Inventor

JOHNSTON FRANK W

GB3 patents

Patents

3 patents

US5564461AOct 15, 1996

Assembly for connecting an actuator to a rotary valve

BRAY INT INC81 citations90

US5305781AApr 26, 1994

Valve positioning monitoring apparatus

BRAY INT INC27 citations89

US5178187AJan 12, 1993

Valve position indicating apparatus

BRAY INT INC25 citations89