Device for automatically closing windows

Details Device for automatically closing windows Device for automatically closing windows

1987-12-28

1989-06-06

Brittain, James R.

Movable or removable closures

Thermal releaser or actuator

Fusible closure latch or retainer

49 1, E05F 1520

Patent

active

048359041

ABSTRACT:
A device for automatically closing windows with vertically sliding sashes in the case of fire comprises

REFERENCES:
patent: 1249013 (1917-12-01), Boyd
patent: 2878906 (1959-03-01), Knebel
patent: 3189142 (1965-06-01), Carlson

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