signal generator means mounted in the sensor housing having a rotatable part driven by the rotatable driver means and having an axis coinciding with the fixed axial location in the sensor housing, the analog signal generator means for producing analog signals corresponding to the rotational orientation of the rotatable part of the analog signal generator means; and e. biasing means for extending a part of the frame engageable means away from the sensor housing and for maintaining the frame engageable means against the door frame when the door is completely closed.