157019 ⎘
Construction of valves or dampers for controlling air supply or draught pivoted about a single axis but having not other movement with axis perpendicular to face
Systems and methods for extending the turndown ratio of gas-fired burner systems
#2Outdoor cooking system with improved heat and flame control
#3Systems and methods for extending the turndown ratio of gas-fired burner systems
#4Hot water storage-type boiler having both heat amount proportional control function and backflow prevention function
#5Solid fuel burning appliance having an air intake control assembly and method for controlling an air intake into a combustion chamber of a solid fuel burning appliance
#6Modulating burner with venturi damper
#7Modulating burner with venturi damper
#8Air diverting system for a seed drying bin
#9Device for controlling regenerative burners