Chemical mixing apparatus, system and method

US20060080041A1Inactive Publication Date: 2006-04-13TRES ARK

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[0029] According to certain embodiments of the invention, there is provided a system and method of formulating a composition comprising at least two ingredients. The ingredients are admitted to a container to partially fill it. The quantities of the ingredient in the container are determined, and a ratio of a target quantity to the determined current quantity for at least one ingredient is calculated. The next quantity of that ingredient to be admitted to the admixture is calculated by multiplying the target quantity by the calculated ratio to determine a corrected quantity. The corrected quantity of the ingredient is admitted to the admixture, and a quantity of another ingredient is admitted to the admixture to adjust the proportion of ingredients to the target formulation. These steps may be repeated until a desired quantity of a predetermined composition is produced.

[0030] According to certain embodiments of the invention, there is provided a fractional fill mixing apparatus, sy...

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Abstract

There is disclosed a system and method of formulating a batch comprising at least two ingredients. An embodiment is disclosed wherein a feedforward algorithm can be used to control the target blend. Subsequently a feedback closed loop control loop algorithm is provided for a multivariant blend. Use of this approach allows for a continuously autoreplenished and controlled blend. Another enhancement disclosed is the ability to control via feedforward and feedback algorithms a fast responding control mode which allows for the elimination of a tank. This approach will allow for “one pass” blending with control. Feedback control can be provided via process indicators or through analytical or parametric methods. The controller implements an automated fault detection and correction system, thereby identifying necessary maintenance prior to failure. If failure does occur the signature recognition allows rapid analysis and correction thus maximizing tool availability.

Description

PRIORITY CLAIM [0001] This application hereby claims priority to, and incorporates herein by reference in its entirety, U.S. Provisional Patent Application Ser. No. 60 / 586,189 entitled “Chemical Mixing Apparatus, System and Method”, filed Jul. 8, 2004; U.S. Provisional Patent Application Ser. No. 60 / 586,968 entitled “Point of Use Chemistry Blending Control”; U.S. patent application Ser. No. 10 / 877,705 entitled “Chemical Mixing Apparatus, System and Method”, filed Jul. 9, 2004; and PCT Patent Application No. PCT / US04 / 41053 filed Dec. 9, 2004.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates in general to an apparatus, system and method for mixing chemicals. It more particularly relates to such an apparatus, system and method for mixing ingredients in a precise manner in accordance with a given recipe. [0004] 2. Description of the Relevant Art [0005] This section describes the background of the disclosed embodiment of the present inventi...

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Application Information

Patent Timeline

13 Apr 2006

Publication

US20060080041A1

IPC: G06F19/00

CPC: B01F13/1055; B01F15/00207; G05D11/133; G05D11/139; H01L21/67253; B01F33/84; B01F35/213

Inventors: ANDERSON, GARY R.; SIMPSON, MICHAEL B.