Patent ID: 8490750

Claim:
A lifeline system, comprising: a lifeline; and a hub around which the lifeline is coiled, the hub being deformable to absorb energy at a determined level of force exerted thereon by the lifeline so that a peak fall arrest force in a drop test of the lifeline system with a 220 pound mass attached to the lifeline over a distance of up to 6.56 feet is not more than 1900 pounds, wherein the hub comprises a peripheral member about which the lifeline is coiled and at least one annular connecting member extending between the peripheral member and a generally central portion of the hub, at least a portion of the peripheral member and the connecting member being deformable to absorb energy in response to force exerted thereon by the lifeline, the connecting member extending axially along the hub a distance less than an axial length of the hub, wherein the annular connecting member is a disc.