A tamper resistant pin connection for use in a plasma arc cutting apparatus is provided that comprises a plurality of locking fingers within a hollow internal channel of a housing that secure a negative lead gas carrying pin within the housing. The pin comprises a first collar with a shoulder disposed thereon, and accordingly, the locking fingers engage the shoulder to secure the pin within the housing. The pin further comprises a second collar that blocks access to the locking fingers through a first portion of the hollow internal channel such that the locking fingers cannot be accessed to disengage the pin. Further, the pin is recessed within a second portion of the hollow internal channel to prevent further access to the pin for a tamper resistant pin connection.
申请公布号
WO03043134(A2)
申请公布日期
2003.05.22
申请号
WO2002US35916
申请日期
2002.11.07
申请人
THERMAL DYNAMICS CORPORATION;CONWAY, CHRISTOPHER, J.;ROGERS, FRED;MACKENZIE, DARRIN, H.;DEMERS,DOUGLASS, A.
发明人
CONWAY, CHRISTOPHER, J.;ROGERS, FRED;MACKENZIE, DARRIN, H.;DEMERS,DOUGLASS, A.