Patent ID: 9707498
Date: 2017-07-18
CPC Classifications: B01D

Claim:
1. A system of removing particulate matter in a fluid to be filtered, comprising: a generally cylindrical filter housing having an upper chamber and a lower chamber; an exterior-to-interior hollow core filter in said upper chamber, said exterior-to-interior filter having an open end and a closed end; an interior-to-exterior hollow core filter in said lower chamber, said interior-to-exterior filter having an open end and a closed end, said open end being in fluid communication with the bottom portion of said upper chamber; an inlet for introducing a fluid to be filtered located on the housing between the exterior-to-interior filter in the upper chamber and the interior-to-exterior filter in the lower chamber extending at an angle inside the housing to direct the fluid flow in a circular flow around the inside of the filter housing; a ring engagingly surrounding an uppermost portion of said interior-to-exterior hollow core filter and extending to an interior surface of said lower chamber defining an annular chamber therebelow; a clean fluid housing outlet in fluid communication with said open end of said exterior-to-interior hollow core filter; a first gas inlet; and a gas diffuser in fluid communication with said first gas inlet and located within the hollow core of the exterior-to-interior filter in the upper chamber of the filter housing.