Air quality enhancing ceiling paddle fan
First Claim
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7. An in-room air sterilizer adapted for connection to a source of electrical energy, said air sterilizer comprising:
- an electric motor driven paddle ceiling fan; and
a source of UV-C radiation carried by said ceiling fan for establishing a radiation field within the room air proximate to said fan that does not exceed a predetermined radiation intensity threshold at a predetermined height above the floor.
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Abstract
A ceiling paddle fan fixture for improving the quality of the air in the room and various methods of enhancing room air quality, with particular application in public spaces such as hospitals, health care institutions, dormitories, schools and offices. A UV-C source and an air mover are combined in a single fixture which uses a low intensity UV-C source and a paddle ceiling fan to significantly increase the mixing of the treated with the untreated room air. Sterilization of room air is achieved by the passage of a high volume of air at a relatively slow speed through a relatively low intensity UV-C field.
92 Citations
41 Claims
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7. An in-room air sterilizer adapted for connection to a source of electrical energy, said air sterilizer comprising:
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an electric motor driven paddle ceiling fan; and a source of UV-C radiation carried by said ceiling fan for establishing a radiation field within the room air proximate to said fan that does not exceed a predetermined radiation intensity threshold at a predetermined height above the floor. - View Dependent Claims (8, 9, 10, 11, 12)
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- 13. A ceiling paddle fan including a stationary source of visible light and a movable source of invisible radiation
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14-1. The fan of claim 13 wherein said invisible radiation is UV-C.
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16. A method of sterilizing room air comprising the steps of:
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(a) providing a ceiling mounted paddle fan with a source of UV-V radiation; (b) using the UV-C source to creating an UV-C radiation field above and circumferentially around the fan; (c) using the paddle fan to move air through the radiation field.
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17. In room with infected persons and uninfected persons not in immediate proximity to the infected persons, a method of reducing the risk of infecting the uninfected persons from germs introduced into the air by the infected persons by moving the air immediately proximate to the infected persons upwardly into a UV-C radiation field in the upper part of the room for subsequent mixing with room air prior to circulation to the immediate proximity to the uninfected persons.
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18. A method of improving air quality by using a paddle fan to circulate air through a circular field of UV-C radiation.
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19. A canopy for a ceiling paddle fan comprising:
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a housing adapted for mounting to a ceiling around the rod by which a paddle fan is suspended; and a source of UV-C radiation carried within said housing for providing a circumferential UV-C radiation field around said canopy, said housing being sufficiently opaque to UV-C radiation so that the radiation does not exceed a predetermined radiation intensity threshold at a predetermined height above the floor of the room.
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20. A paddle blade for a ceiling mounted fan comprising:
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an elongated generally flat blade member suitable for moving air when rotated in a generally horizontal plane by a ceiling fan; and a source of UV-C radiation carried by said member in position to establish a radiation field above said member as said member is rotated in a generally horizontal plane.
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21. An in-room air sterilizer comprising:
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an electric motor driven paddle ceiling fan; a source of UV-C radiation carried by said ceiling fan for establishing a radiation field within the room air proximate to said fan; a parameter detector; and electronic controls that automatically modify the intensity of the UV-C radiation in response to the parameter detected. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. An in-room air sterilizer comprising:
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an electric motor driven ceiling paddle fan; a source of UV-C radiation carried by said paddle fan for establishing a radiation field within the room air proximate to said fan; and electronic controls for modifying UV-C radiation intensity independently of volume of air moved. - View Dependent Claims (29)
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30. An in-room air sterilizer adapted for connection to a source of electrical energy, said air sterilizer comprising:
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an electric motor driven impeller for moving room air vertically within the room; and a source of UV-C radiation carried by said impeller for radiating the room air in proximity to said impeller as it rotates. - View Dependent Claims (31)
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32. A method of sterilizing room air comprising the step of passing an air moving surface through the room air while emitting UV-C radiation from the passed surface.
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33. An in-room air sterilizer for a room having a ceiling sufficiently high to safely suspend a paddle ceiling fan therefrom, said sterilizer being adapted for connection through the ceiling to a source of electrical energy, said air sterilizer comprising:
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a fan housing; a hollow rod connected to said fan housing for suspending said fan housing from the ceiling and for providing power to said fan housing; said fan housing including; a rotor assembly with plural laterally extending fan blades, a motor for driving said rotor assembly, and a source of UV-C radiation carried by at least one of said blades for irradiating room air proximate thereto that does not exceed a predetermined radiation intensity threshold at a predetermined height above the floor.
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34. A method of sterilizing the air in a room by:
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(a) providing a plurality of room air engaging surfaces at least one of which includes a source of UV-C radiation; and (b) rotating the surfaces in a generally horizontal plane to thereby simultaneously move air and create a rotating field of UV-C radiation.
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- 35. A method of improving room air quality comprising the step of moving a source of UV-C radiation through the air in the room.
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38. A method of improving room air quality comprising the step of circulating air by a fan blade carrying an UV-C source.
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39. A ceiling fixture with a paddle fan, a stationary source of visible magnetic radiation, and a movable source of invisible magnetic radiation.
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40. A method of creating a radiation field for air sterilization comprising the steps of:
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(a) creating a radiation field extending laterally from a central source; and (b) moving a reflecting surface through the field in a generally horizontal plane to reflect some of the energy upwardly.
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41. An room air sterilizer comprising:
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a ceiling paddle fan; a source of UV-C radiation carried by said fan in position to radiate the supper surface of the paddles, the paddles of said fan having a UV-C reflective upper surface to reflect UV-C radiation upwardly toward the ceiling.
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Specification