Adjustable blade fan
United States Patent 2664961

Inventors:
Goede, Charles F.
Publication Date:
01/05/1954
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Assignee:
JOY MFG CO
Primary Class:
416/207
Other Classes:
416/220A, 415/129, 415/208.200, 416/220R
International Classes:
F04D29/36; F04D29/32
US Patent References:
1878816Impeller
2100481Fan
2101535Reversible propeller
2246539Variable pitch propeller
2276347Hub construction for hydraulic operated variable pitch propellers
2307490Ventilator
2382535Axial flow fan
2495433Pitch adjusting mechanism
Foreign References:
GB190497A
DE339723C
GB367265A