Security locking of rolling shutters

Details Security locking of rolling shutters Security locking of rolling shutters

1975-07-16

1976-07-20

Kannan, Philip C.

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Roll type

E06B 908

Patent

active

039701344

ABSTRACT:
A rolling shutter for building wall openings, has extra-long locking slats connecting the usual shutter slats to the slat storing roller. Lock slat guide blocks located adjacent the roller and outboard of the shutter slats cooperate with the lock slats when the shutter is closed to preclude disarrangement of the lock slats by a shutter opening force externally applied to the shutter slats, when the roller is locked.

REFERENCES:
patent: 2019084 (1935-10-01), Miller
patent: 3302692 (1967-02-01), Grau
patent: 3529650 (1970-09-01), Brancato

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