Air control device
First Claim
1. An air control device for use in conjunction with the air passageway of an air flow duct to control the flow of air therethrough, said air control device comprising:
- (a) a stationary plate means for being attached to said air flow duct transverse of said air passageway, said stationary plate means having a substantially flat face and a plurality of circular apertures therethrough, the longitudinal axes of said apertures being at an oblique angle with respect to said face; and
(b) a movable plate means for covering said plurality of apertures of said stationary plate means, said movable plate means having a substantially flat face and a plurality of circular apertures therethrough and being movable between a first position in which said plurality of apertures through said movable plate means are fully out-of-alignment with said plurality of apertures through said stationary plate means and a second position in which said plurality of apertures through said movable plate means are fully aligned with said plurality of apertures through said stationary plate means, the longitudinal axes of said apertures being at a right angle with respect to said face.
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Abstract
A device for use in conjunction with an air flow duct to control the flow of air through the duct. The device includes a body for being secured with respect to the duct and having a central aperture therethrough for allowing substantially unhampered flow of air from the duct therethrough, a stationary plate for covering the central aperture of the body and having a plurality of apertures therethrough for allowing substantially unhampered flow of air therethrough, and a movable plate for covering the stationary plate and having a plurality of apertures therethrough for selective alignment with the apertures through the stationary plate to allow metering of the flow of air therethrough.
63 Citations
4 Claims
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1. An air control device for use in conjunction with the air passageway of an air flow duct to control the flow of air therethrough, said air control device comprising:
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(a) a stationary plate means for being attached to said air flow duct transverse of said air passageway, said stationary plate means having a substantially flat face and a plurality of circular apertures therethrough, the longitudinal axes of said apertures being at an oblique angle with respect to said face; and (b) a movable plate means for covering said plurality of apertures of said stationary plate means, said movable plate means having a substantially flat face and a plurality of circular apertures therethrough and being movable between a first position in which said plurality of apertures through said movable plate means are fully out-of-alignment with said plurality of apertures through said stationary plate means and a second position in which said plurality of apertures through said movable plate means are fully aligned with said plurality of apertures through said stationary plate means, the longitudinal axes of said apertures being at a right angle with respect to said face.
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2. An air control device for placement over the outlet end of an air flow duct in a forced air system to control the flow of air from said air flow duct into a room, said air flow duct having an inner wall for defining an air passageway;
- said air control device comprising;
(a) body means for being attached to said outlet end of said air flow duct, said body means including a neck member for being positioned within said air passageway, said neck member having an outer wall, said neck member having an aperture therethrough for allowing substantialy unhampered flow of air from said air flow duct; (b) face plate means for being removably attached to said body means and for covering said air passageway through said body means, said face plate means having a substantially flat face and a plurality of circular orifices therethrough for allowing substantially unrestricted flow of air from said air flow duct into said room, the longitudinal axes of said orifices through said face plate means being at an oblique angle with respect to said face so as to provide an optimum direction of flow of air from said air flow duct into said room; (c) meter plate means for being movably secured with respect to said face plate means and for metering the flow of air through said face plate means, said meter plate means having a substantially flat face and a plurality of circular orifices therethrough, said meter plate means being movable between a fully opened position in which said orifices through said meter plate means are fully aligned with said orifices through said face plate means to allow substantially unrestricted flow of air from said air flow duct into said foom and a fully closed position in which said orifices through sand meter plate means are fully out of align with said orifices through said plate means to prevent any flow of air from said air flow duct into said room and a plurality of intermediate positions in which said orifices through said meter plate means are partially aligned with said orifices through said face plate means to allow varying amount of air flow from said air flow duct into said room, the longitudinal axes of said orifices being at a right angle with respect to said face; and (d) filter means attached to said meter plate means for filtering the air passing from said air flow duct into said room. - View Dependent Claims (3, 4)
- said air control device comprising;
Specification