US6345768B1 
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            2002-02-12 
            
            
           
          Control valve for vessel gas water heater 
        
         
        
          
            
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            2003-06-03 
            
            
           
          Gas control valve in water heater 
        
         
        
          
            
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            1988-03-08 
            
            
           
          Fuel control valve construction, parts therefor and methods of making the same 
        
         
        
          
            
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            2000-07-04 
            
            
           
          Control device for gas burners 
        
         
        
          
            
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            1953-08-25 
            
            
           
          Universal safety temperature control 
        
         
        
          
            
                GB843491A 
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            1988-11-29 
            
            
           
          Fuel control valve construction, parts therefor and methods of making the same 
        
         
        
          
            
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            1990-05-01 
            
            
           
          Fuel control valve construction, parts therefor and methods of making the same 
        
         
        
          
            
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            1991-09-03 
            
            
           
          Cam operated fuel valve 
        
         
        
          
            
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            1972-08-22 
            
            
           
          Thermostatic flow control device 
        
         
        
          
            
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            1990-11-20 
            
            
           
          Fuel control valve construction, parts therefor and methods of making the same 
        
         
        
          
            
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            1989-05-16 
            
            
           
          Fuel control valve construction, parts therefor, and methods of making the same 
        
         
        
          
            
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            2017-04-11 
            
            
           
          Gas flow controller for use in gas fired apparatus 
        
         
        
          
            
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            2018-04-17 
            
            
           
          Gas flow controller including valve decoupling mechanism 
        
         
        
          
            
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            1976-09-22 
            
            
           
          Control systems for gaseous fuel fired appliances 
      
         
        
          
            
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            1990-05-29 
            
            
           
          Fuel control valve construction, parts therefor and methods 
        
         
        
          
            
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            1959-03-03 
            
            
           
          Fuel control apparatus 
        
         
        
          
            
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            2000-04-05 
            
            
           
          Control for a gas heating appliance 
        
         
        
          
            
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            1954-08-18 
            
            
           
          Improvements in or relating to control apparatus for fuel burning appliances 
      
         
        
          
            
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            1957-01-02 
            
            
           
          Improvements in control devices for gaseous fuel burners 
      
         
        
          
            
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            1960-05-25 
            
            
           
          Fluid control valves