Title:
Twin window fan
United States Patent 2805820
Inventors:
Evarts, Ralph E.
Publication Date:
09/10/1957
Export Citation:
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Assignee:
O A SUTTON CORP INC
Primary Class:
417/238
Other Classes:
211/1.3, 248/223.41, 403/62, 417/234, 417/338, 417/360, 454/200, D23/371
International Classes:
F04D29/64; F04D29/60
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US Patent References:
2650535Ventilating and air circulating device
2644390Reversible-flow window fan
2620127Air translating apparatus
2554602Cowl for fans
2554601Mounting means for guard grilles of fans or similar appliances
2554600Mounting yoke for fans or similar appliances
2553172Window ventilating device
2133985Flexible current connection for oscillating fans