Box fans

Details Box fans Box fans

1977-02-04

1978-10-17

Husar, C. J.

Pumps

Motor driven

Including means for facilitating assembly or disassembly of...

417423R, 417234, 415121G, 415DIG5, 220 69, 220306, 220324, F04B 3902

Patent

active

041206150

ABSTRACT:
A box fan comprising a box-like structure containing an electric motor and a fan blade assembly operable by the motor, which structure consists of a front section and a rear section forming a box having front and rear openings which are interconnected to form a duct through said box, the fan blade assembly being positioned for causing air flow through the duct when the motor is operating, wherein the two sections are held securely together by a locking means including external resiliently operable disguised clamps which are disposed transversely of the interface between said sections.

REFERENCES:
patent: 1637553 (1927-08-01), Coleman
patent: 2394319 (1946-02-01), McDonald
patent: 2950859 (1960-08-01), Kirk
patent: 2961152 (1960-11-01), Douglas et al.
patent: 3208620 (1965-09-01), Herdering
patent: 3348668 (1967-10-01), Amatsu et al.
patent: 3390806 (1968-07-01), Herbert

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