Patent ID: 7234195
Filing Date: 2007-06-26
Classification: B08B

Abstract:
1. A cleaning apparatus for cleaning a cleaning target using compressed air, said apparatus comprising: a compressor for producing compressed air; an air feeding passage extending between said compressor and said cleaning target, whereby the insides of said cleaning target is cleaned by feeding the compressed air to said cleaning target via said air feeding passage from said compressor while letting water flow into said cleaning target; an electromagnetic valve, which is provided midway in said air feeding passage and is opened or closed in such a way that expelling of the compressed air to said cleaning target from said compressor is permitted or restricted; a first timer, which sets an open time and close time of said electromagnetic valve in order to cyclically open and close said electromagnetic valve; a second timer, which sets a feed time for feeding the compressed air into the cleaning target whereby during said feed time, said electromagnetic valve repeats being opened and closed according to said open time and said close time set by said first timer; and a third timer, which sets an activation inhibition time for said second timer and permits an operation of said second timer after said activation inhibition time has elapsed since a point at which pressure of the compressed air from said compressor reached a predetermined upper limit.