Patent ID: 8028370
Filing Date: 2011-10-04
Classification: A47L

Abstract:
1. A cleaning machine configured to clean dirt, the cleaning machine comprising: a base assembly; a liquid distribution system configured to distribute cleaning solution; a suction nozzle assembly mounted to said base assembly, said suction nozzle assembly including a front nozzle portion and a rear nozzle portion, said front nozzle portion defining a fluid flow path having an inlet opening and an outlet opening, said rear nozzle portion defining a fluid flow path having an inlet opening and an outlet opening; a suction source in fluid communication with said suction nozzle and configured to apply suction to draw the cleaning solution and dirt through the suction nozzle assembly; a recovery tank in fluid communication with said suction nozzle assembly, said recovery tank configured to collect the cleaning solution and dirt drawn through the suction nozzle assembly; and a valve assembly in fluid communication with said suction nozzle assembly, wherein in response to a direction of movement of the base assembly, said valve assembly partially covers the front nozzle portion and partially covers the rear nozzle portion such that the cleaning solution and dirt is drawn through both said front nozzle portion and said rear nozzle portion.