Inventor

GREBE JR JOHN C

8 patents

Patents

8 patents

US4309909AJan 12, 1982

Crystal stabilized voltage to frequency converter with digital calibration for flowmeters

EMERSON ELECTRIC CO28 citations81

US4262542AApr 21, 1981

Family of magnetic flowmeters

EMERSON ELECTRIC CO22 citations81

US4306461ADec 22, 1981

Meter incorporating a digital fullscale setting device

EMERSON ELECTRIC CO11 citations72

US4287774ASep 8, 1981

Magnetic flowmeter with ultrasonically cleaned electrodes

EMERSON ELECTRIC CO9 citations72

US4262543AApr 21, 1981

Magnetic flowmeter having multiple stage amplifier with automatic zeroing

EMERSON ELECTRIC CO10 citations72

US4325261AApr 20, 1982

Pulsed DC constant current magnetic flowmeter

EMERSON ELECTRIC CO17 citations71

US4287773ASep 8, 1981

Bidirectional magnetic flowmeter

EMERSON ELECTRIC CO4 citations61

US4283958AAug 18, 1981

Magnetic flowmeter having automatic ranging

EMERSON ELECTRIC CO5 citations61