Inventor
HOFFMAN STEPHEN A
US6 patents
Patents
6 patentsUS4502179AMar 5, 1985
Apparatus for collecting process generated fume and/or slag
ARCAIR CO8 citations71
US4426566AJan 17, 1984
Apparatus for collecting process generated fume and/or slag
ARCAIR CO7 citations71
US4388514AJun 14, 1983
Method for collecting process generated fume and/or slag
ARCAIR CO10 citations71
US4260867AApr 7, 1981
Electrode drive and nozzle system for automatic air-carbon arc cutting and gouging torch
ARCAIR CO9 citations70
USD258193SFeb 10, 1981
Air-carbon arc cutting and gouging torch
ARCAIR CO2 citations59
US4218605AAug 19, 1980
Air-carbon arc cutting and gouging torch
ARCAIR CO5 citations58