Horizontal lifeline energy absorber

Details Horizontal lifeline energy absorber Horizontal lifeline energy absorber

1994-10-21

1997-02-04

Chin-Shue, Alvin C.

Fire escape, ladder, or scaffold

Torso harness

182 18, A62B 3500

Patent

active

055989004

ABSTRACT:
An energy absorber for a horizontal lifeline protection system is provided. The energy absorber comprises a pair of independent shock absorbing units of similar construction. Each unit comprises a strip of woven webbing material and a strip of tear-ply webbing material. Each pair of corresponding ends of these strips are secured to each other and to a ring for securing to a portion of the horizontal lifeline fall protection system. The corresponding pairs of rings at each end are secured to each other. The woven webbing and tear-ply webbing of the units are folded and encased within a tearable envelope. The absorber is constructed so as to be secured to a horizontal lifeline within a fall protection system so that when a predetermined force is applied to the rings, the envelope tears and the tear-ply webbing separates, resulting in an overall elongation of the absorber. In the event the tear-ply webbing separates completely, the remaining force is applied to the woven webbing.

REFERENCES:
patent: 3937407 (1976-02-01), Matsuo
patent: 4100996 (1978-07-01), Sharp
patent: 4446944 (1984-05-01), Forrest
patent: 5174410 (1992-12-01), Casebolt
patent: 5287943 (1994-02-01), Bell

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