Inventor

BURT RALPH E

US2 patents

Patents

2 patents

US5880480AMar 9, 1999

Optical liquid level sensor including built-in test circuitry

SIMMONDS PRECISION PRODUCTS58 citations90

US5761955AJun 9, 1998

Removable ultrasonic transducer with integral electrical disconnect

SIMMONDS PRECISION PRODUCTS9 citations68