a urinal flush reliability improvement
申请(专利)号： FI19990001056
专利号： FI991056A 主分类号： 7E03DA 申请权利人： ORAS OY, 公开国代码： FI 优先权国家： FI 摘 要：
This invention relates to a method for maintaining the reliable operation of a sensor detecting a need for flushing a urinal (10). According to the invention, urine stone and/or other such dirt adhered over the area of the flushing-need
detecting sensor within the liquid basin of the urinal (10) is removed by means of a vibrator operating over this particular area. In a preferred case, the sensor comprises for example a piezoelectric crystal. In one embodiment of the
invention, the sensor is adapted to vibrate by means of a piezoelectric crystal. In a second preferred embodiment, said piezoelectric crystal is set in the
immediate vicinity of the sensor, thereby removing the dirt. <IMAGE> 主权项：
申请日： 1999-05-07 公开公告日： 2000-11-08
分类号： 7E03DA 发明设计人： TOIVONEN,ARI 申请国代码： FI
优先权： 19990507 FI 991056
摘 要 附 图：
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说 明 书
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a urinal flush reliability improvement
