Fluid reaction surfaces (i.e. – impellers) – Ambulant – body supported or with carrying handle
Patent
1995-01-23
1996-04-02
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
Ambulant, body supported or with carrying handle
416246, 417234, 169 52, 169 91, 2481885, F04D 2964
Patent
active
055035264
ABSTRACT:
A portable, positive pressure fan for fire fighting provides a three-leg frame with a platform supporting the fan and its driving engine. The platform carries two forward, laterally spaced collars and one rearward collar to adjustably receive the three legs for support spacedly above a supporting surface. The legs are adjustably positionable in the collars to allow vertical adjustment to regulate fan height and angulation relative to a supporting surface, have an arcuate configuration and are somewhat resilient to absorb and damp operative forces, and the leg array alleviates or negates walking of the structure on a supporting surface caused by vibrations resulting from operational forces. The fan has a blade with diametrically opposed lobes of the aircraft propeller type to create a narrow cone of pressurized air and preserve as great a volume and velocity of such air as possible at ordinary operating distances.
REFERENCES:
patent: 1972654 (1934-09-01), Heath
patent: 2215035 (1940-09-01), Gundelfinger
patent: 2884075 (1959-04-01), Poon
patent: 2891624 (1957-06-01), McBride
patent: 3004612 (1961-10-01), Kofahl
patent: 3685300 (1972-08-01), Mott et al.
patent: 4402487 (1983-09-01), Donnelly
patent: 4886233 (1989-12-01), Bateman et al.
patent: 4906164 (1990-03-01), Jackman et al.
patent: 4976319 (1990-12-01), Eberhardt et al.
patent: 5012214 (1991-05-01), Kapich
patent: 5062487 (1991-11-01), Siria et al.
patent: 5152578 (1992-10-01), Kiguchi
patent: 5205711 (1993-04-01), Raczykowski
patent: 5395087 (1995-03-01), VanBasten
Neils James L.
Neils John J.
Bergman Keith S.
Larson James A.
Look Edward K.
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