Abstract: A housing is provided for placement over a valve in a line to prevent unauthorized access to the valve. The housing includes first and second shell halves. The first and second shell halves are mateable to form an enclosure for the valve, and to form openings through which the line can pass. Each shell half includes a perimetral lip region, an interior surface, and an exterior surface. A lock-receiving bracket is attached to the interior surface of the first shell. The lock-receiving bracket includes an aperture through which a bolt-type lock can pass. A lock-engaging member is attached to the interior surface of the second shell half. The first shell half includes an access opening for inserting the lock into the enclosure. The lock-receiving bracket is aligned with the lock-engaging bracket to permit the lock to be received by both the lock-receiving bracket and the lock-engaging member when the shell halves are mated to lock the first shell half to the second shell half.

Abstract: A key holder which includes a body and a key pivotably mounted on the body and movable between an operating position in which the key is disposed outside of the body and a non-operating position in which the key is housed within the body. The key holder may also include a biasing member for maintaining the key at the operating position thereof or the non-operating position thereof and the key may include a stopper member disposed thereon which is engageable with the body to maintain the key at the non-operating position thereof.

Abstract: A combination lock has a plurality of gated tumbler wheels mounted for rotation relative to a gate entering bar portion of a release lever, blocking a release movement of such lever until gate openings on the tumbler wheels are aligned to said bar and a tumbler locator and lever arm actuator member mounted for both axial and rotative movement relative the axis of rotation of the tumbler wheels. The member has a drive pin engaging, and successively releasable from, drive apertures divided in the tumbler wheels to allow rotation of the tumbler wheels upon rotation of the member and sequential release of located tumbler wheels upon an axial movement of said member relative to said tumbler wheels.

Abstract: A key-operated door locking device includes a conventional rim lock adapted to be mounted to one side of the door and having a bolt projectable and withdrawable with respect to the door frame by means of a dog carried on the lock cylinder and rotatable by the insertion and rotation of the proper key. The locking device further includes a coupling between the cylinder dog and a rotatable member eccentrically mounting three pivotable rods extending completely across the door so as to be projectable and withdrawable from the three remaining sides of the door, the coupling being effective, upon the rotation of the cylinder dog by the proper key, not only to cause the bolt to be projected into or withdrawn from its respective recess, but also to cause the rotatable member to be rotated and thereby to project or withdraw the rods with respect to their respective recesses.