Patent ID: 6578714
Filing Date: 2003-06-17
Classification: B01D

Abstract:
A mobile power washer for cleaning surfaces, comprising:a fluid tank; a high pressure pump connected to said fluid tank and generating high pressure fluid; a retrieval unit connected to said high pressure pump comprising a nozzle disposed to spray said high pressure fluid; and a retrieval unit discharge adapted to collect a polluted fluid of said high pressure fluid and debris dislodged by said high pressure fluid; a separation device connected to said retrieval unit discharge adapted to separate large debris particles from said polluted fluid, comprising: an endless screen installed upon rotatable cylinders; a distributor disposed above said screen adapted to discharge said polluted fluid onto said screen; a drive source adapted to rotate said cylinders; a basin disposed below said screen adapted to collect separated fluid passing through said screen; a disposal mechanism adapted to discard said large debris particles disposed on said screen; a discharge opening disposed to discharge said large debris particles; and a discharge port disposed to discharge said separated fluid after passing through said screen; a container connected to said discharge opening disposed to receive said large debris particles; a filtering system connected to said discharge port disposed to receive said fluid, said filtering system being adapted to filter small debris particles from said fluid; said fluid tank being connected to said filtering system and receiving filtered fluid after said small debris particles are filtered therefrom.