There is provided automatic car wash equipment for positioning a forced air dryer including a blower towards vehicles being washed. The blower produces high velocity air and contains a nozzle for directing the high velocity air towards the vehicles. The blower and a positioning motor are mounted to a...http://www.google.co.uk/patents/US4995136?utm_source=gb-gplus-sharePatent US4995136 - Control system for automatic car wash blower