A dispensed bead (10) of material is disposed between a sensor pair (14) for monitoring the bead. The sensor pair (14) transmits a beam of light towards the bead of material. A signal is generated which corresponded to the amount of light received. By utilizing this signal, gaps or other discontinuities...http://www.google.es/patents/US5540946?utm_source=gb-gplus-sharePatente US5540946 - Method of applying primers onto glass element of vehicles
Method of applying primers onto glass element of vehicles