Patent ID: 9669319
Date: 2017-06-06
CPC Classifications: A63G,B61B,B61H,F16D

Claim:
1. An apparatus comprising: a cable having a central axis defining a longitudinal direction and extending therealong between first and second ends and central to a diameter of the cable; the cable, being held in suspension as a clear span extending unsupported between the first end and the second end, the second end being lower than the first end; a trolley, comprising at least one wheel rollable along the cable; an attenuator comprising springs arranged along the cable in a first set; and a latch block comprising a latch shaped to capture the trolley upon arrival thereof proximate the latch block and restrain movement of the trolley away from the attenuator; and a recoil tether connected to the latch block to capture a second set of the springs to restrain travel of the latch block and trolley in recoil resulting from a compression among the first set of the springs.