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 flush mounted latch for a sliding panel or pocket door includes a snap-in, installation, from the edge of the panel or door. A slide handle operates a pair juxtaposed, pivoting, keeper-engaging, hooks to open them. The handle carries a lock rod which is engaged by a privacy knob operated from the inside of the latch or a lock cylinder/lock plug operated from the outside of the latch. A case/housing encloses the latch mechanism with two walls. Each case wall has side top-edge flanges that seat on respective face of the door. A plurality of screws and threaded studs are utilized to adjust the distance between the two opposing flanged housing walls to accommodate variances in door thickness. A first gasket seals the case/housing adjacent its outside wall. A second gasket seals the case housing and slide handle adjacent the inside wall. Cover plates are included on both sides of the latch.

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 flush mounted latch for a sliding panel or pocket door includes a snap-in, installation, from the edge of the panel or door. A slide handle operates a pair juxtaposed, pivoting, keeper-engaging, hooks to open them. The handle carries a lock rod which is engaged by a privacy knob operated from the inside of the latch or a lock cylinder/lock plug operated from the outside of the latch. A case/housing encloses the latch mechanism with two walls. Each case wall has side top-edge flanges that seat on respective face of the door. A plurality of screws and threaded studs are utilized to adjust the distance between the two opposing flanged housing walls to accommodate variances in door thickness. A first gasket seals the case/housing adjacent its outside wall. A second gasket seals the case housing and slide handle adjacent the inside wall. Cover plates are included on both sides of the latch.

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.