Tri-pod portable fan

Details Tri-pod portable fan Tri-pod portable fan

1993-10-26

1995-02-21

Kwon, John T.

Fluid reaction surfaces (i.e., impellers)

Protective screen or guard

Water or marine propellers

416246, F04D 2970

Patent

active

053910567

ABSTRACT:
An air blower including a rear housing defining a plurality of air inlet openings, a front housing having an annular peripheral portion secured to the rear housing, a central support portion within the peripheral portion, a grillwork portion extending between the peripheral portion and the support portion, and a fan assembly secured to the central portion and projecting toward the rear housing. The grillwork portion includes a plurality of vanes each of which is arcuately curved in shape and each of which is connected between the central support portion and the annular peripheral portion independently of the other.

REFERENCES:
patent: 2281769 (1942-05-01), Hochriem
patent: 2476692 (1949-07-01), Bernstein
patent: 2544281 (1951-03-01), Seil
patent: 2600325 (1952-06-01), Reisch
patent: 2857095 (1958-10-01), Suarez et al.
patent: 3927853 (1975-12-01), Guth
patent: 4925137 (1990-05-01), Hastings
patent: 4927324 (1990-05-01), Coup et al.
patent: 5131810 (1992-07-01), Wang

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