Trash chute locking system

Details Trash chute locking system Trash chute locking system

1975-05-19

1977-01-11

Bell, Jr., Houston S.

Conveyors, chutes, skids, guides, and ways

Chutes

Wall

141 98, 169 61, 250574, E04F 1710

Patent

active

040022293

ABSTRACT:
A system for locking the doors of a trash chute located within a multi-story structure. A beam of radiant energy extends the length of the chute to a receiver, and upon interruption of the beam by blockage of the chute, the receiver transmits a signal to a detector which in turn energizes locking means to lock all entries to the trash chute until the blockage has been removed. Fire-sensing means and a source of water to flood the chute are also utilized should the blockage catch fire before being removed.

REFERENCES:
patent: 3171447 (1965-03-01), Fowler et al.
patent: 3524707 (1970-08-01), Hansen et al.
patent: 3690560 (1972-09-01), Boyd
patent: 3695172 (1972-10-01), Cleary et al.

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