Power roof ventilator

Details Power roof ventilator Power roof ventilator

1986-12-16

1988-05-10

Schwartz, Larry I.

98 4206, 98 4211, F24F 702

Patent

active

047427655

ABSTRACT:
The invention relates to a motor-powered roof ventilator or extractor fan having its motor-impellor unit mounted within the housing for mounting on the roof or wall of a building. The centrifugal impellor draws in air through a base member adapted for attachment to the roof by way of an intermediate mount and expels it through oblique, diverging outlet ports away from the roof. The outlet ports are constituted by the ends of channel-like, mutually opposite side parts of the housing which are hinged to the base member and may be folded away from the rest of the housing to uncover the centrifugal impellor and the motor for inspection and servicing.

REFERENCES:
patent: 2551004 (1951-05-01), Johnson
patent: 2711682 (1955-06-01), Drechsel
patent: 3946648 (1976-03-01), Schneider
patent: 3960063 (1976-06-01), Siemes et al.

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