1
Charles J Call, Eric Hanczyc, Andrew Kamholz: Robust system for screening mail for biological agents. MesoSystems Technology, Ronald M Anderson, May 3, 2005: US06887710 (34 worldwide citation)

Items of mail are rapidly processed in a mail sampling system to determine if the mail is contaminated with a chemical or biological agent. The mail sampling system maintains a negative pressure in a containment chamber and includes a triggering sampler that makes a threshold determination regarding ...


2
Christopher L Moler, Trent Wetherbee, Patrick Call, Charles J Call, Vanessa M Kenning: Biological individual sampler. MesoSystems Technology, Ronald M Anderson, May 4, 2004: US06729196 (33 worldwide citation)

A portable sampling unit capable of separating particulates, including biological organisms, from gaseous fluids such as air. A combined particle impact collector and fan is used to both move fluid through the sampling unit and to collect particulates. In one embodiment, the combined particle impact ...


3
Donald J Hammerstrom, Joseph G Birmingham, James S Millar: Decontamination of fluids or objects contaminated with chemical or biological agents using a distributed plasma reactor. MesoSystems Technology, Ronald M Anderson, September 24, 2002: US06455014 (33 worldwide citation)

Apparatus for using a non-thermal plasma or corona discharge generated at multiple points and distributed to decontaminate surfaces and objects contaminated with chemical or biological agents. The corona discharge can be generated using very short high voltage pulses (pulsed discharge) produced by a ...


4
Charles J Call, Mike Powell, Seung Ho Hong, Ezra Merrill, Alireza Shekarriz, Patrick Call: Method and apparatus for air purification. MesoSystems Technology, Ronald M Anderson, December 3, 2002: US06488900 (31 worldwide citation)

A method and apparatus for purifying air to deactivate toxic chemical and biological species such as Sarin, mustard gas, phosgene, cyanogen chloride, Anthrax spores,


5
Joseph G Birmingham, Vanessa M Kenning, Patrick T Call, Charles J Call: Micromachined impactor pillars. MesoSystems Technology, Ronald M Anderson, August 29, 2000: US06110247 (30 worldwide citation)

A plurality of micropillars (2) arranged in a plurality of rows (4, 6, 8) are provided. When a particle-laden fluid stream is caused to flow through the micropillars, at least a portion of the particles impacts and becomes deposited on the micropillars' surfaces while the fluid stream is deflected a ...


6
Patrick T Call, Vanessa M Kenning, Charles Call, Joseph G Birmingham, Donald J Hammerstrom: Impact particulate collector using a rotary impeller for collecting particulates and moving a fluid. MesoSystems Technology, Ronald M Anderson, July 31, 2001: US06267016 (30 worldwide citation)

A particle collector includes a combined impact collector and fan, which is usable for both drawing air or other gaseous fluid in which particulates are entrained into a cavity, and then separating the particulates from the gaseous fluid by providing a rotating surface that impacts the particulates. ...


7
Joseph G Birmingham, Patrick T Call, Vanessa M Kenning, Alireza Shekarriz, Charles J Call: Micromachined virtual impactor. MesoSystems Technology, Ronald M Anderson, May 16, 2000: US06062392 (23 worldwide citation)

A separation plate (10) includes a first surface and an opposing second surface. Plural pairs of a nozzle (14) and a virtual impactor (16) are provided on the first surface. Each nozzle tapers from an inlet end (14a) to an outlet end (14b). Each virtual impactor comprises a pair of generally fin-sha ...


8
Donald J Hammerstrom, Joseph G Birmingham, James S Millar: Decontamination of fluids or objects contaminated with chemical or biological agents using a distributed plasma reactor. MesoSystems Technology, Ronald M Anderson, May 2, 2006: US07037468 (20 worldwide citation)

Apparatus and method for using a non-thermal plasma or corona discharge generated at multiple points and distributed to decontaminate surfaces and objects contaminated with chemical or biological agents. The corona discharge can be generated using very short high voltage pulses. The pulsed corona di ...


9
Charles Call, James Millar: Coating to enhance the efficiency of a particle impact collector. MesoSystems Technology, Roland M Anderson, April 2, 2002: US06363800 (20 worldwide citation)

Apparatus and a method for separating particulates from a fluid in which the particulates are entrained. An impact collection surface is coated with a material that improves the efficiency with which the particulates are separated from the fluid and collected. In one embodiment, the coating retains ...


10
Charles J Call, Patrick T Call, Vanessa M Kenning, Andrew Kamholz: Method for surface deposition of concentrated airborne particles. MesoSystems Technology, Ronald M Anderson, February 24, 2004: US06695146 (20 worldwide citation)

The present invention employs a virtual impactor to separate a flow of fluid into a major flow and a minor flow, such that the minor flow contains a higher concentration of particulates of a desired size. The minor flow is directed toward an archival surface, causing the particulates to impact again ...



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