Multi-use personal ventilation/filtration system
AssigneePropulsive Wing LLC
InventorsJoseph Kummer, Jimmie B. Allred, III
Life of this patent
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Abstract
A ventilation device uses a cross-flow fan and one or more filters, where the filter preferably has a J-shape that at least partially surrounds the rotor of the cross-flow fan. In one embodiment, the filter includes a plurality of pleats, preferably along a bottom surface of the filter. The filters preferably remove particles, undesired gases, and micro-organisms. A filtration and ventilation system with at least one first ventilation device and at least one second ventilation device larger than the first ventilation device, as well as a method of filtering contaminants out of air using a personal ventilation device, are also disclosed.
Claims28
A ventilation device for filtering contaminants out of air, comprising:
- a) a cross-flow fan comprising a motor, a rotor having plurality of fan blades, and a cover surrounding the rotor and having an inlet and an outlet;
- and
- b) at least one curved air filter at least partially surrounding the rotor such that air that enters into the ventilation device passes through both the fan and the air filter before exiting the ventilation device;
- wherein at least a portion of the filter comprises a plurality of pleats to increase a surface area of the filter.
A filtration and ventilation system comprising:
- at least one first ventilation device and at least one second ventilation device for filtering contaminants out of air, wherein the first ventilation device and the second ventilation device each comprise:
- a) a cross-flow fan comprising a motor, a rotor having plurality of fan blades, and a cover surrounding the rotor and having an inlet and an outlet;
- and
- b) at least one air filter at least partially surrounding the rotor such that air that enters into the ventilation device passes through both the fan and the air filter before exiting the ventilation device;
- wherein the first ventilation device is a personal ventilation device that filters air from a thermal plume of the individual and the second ventilation device is substantially larger than the first ventilation device.
A method of filtering contaminants out of air using a personal ventilation device comprising at least one air filter, wherein the personal ventilation device is attached to an inanimate object, comprising the steps of:
- a) drawing air from a thermal plume of a user into the personal ventilation device;
- b) filtering the air using the air filter in the personal ventilation device;
- and
- c) blowing the filtered air back toward the user.
Dependencies are inferred from the claim text.