Patent ID: 6391208
Filing Date: 2002-05-21
Classification: A47L,Y10T

Abstract:
A method for filtering insoluble debris from a combined wastewater/debris stream of a carpet cleaning device which comprises the steps of:transporting said wastewater/debris stream into a filter having a casing, said casing having a partition extending into said casing to define a primary chamber and a secondary chamber, said filter also including a main siphon mounted in said partition to place said primary chamber in fluid communication with said secondary chamber; containing said stream in said primary chamber to establish a primary fluid level; settling said debris in said primary chamber; moving said wastewater from said primary chamber to said secondary chamber when said primary fluid level reaches a first predetermined level in said primary chamber, said moving step establishing a secondary fluid level in said secondary chamber; and, transferring said wastewater from said secondary chamber when said secondary fluid level reaches a second predetermined level, said transferring step being accomplished simultaneously with said transporting step.