Shutter and a slat for the same

Details Shutter and a slat for the same Shutter and a slat for the same

1990-10-05

1992-03-17

Johnson, Blair M.

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Roll type

160236, 160201, 49171, 454174, 454212, 454250, E06B 908

Patent

active

050959654

ABSTRACT:
The present invention relates to a shutter which is capable of ventilating air in a building. There is provided a slat, which has a through-hole covered with a net, in the upper section of the shutter; there is provided a slat, which is capable of adjusting the amount of ventilating air, in the lower section of the shutter. With this combination, fresh air is able to enter the building from the lower slat and air inside is able to flow out from the upper slat when the lower slat makes possible to ventilate.

REFERENCES:
patent: 1592667 (1926-07-01), Lewis
patent: 1876750 (1932-09-01), Reed
patent: 1929219 (1933-10-01), Sevison
patent: 2208039 (1940-07-01), Mills
patent: 2390116 (1945-12-01), Michelman
patent: 2621726 (1952-12-01), Greegor
patent: 2624263 (1953-01-01), Klein
patent: 4770087 (1988-09-01), Danley et al.

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