Air cleaner assembly

Claim 1

A CENTRIFUGAL AIR CLEANER FOR SEPARATING SOLID IMPURITIES FROM AIR COMPRISING: A CYLINDRICAL CASING HAVING AIR INLET AND OUTLET ENDS; A ROTOR ASSEMBLY ROTATABLE SUPPORTED CENTRALLY WITHIN THE CASING BETWEN THE AIR INLET AND OUTLET ENDS, SAID ROTOR ASSEMBLY COMPRISING; AN INNER GUIDE VANE RING, AN OUTER GUIDE VANE RING CIRCUMJACENT THE INNER RING AND SPACED RADIALLY OUTWARDLY THERFROM, A DUST PORT RING SUPPORTING THE OUTER RING RELATIVE TO THE INNER RING AND PROVIDING A CLOSURE AT THE AIR OUTLET END OF SAID ROTOR, A PLURALITY OF CIRCUMFERENTIALLY SPACED APERTURES FORMED ADJACENT THE OUTER PERIPHERY OF THE DUST PORT RIGN, A PLURALITY OF CIRCUMFERENTIALLY SPACED AIR EXHAUSE PORTS FORMED ADJACENT THE INNER PERIPHERY OF THE DUST POST RING, SAID APERTURES BEING CIRCUMFERENTIALLY OFFSET WITH RESPECT TO SAID AIR EXHAUST PORTS IN A DIRECTION OPPOSITE TO THAT OF ROTOR RATATION, AND A PLURALITY OF GUIDE VANES SPACED CIRCUMFERENTIALLY BETWEEN SAID INNER AND OUTER GUIDE VANE RINGS, EACH SAID VANE EXTENDING GENERALLY IN A RADIAL DIRECTION FROM THE INNER GUIDE VANE TO RING TO THE OUTER GUIDE VANE RING ALONG A PATH FIRST BORDERING A RADIAL EDGE OF AN ASSOCIATED AIR EXHAUSE PORT THENCE GENERALLY CIRCUMFERENTIALLY INA DIRECTION OPPOSITE THE DIRECTION OF ROTOR ROTATION AND THEN GENERALLY RADIALLY AGAIN TO THE OUTER GUIDE VANE RING AT A POSITION ADJACENT THE MOST DISTANT EDGE OF THE NEAREST ASSOCIATED APERTURE WHEREBY A PLURALITY OF AIR PURIFYING CHAMBERS ARE FORMED IN SAID ROTOR ASSEMBLY.