Plastic register boot

Abstract

A register boot adapted for connection to ductwork and in a ducted heating or cooling system and has a unitary body of plastic. The unitary body has a substantially circular first opening for connecting to ductwork. The unitary body has a substantially rectangular second opening for connection to a register. The unitary body defines an air pathway between the first opening and the second opening. The unitary body preferably includes a first collar of a first diameter operatively connection to a second collar of a second diameter defining the first opening, the first diameter being greater than the second diameter. A fitting with the first and second collar is also disclosed. The fitting can be a register boot, flexible joint, or other type of fitting.

1 . A register boot adapted for connection to ductwork in a ducted heating or cooling system comprising: 
 a unitary body of plastic without seams;    the unitary body having a substantially circular first opening for connecting to the ductwork;    the unitary body having a substantially rectangular second opening for connection to a register;    the unitary body defining an air pathway between the first opening and the second opening.    
     
     
         2 . The register boot of  claim 1  wherein the unitary body further comprises a first collar of a first diameter operatively connected to and immediately adjacent a second collar of a second diameter defining the first opening, the first diameter being greater than the second diameter.  
     
     
         3 . The register boot of  claim 2  wherein the second collar is adapted to fit 6 inch diameter ductwork when the first collar is removed, the first collar is adapted to fit 7 inch diameter ductwork.  
     
     
         4 . The register boot of  claim 3  further comprising a first rib on the first collar and a second rib on the second collar for connecting the register boot to flex pipe.  
     
     
         5 . The register boot of  claim 1  wherein the first opening defines a first plane 90 degrees perpendicular to a second plane defined by the second opening.  
     
     
         6 . The regular boot of  claim 1  wherein the plastic is a thermoplastic.  
     
     
         7 . The register boot of  claim 1  wherein the unitary body is formed by injection molding.  
     
     
         8 . The register boot of  claim 1  further comprising a flange positioned at the second opening and extending outwardly from the second opening to support the register boot.  
     
     
         9 . The register boot of  claim 8  further comprising a plurality of tabs extending outwardly from the flange, and co-planar with the flange for assisting in installation of the register boot in a floor.  
     
     
         10 . A register boot for providing a tight connection between ductwork in a ducted heating or cooling system and a register to prevent loss of air through the register boot while providing for ease of installation, comprising: 
 a unitary body formed of plastic for preventing the loss of air, the unitary body of one-piece construction and without seams;    a first opening within the uniform body for receiving air from the ductwork;    a second opening within the unitary body for passing air to the register;    the second opening of substantially rectangular shape and adapted for connection to the register.    
     
     
         11 . The register boot of  claim 10  wherein the unitary body is adapted to receive 7 inch ductwork.  
     
     
         12 . The register boot of  claim 10  wherein the unitary body is adapted to receive 6 inch ductwork.  
     
     
         13 . The register boot of  claim 10  wherein the unitary body is adapted to be configured to fit ductwork of either a first size or a second size.  
     
     
         14 . A fitting for providing a tight connection to prevent loss of air from ductwork while providing for ease of installation, comprising: 
 a unitary body formed of plastic for preventing the loss of air, the unitary body of one-piece construction and without seams;    a first opening within the uniform body for receiving air from the ductwork;    the unitary body comprising a first collar of a first diameter operatively connected to and immediately adjacent a second collar of a second diameter defining the first opening, the first diameter being greater than the second diameter;    wherein the second collar is adapted to fit ductwork of the second diameter when the first collar is removed, the first collar adapted to fit ductwork of the first diameter;    a second opening within the unitary body for passing air received through the first opening.    
     
     
         15 . The fitting of  claim 14  wherein the unitary body is flexible thereby forming a flexible joint.  
     
     
         16 . The fitting of  claim 14  wherein the fitting is a register boot and the second opening is substantially rectangular for connecting to a register.  
     
     
         17 . The fitting of  claim 14  further comprising a first rib operatively connected to the first collar and a second rib operatively connected to the second collar wherein the first rib and the second rib are configured to assist in providing tight connection between the fitting and flex pipe.