Abstract: A request-to-exit (REX) switch comprises an injection-molded plastic body that can snap into the access hole of a mortise lock mechanism to provide a request-to-exit contact generation. A micro-switch mounts to a distal end of the injection-molded plastic body. Such is precisely oriented, positioned, and secured by pressing onto two posts molded into the distal end. The installation is accomplished without tools, and two snap locking tabs in the injection-molded plastic body automatically secure to the access hole of the mortise lock mechanism. An orienting lip on a front cap of the injection-molded plastic body allows only one possible fit. A strain relief for wiring to the micro-switch is a part of the injection-molded plastic body.

Abstract: A request-to-exit (REX) switch comprises an injection-molded plastic body that can snap into the access hole of a mortise lock mechanism to provide a request-to-exit contact generation. A micro-switch mounts to a distal end of the injection-molded plastic body. Such is precisely oriented, positioned, and secured by pressing onto two posts molded into the distal end. The installation is accomplished without tools, and two snap locking tabs in the injection-molded plastic body automatically secure to the access hole of the mortise lock mechanism. An orienting lip on a front cap of the injection-molded plastic body allows only one possible fit. A strain relief for wiring to the micro-switch is a part of the injection-molded plastic body.

Abstract: An electrified cylindrical lock having a reversible solenoid that can be easily changed over between active push and active pull. The solenoid includes a coil and an armature that may be assembled for an active push or an active pull of a latch member. The coil has a front end and a rear end. The front coil end always faces toward the latch member and the rear end always faces away from the latch member. The armature includes a magnetic slug. The slug is disposed at the rear coil end for the active push mode or disposed at the front coil end for the active pull mode.

Abstract: An electrified cylindrical lock having a reversible solenoid that can be easily changed over between fail safe and fail secure. The solenoid includes a coil and an armature that may be assembled for an active push or an active pull of a latch member. The latch member locks or unlocks the lock. The coil has a front end and a rear end. The front coil end always faces toward the latch member and the rear end always faces away from the latch member. The armature includes a magnetic slug. The slug is disposed at the rear coil end for the active push mode or disposed at the front coil end for the active pull mode.

Abstract: A reversible solenoid that can be easily changed over between active push and active pull. The solenoid includes a coil and an armature that may be assembled for an active push or an active pull of a latch member. The coil has a front end and a rear end. The front coil end always faces toward the latch member and the rear end always faces away from the latch member. The armature includes a magnetic slug. The slug is disposed at the rear coil end for the active push mode or disposed at the front coil end for the active pull mode.

Abstract: A door alarm system and a door lock assembly having an interior rose having a request to exit (REX) switch. The alarm system generates an open door alarm when a door into a secured area is open unless the REX switch generates a REX signal indicating that the door was opened by someone on the inside of the secured area. Mechanical isolation in the door lock assembly prevents a forcing movement on the outside of the door from causing a false generation of the REX signal.

Abstract: An electrified mortise lock where the same method and articles can be used for electrifying the mortise locks of many manufacturers and styles. The electrified mortise lock includes a solenoid and a cradle. The cradle includes a frame for embracing the solenoid and cradle pins for fixing the solenoid to a housing.

Abstract: A monitor hinge having a magnet plug and a magnetic switch plug. The magnet plug and magnetic switch plug have countersink heads to seat in the hinge fastening holes and insert through juxtaposed hinge holes into drilled holes in the door and wall jambs.

Abstract: An electrified emergency exit device having a normally locked condition and having an operable hold off lock that is accessible from the emergency use side for maintaining an unlocked condition. The emergency exit device includes a star wheel door latch for locking or unlocking a door, a sliding catch having a lock position where the sliding catch is engaged to the door latch for locking the door and a free position where the sliding catch is disengaged from the door latch for unlocking the door, a push bar linkage operable from the emergency use side and coupled for sliding the sliding catch to the free position, a remotely operable solenoid coupled for sliding the sliding catch to the free position, the hold off lock coupled for maintaining the sliding catch in the free position, and a solenoid spring for biasing the solenoid for urging the sliding catch to the lock position when none of the push bar, solenoid, and hold off lock are actuated.

Abstract: An electrified emergency exit device having a normally locked condition and having an operable hold off lock that is accessible from the emergency use side for maintaining an unlocked condition. The emergency exit device includes a star wheel door latch for locking or unlocking a door, a sliding catch having a lock position where the sliding catch is engaged to the door latch for locking the door and a free position where the sliding catch is disengaged from the door latch for unlocking the door, a push bar linkage operable from the emergency use side and coupled for sliding the sliding catch to the free position, a remotely operable solenoid coupled for sliding the sliding catch to the free position, the hold off lock coupled for maintaining the sliding catch in the free position, and a solenoid spring for biasing the solenoid for urging the sliding catch to the lock position when none of the push bar, solenoid, and hold off lock are actuated.

Abstract: A power door loop for providing an electrical connection between a pivoting door and a wall. The door loop includes one or more wires, a flexible armored cable, and housings at each end of the cable. Each housing has a circular bottom end and a perpendicular cylindrical wall. The cable connects into the cylindrical wall. A sleeve having snap latches projects from the bottom end. The wires pass into one sleeve, make a right angle bend in the housing, pass through the cable, make a right angle bend in the other housing, and pass out of the other sleeve. For installation, holes are made in the outer layer of the wall and door for routing or fishing the wires to their destinations. The bottom end of the housing is positioned over the outer surface layer of the door or wall with the sleeve juxtaposed against the hole and the sleeve and wires are inserted through the hole.

Abstract: A door drilling fixture for drilling a long straight longitudinal hole in a door. The fixture includes an elongated frame having a U-shaped cross-section for mounting about the hinged edge of a door and an arm projecting from and pivotally engaged to the frame for guiding a long drill bit. The door is placed between the right and left sections and the door edge flat against the center section of the U-shaped frame. Two hold-down bolts thread through upper and lower portions of the left section of the U-shaped frame to press the door against the right section of the U-shaped frame. Slots in the frame mechanically isolate the upper and lower portions of the left section from the middle portion of the center section. The arm houses two spaced apart drill bushings having a center line for rotationally engaging and guiding the drill bit through the drill bit aperture and into the edge of a door.

Abstract: A hinge for transferring power between a wall jamb and a door. The hinge includes a pair of hinge leaves having interleaved knuckles axially aligned to share a common bore and engaged to allow the door to rotate. At least one cable enters a recess in a rear surface of one hinge leaf, passes through a longitudinal passageway in the hinge leaf, across the common bore, through a longitudinal passageway in the other hinge leaf, and exits a recess in the rear surface of the other hinge leaf. The passageways are aligned or accessible from the common bore and have tapered openings to enable the cable to be routed or fished after the hinge is mechanically assembled.

Abstract: A monitor hinge having a rotary switch or potentiometer that is concealed within knuckles of the hinge for providing an indication when a door or a window is open. A monitor cable connects terminals on the rotary switch or potentiometer through the hinge to an external monitoring apparatus. An optional power transfer cable passes power or a signal through the hinge between a wall and a door or a window.

Abstract: An arm sling for supporting an arm holding a baby. The arm sling includes a shoulder loop and an arm strap extending from the shoulder loop. The end of the arm strap is detachably fastened to the front of the shoulder loop with Velcro to make an arm support loop having an adjustable length for supporting the arm holding the baby. When not in use, the arm sling may be folded and squeezed into a compact bundle and stowed in a pants pocket.

Abstract: A hinge for transferring power between a wall jamb and a door. The hinge includes a pair of hinge leaves having interleaved knuckles axially aligned to share a common bore. The hinge pivots about upper and a lower pins disposed in the common bore. A coaxial cable enters a recess in a rear surface of one hinge leaf, passes through a longitudinal passageway in the hinge leaf, across the common bore, through a longitudinal passageway in the other hinge leaf, and exits a recess in the rear surface of the other hinge leaf. The passageways are aligned and have tapered openings to enable the cable to be routed after the hinge is mechanically assembled.