The invention relates to a blow torch (6) for a cutting process, in particular a steam cutting process, comprising a control device (3), a liquid supply system, in particular a container (5) for a liquid (8), and a power source (2), the blow torch (6) being connected via lines (9, 10) to the power source...http://www.google.com.tw/patents/US6326581?utm_source=gb-gplus-share專利 US6326581 - Torch for cutting processes
