Patent ID: 8633414
Filing Date: 2014-01-21
Classification: H05H

Abstract:
1. A plasma torch, comprising: a torch body; a nozzle; a cavity defined within the main torch body; first and second fluid passages in communication with the cavity, the first fluid passage communicating with a first region of the cavity, and the second fluid passage communicating with a second region of the cavity; a connecting pathway for conducting fluid between the first and second regions of the cavity; the electrode assembly and the nozzle being movable in relation to each other between a starting position and an operating position, the electrode assembly contacting the nozzle in the starting position, and the electrode assembly not contacting the nozzle in the operating position; and wherein when fluid flows in a first direction from the first fluid passage into the first region, then through the connecting pathway into the second region, and then out through the second fluid passage, the electrode assembly and the nozzle are configured in the starting position; wherein when fluid flows in an opposite second direction from the second fluid passage into the second region, then through the connecting pathway into the first region, and then out through the first fluid passage, the electrode assembly and the nozzle are configured in the operating position.