Portable slow descender

Details Portable slow descender Portable slow descender

1990-12-18

1991-12-31

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Torso harness

Attached to strand wound on reel, and means for retarding...

182235, 182239, A62B 108, A62B 110, F16D 5900

Patent

active

050763954

ABSTRACT:
A portable slow-descending device is provided in which a lifeline in the form of a tape is selectively dispensed from a reel around which the lifeline is wound. A planetary gear mechanism and a centrifugal brake mechanism are housed within a cylinder portion of the reel and a manual control member may be provided in connection therewith for locking the centrifugal brake mechanism during descent of the device. All operable elements of the device are within reach of and descend with a victim so that the victim may personally ensure his safe, controlled descent. The lifeline is preferably formed of aramid fibers which may be formed into a tape of at least 100 m in length and is resistant to elemental fatigue. Heat transfer from the centrifugal brake to the gear mechanism may be reduced by projecting the centrifugal brake from one side of the device and appearance thereof may be streamlined by encapsulating the device within a unitary housing.

REFERENCES:
patent: 286306 (1883-10-01), Johnson
patent: 1037333 (1912-09-01), Scheuer
patent: 1435366 (1922-11-01), Bassett
patent: 1782951 (1930-11-01), Abbott
patent: 2479459 (1949-08-01), Bassett
patent: 2729425 (1956-01-01), Gschwind
patent: 3150744 (1964-09-01), Fertier
patent: 4457400 (1984-07-01), Donaldson
patent: 4986390 (1991-01-01), Kikuchi

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