Patent ID: 6866705

Claim:
A vacuum system comprising: (a) a cannister; (b) a volume of liquid having a level in said cannister; (c) an inlet for air including an entrained contaminant, said inlet located below said level of said liquid; (d) a mixer for mixing said liquid with said air and said contaminant from said inlet to facilitate wetting of said contaminant with said liquid; (e) a separator comprising a curved surface spaced above said level of said liquid and arranged in a path of a flow of said mixture of said air, contaminant, and liquid from said mixer, said curved surface deflecting said flow of said mixture so as to cause said liquid and wetted contaminant to separate from said air, cling to said curved surface, and drain into said volume of liquid; and (f) a vacuum source to create an air pressure differential between said inlet and an air outlet from said tank.