Compact descent controller

Details Compact descent controller Compact descent controller

2006-11-07

2006-11-07

Chin-Shue, Alvin (Department: 3634)

Fire escape, ladder, or scaffold

Single stile, strand or pole

Flexible

C182S005000

Reexamination Certificate

active

07131515

ABSTRACT:
A load lowering descent controller having a fixed cylindrical body or capstan about which a rope or cable is turned. The descent controller allows for lowering of the load at a controlled rate by adjusting the amount of friction between the controller and the rope or cable as a function of rope or cable turning and relative contact with rope or cable engagement surfaces in the controller.

REFERENCES:
patent: 3335469 (1967-08-01), Shand et al.
patent: 3949832 (1976-04-01), Hunter
patent: 4040627 (1977-08-01), Useldinger
patent: 4474262 (1984-10-01), Himmelrich
patent: 5131491 (1992-07-01), Varner et al.

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