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US 7,007,403 B1Granted
Shrouded floor drying fan
OwnerRoy Studebakerinventor
Life of this patent
Estimating the term…
Abstract
A method and apparatus for drying floors and carpets using a fan for generating a pressurized air stream within a vertical cylindrical shroud that is spaced two to five inches away from the floor on a set of legs such that an opening is formed between the shroud and the floor. The air stream is directed along the cylindrical shroud vertically toward the floor. At least a peripheral portion of the air stream is exhausted from the shroud in a substantially laminar flow at an angle that is inclined from the vertical and is exhausted radially into ambient air as a substantially laminar air stream.
Claims44
A fan, comprising:
- a shroud forming a confined space having an inlet orifice and an output orifice;
- a plurality of extensions arranged in distributed manner around the output orifice and extended in the range of two to five inches therefrom for substantially uniformly spacing the output orifice a distance of two to five inches from a substantially flat work surface that is external to the confined space and larger than the output orifice for forming a substantially circular opening between the confined space and the work surface adjacent to the output orifice;
- a fan impeller positioned within the confined space for generating pressurized air within the confined space and directing the pressurized air in an air stream through the output orifice;
- and
- a rotary power supply coupled for driving the fan impeller.
2 more elements
A fan, comprising:
- a shroud forming a confined space having a substantially cylindrical interior surface with an inlet orifice at a first end and an outlet orifice at a second end opposite the inlet orifice;
- a plurality of legs of two to five inches in length extending from the shroud adjacent to the outlet orifice for spacing the outlet orifice a substantially uniform distance in the range of two to five inches from a substantially flat work surface external to the shroud and larger than the outlet orifice;
- and
- a rotary motor-driven fan impeller within the shroud, the motor-driven fan impeller being structured for generating a pressurized air stream and directing the air stream outwardly through the outlet office.
1 more element
A fan, comprising:
- a shroud forming a confined space formed of a substantially cylindrical interior surface having a substantially round outlet orifice formed in one end thereof;
- a plurality of extensions arranged around the outlet orifice, each of the extensions having a component extending substantially perpendicular to the outlet orifice in the range of two to five inches;
- and
- a fan impeller positioned within the confined space and being driven by a rotary power supply for drawing air into the confined space, generating a pressurized air stream within the confined space, and forcing the pressurized air stream toward the outlet orifice.
1 more element
A fan, comprising:
- a shroud means for forming a confined space having an inlet orifice and an output orifice;
- a plurality of extensions arranged in distributed manner around the output orifice and extended in the range of two to five inches therefrom as a means for substantially uniformly spacing the output orifice a distance of two to five inches from a substantially flat work surface that is external to the confined space and larger than the output orifice for forming a substantially circular opening between the confined space and the work surface adjacent to the output orifice;
- a fan impeller positioned within the confined space as a means for generating pressurized air within the confined space and directing the pressurized air in an air stream through the output orifice;
- and
- a rotary power supply coupled to the fan impeller as a means for driving the fan impeller.
2 more elements
A fan, comprising:
- a shroud forming a confined space having a substantially cylindrical interior surface with an inlet orifice at a first end and an outlet orifice at a second end opposite the inlet orifice;
- a plurality of legs of two to five inches in length extending from the shroud adjacent to the outlet orifice, the plurality of legs comprising a means for spacing the outlet orifice a substantially uniform distance in the range of two to five inches from a substantially flat work surface external to the shroud and larger than the outlet orifice;
- and
- a rotary motor-driven fan impeller within the shroud, the motor-driven fan impeller being structured for generating a pressurized air stream and directing the air stream outwardly through the outlet orifice.
1 more element
Dependencies are inferred from the claim text.