Inventor
HEWETT ROGER W
US28 patents
Patents
28 patentsUSD504142SApr 19, 2005
Plasma arc torch tip
THERMAL DYNAMICS CORP418 citations99
USD499620SDec 14, 2004
Plasma arc torch tip with secondary holes
THERMAL DYNAMICS CORP412 citations99
US6903301B2Jun 7, 2005
Contact start plasma arc torch and method of initiating a pilot arc
THERMAL DYNAMICS CORP61 citations96
US6717096B2Apr 6, 2004
Dual mode plasma arc torch
THERMAL DYNAMICS CORP69 citations96
US6703581B2Mar 9, 2004
Contact start plasma torch
THERMAL DYNAMICS CORP61 citations96
US7202440B2Apr 10, 2007
Dual mode plasma arc torch
THERMAL DYNAMICS CORP33 citations92
US6936786B2Aug 30, 2005
Dual mode plasma arc torch
THERMAL DYNAMICS CORP32 citations92
US6914211B2Jul 5, 2005
Vented shield system for a plasma arc torch
THERMAL DYNAMICS CORP22 citations92
US6774336B2Aug 10, 2004
Tip gas distributor
THERMAL DYNAMICS CORP22 citations92
USD492709SJul 6, 2004
Plasma arc torch tip with swirl holes
THERMAL DYNAMICS CORP26 citations92
USD486368SFeb 10, 2004
Torch handle
THERMAL DYNAMICS CORP25 citations92
US6689983B2Feb 10, 2004
Torch handle gas control
THERMAL DYNAMICS CORP27 citations91
US6881921B2Apr 19, 2005
Torch with rotational start
THERMAL DYNAMICS CORP41 citations88
US5961855AOct 5, 1999
Low voltage electrical based parts-in-place (PIP) system for contact start torch
THERMAL DYNAMICS CORP40 citations87
US7429715B2Sep 30, 2008
Modular plasma arc torch
THERMAL DYNAMICS CORP15 citations84
US7326874B2Feb 5, 2008
Vented shield system for a plasma arc torch
THERMAL DYNAMICS CORP9 citations83
USD501632SFeb 8, 2005
Vented shield for a plasma arc torch
THERMAL DYNAMICS CORP14 citations82
US6670572B2Dec 30, 2003
Solenoid control and safety circuit system and method
THERMAL DYNAMICS CORP13 citations82
USD511663SNov 22, 2005
Retainer cap for a plasma arc torch
THERMAL DYNAMICS CORP12 citations81
USD511280SNov 8, 2005
Plasma arc torch tip
THERMAL DYNAMICS CORP6 citations74
USD493682SAug 3, 2004
Handle and trigger assembly
THERMAL DYNAMICS CORP7 citations74
USD489953SMay 18, 2004
Torch and lead assembly
THERMAL DYNAMICS CORP7 citations74
USD489235SMay 4, 2004
Torch head
THERMAL DYNAMICS CORP9 citations74
USD497373SOct 19, 2004
Gouging cap for a plasma arc torch
THERMAL DYNAMICS CORP8 citations73
US7582844B2Sep 1, 2009
Torch handle gas control
THERMAL DYNAMICS CORP2 citations61
US7145099B2Dec 5, 2006
Tip gas distributor
THERMAL DYNAMICS CORP4 citations58
USD496842SOct 5, 2004
Start cartridge
THERMAL DYNAMICS CORP1 citations52
USD493183SJul 20, 2004
Deflector cap for a plasma arc torch
THERMAL DYNAMICS CORP1 citations51