Patent ID: 6889964

Claim:
A diffuser assembly for finely dispersing a gas or a liquid flowable material comprising: a housing formed of a dense ceramic material, said housing including a base portion having a floor and an integral fitting portion having a feed tube for transfer of said medium to said base portion, said base portion having an undercut shoulder extending along the perimeter of said base portion; and a diffuser plate formed of a porous ceramic material, said diffuser plate having upper external and lower internal surfaces and a rim portion extending along the perimeter of said plate, said shoulder portion of said base portion extending around at least a part of said rim portion of said diffuser portion so as to securely engage said rim portion, said internal surface of said diffuser plate and said floor of said base portion defining a chamber adapted to receive said flowable material under pressure through the feed tube of said fitting portion, said flowable material being capable of being diffused through said diffuser plate.