A weather resistant tumbler lock has an elongated body, and defines a longitudinal axis. The lock is interchangeable with another lock having a corresponding asymmetrical perimeter profile with an opening in a top surface sealed with a cap, the other lock having a different rotatable core and a different configuration of tumblers. A drainway provides a channel for water to flow outwardly from the interior of a shell housing, a rotatable core and a keyway within the core, to a drain below the lock. The drain connects to a channel through a lower edge. The core provides an arcuate gap in a lower quadrant adjacent the interior surface of the shell for fluid communication with the drainway. A method includes identifying a substitute tumbler lock with an impermeable outer wall for replacing another lock having an identical outer perimeter profile and a permeable closed opening on its top surface.

A lock system having a redundant entry system is provided. The lock system includes a container having a door with an inner wall and an outer wall defining a wall volume therebetween; a locking bolt including a tip; a housing mounted to the inner wall, the housing for receiving the locking bolt, the locking bolt movable between a blocking position and a non-blocking position; a post mounted on the inner wall; a bolt works having an elongate slot there on, the elongate slot slidingly received by the post and configured to allow the bolt works to move between a locked position and an unlocked position.

A lock assembly for a door includes a lock mechanism moveable between an extended position wherein the door is locked and a retracted position wherein the door is unlocked such that the door may be opened and closed. The lock assembly also includes first and second lock cylinders operably connected to the lock mechanism such that actuation thereof causes the lock mechanism to move to the retracted position, the lock cylinders each including a first keyhole. A tamper resistant member is moveable between a protected position in which the keyhole of the second cylinder is inaccessible and an unprotected position in which the keyhole of the second cylinder is accessible, such that a tool is required in order to move the tamper resistant member from the protected position to the unprotected position, the tool adapted to be stored separately from the door.

Described herein are example fluid guards that can be used with locking devices. Various aspects may be particularly applicable to electrical locks, but they may also be applicable to mechanical locks. A locking device guard can include a guard head, a guard body, and a hinge. The guard head may include a fluid absorber, a frame that is shaped to receive the fluid absorber, and a fastening mechanism. The guard body can be coupled with an electronic lock. The guard body can include an aperture that is configured to expose a face of the electronic lock.

A core replaceable hockey lock includes a first end face and a second end face. The first end face includes a first cavity, a second cavity, a third cavity and a fourth cavity. The end face includes a core hole which communicates with the second cavity. A lateral hole is defined radially in the lock and communicates with the first and fourth cavities. A locking member is located in the second cavity and includes a connection portion connected to the transmission portion, and a stop plate which slides in the third cavity when the locking member is rotated. A locking part is located in the fourth cavity. A shackle is located in the lateral hole and includes a neck located corresponding to the fourth cavity and the locking part. The first cavity and the core hole are parallel to each other. The core is replaceable by removing the cover.

The opening control includes a handle, movable in rotation relative to the casing at least between leveling, ejection and opening positions, an ejection lever connected to the handle by at least one common axis of rotation with this handle and an electric actuator for controlling a pivoting of the ejection lever between at least one ejection position and a non-ejection position. In particular, the opening control includes a biasing member connected to the ejection lever and configured to exert a force for returning the lever towards the ejection position according to an ejection direction of rotation, and means for blocking the lever in its non-ejection position. The blocking means are capable of cooperating with the lever in order to release the lever when the handle is displaced in a direction of rotation opposite to the ejection direction, by application of an external push force on the handle.

The present invention is inherent to a swing-type Shape Memory Alloy (SMA) actuator (10) comprising a stationary frame (11) and a swingable part (12) that are coupled by means of a pivot (13) allowing the swing of the swingable part (12), two SMA wires (14, 14) being engaged to two connecting elements (15, 15) present respectively on a left and right portion of the swingable part (12) and vertically separated from the pivot (13), such that the activation of one of the SMA wires (14, 14) causes the swing of the swingable part (12) in either the clockwise or counter-clockwise direction.

A delayed return mechanism, such as for a door latch, including a housing having a hole with an axis, a cavity in the housing at least partially filled with a fluid media, a hub disposed in the cavity including a spindle hole coaxial with the hole in the housing including teeth within the spindle hole to engage a spindle, the hub being rotatable about the axis and having a fin extending radially outward in the cavity, and a channel through which the fluid media passes during rotation of the hub to control flow of the fluid media about the cavity.

Described herein are example fluid guards that can be used with locking devices. Various aspects may be particularly applicable to electrical locks, but they may also be applicable to mechanical locks. A locking device guard can include a guard head, a guard body, and a hinge. The guard head may include a fluid absorber, a frame that is shaped to receive the fluid absorber, and a fastening mechanism. The guard body can be coupled with an electronic lock. The guard body can include an aperture that is configured to expose a face of the electronic lock.

A lock includes: a plug housing rotatable about a central axis to unlatch a closure when the lock is in an unlocked state, wherein the plug housing defines a plug passage therein along the central axis and an intersecting pin slot through a side wall thereof; a plug rotatable within the plug passage to transition the lock between unlocked and locked states, wherein an inner portion thereof defines a helical groove that extends into the intersection of the plug passage and pin slot; and a stop linearly movable parallel to the central axis between inward and outward positions to place the lock in unlocked and locked states, respectively, wherein a stop pin of the stop extends through the pin slot and into the helical groove to interact therewith such that turning the plug causes the stop to linearly move between the inward and outward positions.