Air directing device
United States Patent 3371855
US Patent References:
/0461051.html
- - 0461051

/0984549.html
- - 0984549

Propeller blower
- - 1427859

Suspension arrangement for screw fan rotors
- - 2100946

Axial flow fan regulator
- - 2653754


Inventors:
Bruns, Herbert F.
Publication Date:
03/05/1968
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Primary Class:
415/118
Other Classes:
415/126, 415/119, 415/148
International Classes:
F04D29/52; F04D29/40
US Patent References:
2814433Propeller fan nozzle
Foreign References:
DE884850C
GB429958A
GB429959A