Fluid flow control damper assembly and method
First Claim
1. A damper assembly for controlling the flow of fluid through a duct, comprisinga support base for external mounting to a side of a duct, said support base having inner and outer sides,a damper vane mount fixed with respect to said support base and extending inwardly from said support base said damper vane mount having an inner end for positioning within said duct,a damper vane mounted to said inner end of said damper vane mount for movement between open and closed positions, said damper vane being located inwardly of said inner side of said support base for positioning interiorly of the duct when said support base is mounted to the duct,an actuator mounted to said support base, including an actuator member having a longitudinal axis extending generally parallel to said damper vane mount and operatively connected to said damper vane and longitudinally movable for moving said damper vane between said open and closed positions, andwherein said support base includes a closure for closing an access opening in a side wall of the duct of sufficient size to permit insertion of said damper vane therethrough.
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Abstract
A fluid flow control damper assembly and associated method are characterized by a self-contained unit comprising a support base for external mounting to a side of a duct, a damper vane mounted to the support base for movement between open and closed positions, the damper vane being located inwardly of the inner side of the support base for positioning interiorly of the duct when the support base is mounted to the duct, and an actuator mounted to the support base and operatively connected to the damper vane for moving the damper between the open and closed positions, and wherein the support base functions to close an access opening in a side wall of the duct of sufficient size to permit insertion of the damper vane therethrough.
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Citations
21 Claims
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1. A damper assembly for controlling the flow of fluid through a duct, comprising
a support base for external mounting to a side of a duct, said support base having inner and outer sides, a damper vane mount fixed with respect to said support base and extending inwardly from said support base said damper vane mount having an inner end for positioning within said duct, a damper vane mounted to said inner end of said damper vane mount for movement between open and closed positions, said damper vane being located inwardly of said inner side of said support base for positioning interiorly of the duct when said support base is mounted to the duct, an actuator mounted to said support base, including an actuator member having a longitudinal axis extending generally parallel to said damper vane mount and operatively connected to said damper vane and longitudinally movable for moving said damper vane between said open and closed positions, and wherein said support base includes a closure for closing an access opening in a side wall of the duct of sufficient size to permit insertion of said damper vane therethrough.
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15. A method of installing a damper assembly in a duct, the damper assembly comprising a support base for external mounting to a side of a duct, the support base having inner and outer sides, a damper vane mounted to the support base for movement between open and closed positions, the damper vane being located inwardly of the inner side of the support base for positioning interiorly of the duct when the support base is mounted to the duct, and an actuator mounted to the support base and operatively connected to the damper vane for moving the damper between the open and closed positions, and wherein the support base includes a closure for closing an access opening in a side wall of the duct of sufficient size to permit insertion of the damper vane therethrough, the method comprising the steps of providing an access opening in the side wall of the duct that has a long dimension parallel to and a short dimension perpendicular to the axis of the duct, aligning the damper vane with the plane thereof generally parallel to the long dimension of the access opening and generally perpendicular to the short dimension of the access opening, inserting the damper vane through the access opening into the interior of duct, positioning the support base to close the access opening, and securing the support base directly to the side of the duct.
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16. A damper assembly for controlling the flow of fluid through a duct;
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a support base for external mounting to a side of a duct, said support base having inner and outer sides, a mounting post fixed with respect to said support base and extending inwardly from said support base along a longitudinal axis of said mounting post, a damper vane mounted to an inner portion of said mounting post for pivotal movement between open and closed positions about an axis perpendicular to the longitudinal axis of said mounting post, said damper vane being located inwardly of said inner side of said support base for positioning interiorly of the duct when said support base is mounted to the duct, and an actuator mounted to said support base and operatively connected to said damper vane for moving said damper vane between said open and closed positions separate from said mounting post. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification