Patent ID: 7815701

Claim:
A portable apparatus for cleaning an elongated air filter which is generally employed in internal combustion engines on heavy off-road or over the road vehicles, said apparatus comprising: (a) a body having each of a first end, an opposed second end and an exterior peripheral surface sized and shaped to pass into a center aperture or cavity of the air filter during use of said apparatus; (b) a generally closed chamber which is formed within said body and which has an irregular inner wall surface capable of providing resistance to a fluid flow within said chamber; (c) an elongated shaft having a longitudinal bore formed there through and a first end thereof mounted for rotation adjacent to and spaced from said first end of said body and external to said chamber, said elongated shaft extending outwardly from said first end of said body, along a longitudinal axis thereof, through said chamber, wherein an outer surface of said elongated shaft is sized for insertion into the center aperture or cavity of the air filter; (d) plurality of nozzles secured, in operative communication with said longitudinal bore, to said elongated shaft adjacent to and spaced from said first end thereof, said plurality of nozzles are positioned within said chamber for discharging said fluid flow there into; (e) plurality of orifices radially formed through a wall of a portion of said elongated shaft which extends from said chamber, said plurality of orifices arranged in a predetermined pattern; and (f) a fluid communication assembly secured to said body in fluid communication with said longitudinal bore of said elongated shaft, said fluid communication assembly is connectable to a source of fluid under pressure for supplying said fluid under pressure to said longitudinal bore, whereby said supplied fluid exits through said plurality of jets forming said fluid flow that contacts said irregular inner wall surface of said chamber causing rotation of said elongated shaft in a direction which is opposite to a direction of said fluid flow and exits said plurality of orifices in a direction toward an inner surface of a filtering medium of the air filter causing contaminants to exit the air filtering medium through an outer surface thereof.