US 12,031,380 B1
Lockout tool assembly for automatic closing fire-rated roll up doors
Reed Richard Figley, Los Alamos, NM (US)
Assigned to TRIAD NATIONAL SECURITY, LLC, Los Alamos, NM (US)
Filed by Triad National Security, LLC, Los Alamos, NM (US)
Filed on Nov. 20, 2023, as Appl. No. 18/514,604.
Int. Cl. E06B 9/80 (2006.01)
CPC E06B 9/80 (2013.01) [E06B 2009/802 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method for locking open a fire-rated roll up door, the method comprising:
installing a first lockout plate and a second lockout plate onto a mounting plate of a roll-up door assembly;
coupling a lockout tool member onto a roll-up door axle of the roll-up door assembly via a coupling member of the lockout tool member;
positioning a crossbar restraint shaft member of the lockout tool member against an edge of the mounting plate; and
rotating the first lockout plate and the second lockout plate such that a crossbar restraint receiving aperture is formed around the crossbar restraint shaft member.