Locks for articulated rolling grilles

Details Locks for articulated rolling grilles Locks for articulated rolling grilles

1984-07-27

1986-03-04

Machado, Reinaldo P.

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Roll type

160 68, 292197, 292231, E05C 302, E06B 908

Patent

active

045735123

ABSTRACT:
An automatic lock for a rolling grille or the like is enclosed in guide means on each side of the opening to be closed and is actuated by an effort to open the grille by applying external forces opposite the direction of closure but released by lift tension.

REFERENCES:
patent: 1470250 (1923-10-01), Witten
patent: 1539072 (1925-05-01), Carbis
patent: 1792173 (1931-02-01), Langley
patent: 2747661 (1956-05-01), Lucas
patent: 3068937 (1962-12-01), Christensen
patent: 3850465 (1974-11-01), Hill et al.
patent: 3853166 (1974-12-01), Wrono
patent: 4365660 (1982-12-01), Henkenjohann
patent: 4493356 (1985-01-01), Hermann

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