Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with...
Patent
1984-11-16
1987-04-14
Garrett, Robert E.
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
415210, 415219R, 416247R, F04D 2952
Patent
active
046574832
ABSTRACT:
An extremely efficient, substantially noiseless portable fan suitable for household use is provided which produces a highly focused, homogeneous stream of substantially laminar flow air to achieve effective air movement and cooling throughout an entire room. The fan includes a torus-shaped shroud, the intake portion of which has aerodynamic configuration having a precisely engineered geometry to minimize turbulence and promote laminar flow. The shroud intake portion includes an exterior angled Venturi surface, which extends toward the shroud intake orifice, to intersect with a radiused edge which joins the Venturi surface with an interior aerodynamic surface. An impeller assembly including a central bullet-shaped nose cone and a plurality of aerodynamically-configured radial blades are mounted within the shroud to further minimize turbulence and promote smooth air flow. In addition, an array of radial vanes supported within the shroud further reduces turbulence and directs the air flow from the fan in a concentrated stream.
REFERENCES:
patent: D195287 (1963-05-01), Downing
patent: 1993158 (1935-03-01), Funk
patent: 2027745 (1936-01-01), Montgomery
patent: 2154313 (1939-04-01), McMahan
patent: 2536130 (1951-01-01), Herrman
patent: 2554602 (1951-05-01), Sutton
patent: 2628019 (1953-02-01), Koch
patent: 2640646 (1953-06-01), Jones
patent: 3146007 (1964-08-01), Boivie et al.
patent: 3169694 (1965-02-01), Borchers
patent: 3481534 (1969-12-01), Price
patent: 3519367 (1970-07-01), Lariviere
patent: 4123197 (1978-10-01), Keem et al.
patent: 4140433 (1979-02-01), Eckel
patent: 4189281 (1980-02-01), Katagiri et al.
patent: 4341151 (1982-07-01), Sakamoto
Garrett Robert E.
Pitko Joseph M.
LandOfFree
Shrouded household fan does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Shrouded household fan, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shrouded household fan will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1782337