Portable Devices for Mitigating Accumulation and Localized Settling of Airborne Particulates
First Claim
1. A device for mitigating accumulation and localized settling of airborne particulates, comprising:
- a housing having an upper portion and a lower portion;
the housing upper portion defining an air intake; and
the housing lower portion defining an air outlet and having an outer periphery defined by at least one sidewall;
a filter element removably attached to at least one of the housing upper and lower portions; and
a fan assembly mounted within the housing and defining an axis of rotation that is generally vertically oriented, wherein the fan axially draws a volume of air downwardly through the housing upper portion and discharges the volume of air into the housing lower portion, where it is emitted through substantially the entire periphery of the housing lower portion.
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Accused Products
Abstract
Portable devices for mitigating the accumulation and localized settling of airborne particulates are provided. The devices establish airflow patterns which push or carry various airborne particulates outwardly away therefrom, thereby establishing a localized zone having relatively fewer airborne particulates. Correspondingly, each the devices establishes a localized zone, defined circumferentially about the perimeter of the device, in which there is relatively less surface accumulation of particulates which were previously airborne and settled out. The devices establish such airflow patterns by proving a fan which draws a volume of air axially through a top portion of the device, then pushes the volume of air axially down through the device where it is radially emitted from the bottom portion of the device, defining a circumferentially expanding plane of airflow.
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Citations
20 Claims
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1. A device for mitigating accumulation and localized settling of airborne particulates, comprising:
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a housing having an upper portion and a lower portion;
the housing upper portion defining an air intake; and
the housing lower portion defining an air outlet and having an outer periphery defined by at least one sidewall;
a filter element removably attached to at least one of the housing upper and lower portions; and
a fan assembly mounted within the housing and defining an axis of rotation that is generally vertically oriented, wherein the fan axially draws a volume of air downwardly through the housing upper portion and discharges the volume of air into the housing lower portion, where it is emitted through substantially the entire periphery of the housing lower portion. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A device for mitigating accumulation and localized settling of airborne particulates, comprising:
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a housing having an upper portion and a lower portion;
the housing upper portion defining an air intake of the device;
the housing lower portion having at least one sidewall that defines a length dimension, the length dimension being generally vertically oriented, and a width dimension which varies along the length dimension of the housing lower portion sidewall;
a filter element removably communicating with the upper wall of the housing; and
a fan assembly which draws air into the device through the housing upper portion and pushes air out of the device through the housing lower portion. - View Dependent Claims (9, 10, 11, 12)
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13. A method of mitigating accumulation and localized settling of airborne particulates, the method comprising:
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A. providing a device with an upper portion, a lower portion, and a fan assembly which defines a generally vertical axis of rotation;
B. intaking a volume of air into the device by generally axially drawing the air through the upper portion; and
C. outputting the volume of air from the lower portion in a downwardly directed, circumferentially expanding spiral. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification