Gas burner head with extra simmer, burner base assembly and combination thereof

Abstract

A gas burner head with extra simmer capabilities, a burner base assembly and combinations thereof are disclosed. A gas burner head having one or a multiple fuel/air mixture exit ports with a simmer flange located above the ports and extending beyond the port exit by a predetermined distance allows the flame/fuel-air mixture from a given port to be fully or partially covered from above at a desired flame height or fuel-air mixture setting. The burner head can be a single or multiple piece assembly and can be used as part of a complete system or as an added-on component to an existing burner system. A burner base assembly has a burner base plate, a venturi and an orifice enclosure that creates a means to supply the required gas for combustion and also enables the burner head to be fully sealed. The venturi can be built-in as part of the burner base plate or made as a separate component and assembled through the burner base plate to create a sealed path. The orifice enclosure houses the gas injector orifice and can be installed in a separate compartment partitioned from the burner base plate by a sheet of metal (or partition plate) or in an enclosed area or plenum. Both the burner base plate/venturi combination and the orifice enclose may be securely attached to each other to maintain a predetermined distance between the gas orifice and the venturi inlet to allow a predetermined amount of primary air and gas mixture to be injected through the venturi into the burner head to create proper combustion. The burner base plate may be installed in a slightly raised position relative to the partition plate and/or orifice enclosure to create an air gap and the path through which primary air flows. A secondary source of primary air may be supplied through openings located around the orifice enclosure. The burner base assembly can be a single or multiple piece assembly and can be used as part of a complete system or as an added-on component to an existing burner system. Because of the rules governing abstracts, this abstract should not be used to construe the claims.

1 . A gas burner head assembly comprising: 
 a burner head having at least one fuel-air mixture exit port; and    a flange configured to be placed above said burner head so as to horizontally extend beyond said at least one fuel-air mixture port by a first predetermined distance and vertically extend beyond said at least one fuel-air mixture port by a second predetermined distance when placed on said burner head,    and wherein said flange is configured to fully cover from above a gas flame from said fuel-air mixture exit port at a first flame setting of said gas burner and to partially cover from above said gas flame when said gas burner is at a second flame setting.    
   
   
       2 . The gas burner head assembly of  claim 1  wherein said burner head additionally comprises at least one secondary fuel-air mixture exit port being of smaller diameter than said at least one fuel-air mixture exit port.  
   
   
       3 . The gas burner head assembly of  claim 1  wherein said first predetermined distance is approximately 0.4 inches (1.02 cm) in length and said second predetermined distance is approximately 0.4 inches (1.02 cm) in length.  
   
   
       4 . The gas burner head assembly of  claim 3  wherein said at least one fuel-air mixture exit port is approximately 0.1 inches (0.25 cm) in diameter.  
   
   
       5 . A flange, comprising: 
 a body portion; and    means to attach said body portion on top of a gas burner head, wherein said body portion, upon attachment to said burner head, horizontally extends beyond a periphery of said gas burner head by a first predetermined distance and vertically extends beyond said periphery by a second predetermined distance, and wherein said body portion is configured to fully cover from above a gas flame from said gas burner head at a first gas burner setting and to partially cover from above said gas flame at a second gas burner setting.    
   
   
       6 . A method, comprising: 
 placing a flange above a gas burner head such that said flange horizontally extends beyond a periphery of said gas burner head by a first predetermined distance and vertically extends beyond said periphery by a second predetermined distance.    
   
   
       7 . The method of  claim 6  additionally comprising adjusting the placement of said flange such that said flange fully covers from above a gas flame from said gas burner head at a first gas burner setting and partially covers from above said gas flame at a second gas burner setting.  
   
   
       8 . A burner base assembly comprising: 
 a burner plate having a venturi; and    an orifice enclosure configured to supply a fuel-air mixture to said venturi, said orifice enclosure located proximate to said burner plate, said orifice enclosure and said burner plate being configured such that an air pathway is created between said burner plate and said orifice enclosure to allow air to flow therethrough.    
   
   
       9 . The burner base assembly of  claim 8  wherein said venturi is one of constructed integrally with said burner plate or attached to said burner plate.  
   
   
       10 . The burner base assembly of  claim 8  wherein said air pathway is tortuous to prevent liquid from flowing therethrough.  
   
   
       11 . The burner base assembly of  claim 8  wherein said air pathway created between said burner plate and said orifice enclosure is approximately 0.15 inches (0.38 cm) in height.  
   
   
       12 . The burner base assembly of  claim 8  wherein said orifice enclosure comprises a protrusion of approximately 0.375 inches (0.953 cm) in height.  
   
   
       13 . The burner base assembly of  claim 8  wherein said orifice enclosure comprises at least one aperture to allow air to flow therethrough.  
   
   
       14 . An assembly, comprising: 
 a burner base assembly; and    a gas burner head assembly, said gas burner head assembly comprising: 
 a burner head having at least one fuel-air mixture exit port; and  
 a flange configured to be placed above said burner head so as to horizontally extend beyond said at least one fuel-air mixture port by a first predetermined distance and vertically extend beyond said at least one fuel-air mixture port by a second predetermined distance when placed on said burner head, and wherein said flange is configured to fully cover from above a gas flame from said fuel-air mixture exit port at a first flame setting of said gas burner and to partially cover from above said gas flame when said gas burner is at a second flame setting.  
   
   
   
       15 . The assembly of  claim 14  wherein said burner base assembly comprises: 
 a burner plate having a venturi; and    an orifice enclosure configured to supply a fuel-air mixture to said venturi, said orifice enclosure located proximate to said burner plate, said orifice enclosure and said burner plate being configured such that an air pathway is created between said burner plate and said orifice enclosure to allow air to flow therethrough.    
   
   
       16 . The assembly of  claim 15  wherein said air pathway is tortuous to prevent liquid from flowing therethrough.  
   
   
       17 . An assembly, comprising: 
 a gas burner head assembly; and    a burner base assembly, said burner base assembly comprising: 
 a burner plate having a venturi; and  
 an orifice enclosure configured to supply a fuel-air mixture to said venturi, said orifice enclosure located proximate to said burner plate, said orifice enclosure and said burner plate being configured such that an air pathway is created between said burner plate and said orifice enclosure to allow air to flow therethrough.  
   
   
   
       18 . The assembly of  claim 17  wherein said air pathway is tortuous to prevent liquid from flowing therethrough.  
   
   
       19 . The assembly of  claim 17  wherein said gas burner head assembly comprises: 
 a burner head having at least one fuel-air mixture exit port; and    a flange configured to be placed above said burner head so as to horizontally extend beyond said at least one fuel-air mixture port by a first predetermined distance and vertically extend beyond said at least one fuel-air mixture port by a second predetermined distance when placed on said burner head, and wherein said flange is configured to fully cover from above a gas flame from said fuel-air mixture exit port at a first flame setting of said gas burner and to partially cover from above said gas flame when said gas burner is at a second flame setting.