Inventor

KEEN RONALD W

US4 patents

⚠️ This page may combine multiple inventors who share the name “KEEN RONALD W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

EIMCO COAL MACHINERY INC

1 patent

US5507565AApr 16, 1996

Method and apparatus for suppressing dust and frictional ignition on a continuous mining machine

EIMCO COAL MACHINERY INC30 citations89

NAT MINE SERVICE CO

1 patent

US4281879AAug 4, 1981

Stabilizing assembly for a mining machine

NAT MINE SERVICE CO12 citations71

NAT MINE SERVICE

1 patent

US4165803AAug 28, 1979

Material gathering device

NAT MINE SERVICE4 citations56

EIMCO LLC

1 patent

US6036276AMar 14, 2000

Conveyor lift and service shoe assembly and method of moving

EIMCO LLC3 citations51