Inventor's Corner
05/01/2001
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Cleanroom air filter system with self-supporting filter units
In this cleanroom ceiling design the individual filter units are suspended solely by unshared suspension assemblies. Therefore, they are self-supporting and readily installable and removable individually. Additionally, they are free of grids and other multiple-unit supporting expedients.
Patent number: 6,183,528
Date granted: February 6, 2001
Inventors: Peter Jeanseau and Richard Braman (Anaheim, CA)
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Ultraclean surface treatment device
The invention provides a porous polymeric device, such as an ultraclean brush. The device includes an elongated foam member, which has an outer surface for removing residual particles from the surface of a substrate. Among other features, the elongated foam member includes a polyvinyl alcohol-bearing compound. The elongated foam member has a calcium ion impurity concentration of less than about 1 part per million.
Patent number: 6, 182,323
Date granted: February 6, 2001
Inventor: Kristan G. Bahten, Rippey Corp.
(El Dorado Hills, CA)
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Filter package
This method of forming a filter package includes disposing a filter and a liquid in a container. The filter is immersed in the liquid and both the liquid and the filter are sanitized while in the container. After sanitizing, the container can be hermetically sealed to enclose the sanitized liquid and filter. The container can be vented during sanitizing to enable the liquid vapor to exit and to prevent pressure from building up in the container. The container can be either rigid or flexible.
Patent number: 6, 174,439
Date granted: January 16, 2001
Inventors: Scott D. Hopkins, Daniel W. Spencer and Joseph A. Peri, Pall Corp. (East Hills, NY)
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Paint spray booth controller
This apparatus includes a number of paint sprayers installed in a booth. Each paint sprayer includes a paint spray head, which is mounted so that it can pivot on the end of a movable paint spray arm. The arm and head are movable on multiple axes by servo motors, which are controlled by servo drives mounted on or beside the paint sprayer. The spray of the head is controlled by a number of proportional solenoid valves mounted on the paint sprayer. The movement and spray of the paint sprayers are controlled by a computer that has an interface to an optical fiber. The optical fiber connects to computer to the servo drives in series in a Token Ring network.
Patent number: 6, 177,139
Date granted: January 23, 2001
Inventor: Thierry Rouvelin, Behr Systems
(Rochester Hills, MI)
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Mobile hospital system
The system can be moved by tractors, helicopters, railway locomotives or sea vessels. A number of container wagons operate as part of a hospital and are moved to set up a system by connecting the wagons on site. Some of the wagons are supplied with water, power and fuel oil. With this arrangement, a comprehensive hospital system can be set up on site in a region hit by a natural disaster.
Patent number: 6, 179,358
Date granted: January 30, 2001
Inventors: Kensuke Hirayama & Nobuhiko Hirota (Yamamato, Japan)
Surface treatment
This method for treating a substrate involves contacting a surface of the substrate with a pressurized fluid comprising carbon dioxide and a surface-treament component. The surface-treatment component contacts the surface so that it lowers the surface tension of the surface of the substrate and treats the substrate. The contacting step is carried out preferably by immersion, the fluid is preferably a liquid or supercritical fluid, the substrate is preferably a metal or fabric substrate, and the surface-treatment component is preferably a fluoroacrylate polymer.
Patent number: 6,165,560
Date granted: December 26, 2000
Inventors: James B. McClain, Timothy J. Romack and James P. DeYoung, MiCell Technologies (Raleigh, NC)
Send your inventions
Information on the patents highlighted was obtained through the U.S. Patent and Trademark Office. Inventors who have been granted patents within the last six months for new cleanroom and contamination technology are encouraged to submit them to CleanRooms magazine for publication. Send a brief description of the invention along with a detailed drawing to Mark A. DeSorbo, associate editor, CleanRooms, 98 Spit Brook Road, Nashua, NH 03062, or e-mail at [email protected].