Abstract: A movable barrier system with a moving-barrier imminent motion notification includes a movable barrier and a movable barrier operator connected to control movement of the movable barrier between a first position and a second position. To reduce user dissatisfaction with the moving-barrier imminent motion notification, communications to the movable barrier operator include information to assist the operator in determining whether to operate the moving-barrier imminent motion notification in combination with moving the door or to specifically command that the moving-barrier imminent motion notification operate or not. The communication may include a signal or input separate from and in addition to a typical command signal or input to the operator.

Abstract: A combination lock monitoring system for recognizing and indicating electronically the condition of operation of the lock, the recognition being achieved by photo sensitive means responding to the light reflecting quality of areas on the lock bolt mechanism, the lock drop arm and a combination wheel of the combination lock, the electronic circuit responding through a binary code to the condition of the photo sensitive means, and the indication including a visual display.

Abstract: An antitheft device adapted for attachment to the valve stem of an inflated vehicle tire may comprise: a plunger assembly including a plunger engageable with a valve core of the valve stem and axially movable relative thereto for forcing the valve core to an open position releasing air from the tire; and an actuator assembly including a cam member radially movable with respect to the axis of the plunger in response to rotation of the vehicle tire, from a passive position to an active position forcing the plunger toward opening of the valve core.

Abstract: An auxiliary portable lock which comprises a housing, a lock body receivable within said housing, and adapted for axial rotation therein, said housing being internally communicative with a tubular casing axially normal to the longitudinal axis of said housing and being open at its opposite ends. There is an elongated locking bar having a serrated surface provided for extension through said tubular casing and having integrally formed at one of its ends, a door-engaging portion. A cooperative serrated member is provided within said housing for movement toward and away from the confronting portion of said locking bar for maintaining same in selected disposition; said cooperative serrated member is operatively engaged to said lock body which latter, through rotative movement effects translation of said cooperative serrated member. A door engaging element is formed at one end of said tubular casing. Key control components are provided to secure said lock body to said housing.