Pneumatic Scale Corporation

Gerald M Dee

Frank A Catrambone

A weighing system is disclosed which operates in conjunction with a scale that has a trigger mechanism for terminating the flow of material into the scale's bucket. This system automatically periodically revises a tare signal stored in a latch circuit for combination with a weight signal to produce a net weight signal. The tare signal provides a measure of the residue stuck in the scale bucket. In an additional embodiment of the invention, a programmable controller is used as the means for periodically resetting the tare signal and is used to evaluate the final weight data to determine the average weight and the standard deviation of the weights. These determinations are used by the controller in combination with a predetermined weight to arrive at a computer setpoint signal for adjustment of the triggering of the flow termination so that the final weights will most closely approximate the predetermined weight. Further disclosed is a volume sensor for detecting whether the weighed material fills at least a minimum volume.

Electronic control system for a weighing scale

A device for reducing errors in weighing systems caused by extraneous noise and/or vibration.

Growing community of inventors

Milford, MA, United States of America

Gerald M Dee