Safety grab protection device

Details Safety grab protection device Safety grab protection device

1988-03-01

1989-11-21

Butler, Douglas C.

Brakes

Strand

24134P, 182 5, B65H 5916

Patent

active

048816221

ABSTRACT:
A safety grab protection device that both operates bi-directionally for connecting a safety belt lanyard to a vertical safety rope and has contoured cam surfaces that engage the safety rope in such a way that the shape of the braking surfaces engage the rope without damaging it.

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patent: 4140207 (1979-02-01), Sharp et al.
patent: 4144620 (1979-03-01), Schaeffer
patent: 4253218 (1981-03-01), Gibbs
patent: 4278042 (1981-07-01), Lindquist
patent: 4560029 (1985-12-01), Dalmaso
patent: 4580658 (1986-04-01), Brda

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