Patent ID: 7282074

Claim:
In combination, a dust producing source of the type having a dust discharge duct; a first flexible hose extending from the discharge duct of said source; a shop vacuum machine for providing suction at a suction port to draw an airflow therefrom and to collect and store dust therein and pass the air from said airflow therefrom to the ambient; a second flexible hose extending to the suction port of said shop vacuum machine; and an auxiliary dust collection arrangement interposed between the dust producing source and said shop vacuum machine for intercepting and removing dust carried in the airflow from the source to the shop vacuum machine; the auxiliary dust collection arrangement comprising a) a cyclonic separator having a conic body, a vortex pipe that extends up from within said conic body, an inlet pipe onto which said first flexible hose is removably fitted, and an air outlet pipe atop said conic body onto which said second flexible hose is removably fitted; such that dust carried in the airflow that arrives in said first flexible conduit separates in said conic body and proceeds to a lower nose of said conic body; b) a dust collection drum disposed beneath said cyclonic separator, the drum having a generally rigid wall and a mouth at its upper end; and c) a lid sealably fitting onto the mouth of the drum, and having a central dust intake opening which connects to and supports the nose of said conic body, such that the dust separated from said airflow descends into said drum.