A - Human Necessities – 62 – B
Patent
A - Human Necessities
62
B
A62B 35/04 (2006.01)
Patent
CA 2133358
A shock absorber for fall protection systems is described. It is comprised of elongated first and second side-by-side inelastic elements having proximal and distal ends; means for attaching the distal end of said first inelastic element to the proximal end of said second inelastic element; a plurality of paired opposing first and second openings extending along the length of said first and second inelastic elements; and, a plurality of energy absorbing cables, extending, respectively, through said plurality of opposing pairs of openings, said energy absorbing cables having at each end thereof means to prevent withdrawal of said energy absorbing cables through the openings and said energy absorbing cables being of progressively longer lengths, whereby application of above normal shock loads on said shock absorber will cause the energy absorbing cables to break in sequence beginning with the shortest length shock absorbing cable.
Cette invention concerne un amortisseur de choc pour systèmes de protection contre les chutes. Il comprend un premier et un second éléments non élastiques juxtaposés ayant une extrémité distale et une extrémité proximale; un moyen d'attache de l'extrémité distale du premier élément non élastique à l'extrémité proximale du second élément non élastique; une série de premières et secondes ouvertures opposées le long desdits premier et second éléments non élastiques; et une série de câbles amortisseurs d'énergie qui passent respectivement dans lesdites séries de paires d'ouvertures opposées et qui ont, à chaque extrémité, un moyen qui les empêche de sortir desdites ouvertures, lesdits câbles étant de longueur progressivement plus grande de sorte que, à l'application de charges de choc dépassant la normale, les câbles se rompent en séquence en commençant par le câble le plus court.
Ellis J. Nigel
Sastry Ravi S.
Osler Hoskin & Harcourt Llp
Sellstrom Manufacturing Company
LandOfFree
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