Fluent material handling – with receiver or receiver coacting mea – Processes – Plural materials
Patent
1982-02-10
1984-09-04
Marcus, Stephen
Fluent material handling, with receiver or receiver coacting mea
Processes
Plural materials
141 83, 177 70, 364502, G01G 1928
Patent
active
044691467
ABSTRACT:
This invention is an apparatus for making solutions of chemicals of specified molarity, normality, molality or weight percentage corrected, as necessary, for water of hydration in the solute. By means of an input-output device using a programmed instruction format, the desired chemical, the type of solution wanted, its concentration, and its volume are specified. An electronic balance with TARE capability repeatedly produces an output signal of the weight W of solute plus any solvent within a container in which the solution is to be mixed less the weight of the container. Apparatus are provided for calculating and storing the weight TW which is the total weight of the solute plus solvent which will result in a solution of the type and concentration of solution specified for the amount of solute placed on the balance. If the total volume of solution of the desired type and concentration of solution is specified, apparatus are provided for determining the amount of solute required. Means are provided for controlling the flow of solvent between a source and the container for causing the flow of solvent into the container when TW-W is greater than zero and to stop the flow of solvent into the container when TW-W=0. Apparatus are provided to prevent overfilling the container.
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Campbell Jeptha E.
Gilchrist James E.
Marcus Stephen
Spiral Systems Inc.
Thronson Mark
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