Tool for opening a door with engaged swing bar guard

Details Tool for opening a door with engaged swing bar guard Tool for opening a door with engaged swing bar guard

1998-01-07

1999-08-17

Scherbel, David A.

Tools

For lock or latch

81488, B25B 2700

Patent

active

059377135

ABSTRACT:
A tool for disengaging the swing bar from a swing bar guard assembly engaged on an entry door to a room where such disengagement is from outside of the room. The tool is formed from an elongate relatively flat shaft having a proximal handle end and a swing bar guard disengaging distal end. The tool has a centrally-disposed generally right-angle Z-bend for accommodating a door stop so that the distal end can be located inside the room when the door is shut. The distal end is centrally hinged to form an outer distal segment and an inner distal segment. The distal end also is biased to rotate the outer distal segment out of alignment with the inner distal segment. The tip of the outer distal segment retains an upstanding rod for contacting the swing bar of the swing bar guard. The inner distal segment retains a trigger mechanism which holds the inner and outer distal segments in alignment and which is actuable by the action of the door closing to release the biased outer distal segment to rotate about its hinge, whereby the upstanding rod can disengage the swing bar. The corresponding method for disengaging the swing bar from a swing bar guard assembly engaged on an entry door to a room, where such disengagement is from outside of the room, includes inserting the tool into a partly open door and closing the door to activate a trigger mechanism on the tool to disengage the swing bar of the swing guard assembly.

REFERENCES:
patent: 4048873 (1977-09-01), Stevens
patent: 4561271 (1985-12-01), Scharboneau
patent: 5018415 (1991-05-01), Hawley

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