Inventor
KARR JR MICHAEL A
US12 patents
⚠️ This page may combine multiple inventors who share the name “KARR JR MICHAEL A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GRAY TOOL CO
6 patentsUS4612983ASep 23, 1986
Shear type gate valve
GRAY TOOL CO61 citations95
US4452462AJun 5, 1984
Temperature resistant joint packing with E-shaped spring seal
GRAY TOOL CO73 citations95
US4569503AFeb 11, 1986
Valve with remote and manual actuation means
GRAY TOOL CO46 citations92
US4570659AFeb 18, 1986
Fire resistant valve
GRAY TOOL CO20 citations81
US4643390AFeb 17, 1987
Fail-safe valve actuator
GRAY TOOL CO9 citations69
US4534235AAug 13, 1985
Rotary stepper actuator
GRAY TOOL CO11 citations65