Mcnab, Incorporated

Joseph M Diamond

Horace A Teass, Jr

Patrick F McKernan

Joseph T Kuzmik

A multichannel salinity meter combines a semi-squarewave signal with a peak actuated detector to develop a salinity signal proportional to conductivity. Each salinity channel includes a separate presettable alarm level and alarm indicators provided by a blinking lamp at the salinity module, local and remote bells and a remote lamp. a bell cutout switch is provided to optionally silence the local and remote bell indicators. Each salinity channel provides a dump signal which may be used to control a dump valve whereby any alarm condition causes dumping of the water in the alarm channel. A test signal available to each salinity channel provides the instrument with a test mode.

Multichannel salinity meter

An electrical circuit for shaft torque measuring systems of the type having a transducer producing an electrical signal representing shaft torque and a brush and slip ring assembly providing an output connection for the electrical shaft torque signal includes an operational amplifier having the electrical shaft torque signal connected across an inverting input terminal and an output terminal with a capacitor providing negative feedback between the inverting input and output terminal and a resistor connected in series with the inverting input terminal to form with the capacitor a low pass filter such that resistance variations and circuit interruptions in the electrical shaft torque signal producing circuit do not adversely effect the output signal.

Shaft torque measuring system

A conductivity cell for measuring the conductivity of a liquid comprising a pair of spaced apart electrodes insulated from each other. The proper spacing of the electrodes is provided by a washer formed of insulating material and it is strong, rigid and highly stable chemically and mechanically and is substantially unaffected by wide temperature variations. A single electric conducting element extends through the cell and at one end is electrically fixed to one of the electrodes. The single electric conducting element is adjustable to maintain the two electrodes and insulating washer in proper position. A protective and insulating shield is provided for detachable connection to the conductivity cell to protect the electrodes.

Growing community of inventors

Brooklyn, NY, United States of America

Joseph M Diamond