Vent cover plate

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.

1 . A vent plate for mounting in a termination receptacle for an air supply duct, the vent plate comprising:
 a plate portion;   a sleeve portion connected to the plate portion so as to extend to one side of the plate portion;   the sleeve portion having a hollow interior for receiving air from the termination receptacle and communicating with a central area of the plate portion which has openings to allow passage of air through the plate portion;   the plate portion having a peripheral flange portion projecting outwardly from and surrounding the central area;   wherein the plate portion includes a central opening at the central area and a separate center portion which is perforated with a series of holes so as allow the air to escape;   the center portion being shaped and arranged to be received in the central opening and to be removed from the central opening leaving the central opening open.   
   
   
       2 . The vent plate according to  claim 1  wherein the center portion has a front face with is coplanar with a front face of the peripheral flange portion. 
   
   
       3 . The vent plate according to  claim 1  wherein the center portion has a peripheral wall engaging into an annular wall surrounding the center opening wherein the peripheral wall and the annular wall have cooperating peripheral ribs for snap fastening the center portion into the opening. 
   
   
       4 . The vent plate according to  claim 1  wherein the sleeve has a plurality of angularly spaced inwardly projecting abutment members for engaging a rear face of the center portion. 
   
   
       5 . The vent plate according to  claim 1  wherein the sleeve has a plurality of angularly spaced longitudinally extending ribs. 
   
   
       6 . The vent plate according to  claim 1  wherein the peripheral flange portion includes a down turned edge flange so as to terminate at an outer edge which is spaced axially from the plane of the front face. 
   
   
       7 . The vent plate according to  claim 1  wherein the outer edge lies in a plane substantially co-planar with a rear face of the center portion. 
   
   
       8 . The vent plate according to  claim 1  wherein the sleeve and the flange portion are integrally molded from a plastics material. 
   
   
       9 . A vent plate for mounting in a termination receptacle for an air supply duct, the vent plate comprising:
 a plate portion;   a sleeve portion connected to the plate portion so as to extend to one side of the plate portion;   the sleeve portion having a hollow interior for receiving air from the termination receptacle and communicating with a central area of the plate portion which has openings to allow passage of air through the plate portion;   the plate portion having a peripheral flange portion projecting outwardly from and surrounding the central area;   wherein the peripheral flange portion includes a down turned edge flange so as to terminate at an outer edge which is spaced axially from the plane of the front face.   
   
   
       10 . The vent plate according to  claim 9  wherein the sleeve and the flange portion are integrally molded from a plastics material.