Slot ventilator

Details Slot ventilator Slot ventilator

1996-03-08

1998-06-23

Joyce, Harold

Ventilation

Means combined with door

454211, 454213, F24F 700

Patent

active

057697060

ABSTRACT:
A slot ventilator 14 is located adjacent (entrance apertures 30, 38 of a window frame 10 and sash spar 12. The entrance apertures lead in substantially perpendicular directions into ventilation slots 22, 32 through the frame spar and sash spar. An abutment 56 is provided for location between the two spars. A spacer 50 and gasket 54 are located adjacent the entrance to the sash spar, and a rotatable closure member 62 controls the effective outlet area of the ventilator.

REFERENCES:
patent: 287791 (1883-11-01), Badger
patent: 864792 (1907-09-01), Meek
patent: 1119288 (1914-12-01), Kurz
patent: 2182576 (1939-12-01), Bancroft
patent: 2221497 (1940-11-01), Thomas
patent: 3908528 (1975-09-01), Bertin et al.
patent: 4592271 (1986-06-01), Young
patent: 4677904 (1987-07-01), Natsumeda et al.

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