Safety latch

Details Safety latch Safety latch

1987-08-03

1989-06-27

Chin-Shue, Alvin C.

Closure fasteners

Bolts

Spring arm

248408, E50C 112

Patent

active

048423114

ABSTRACT:
A safety latch is disclosed which prevents the unintentional telescoping of supporting members of a fixture supporting tripod stand upon failure of its operating cable. The safety latch comprises a spring actuated pawl with an angled lower edge which permits extension of the tripod members while the pawl is engaged, but which prevents telescoping eelapse unless the pawl release is operated, withdrawing the key from supporting engagement between the members.

REFERENCES:
patent: 387345 (1988-08-01), Dickson
patent: 1009680 (1911-11-01), Mroczkowski
patent: 1320613 (1919-11-01), Gilcrease
patent: 2152895 (1939-04-01), Congtin
patent: 2222078 (1948-11-01), Kroeger et al.
patent: 2681244 (1954-06-01), Noecker
patent: 2932481 (1960-04-01), Breer et al.
patent: 4035096 (1977-07-01), Miller

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