Thin Profile Multi-Manifold Multi-Tube Burner for Gas Grills

Abstract

A barbecue grill and a burner assembly are disclosed, the burner assembly having a venturi tube for conveying gas to the burner, a burner tube having front and back manifolds, with the venturi tube connected to the front and back manifolds and having flow restrictors at the connection interface to at least partially inhibit entry of gas into the front manifold.

1 . A burner assembly for a gas barbeque grill having a gas supply comprising at least one burner tube with a front end, a back end and a plurality of gas outlet parts formed therein, a front manifold connected to said front end and a back manifold connected to said back end, both of said manifolds being in fluid communication with said burner tube to allow entry of a flammable gas/air mixture, a venturi tube connected to said front and back manifolds and to the gas supply for transferring gas to the burner assembly, and said venturi tube including flow restriction means at the venturi tube/front manifold interface, to at least partially inhibit the entry of the gas/air mixture. 
     
     
         2 . A burner assembly as defined in  claim 1  in which said venturi tube includes flow restriction means at the venturi tube/back manifold interface to at least partially inhibit the entry of the gas/air mixture. 
     
     
         3 . A burner assembly as defined in  claim 1  including a plurality of burner tubes corrected to said front and back manifolds. 
     
     
         4 . A burner assembly as defined in  claim 1  including at least one additional burner tube with a front end, a back end, and a plurality of gas outlet ports formed therein, an additional front manifold connected to said front end and an additional back manifold connected to said back end, both of said additional manifolds being in fluid communication with said additional burner tube to allow entry of a flammable gas/air mixture, an additional venturi tube connected to said additional front and back manifolds and to the gas supply for transferring gas to the burner assembly, and said additional venturi tube including flow restriction means at the venturi tube/front manifold interface to at least partially inhibit the entry of the gas air mixture. 
     
     
         5 . A burner assembly as defined in  claim 4  in which said additional venturi tube includes flow restriction means at the venturi tube/back manifold interface to at least partially inhibit the entry of the gas/air mixture. 
     
     
         6 . A burner assembly as defined in  claim 4  including a plurality of additional burner tubes connected to said additional front and back manifolds. 
     
     
         7 . A burner assembly for a gas barbeque grill having a gas supply comprising at least one burner tube with a front end, a back end and a plurality of gas outlet ports formed therein, a front manifold connected to said front end and a back manifold connected to said back end, both of said manifolds being in fluid communication with said burner tube to allow entry of a flammable gas/air mixture, a venturi tube connected to said front and back manifolds and to the gas supply for transferring gas to the burner assembly, and said front manifold including flow restriction means to at least partially inhibit the entry of the gas/air mixture. 
     
     
         8 . A burner assembly as defined in  claim 1  in which said back manifold includes flow restriction means to at least partially inhibit the entry of the gas/air mixture. 
     
     
         9 . A burner assembly as defined in  claim 1  including a plurality of burner tubes corrected to said front and back manifolds. 
     
     
         10 . A burner assembly as defined in  claim 1  including at least one additional burner tube with a front end, a back end, and a plurality of gas outlet ports formed therein, an additional front manifold connected to said front end and an additional back manifold connected to said back end, both of said additional manifolds being in fluid communication with said additional burner tube to allow entry of a flammable gas/air mixture, an additional venturi tube connected to said additional front and back manifolds and to the gas supply for transferring gas to the burner assembly, and said additional front manifold including flow restriction means to at least partially inhibit the entry of the gas air mixture. 
     
     
         11 . A burner assembly as defined in  claim 4  in which said additional back manifold includes flow restriction means to at least partially inhibit the entry of the gas/air mixture. 
     
     
         12 . A burner assembly as defined in  claim 4  including a plurality of additional burner tubes connected to said additional front and back manifolds. 
     
     
         13 . A gas barbeque grill comprising a firebox with a burner assembly mounted therein, a cooking grid mounted above said burner assembly, and a gas supply connected to said burner assembly, said burner assembly including at least one burner tube with a front end, a back end and a plurality of gas outlet ports formed therein, a front manifold connected to said front end and a back manifold connected to said back end, both of said manifolds being in fluid communication with said burner tube to allow entry of a flammable gas/air mixture, a venturi tube connected to said front manifold and to the gas supply for transferring gas to the burner assembly, and said venturi tube including flow restriction means at the venturi tube/front manifold interface to at least partially inhibit the entry of the gas/air mixture. 
     
     
         14 . A gas barbeque grill as define in  claim 13  in which said venturi tube includes flow restriction means at the venturi tube/back manifold interface to at least partially inhibit the entry of the gas/air mixture. 
     
     
         15 . A gas barbeque grill as defined in  claim 14  in which the flow restriction means at the venturi tube/front manifold interface are smaller than the flow restriction means at the venturi tube/back manifold interface.