Patent ID: 6106712
Filing Date: 2000-08-22
Classification: B01D,F16N

Abstract:
A collection system for collecting liquid waste from a vehicle and separating non-water soluble contaminants from water in the liquid waste, the system comprising:a support member having an upper surface and opposite first and second ends, said upper surface being for supporting the vehicle when the vehicle is positioned on the upper surface;a ramp assembly extending from said first end of the support member for facilitating positioning the vehicle on the upper surface of the support member, said ramp assembly further being for elevating said first end of said support member relative to said second end of said support member;a containment wall extending upwardly from said upper surface for collecting liquid waste falling from the vehicle when the vehicle is positioned on said upper surface of said support member;a collection member having a hollow interior;wherein said support member includes an aperture in said upper surface proximate said second end and a duct having a first end in environmental communication with said aperture whereby gravity urges said liquid waste collected through said aperture into said duct;wherein said collection member includes a dividing wall separating said hollow interior into a first chamber and a second chamber, said duct having a second end in environmental communication with said first chamber, said first end of said duct being elevated relative to said second end of said duct whereby liquid waste collected passes through the duct and into the first chamber such that said liquid waste is collected in said first chamber;wherein non-water soluble contaminants in said liquid waste having a lower density than water are positioned above an upper surface of water collected in said first chamber; anda tube having a lower end in communication with said first chamber through a hole in said dividing wall, said tube having an open upper end located at a higher vertical elevation than an upper edge of said hole in said dividing wall, said upper end of said tube being in environmental communication with said second chamber whereby non-water soluble contaminants positioned above said upper surface of water collected in said first chamber are retained in the first chamber as liquid is drawn through said tube into said second chamber when said upper surface of water collected in said first chamber is at a higher elevation than said upper edge of said hole in said dividing wall.