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Apparatus and method for minimizing the generation of particles in ultrapure liquids

a technology of ultrapure liquids and particle generation, applied in the direction of liquid transfer devices, liquid handling, packaging goods types, etc., can solve the problems of product deficient or even useless for its intended purpose, and achieve the effect of reducing particle generation, less particle generation, and reducing particle concentration in liquid

Inactive Publication Date: 2007-05-24
KELLY WAYNE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention relates to systems and methods for filling containers with ultra pure liquids while minimizing the generation of particles. The invention addresses the issue of particle generation caused by the presence of an air-liquid interface in the container. The first method involves using a bottom fill method, which reduces splashing, turbulence, and entrainment of air, resulting in a filled container with no headspace air and minimal particles. The second method involves filling containers by collapsing the liner and removing the air-liquid interface, resulting in a container with no headspace air and no particles. Other methods include using a nozzle to fill or clean the container, reducing the overspill distance in recirculation baths, and utilizing a smart siphon to stop siphoning action before air entrainment. Additionally, ensuring that any head space air is removed from the container before shipping reduces particle concentration."

Problems solved by technology

This can in turn render the product deficient or even useless for its intended purpose.

Method used

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  • Apparatus and method for minimizing the generation of particles in ultrapure liquids
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  • Apparatus and method for minimizing the generation of particles in ultrapure liquids

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example 1

[0134] From the same lot of Oxide Slurry OS-70KL material (ATMI Materials Lifecycle Solutions, Danbury, Conn.) several different sample vials were made up, containing the OS-70KL material, to simulate behavior of the liquid in a bag in a drum container of the type generally shown and described herein and in U.S. patent application Publication No. US2003 / 0004608 A1 and U.S. Pat. No. 6,698,619, incorporated herein by reference in their entirety, with varying headspace in the interior volume of the liner.

[0135] The sample vials were made up with the following differing headspace levels: 0%, 2%, 5% and 10%. Each of the sample vials was vigorously shaken for one minute by hand, and the liquid in the vial was then subjected to analysis in an Accusizer 780 Single Particle Optical Sizer, a size range particle counter commercially available from Sci-Tec Inc. (Santa Barbara, Calif.), which obtains particle counts in particle size ranges that can then be “binned” algorithmically into broad pa...

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Abstract

A system and method of reducing particle generation in packaging containers used to transport ultra pure liquids. Particle generation in the containers is reduced by reducing the air-liquid interface present during filling, transport, and dispensing of the liquid.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This is a continuation of U.S. patent application Ser. No. 10 / 139,185, filed on May 3, 2002 in the name of KELLY, Wayne et al. and entitled, “APPARATUS AND METHOD FOR MINIMIZING THE GENERATION OF PARTICLES IN ULTRAPURE LIQUIDS.” The priority of U.S. patent application Ser. No. 10 / 139,185 is claimed under the provisions of 35 USC §120. [0002] The disclosures of the following patent applications are hereby incorporated herein by reference in their respective entireties: U.S. Pat. No. 6,698,619 of Richard Wertenberger, entitled “BAG-IN-DRUM FLUID STORAGE AND DISPENSING CONTAINER HAVING RECTANGULAR PARALLELEPIPED CONFORMATION, AND INTEGRATED FLUID SUPPLY SYSTEM UTILIZING SAME”; and U.S. patent application Publication No. US2003 / 0004608 A1 of Kevin T. O'Dougherty and Robert E. Andrews, entitled “LIQUID HANDLING SYSTEM WITH ELECTRONIC INFORMATION STORAGE.”BACKGROUND OF THE INVENTION [0003] The present invention relates to minimizing the gener...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B65B1/04B65B3/22B67D7/02
CPCB65B3/04B67D7/0261B65B31/044B65B3/22B05B15/30B67C3/222B67C3/28
Inventor KELLY, WAYNECHILCOTE, DENNIS
Owner KELLY WAYNE
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