Patent ID: 7552503
Filing Date: 2009-06-30
Classification: B08B,H01L

Abstract:
1. A cleaning apparatus comprising: air supply means for spraying high pressure air obliquely onto a cleaning surface to remove deposits on said cleaning surface by the high pressure air from an air nozzle disposed in the vicinity of said cleaning surface of a cleaning object to be cleaned; recovery means, including an air guide section disposed in front of an outlet port of said air nozzle, and an air cover section defining an air guide wall surface of an exhaust introducing passage for recovering substantially all of the air containing the removed deposits from said cleaning object by causing said air to exhaust, using a Coanda effect with said air guide wall surface, into said exhaust introducing passage along a wall surface of the air guide wall surface without exhausting the air and the removed deposit to surroundings; and further characterized as not requiring an external vacuum source for said exhaust introducing passage, ultrasound generating means for applying an ultrasonic wave to said high pressure air to be sprayed onto said cleaning object; and static electricity eliminating means, provided in the vicinity of said cleaning surface, for eliminating static electricity charged on said cleaning surface.