Abstract: A dead bolt lock system having one or more security locks in conjunction with a dead bolt to provide various levels of security access to a door. An inertia assembly restrains movement of the dead bolt when a shock load is applied to the door, but allows the dead bolt to move when a shock load is not present. The inertia assembly includes an actuator weight and a bolt lock lever that can translate and rotate in response to the application of the shock load. In addition, the inertia assembly includes a return spring that biases the inertia assembly back into its original position for facilitating movement of the dead bolt after the application of the shock load.

Abstract: A system for use with a emergency exit door, comprising: a door opener including a stationary actuator with a movable distal arm for pushing the door open; a door strike mountable to a door frame having an opening to receive a latch of the emergency exit door, the electric door strike including a gate having a locked condition and a release condition; a controller connected to the door opener and the door strike; a remote activator having a triggered condition, which provides a signal to the controller when the remote activator is triggered, to unlock the gate and then the door opener, to open the emergency exit door.

Abstract: A magnetic lock structure is disclosed. The lock comprises a metallic plate mounted at the edge of a door panel; a lock body mounted within the door frame of the door panel at a position corresponding to the metallic plate, and at least one end of the lock body being a control section interiorly mounted with a video lense, and the lock body generates a magnetic force when the door panel is closed to attract the metallic plate and if the door opened, the video lense is triggered to monitor the surrounding of the door.

Abstract: A control assembly configured for a narrow stile door and for interaction with an exit device. The control assembly provides a means to translate user input, such as rotating a lever to operate a centercase. The control includes a slider for sliding movement within a housing between a first position extending a latchbolt of the exit device and a second position withdrawing the latchbolt. The control assembly configuration incorporates a swivel locking latch rotatable into the path of the slider to prevent the slider from moving out of the first position.

Abstract: A door lock transmission mechanism is provided on the first surface of a door for transmitting movement to a door lock provided on the second surface of the door opposite to the first surface. The door lock transmission mechanism includes a lock casing unit, an actuation mechanism, and a locking mechanism. The actuation mechanism includes a traction member having a traction portion for driving a locking seat of a core unit of the locking mechanism, wherein the locking seat can rotate freely when the locking mechanism is locked, such that an actuation member of the actuation mechanism can be pressed down by force and keeps the locking state of the door lock, and thus the parts of the door lock transmission mechanism can be protected from being damaged.

Abstract: A door handle assembly which is compact in size for space-efficient packaging in a door of an automotive vehicle. The assembly includes a safety system for preventing inadvertent movement of the handle to an unlatched position during a side impact collision. A counterweight is mounted in the handle assembly which, during relative motions of parts induced by acceleration from a side impact, resists unlatching the handle. The counterweight is rotatably mounted on an axis different from an axis of the handle latch control mechanism, and is not fixedly attached to the handle mechanism.

Abstract: An exit sensor bar for securing a door has an elongated housing and a mounting pad for mounting to a door. A circuit board assembly is disposed within the elongated housing in proximity to a blade of the mounting pad. The circuit board assembly includes at least an electro-optical source and an electro-optical detector coupled to a lock. The electro-optical detector selectively energizing and de-energizing the lock in response to the detection of light emitted from the electro-optical source. When a push force is applied to the elongated housing, the housing is displaced toward the mounting pad such that the blade obstructs light emitted from the electro-optical source. In response to the non-detection of the emitted light, the electro-optical detector de-energizes the lock freeing the door for egress.

Abstract: A walk-in chamber has a door opening closable by a door, which, when in the closed position can be either in a locked position or an unlocked position, dependent on the locking device, which includes a sliding bolt engageable with a locking bolt. To enable a person in the chamber to disengage the locking device, a safety mechanism is provided which enables moving the sliding bolt from an engaging position to a retracted position to enable a person to open the door.

Abstract: A dead bolt lock system which may use one or more security locks in conjunction with a dead bolt to provide various levels of security access to a door. Generally, the lock system tests the condition of the security lock or locks before allowing retraction of the dead bolt. An inside escape lever is provided as a life safety feature to allow egress from the secured area regardless of the conditions of the security locks. A trigger hold back device maintains the dead bolt in a retracted position until the door has been opened and closed again. Lock covers include associated locked-on-by-combination and relock features. A night latch or lock down feature is provided to prevent access, including authorized access through the outside of the lock system. A force blocking assembly is provided to prevent force applied to the dead bolt from harming internal components of the system. A torque override clutch prevents excessive torque applied to the outside door handle from harming internal lock system components.

Abstract: Anti-panic opening system for doors in which a lateral spring latch bolt (3) is actuated by an actuator assembly (10) including a first and a second movable actuating member (19, 20) designed to operate respectively in a first position in which the spring latch (3) protrudes from one side of a covering case (9) and in a second position, turned over by 180° relative to the first position, in which the spring latch (3) projects from the opposite side of the covering case (9).

Abstract: The present invention relates to a locking device for doors with mortise sashlock and remote-controlled door opener or pull or push plates, intended to be openable without being influenced by the spring bolt. The invention is characterized in that the lock also comprises a stop (6) to achieve a blocking position for the spring bolt (3), which stop in closed position, with the dead-bolt in locking position keeps the stop in inactive position, and with the dead-bolt in unlocked position releases the stop to a position where, in cooperation with the spring bolt (3), it keeps the door closed.

Abstract: A walk-in freezer door system has a doorjamb with sheets of metal covering a body of thermal insulation. A door is mounted to the doorjamb. A deadbolt housing is mounted to the outside of the doorjamb with a deadbolt mounted for reciprocal movement within the housing between a door locked and a door unlocked position. A handle is rotatably positioned inside of the doorjamb from which a shaft extends into the deadbolt housing and into operative association with the deadbolt. A longitudinal portion of the handle shaft is made of a low thermal conductive plastic. A keeper is mounted to the door in a position to receive the deadbolt with the door located within the doorjamb.

Abstract: An emergency release for a door lock that is to be mounted to a door includes a lock unit having handles and a lock, one of the handles being associated with the lock and the other not associated therewith, a latch unit having a latching bolt, wherein the lock, when set, prevents retraction of the latching bolt by rotation of the handle associated with the lock, but does not prevent the retraction by rotation of the other handle, a linking unit having latch retraction means and a holding element, and a sensor unit having a sensor door. The sensor door is opened in response to a predetermined pressure change across the door on which the door lock is mounted and is connected to the holding element so that the holding element actuates latch retraction when the sensor door is opened for retracting the bolt independently of the lock unit.

Abstract: This is invention provides a touch bar exit device for a door having an active case attached to the door and an inactive case attached to the door. A touch bar assembly is releasable attached to the active case and the inactive case.

Abstract: A vertical panic exit device is interchangeably mountable on either left-hand opening or right-hand opening doors and comprises a latch mechanism for engagement with a strike mounted to a doorjamb to alternately transition a door mounted to the jamb in a latched and unlatched configuration. A central portion includes a push bar; an action rod interlinked to said push bar such that a depression of the push bar causes the action rod to be translated in a direction orthogonal to the push bar, and a center case mechanism movable between a latched and an unlatched position. The center case mechanism comprises a housing, and a main link carriage horizontally slidably mounted within the housing. The main link carriage is linked to and is acted upon by the action rod for translation between the latched and unlatched position. An actuator link has a first end pivotally attached to the main link carriage. A pivoting member is pivotally mounted to the housing and has first and second pivotal attach points.

Abstract: A dead bolt lock system which may use one or more security locks in conjunction with a dead bolt to provide various levels of security access to a door. Generally, the lock system tests the condition of the security lock or locks before allowing retraction of the dead bolt. An inside escape lever is provided as a life safety feature to allow egress from the secured area regardless of the conditions of the security locks. A trigger hold back device maintains the dead bolt in a retracted position until the door has been opened and closed again. Lock covers include associated locked-on-by-combination and relock features. A night latch or lock down feature is provided to prevent access, including authorized access through the outside of the lock system. A force blocking assembly is provided to prevent force applied to the dead bolt from harming internal components of the system. A torque override clutch prevents excessive torque applied to the outside door handle from harming internal lock system components.

Abstract: The locking mechanism described herein is for use in an enclosure, which is part of a product delivery system. The locking mechanism uses existing locks and latches, and configures them using linkages into a mechanism that is not currently available. The mechanism has a latch that holds the door of the enclosure closed. This latch stays in a normally unlocked state until deliberate acts are taken to lock the latch. When a delivery is made, the delivery person opens the unlocked door, makes the delivery, and then closes the door and turns the rotary latch counter clockwise until it latches in the locked position. There are three independent and distinct ways to unlock the mechanism: (1) a key can be used to unlock the mechanism; (2) a combination lock can be used to unlock the mechanism; or (3) an emergency release paddle, for child safety is located on the lower back cover of the lock, and can be pushed to unlock the mechanism.

Abstract: A latch mechanism is provided for a door which includes a rotatable latch which is rotated into and held in an open position to allow the door to open, and is released from the open position only when a sensing mechanism provided as a part of the latch mechanism, held in the door, senses the door frame upon a closing of the door. The latch is held in an over center engaged position which it is moved into due to a lost motion connection among some, but not all, elements of the latch mechanism.

Abstract: A dead bolt lock system which may use one or more security locks in conjunction with a dead bolt to provide various levels of security access to a door. Generally, the lock system tests the condition of the security lock or locks before allowing retraction of the dead bolt. An inside escape lever is provided as a life safety feature to allow egress from the secured area regardless of the conditions of the security locks. A trigger hold back device maintains the dead bolt in a retracted position until the door has been opened and closed again. Lock covers include associated locked-on-by-combination and relock features. A night latch or lock down feature is provided to prevent access, including authorized access through the outside of the lock system. A force blocking assembly is provided to prevent force applied to the dead bolt from harming internal components of the system. A torque override clutch prevents excessive torque applied to the outside door handle from harming internal lock system components.

Abstract: There is a lock release apparatus for providing delayed passage past a movable barrier such as an exit door which is held to a closed position by a lock. The apparatus includes a beam transmitter, a beam receiver, a timer for releasing the lock after a predetermined delay, a trigger associated with the timer and a beam reflector affixed to an operating bar on the movable barrier. In use of the apparatus when the barrier is closed and locked the transmitter directs a beam onto the reflector at an orientation such that reflection is detected by the beam receiver when the operating bar is undisturbed. Subsequent movement of the operating bar to open the barrier terminates or shifts the reflection away from the receiver to trigger the timer to release the lock after the predetermined delay.

Abstract: A door release device (10) includes a pivot bar (40) on which a push plate (44) and an actuator (48) are mounted. The actuator (48) is aligned with a door latch handle (20) and the fixed end of pivot bar (40) is pivotable about a pivot pin (42) carried in its associated mounting bracket (28b). The active end of the pivot bar (40) is freed to move within its associated mounting bracket (28a) by removal of the pivot pin (42) associated with bracket (28a). The door release device (10) is used by pushing on push plate (44) or pivot bar (40) to advance actuator (48) against door latch handle (20) to open the door. A method for securing door release device (10) to a door (12) includes securing the mounting brackets (28a, 28b) to door (12) with one end of pivot bar (40) positioned to align actuator (48) with door latch handle (20), and removing the pivot pin (42) from the mounting bracket adjacent to door latch handle (20).

Abstract: An emergency release system for door lock is disclosed, which includes a lock unit having handles and a lock, one of the handles being associated with the lock and the other not associated therewith, a latch unit having a latching bolt, wherein the lock, when set, prevents retraction of the latching bolt by rotation of the handle associated with the lock, but does not prevent the retraction by rotation of the other handle, a linking unit having latch retraction means and holding means, and a sensor door unit having sensor door means. The sensor door means is openable by means of a pressure difference across the door, and is connected to the holding means so that the holding means actuates the latch retraction means when the sensor door means is opened, for retracting the bolt independently from the lock unit.

Abstract: The panic exit device includes several features which improve its ease of use and operability over earlier devices including: (1) an improved latch deadlocking mechanism; (2) an improved latch to pad mechanism; (3) a pad lock down feature; (4) an improved universal mounting plate and easily mounted strike; and (5) a vertical rod-bottom bolt deadlocking mechanism in its center case. The latch deadlocking mechanism includes a deadlock link, which in the event of a fire, will block the movement of the latch bolt.

Abstract: A freezer door handle and lock assembly comprises a pull handle having a mounting end formed with a slot that is adapted to be mounted to a freezer door. A deadbolt is mounted in the pull handle mounting end for reciprocal movement along a path of travel between deadbolt locking and unlocking positions. A manual push bar extends from the deadbolt to the exterior of the handle mounting end through the mounting end slot. Means are provided for locking the deadbolt in its locking position. A strike is also provided for receiving the deadbolt.

Abstract: There is a lock release apparatus for providing delayed passage past a movable barrier such as an exit door which is held to a closed position by a lock. The apparatus includes a beam transmitter, a beam receiver, a timer for releasing the lock after a predetermined delay, a trigger associated with the timer and a beam reflector affixed to an operating bar on the movable barrier. In use of the apparatus when the barrier is closed and locked the transmitter directs a beam onto the reflector at an orientation such that reflection is detected by the beam receiver when the operating bar is undisturbed. Subsequent movement of the operating bar to open the barrier terminates or shifts the reflection away from the receiver to trigger the timer to release the lock after the predetermined delay.

Abstract: A plurality of doors in a structure, wherein each door comprises a locking apparatus and an access arrangement. The access arrangement comprises a housing unit and a plurality of alternatively interchangeable inserts configured to be inserted into said housing unit. The inserts are also configured to permit access through a corresponding door. The inserts are designed to have different access configurations, such as a cylinder lock or an electronic code lock. Differently configured inserts can be interchangeably inserted into the housing to change the access configuration at a corresponding door without having to change the housing.

Abstract: An improved exit alarm lock including a push pad moveable between an extended position and a depressed position; a pivotable first bell crank, a first end of the first bell crank being connected to a first end of the push pad; a pivotable support connected to a second end of the push pad; and a deadbolt moveable between a retracted position and an extended position, a second end of the first bell crank directly engaging the deadbolt, whereby when the push pad is moved to the depressed position, the push pad pivots the first bell crank, the first bell crank second end contacts the deadbolt and moves the deadbolt from the extended position to the retracted position.

Abstract: A plurality of doors in a structure, each said door comprising: locking apparatus; said locking apparatus having at least a first position for unlocking said door, and a second position for locking said door; an access arrangement; and said access arrangement comprising: a housing unit; a plurality of alternatively interchangeable inserts; said plurality of alternatively interchangeable inserts each comprising a first part; said plurality of inserts each being configured to permit access through its corresponding door upon an authorized manifestation; said housing unit having an insertion opening; said insertion opening being configured and dimensioned to interchangeably receive said first part of each and every one of said plurality of inserts; said insertion opening being configured to surround a substantial portion of said first part; said insertion opening being configured to receive solely one insert at a time; said plurality of inserts comprising at least a first insert and a second insert; said first i

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 latch assembly comprising a latch frame mounted to a door. A latch bolt is mounted to the latch frame for pivotal movement between a biased position extended position and a retracted position. The latch bolt includes a tip portion with opposing planar locking and shaped engagement surfaces. A link is pivotally mounted to the frame for movement between a biased blocking position and a release position. In the blocking position the link prevents movement of the latch bolt from the extended position. A push bar pivots the link to the release position in response to an applied force. A frame bolt is mounted to a door frame for linear displacement between a position projecting from the door frame and a position displaced toward the door frame. The frame bolt includes opposing engagement and planar locking surfaces. When the door is closed the planar locking surfaces are in opposing surface-to-surface contact securing the door to the frame.

Abstract: An exit bar for securing a door has a housing assembly adapted for mounting to a door. A push pad for receiving a push force is mounted to the housing assembly. A latch is pivotable relative to the housing assembly to releasably latch the door to which the exit bar is mounted. A mechanical retraction system links the push bar to the latch so that a push force exerted on the push pad releases the latch. A selectively operable electromagnet is disposed within the housing assembly. An electromagnetic retraction system links the electromagnet to the latch independently of the mechanical retraction system so that selective operation of the electromagnet retracts the latch. The electromagnet further dogs the electromagnetic retraction system, and thereby the latch, in the retracted condition as long as the electromagnet receives power. The push bar and mechanical retraction system may be dogged by the electromagnet upon the first exertion of a push force thereon.

Abstract: The panic exit device includes several features which improve its ease of use and operability over earlier devices including: (1) an improved latch deadlocking mechanism; (2) an improved latch to pad mechanism; (3) a pad lock down feature; (4) an improved universal mounting plate and easily mounted strike; and (5) a vertical rod-bottom bolt deadlocking mechanism in its center case. The latch deadlocking mechanism includes a deadlock link, which in the event of a fire, will block the movement of the latch bolt.

Abstract: In a preferred embodiment, an apparatus for detecting the presence of, and providing for the release of, a person in a vehicle trunk compartment, including: a presence detector system to detect motion in the vehicle trunk compartment; and upon detection of motion in the vehicle trunk compartment, the presence detector system causes the activation of one or more functions selected from the group consisting of: a vehicle operator alert, vehicle headlights, a vehicle horn, a vehicle alarm, a self-contained alarm, a trunk lid release and, a trunk light.

Abstract: The panic exit device includes several features which improve its ease of use and operability over earlier devices including: (1) an improved latch deadlocking mechanism; (2) an improved latch to pad mechanism; (3) a pad lock down feature; (4) an improved universal mounting plate and easily mounted strike; and (5) a vertical rod-bottom bolt deadlocking mechanism in its center case. The latch deadlocking mechanism includes a deadlock link, which in the event of a fire, will block the movement of the latch bolt.

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 push-bar for doors in general, which comprises a bar element provided, at its ends, with couplings for connection to a door; the particularity of said push-bar is the fact that it is provided with a threaded bar which is arranged inside the bar element, each end of said bar element being connected to lever means which are in turn pivoted at one end to the bar element and, at the other end, to a pusher whose rotation as a consequence of a pressure applied to the bar element causes the rotation of a pawl which is adapted to engage the pivot of the lock of the door in order to turn it for opening, an empty space being provided between the bar element and the surface of the door to which the bar element is connected.

Abstract: An improved door access bar for installation onto a door through which access is controlled by an electrically operated door access system is disclosed in which the door access bar has an electromechanically operable door locking mechanism which is used to selectively lock and unlock the door to thereby control access or egress through the door. The door access locking bar of the present invention incorporates an interlock mechanism to prevent the bolt from being forced into a retracted position by jimmying the locking mechanism to unlock the door. The locking mechanism of the present invention prevents the door from being opened until the electromechanical locking mechanism is operated to do so. The door access locking bar of the present invention operates in a fail-safe manner so that in the event of a power failure it will automatically be in an unlocked position.

Abstract: A latch device, which is especially adapted for an exit bar, incorporates a trigger assembly. When the latch device is retracted and released, as ordinarily occurs when the door is opened, the latch bolt is biased to an intermediate extended position. The trigger engages the rim of the strike plate which in turn releases a retainer arm and allows the latch bolt to project to an extended position within the strike thereby providing a latch function of high integrity.

Abstract: A emergency trunk release apparatus of disclosed, comprised of comprising a lock bypass panel, located inside a trunk compartment. The lock bypass panel consists of an activation switch that is wired in parallel with a vehicle's electric trunk release such that its actuation will cause the trunk to open. The activation switch is a depression-type activation switch with an enlarged pad surface that allows it to be found easily in a dark trunk environment. The activation switch may be illuminated by any conventional means, so as to facilitate viewing in the darkness of the trunk. The present invention also includes a manual deactivation switch that takes the present invention temporarily out of service during times where cargo may accidentally activate the activation switch. It is envisioned that the present invention may be installed as a retrofit kit on existing automobiles or as original equipment on new vehicles.

Abstract: The panic exit device includes several features which improve its ease of use and operability over earlier devices including: (1) an improved latch deadlocking mechanism; (2) an improved latch to pad mechanism; (3) a pad lock down feature; (4) an improved universal mounting plate and easily mounted strike; and (5) a vertical rod-bottom bolt deadlockig mechanism in its center case. The latch deadlocking mechanism includes a deadlock link, which in the event of a fire, will block the movement of the latch bolt.

Abstract: An exit bar for securing a door has a housing adapted for mounting to a door. A push pad for receiving a push force is mounted to the housing. A latch extends from the housing to releasably latch the door to which the exit bar is mounted. A link system links the push pad to the latch so that a push force exerted on the push pad releases the latch. An electromagnetic lock disposed in the housing locks the link system to prevent releasing of the latch. The electromagnetic lock employs an electromagnet and a movable armature to lock the link system. The exit bar further delays unlocking the link system for a preestablished delay time after the push pad has been pushed.

Abstract: An electromagnetic door lock which uses an electromagnet in addition to a latch to maintain the door in the locked position. The lock has hinged handles that unlock the latch when they pivot. When the latch moves to an unlocked position it operates a reed switch which turns off the electromagnet. The latch can also be unlocked by a remotely controlled solenoid. Key operated locks allow only persons with a key to be able to move the pivoting handles.

Abstract: The present invention is a device which installed in a vehicle that enables a vehicle trunk to be opened from the interior of the trunk and enables at least one of the tail lights to blink. The present invention can be retrofit to existing vehicles by connecting a prepared box and wiring harness to the vehicle power supply, trunk release solenoid, and taillights. The present invention has a ON/OFF switch which enables the circuit controlling the blinking of at least one tail light. A second switch activates the trunk release opening solenoid causing the trunk lock retract opening the trunk. The present invention is mounted in such a way as to be operable by an individual confined to the trunk and be concealed from the casual observer.

Abstract: In an apparatus for the unlocking of doors of a motor vehicle in the event of an accident, at least one device for tensioning a safety belt is, in the case of an accident, operatively connected with at least one door-unlocking device. Operation of the belt tensioning device during an accident initiates operation of the door unlocking mechanism.

Abstract: Paddle handle locks for securing push-pull, paddle-style door latches. In a first preferred embodiment the paddle handle lock is characterized by a handle lock having a frame with parallel side plates separated by spacers and fitted with a clamp arm pivotally attached to one of the spacers. Registering frame pilot holes and clamp arm pilot holes facilitate locking the clamp within the frame, such that the respective spacers prevent movement of the paddle door handle upon which the handle lock device is mounted. The padlock can be removed to allow pivotal extension of the clamp arm and manipulation of the door handle or removal of the handle lock from the door handle, to render the door latch operable. In another preferred embodiment a lockset handle lock is provided which includes a cylinder lock mounted in a lock housing and fitted with a pivoting clamp arm, one end of which clamp arm extends into the lock housing and engages a conventional cylinder bolt on the lock cylinder.

Abstract: A door lock set includes a housing set to be mounted on an outer side of a door, an outside rotary lock unit mounted on the housing set and provided with a rotatable deadbolt spindle, a deadbolt assembly having a deadbolt and a bolt driving mechanism operatively driven by the deadbolt spindle for extending the deadbolt outwardly to lock the door, an outside lever mechanism mounted on the housing set and provided with a rotatable latch spindle, a latch assembly having a latch and a latch driving mechanism operatively driven by the latch spindle for extending the latch outwardly to lock the door, and a link assembly. The link assembly includes a pull shaft connected operably to the outside lever mechanism so as to drive rotatably the latch spindle, a coupling shaft connected pivotally to the pull shaft and mounted pivotally to the housing set, and a driving cam connected operably to the outside rotary lock unit for co-rotation with the deadbolt spindle.

Abstract: A combination lock/deadbolt is connected to a push-to-open panic-bar device to operate in response to push-bar operation, thereby withdrawing both the push-bar latchbolt and the deadbolt permitting instantaneous and unrestricted egress from a secured area. To maintain the security of the area from unauthorized entry from outside the secured area, a connection between the push-to-open device and the combination lock/deadbolt assembly is implemented with a lost motion connection. The lost motion device, preferably is a flexible cable transmitting force only in tension, assures that any operation of the combination lock/deadbolt will not effect the security provided by the push-to-open device. Further, the push-to-open device may be provided both with a conventional key cylinder lock and a knob, ever, or thumb lever release on the door exterior.

Abstract: A testing apparatus which has a test chamber located within a chamber frame. The apparatus includes a computer controlled ergonomic system which can vary the temperature of the test chamber. Within the test chamber is an adjustable ceiling that can be moved to vary the volume of the chamber. Extending around the outer edge of the ceiling is an inflatable seal which seals the chamber when the ceiling is moved to a new position. The ceiling and walls have a plurality of adjustable vents that direct fluid flow into the chamber. The doors of the apparatus are each constructed from an inner wall that is coupled to an outer wall by a plurality of floating joints. The floating joints allow the inner wall to contract or expand relative to the outer wall without creating a corresponding stress on the outer wall or the joints.

Abstract: An exit bar has an elongated body for mounting on an exit door. The exit bar incorporates a pair of independent sensors. An infrared beam is generated along the front of the bar. An infrared detector produces a first signal when the beam is interrupted. The first signal results in release of a lock securing the door. If the beam is interrupted for longer than a pre-set time limit, a first alarm sounds. A capacitance sensor produces a second signal when the sensor detects changes of capacitance in the bar as a result of contact or near contact with foreign objects. The second signal also results in release of the lock securing the door. If the capacitance sensor detects a capacitance change for longer than a pre-set time limit, a second alarm sounds.

Abstract: The present invention is a device which installed in a vehicle that enables a vehicle trunk to be opened from the interior of the trunk and enables at least one of the tail lights to blink. The present invention can be retrofit to existing vehicles by connecting a prepared box and wiring harness to the vehicle power supply, trunk release solenoid, and taillights. The present invention has a ON/OFF switch which enables the circuit controlling the blinking of at least one tail light. A second switch activates the trunk release opening solenoid causing the trunk lock retract opening the trunk. The present invention is mounted in such a way as to be operable by an individual confined to the trunk and be concealed from the casual observer.