Disclosed is an automatic icemaker has a rotatably supported ice making portion having first and second ice making trays arranged in a back-to-back manner, a motor for rotating the ice making portion, a first and a second temperature detecting sensors for detecting the temperature of the first and second...http://www.google.com.hk/patents/US7665316?utm_source=gb-gplus-share專利 US7665316 - Automatic icemaker