Ventilation grille structure

Details Ventilation grille structure Ventilation grille structure

1980-09-26

1983-03-22

Makay, Albert J.

98 2, 98114, F24F 1314

Patent

active

043771076

ABSTRACT:
A ventilation grille structure comprises an air duct for directing an air flow therethrough, a louver assembly rotatably arranged at the air outlet end of the air duct for forcing the air flow to change its direction while the air flow is passing therethrough. Air guide means is provided in the air duct so as to direct the air flow to the louver assembly without causing turbulences around the air outlet end of the air duct.

REFERENCES:
patent: 2317798 (1943-04-01), Otto
patent: 2395319 (1946-02-01), Davies
patent: 3636854 (1972-01-01), Cary
patent: 3662668 (1972-05-01), Johnson
patent: 3952639 (1976-04-01), Nobata

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