Inventor
LEWIS JOHN C
9 patents
⚠️ This page may combine multiple inventors who share the name “LEWIS JOHN C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PARK OHIO INDUSTRIES INC
7 patentsUS4420667ADec 13, 1983
Induction heating method and apparatus for elongated workpieces
PARK OHIO INDUSTRIES INC29 citations91
US4114010ASep 12, 1978
Test circuit and method for matching an induction load to a solid state power supply
PARK OHIO INDUSTRIES INC32 citations91
US4531036AJul 23, 1985
Apparatus and method for inductively hardening small bores
PARK OHIO INDUSTRIES INC13 citations72
US4501942AFeb 26, 1985
Method and apparatus for uniform induction heating of an elongated workpiece
PARK OHIO INDUSTRIES INC13 citations72
US4482793ANov 13, 1984
Apparatus for simultaneously heating a plurality of elongated workpieces
PARK OHIO INDUSTRIES INC13 citations72
US4418259ANov 29, 1983
Method and apparatus of uniform induction heating of an elongated workpiece
PARK OHIO INDUSTRIES INC16 citations72
US4307278ADec 22, 1981
Control device for parallel induction heating coils
PARK OHIO INDUSTRIES INC11 citations72