Patent ID: 7159275
Filing Date: 2007-01-09
Classification: A47L

Abstract:
1. A glass surface cleaning machine, comprising: a supporting frame having a fluid receiving chamber provided therein and comprising a supporting arm frontwardly extended therefrom; a wiper blade transversely mounted on a front edge of said supporting arm of said supporting frame; and a vacuum device, supported by said supporting frame, comprising: at least a fluid suction nozzle communicating with said fluid receiving chamber and having a suction opening extended to position underneath said wiper blade; and a suction means for providing a sucking force at said suction opening of said fluid suction nozzle, wherein said suction means comprises a power source arranged to drive an impeller to create a low pressure within said fluid receiving chamber with respect to an atmosphere pressure so as to create said suction force at said suction opening adapted for removing any fluid existed along said wiper blade around said suction opening through said fluid suction nozzle and directing said fluid to deposit in said fluid receiving chamber, wherein said suction means further comprises an impeller housing supported on said supporting frame to receive said impeller, wherein said impeller housing has an air inlet communicating with said fluid receiving chamber and an air outlet arranged for discharging an air within said fluid receiving chamber through said impeller housing to create said suction force, wherein said suction means further comprises an air filter provided at said air inlet of said impeller housing for allowing said air within said fluid receiving chamber to pass into said impeller housing so as to prevent said fluid from entering thereinto.