Atmospheric gas burner of radiant type

Abstract

A burner of radiant atmospheric type, comprising a porous ceramic element, positioned to close a chamber into which a gas/air mixture is fed, there being provided at least a second chamber adjacent to the first, both being closed by the porous ceramic element.

We claim:  
     
         1 . A burner of radiant atmospheric type, comprising a porous ceramic element, positioned to close a chamber into which a gas/air mixture is fed, and having at least a second chamber adjacent to the first, both being closed by the porous ceramic element.  
     
     
         2 . A burner as claimed in  claim 1 , wherein the feed to said two chambers takes place via a valve means controlled by a single knob.  
     
     
         3 . A burner as claimed in  claim 1 , wherein the porous ceramic element is common to the two chambers.  
     
     
         4 . A burner as claimed in  claim 1 , wherein the porous ceramic element is separate for each of said chambers.  
     
     
         5 . A burner as claimed in  claim 4 , wherein during a first part of the travel of its single knob, the valve member controls the gas feed to a first chamber from a minimum to a maximum value, whereas during a second part of said travel it controls the gas feed to the second chamber and allows feed to the first chamber at maximum value.  
     
     
         6 . A burner as claimed in  claim 5 , wherein the two chambers are concentric.  
     
     
         7 . A burner as claimed in  claim 6 , wherein the two chambers are side by side or adjacent.