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A gas diffuser assembly adapted for location in a volume of liquid or semiliquid material for dispersing minute bubbles of gas into the liquid. The assembly includes a housing formed of dense impermeable ceramic material and which defines an upwardly facing recess. A fitting formed of an inert mater

A gas diffuser assembly adapted for location in a volume of liquid or semiliquid material for dispersing minute bubbles of gas into the liquid. The assembly includes a housing formed of dense impermeable ceramic material and which defines an upwardly facing recess. A fitting formed of an inert material is located in the floor of the recess for connection to a gas supply tube. A diffuser element formed of porous ceramic material is secured to the housing over the recess to define an enclosed gas chamber. The diffuser disk and the housing are adhered together with a suitable cement.

대표청구항 ▼

[ We claim:] [15.] A gas diffuser assembly for dispersing a gas in the form of minute bubbles into a volume of liquid comprising:a housing formed of dense ceramic material, said housing having a floor with a central inlet opening formed therein, and a wall surrounding said floor, said wall having a

[ We claim:] [15.] A gas diffuser assembly for dispersing a gas in the form of minute bubbles into a volume of liquid comprising:a housing formed of dense ceramic material, said housing having a floor with a central inlet opening formed therein, and a wall surrounding said floor, said wall having a top portion,an inlet fitting secured to said floor, said inlet fitting comprising dense ceramic and said fitting being attached to said floor of said housing using an inorganic cement, anda diffuser plate formed of a porous ceramic material, and having upper external and lower internal surfaces, said plate being sealingly secured to the top portion of said wall with a cement so that said lower internal surface of said plate defines with said wall and floor a sealed gas chamber adapted to receive gas under pressure through said inlet fitting, to be diffused through said plate into the volume of liquid.