Emergency elevator
AssigneeSociete Nationale Elf Aquitaine (Production)
InventorRaymond Bonafos
Life of this patent
Estimating the term…
Abstract
Apparatus for automatically escaping from a derrick comprises a chamber movable along a cable attached at one end to said derrick, and an automatically releasable system for holding the chamber at the derrick end of the cable, said system comprising a release pin connected to be actuated when a person jumps into the chamber. The chamber comprises a light metallic frame and a flexible pocket connected by a chain to said release pin.
Claims4
Apparatus for automatically escaping from a tall structure, said apparatus comprising a chamber formed by a light metal frame and a flame-resistant cloth pocket suspended from said frame, said chamber being mounted to travel on a cable attached at one end to said structure, and an automatically releasable latching system attached to said cloth pocket and adapted to connect said chamber to said structure when the chamber is empty but initiate the release and descent of the chamber upon the application of tension to said cloth when a person jumps into the chamber.
Dependencies are inferred from the claim text.