A detection system for a cutting torch for use in connection with a workpiece. The detection system has an electrode and a tip. A housing supporting the tip and the electrode provides relative movement therebetween and allows electrical contact between the tip and the electrode. A sensor circuit senses...http://www.google.es/patents/US5961855?utm_source=gb-gplus-sharePatente US5961855 - Low voltage electrical based parts-in-place (PIP) system for contact start torch
Low voltage electrical based parts-in-place (PIP) system for contact start torch
