초록

An air filter for removing particulate matter from an airstream by cyclonic action and having replaceable primary and secondary filter elements.

대표청구항 ▼

An air filter for filtering particulate matter from an airstream comprising: a cylindrical canister having an open upper end and a closed lower end forming a base; an unfiltered air inlet formed in the side wall of said canister; an air deflector disposed within said canister for directing the flow

An air filter for filtering particulate matter from an airstream comprising: a cylindrical canister having an open upper end and a closed lower end forming a base; an unfiltered air inlet formed in the side wall of said canister; an air deflector disposed within said canister for directing the flow of air entering said canister via said unfiltered air inlet into a cyclonic path to swirl around the interior of said canister; a plurality of spaced collector baffles attached to the inner lower wall of said canister; a rigid cone-shaped screen supported in an inverted position by means in the open end of said canister; a cone-shaped primary filter element disposed over the exterior surface of said cone-shaped screen; a flat circular secondary filter pad covering the open base of said cone-shaped primary filter element; and a detachable cover member covering the open end of said canister and having a filtered air outlet formed therein.