Abstract: A latch assembly having a keyless toggle lock capability and capable of being unlocked by either a low level security key or a master key. When a user rotates the front handle or rear handle the actuator of the latch assembly provides for sliding movement of a sliding element so as to provide for actuation of a latching means.

Abstract: A hook latch for fastening and unfastening a closure member to a keeper in a latched position. The hook latch is moveable between the latched position and an open position. The hook latch comprises a rotation means which preferably comprises a knob connected to a cam shaped protuberance which acts upon an actuator plate and a locking plate. Upon rotation of either the knob or the key which is inserted in a lock cylinder which has a locking ring having a cam-shaped protuberance, the cam-shaped protuberances displace both the actuator plate and the locking plate.

Abstract: A slide latch assembly having a keyless toggle lock capability and capable of being unlocked by either a low level security key or a master key. When a user lifts up on the front grip piece or the rear grip piece of the latch assembly, a dual pawl rotary latch is opened so that the latch assemble can then be latched to a keeper. The lock cylinder can be provided with either a master annular ring on the front of the lock plug which can only be opened by a master key or a low level security annular ring which permits the lock cylinder to be opened by either the master key or the low level security key.

Abstract: A lock cylinder having a master key capability wherein the lock cylinder can be provided with either a master annular ring on the front of the lock plug which can only be opened by a master key or a low level security annular ring which permits the lock cylinder to be opened by either the master key or the low level security key.

Abstract: A hook latch for fastening and unfastening a closure member to a keeper in a latched position. The hook latch is moveable between the latched position and an open position. The hook latch comprises a rotation means which preferably comprises a knob connected to a cam shaped protuberance which acts upon an actuator plate and a locking plate. Upon rotation of either the knob or the key which is inserted in a lock cylinder which has a locking ring having a cam-shaped protuberance, the cam-shaped protuberances displace both the actuator plate and the locking plate.

Abstract: A lock cylinder having a master key capability wherein the lock cylinder can be provided with either a master annular ring on the front of the lock plug which can only be opened by a master key or a low level security annular ring which permits the lock cylinder to be opened by either the master key or the low level security key.

Abstract: A slide latch assembly having a keyless toggle lock capability and capable of being unlocked by either a low level security key or a master key. When a user lifts up on the front grip piece or the rear grip piece of the latch assembly, a dual pawl rotary latch is opened so that the latch assemble can then be latched to a keeper. The lock cylinder can be provided with either a master annular ring on the front of the lock plug which can only be opened by a master key or a low level security annular ring which permits the lock cylinder to be opened by either the master key or the low level security key.

Abstract: A latch assembly having a keyless toggle lock capability and capable of being unlocked by either a low level security key or a master key. When a user rotates the front handle or rear handle the actuator of the latch assembly provides for sliding movement of a sliding element so as to provide for actuation of a latching means.

Abstract: A keeper and a latch secures a first member such as a door panel against a second member such as a corresponding frame. The keeper is adapted for attachment to the second member and engages the latch in a fastened position.

Abstract: A latch secures a first member such as a door panel against a second member such as a corresponding frame. The latch comprises a housing for mounting in the first member, a pawl adapted for engaging a keeper in a latched position on the second member and latch actuating means for selectively moving the pawl into a position away from the keeper in order to allow the first member to be opened.

Abstract: A lock having an optional bolting member is described. It includes a lock case having opposed walls and a latch bolt slidable between a locking position and an unlocking position. The optional bolting member includes a holding bolt introducible through an aperture provided in at least one of the opposed walls. The holding bolt is positionable in a first, relatively retracted position allowing sliding of the latch bolt from its locking position to its unlocking position, and in a second, relatively inserted position preventing sliding of the holding bolt from its locking position to its unlocking position. The optional bolting member further includes a biasing member for yieldably retaining the holding bolt in its first and second positions.