Patent ID: 8491686

Claim:
A portable dust collection arrangement, comprising; a dust separation unit having a body defining a dust separation chamber in which process dust is separated from an air flow in which the process dust is entrained; an air inlet conduit introducing said air flow into said dust separation chamber; an air outlet conduit exhausting from the dust separation chamber the air flow from which the process dust has been separated; and a lower discharge port from which the separated process dust proceeds; a support frame supporting the body of the dust separation unit above a floor surface, the frame including a plurality of leg members that rise from said floor surface and each having a roller member secured at a lower end thereof and an attachment member securing the leg member to the body of the dust separation unit; and a dust receptacle assembly disposed beneath the lower discharge port of the dust separation unit to receive and retain the separated process dust that falls out from said dust separation chamber, including a dust collection barrel having a bottom, a side wall rising to a rim, an open top, and a plurality of casters at said bottom supporting said barrel on said floor surface such that said rim is at a predetermined first distance above said floor surface; a lid for removably sealing against the rim of the dust collection barrel, including a dust conduit connecting the lower discharge port to a penetration in said lid to permit the dust to fall into the barrel, and mounting means affixing the lid to said support frame below the dust separation unit such that the lid is supported at a fixed predetermined second elevation above said floor surface and higher than said first elevation so as to create a clearance between the rim of the dust collection barrel and the lid; and a plurality of latch elements positioned at predetermined intervals around the lid and engaging between the lid and the dust collection barrel, the latch elements being operative to close and pull the barrel upwards with the rim against the lid and with the casters of the dust collection barrel lifted off the floor surface, and operative to open and release the barrel downwards so that the barrel may be rolled from under said lid for emptying the contents of said barrel.