Patent ID: 8746757

Claim:
An apparatus comprising: a longitudinal member having a longitudinal axis with a first end, a second end and an intermediate section extending along the longitudinal axis between the first end and the second end, the first end having an opening at and an axis of the opening extending through a distal end thereof that faces in an outboard direction and coincide with the longitudinal axis of the longitudinal member, the second end being closed and having a slotted section with an inboard portion and the outboard portion; a first anchor assembly configured for mounting to a wall adjacent to a first side of a passageway closure at the first end of the longitudinal member, the first anchor assembly having a first pin, a first wall plate and a first stop plate coupled to opposing ends of the first pin; and a second anchor assembly configured for mounting to the wall adjacent to a second side of the passageway closure at the second end of the longitudinal member, the second anchor assembly having a second pin, a second wall plate and a second stop plate coupled to opposing ends of the second pin, wherein the longitudinal member is configured for transition between a closed, locked position in which the first pin is received in the opening of the first end and the second pin is received in the slotted section of the second end such that the apparatus inhibits opening of the passageway closure, to an intermediate position in which the second pin passes from the outboard portion to the inboard portion along the longitudinal axis of the longitudinal member to cause the first pin to move out of the opening, and then to an open, unlocked position in which the longitudinal member is rotated downward about the axis of the second pin such that the apparatus permits opening of the passageway closure.