Multi-tube diameter utility vent

Abstract

A vent assembly, including a backplate having plurality of concentric cylinders arranged in an order of decreasing diameter, such that the concentric cylinders are separated by score lines and at least one of the cylinders is recessed from the backplate, and a vent flapper. The assembly may include a tube configured to attach to one of the cylinders and one or more tube stoppers to prevent the tube from being over inserted. The assembly may include a face plate, a tooth formed on the backplate, and a tooth receiver is formed on the face plate. The score lines may be dual-sided score lines. The assembly may include the vent flapper having one or more air intake openings formed within the vent flapper, such that the air intake openings allow air to flow both in and out.

1 . A vent assembly, comprising:
 a backplate having plurality of concentric cylinders arranged in an order of decreasing diameter, wherein the concentric cylinders are separated by score lines and at least one of the concentric cylinders is recessed from the backplate.   
     
     
         2 . The vent assembly of  claim 1 , further comprising:
 a ventilation tube configured to attach to one of the concentric cylinders; and   one or more ventilation tube stoppers to prevent the ventilation tube from being over inserted.   
     
     
         3 . The vent assembly of  claim 2 , further comprising:
 a face plate;   a tooth formed on one of the backplate and the face plate; and   a tooth receiver formed on the other of the backplate and the face plate.   
     
     
         4 . The vent assembly of  claim 3 , wherein:
 the tooth is formed on the backplate, and   the tooth receiver is formed on the face plate.   
     
     
         5 . The vent assembly of  claim 4 , wherein the score lines are dual-sided score lines. 
     
     
         6 . The vent assembly of  claim 1 , wherein the score lines are dual-sided score lines. 
     
     
         7 . A vent assembly, comprising:
 a backplate;   a face plate;   a tooth formed on the backplate; and   a tooth receiver formed on the face plate.   
     
     
         8 . The vent assembly of  claim 7 ,
 wherein the backplate has a plurality of concentric cylinders arranged in an order of decreasing diameter and the concentric cylinders are separated by score lines; and   wherein at least one of the concentric cylinders is recessed from the backplate.   
     
     
         9 . The vent assembly of  claim 8 , further comprising:
 one or more ventilation tube stoppers to prevent the ventilation tube from being over inserted.   
     
     
         10 . The vent assembly of  claim 9 , wherein the score lines are dual-sided score lines. 
     
     
         11 . The vent assembly of  claim 10 , further comprising:
 a ventilation tube configured to attach to one of the concentric cylinders;   one of:
 a flapper, wherein the flapper is either solid or has holes for intake/exhaust; or 
 an inner mesh. 
   
     
     
         12 . A vent assembly, comprising:
 a vent flapper;   one or more air intake openings formed within the vent flapper, wherein the air intake openings allow air to flow both in and out;   a backplate having plurality of concentric cylinders arranged in an order of decreasing diameter, wherein the concentric cylinders are separated by score lines; and   a ventilation tube configured to attach to one of the concentric cylinders.   
     
     
         13 . The vent assembly of  claim 12 , further comprising:
 one or more ventilation tube stoppers to prevent the ventilation tube from being over inserted.   
     
     
         14 . The vent assembly of  claim 13 , further comprising:
 a face plate;   a tooth formed on one of the backplate and the face plate; and   a tooth receiver formed on the other of the backplate and the face plate.   
     
     
         15 . The vent assembly of  claim 14 , wherein:
 the tooth is formed on the backplate, and   the tooth receiver is formed on the face plate.   
     
     
         16 . The vent assembly of  claim 15 , wherein at least one of the concentric cylinders is recessed from the backplate. 
     
     
         17 . The vent assembly of  claim 12 , further comprising:
 a removable cover configured to block the air intake openings formed within the vent flapper.   
     
     
         18 . The vent assembly of  claim 12 , wherein the score lines are dual-sided. 
     
     
         19 . The vent assembly of  claim 18 , further comprising:
 one or more ventilation tube stoppers to prevent the ventilation tube from being over inserted.