US 5,343,981 AGranted

Emergency cable descent system

OwnerCyril R. Schroemges, Gene F. Kull, Jr.inventors

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Abstract

An emergency cable descent system for lowering a person from a building in an emergency situation. The system includes a boom which may be pivoted outside a window of a building to support a cable away from an exterior of the building. The cable is contained upon a spool which rotates against a force of a friction brake to provide a constant rate of descent. The friction brake is actuated by a solenoid system to control the rate of descent according to the body weight of the person. Alternate embodiments of the present invention include both a mechanical siren for alerting other occupants of the building to a use of the system and a mechanical brake assembly which may be utilized to control the rate of descent in an absence of electrical power.

Claims5

Dependent claims

A new emergency cable descent system for lowering a person from a building having a window, said system comprising:

a cylindrical axle secured to said building;
a spool having an interior surface rotatably, concentrically positioned on said cylindrical axle;
a cable having a pair of ends and being partially wound upon said spool;
a boom pivotally mounted to said building proximate said window;
a pulley coupled to said boom, said cable passing over said pulley;
a harness coupled to one of said pair of ends of said cable;
and,
brake means coupled to said building for controlling a rotational speed of said spool with respect to said cylindrical axle, wherein said brake means comprises a solenoid in electrical communication with a power source and positioned within said cylindrical axle, and a brake pad coupled to said solenoid, with said cylindrical axle having an aperture formed therein, whereby said solenoid is operable to bias said brake pad through said aperture in said cylindrical axle and into engagement with said interior surface of said spool.

5 more elements

Dependencies are inferred from the claim text.