Title:
PLASMA ARC COLLIMATOR DESIGN AND CONSTRUCTION
Document Type and Number:
WIPO Patent Application WO2006041980
Kind Code:
B1
Abstract:
An improved collimator (102) for a plasma arc torch (12) consists of an annular holder member (104) and an insert member (118). The insert member (118) includes a tubular stem portion (120) ending in an integrally formed, radially extending face plate (122). When the stem portion (120) is fitted into the central bore (108) of the holder member (104) with a predetermined clearance fit therebetween, a cooling water passage (124) is created. The improved collimator is characterized by the absence of any welds between the holder member (104) and the insert member (118) that would be exposed to conductive gases given off during use of the plasma arc torch and a lesser resistance to cooling water flow than prior art collimator designs.
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Inventors:
HANUS GARY J
BERGSRUD DAVID P
HICKEL STEVEN D
BERGSRUD DAVID P
HICKEL STEVEN D
Application Number:
PCT/US2005/035927
Publication Date:
May 31, 2007
Filing Date:
October 06, 2005
Export Citation:
Assignee:
PHOENIX SOLUTIONS CO (US)
HANUS GARY J
BERGSRUD DAVID P
HICKEL STEVEN D
HANUS GARY J
BERGSRUD DAVID P
HICKEL STEVEN D
International Classes:
B23K10/00; B23K9/00
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