Roof fan

Details Roof fan Roof fan

1974-07-18

1976-06-01

Wayner, William E.

Acoustics

Anatomic or prosthetic relation

Ear and mouth

181 36R, 417360, F24F 702

Patent

active

039600637

ABSTRACT:
A roof fan having an air-quieting casing or sound reducing device on the suction side. A blower is mounted inside a housing and the impeller shaft extends vertically. The blower and the surrounding housing are pivotally arranged on the casing so that not only the blower is rendered accessible but also the sound reducing devices and the suction channel.

REFERENCES:
patent: 2458045 (1949-01-01), Angus
patent: 2562600 (1951-07-01), Cadwell et al.
patent: 2875678 (1959-03-01), Shepherd
patent: 3078781 (1963-02-01), Jentoft
patent: 3433145 (1969-03-01), Daly et al.
patent: 3435911 (1969-04-01), Greenheck
patent: 3482767 (1969-12-01), Reinkoester, Jr.
patent: 3722396 (1973-03-01), Peill et al.

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