Multiple stage personal fall arrest energy absorber

Details Multiple stage personal fall arrest energy absorber Multiple stage personal fall arrest energy absorber

2008-07-01

2008-07-01

Chin-Shue, Alvin C. (Department: 3634)

Fire escape, ladder, or scaffold

Torso harness

Window washer type

C182S003000, C182S005000, C280S805000

Reexamination Certificate

active

07392881

ABSTRACT:
The use of a fall arrest lanyard that provides fall arrest forces at least two primary levels is disclosed. One example provides a lanyard with a pair of shock absorbers of different capacities in series. Other examples use a single shock absorber that provides at least two distinct levels of arrest force. Varying the strength of the attachment area that is to be separated to provide the arrest force and by varying the amount of area being separated at one time varies the levels of arrest force.

REFERENCES:
patent: 3444957 (1969-05-01), Ervin, Jr.
patent: 4618026 (1986-10-01), Olson
patent: 5529343 (1996-06-01), Klink
patent: 5658012 (1997-08-01), Villarreal et al.

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