Reliable Security Systems, Inc.

Other

Emanuel L Logan

J William Walsh

James W Walsh

A system for identifying emergency exits in a building includes a strobe light which is tethered at an elevated location with respect to the floor of the building. The strobe light is normally held at the elevated position by an electromagnet, which electromagnet is kept energized as long as a smoke detector connected thereto does not sense a dangerous level of smoke. As soon as the smoke detector detects smoke above a certain threshold level, the electromagnet is deenergized and the strobe light drops to a position suspended just above the floor. The strobe light includes its own battery source which is connected to the strobe light by a switch which closes when the strobe light is dropped. An electric motor is provided to rewind the tether when the smoke detector no longer indicates an emergency situation. By tethering the strobe light, the light can be dropped beneath the smoke level in the building, allowing people crawling along the floor to determine the location of emergency exits.

Emergency exit indicators

Opening of a door, such as an emergency exit door, is delayed by encumbering a security device, such as for example a latch bolt, with the task of throttling a hydraulic fluid through a circuit, which circuit includes a normally open valve held closed by a solenoid. When the solenoid is de-energized, the circuit is opened allowing the security device to move so that the door can be opened. The solenoid is controlled by an electrical timing circuit which delays de-energization of the solenoid. The timing circuit is started by a switch mounted to be operated by movement of the latch bolt. Preferably in a situation where there are a plurality of doors, doors proximate to one another are delayed by the same electronic timing circuit. In a preferred embodiment, the electronic timing circuit is set to de-energize the solenoid at a time subsequent to the delay resulting from throttling the fluid.

Emergency exit door latch with hydraulic and electronic delay

An emergency exit sign utilizes an EL lamp in combination with a pilot light which is connected to the EL lamp via a photoelectric link. The photoelectric link monitors the brightness of the EL lamp and keeps the pilot light on so long as the EL lamp is lit. The pilot light is necessary because the illumination provided by the EL lamp may be less than the illumination of background brightness making it difficult to tell by looking at the EL lamp whether or not the EL lamp is energized. Since the pilot light provides a 'point' of illumination, it is easy to see when it is on so that one can tell whether or not the sign is lighted by simply looking at the pilot light. In order to see the exit sign even if power to the EL lamp is interrupted and the room is dark, a translucent sheet of phosphorescent material is placed over the EL lamp to transmit light from the EL lamp while at the same time storing energy so as to 'glow in the dark' should the EL lamp be extinguished. In order to increase utilization of this exit sign, structure is provided for easily retrofitting the sign to existing emergency exit housings. The structure includes spring-closed, U-shaped clips which are frictionally attached to the housing and which each have an exposable adhesive surface against which the exit sign is pressed for permanently installing the sign on the housing. In addition, an adapter is provided which allows the exit sign to be readily plugged into the existing lightbulb socket prior to adhering the exit sign to the housing.

Emergency exit sign utilizing an electro-luminescent (EL) lamp and a

In order to secure an emergency exit door against unauthorized opening from the inside, a retrofit delay mechanism is attached to the door frame. The delay mechanism includes a retractable bolt which projects behind a strike mounted on the door. A piston is attached to the bolt and a hydraulic circuit is connected to the piston. The hydraulic circuit includes a throttle and a normally open valve. The normally open valve is held closed by a solenoid. Upon attempting to open the door, fluid in the hydraulic circuit is throttled slowing down retraction of the bolt and delaying opening of the door. The solenoid which releases the normally open valve is connected to a timing circuit which de-energizes the solenoid after a predetermined time interval thus providing a redundant delay arrangement. Smoke detectors, fire pull-boxes and a remote reset switch are also connected to the solenoid via a dropout relay. Upon the occurrence of an emergency situation, the dropout relay de-energizes the solenoid allowing fluid to flow freely in the hydraulic circuit so that the door opens immediately. The retrofit delay mechanism operates in conjunction with existing panic hardware.

Apparatus for delaying opening of doors

Timing apparatus for delaying opening of doors

An emergency exit door latch includes a pivoted bolt which pivots into registration with a keeper and is urged in the projected position by a spring biased plunger. The spring biased plunger is retained within a hydraulic cylinder. Hydraulic lines connect the portion of the hydraulic cylinder in front of the plunger to the portion behind the plunger through a throttling means. Upon pressing against the door, the swinging bolt urges the plunger rearwardly so as to force fluid in the rear portion of the hydraulic cylinder through the line and the throttling means to the front portion of the hydraulic cylinder thereby allowing the bolt to slowly retract as the fluid is throttled. Preferably, a push bar is provided having a detent means thereon which locks the bolt in its projected position. Upon pressing the push bar, the bolt is released so that it can be slowly retracted as pressure is placed on the door. Preferably, there is an emergency release system which allows rapid transfer of fluid from the rear of the piston to the front of the piston upon the occurrence of an emergency condition such as tripping of a fire alarm or smoke alarm. This emergency system allows the hydraulic fluid to bypass the throttling device which generally retards retraction of the bolt. An alarm system is connected to the latch and sounds whenever the latch is operated so as to alert personnel within the building that someone is trying to open the emergency door without authorization.

Point-of-egress control device for securing exit doors safely

Opening of a door, such as an emergency exit door, is delayed by a door check, the operation of which has been reversed to delay opening of the door instead of delaying closing of the door. The delay is accomplished by a circuit which includes a normally open valve held closed by a solenoid. When the solenoid is de-energized, the circuit is opened allowing the reversed door check to operate so that the door can be opened. The solenoid is controlled by an electrical timing circuit which is started by a switch connected to a door operator such as a push bar.

An emergency release for key operated deadlocks includes a ram rod for forcing a deadbolt out of a keeper so as to allow a deadlocked door to open under emergency conditions. The release further includes a yieldable element disposed between the key operator for the deadbolt, which yieldable element deforms as the deadbolt is forced back by the ram. An alarm is activated upon operation of the emergency release to discourage intruders from trying to open the door with the emergency release. Preferably, the rod is advanced by a rack-and-pinion arrangement which is operated by a wire coiled around a spool.

Emergency release for deadlocks

Attachment of an address and bar-code label to a form is encouraged by defining a label placement area on the form, which area is dark in color to discourage writing in the area. The area also includes words such as 'PLACE LABEL HERE' in a light color to instruct the person filling out the form to place the label in the area. Preferably, the remaining portion of the form is filled with writing to discourage the person filling out the form from putting an address or the label in an area other than the area designed as the label placement area. Moreover, an envelope with a transparent window corresponding in location to the placement of the label on the form may be provided with the form and label.

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Arlington, VA, United States of America

Emanuel L Logan