Triladder

Details Triladder Triladder

1996-05-30

1997-11-11

Chin-Shue, Alvin C.

Fire escape, ladder, or scaffold

Pivotally connected ladders, mutually sustaining

182119, E06C 700

Patent

active

056853912

ABSTRACT:
A connecting device (10) is adaptable to assemble one, two or three ladders (72, 74, 76) into a tripod structure. A body (12) of the connecting device has six rung receivers (28) affixed thereto and outwardly projecting therefrom in pairs, with each pair of receivers projecting at an angle to the other pairs and at an angle to the vertical. Where three ladders are not available, support members (140, 160) may be employed to form one or two of the tripod legs.

REFERENCES:
patent: 160081 (1875-02-01), Carnes
patent: 355574 (1887-01-01), Tilley
patent: 461366 (1891-10-01), ODom
patent: 1258048 (1978-03-01), Ryder
patent: 1529898 (1925-03-01), Lucke
patent: 1548410 (1925-08-01), Derbyshire
patent: 1718885 (1929-06-01), William
patent: 2661082 (1953-04-01), Ziegle
patent: 4796843 (1989-01-01), O'Connor

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