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US 6,293,751 B1Granted
Water/solids extracting blower
OwnerVirgil W. Stockstillinventor
Life of this patent
Estimating the term…
Abstract
An extracting blower that removes liquid and solid contaminants from supply air, and provides high velocity air for cooling equipment, personnel and/or structures. The blower uses air velocity and the centrifugal force of a rotating fan to separate the contaminants into a rear partitioned chamber of the fan housing and out a rear scavenging air exhaust, while blowing clean air out the main air blower.
Claims4
An extracting blower, comprising:
- a fan housing;
- said fan housing including a front wall, a rear wall and a side wall;
- a rotatable fan located within said fan housing;
- rotating means for rotating said fan;
- an air intake opening in said housing front wall;
- a partition provided in said fan housing intermediate said housing front wall and said housing rear wall;
- said partition partially defining a housing front chamber and a housing rear chamber;
- said partition including a partition opening;
- a clean air outlet provided in said housing front chamber;
- a contaminant exhaust outlet provided in said housing rear chamber;
- said fan including a back plate oriented within said housing rear chamber;
- a plurality of fan blades extending through said partition opening from said back plate toward said housing front wall;
- each of said plurality of fan blades extending partially within said housing front chamber and partially within said housing rear chamber;
- said back plate constituting a partial barrier between said housing front chamber and said housing rear chamber;
- said partition opening being generally circular and concentric with said rotatable fan;
- said fan blades extending radially outward from a fan axis of said fan,
- a fan blade rear section proximate said fan back plate;
- a fan blade front section distal said fan back plate;
- said fan blade rear section oriented within said housing rear chamber;
- said fan blade front section oriented within said housing front chamber;
- each of said plurality of fan blades having a fan blade outer edge;
- said fan blade outer edges defining a fan blade diameter;
- said fan blade diameter greater than said partition opening's diameter;
- said plurality of fan blades provided with a fan blade notch in each of said fan blade outer edges;
- said partition opening having a partition edge;
- said fan blade notches arranged in relation to said partition so that said partition edge extends within said fan blade notches;
- each of said fan blades having a leading surface, said leading surface being oriented in the direction of fan rotation;
- a wiper provided on each of said fan blades;
- each said wiper affixed to said leading surface of each of said fan blades;
- and
- said wiper being oriented on a bias to said fan blade leading surface such that said wiper does not interpose said fan blade notch and extends proximate said fan blade outer edge.
28 more elements
A method of extracting particles from dirty air, said method comprising:
- circulating said dirty air in a fan, said fan comprising a housing front chamber and a housing rear chamber, said front chamber and said rear chamber partially defined by a partition, said partition including a partition opening concentric with said fan, said fan comprising a plurality of fan blades oriented through said partition opening, said fan including a back plate, said back plate oriented in said housing rear chamber;
- said circulating step including intaking said dirty air, said dirty air comprising clean air and contaminants, through an air intake opening and into said fan housing by means of said fan rotation, said fan rotation inducing an air velocity through said air intake;
- separating said contaminants from said clean air;
- said separating step including striking said back plate with said contaminants by means of said induced air velocity;
- diverting said contaminants from said dirty air into said housing rear chamber by centrifugal migration of said contaminants along said back plate;
- exhausting said diverted contaminants out a rear chamber contaminant exhaust outlet;
- exhausting clean air out a front chamber clean air outlet;
- each of said fan blades having a leading surface, said leading surface being oriented in the direction of fan rotation;
- each of said plurality of fan blades having a fan blade outer edge;
- each of said plurality of fan blades provided with a fan blade notch in each of said fan blade outer edges;
- a wiper provided on each of said plurality of fan blades;
- each said wiper affixed to said leading surface of each of said plurality of fan blades;
- and
- said wiper being oriented on a bias to said fan blade leading surface such that said wiper does not interpose said fan blade notch and extends proximate said fan blade outer edge.
11 more elements
Dependencies are inferred from the claim text.