Abstract: The pushing in of the push-button of the cylinder lock is detected by detecting the associated motion of the locking rod. An electronic signal is provided upon the detection of such motion. In specific embodiments, the detector consists of a switch mounted on either the locking rod or locking rod cylinder, and an associated cam mounted on either the locking rod cylinder or the locking rod.

Abstract: An actuator assembly is mounted in a housing and is actuatable by a solenoid carried in the housing. The housing also includes, integral therewith, a card reading arrangement.

Abstract: An actuator assembly is mounted in a housing and is actuatable by a solenoid carried in the housing. The housing also includes, integral therewith, a card reading arrangement.

Abstract: A positive deadbolt locking system having a spring-biased deadbolt normally biased toward a retracted unlocked position or selectively and alternatively toward an overcenter locked position. The deadbolt is selectively in the fully unlocked or fully locked position of the locking system.

Abstract: An actuator assembly having a clutch mechanism with an input disc and an output disc. Mechanisms are provided for rotating the input disc and preventing rotation of the output disc with the input disc when the assembly is in a rest condition, and for effecting a rotation transmitting connection between the input disc and the output disc when the assembly is in an actuated condition. A mechanism is also provided for automatically returning the assembly from the actuated condition to the rest condition: (1) if the first input disc is rotated within a given time delay, upon the rotation; or (2) if the first disc is not rotated within the given time delay, upon the expiration of the time delay. Thus, the second output disc can be rotated only once within the time delay, and the second disc is not rotatable at all if the first disc is not rotated within the time delay.

Abstract: A padlock comprising a body having a pair of parallel bores therein adapted to receive the legs of a shackle, and a shackle having a pair of parallel legs slidably received in said bores. A locking means is positioned within the padlock body to secure the shackle in the body when the legs are depressed into the bores. An interchangeable means, such as a standard cylinder lock, is provided for releasing the locking means and includes key-operated means operable by turning movement of a key to effect the release of the shackle from the locking means to allow one of the shackle legs to withdraw from the padlock body. The padlock body has an opening to receive the interchangeable means to permit positioning the interchangeable means within the padlock body. Detachable cover means adapted to close the opening is provided. Fastener means, such as a screw member, operable from within the body, is engageable in fastening relation with the cover means.