Vent cover plate

Inactive Publication Date: 2010-01-21
PREVOST LEON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the problems of higher pressure air systems (commonly known as Hi-Velocity systems) is that conventional damper assemblies such as those described in U.S. Pat. Nos. 4,513,655-4,628,954-4,653,725-5,411,438-5,806,830-5,813,430-5,857,617-5,921,277 and 6,082,704 will cause air noise.

Method used

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  • Vent cover plate
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Examples

Experimental program
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Embodiment Construction

[0031]In FIG. 1 is shown an embodiment of the invention. The duct system from a central air source (not shown) provides a branch duct 10 communicating to a termination receptacle generally indicated at 11 which co-operates with a vent plate 12. The termination receptacle is formed in two pieces including a housing 13 and a damper sleeve 14.

[0032]The housing 13 forms a generally cylindrical wall 15 with a closed bottom end 16 and an open top end. At the top end is provided a peripheral flange 17 which as shown is square in plan view but can be circular or can be formed simply by a plurality of tabs with the flange lying in a plane which is at right angles to the longitudinal axis 18 of the cylindrical housing 13. The flange 17 is attached to the underside of a floor (not shown) forming a mounting surface for the housing.

[0033]In the alternative the flange can be mounted on the inside surface of a sheathing material forming a wall surface or on the top surface of a sheathing material ...

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PUM

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Abstract

A vent plate for mounting in a termination receptacle for an air supply duct has an upper plate portion integrally molded with a sleeve portion having a hollow interior for receiving air from the termination receptacle and communicating with a central hole of the plate portion. The plate portion has a peripheral flange portion projecting outwardly from and surrounding the central area including a down turned edge flange so as to terminate at an outer sharp edge which is spaced axially from the plane of the front face. A separate center plate with a series of holes so as allow the air to escape is shaped and arranged to be received in the central opening and is held in place by peripheral ribs and sits against supporting abutments in the sleeve.

Description

[0001]The invention relates to a vent cover plate for use in a vent termination receptacle of an HVAC system.BACKGROUND OF THE INVENTION[0002]In the construction of HVAC systems, a central air handler delivers air to the interior of the structure through a main plenum duct, and a series of branch ducts which terminate at a vent termination receptacle which attaches to a vent plate for controlling the discharge of air into the space.[0003]With a higher pressure air system such as that disclosed in U.S. Pat. No. 6,800,024 (Prevost) issued Oct. 5, 2004, the vent termination receptacle includes a housing which is preferably of greater cross sectional area than the supply duct so that the air leaving the ductwork at the vents expands rapidly as it enters the housing and creates a lower air pressure zone around the vent. This is a practical application of Bernoulli's theorem and the Venturi effect. One of the problems of higher pressure air systems (commonly known as Hi-Velocity systems) ...

Claims

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Application Information

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IPC IPC(8): F24F13/08
CPCF24F13/082
InventorPREVOST, LEON
OwnerPREVOST LEON