Patent ID: 11970889
Assignee: UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. An emergency egress apparatus in combination with a door barricade, the combination comprising:
a first portion of the door barricade comprising a faceplate and a faceplate extension that is substantially perpendicular to the faceplate, the faceplate having a receiver configured to receive a knob of a door, and the faceplate extension having a first indexing feature and a clamping screw extending therefrom; and
a second portion of the door barricade comprising a backplate and a backplate extension that is substantially perpendicular to the backplate, the backplate having a backlash cam coupled thereto and configured to provide an interference fit between the backplate and a frame of the door, and the backplate extension being adjacent and in sliding relation to the faceplate extension and having a second indexing feature and a groove configured to receive the clamping screw of the faceplate extension,
wherein the clamping screw of the faceplate extension is in sliding relation to the groove of the backplate extension such that the first and second indexing features are in sliding relation in order to position the backlash cam in close conformity with an outer edge of the frame of the door, and wherein the clamping screw is configured to be tightened within the groove and secure a position of the faceplate extension relative to the backplate extension.