Electricity: measuring and testing – Using ionization effects – For monitoring pressure
Reexamination Certificate
2007-11-13
2007-11-13
Deb, Anjan (Department: 2858)
Electricity: measuring and testing
Using ionization effects
For monitoring pressure
C324S464000
Reexamination Certificate
active
11354278
ABSTRACT:
An ionization gauge for isolating an electron source from gas molecules includes the electron source for generating electrons, a collector electrode for collecting ions formed by the impact between the electrons and gas molecules, and an electron window which isolates the electron source from the gas molecules. The ionization gauge can have an anode which defines an anode volume and decelerates and retains the electrons in a region of the anode. The ionization gauge can have a plurality of electron sources and/or collector electrodes. The collector electrode(s) are be located within the anode volume. The ionization gauge can be a Bayard-Alpert type that measures pressure.
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Author unknown, “Introduction to Bayard-Alpert Style Ionization Gauges,” Granville-Phillips, 1999, XP-002375869, retrieved from the Internet: http://www.helixtechnology.com.cn/pdfs/GP/5—bagauges/Intro—to—BA—Gauges.pdf.
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Arnold Paul C.
Rutt Paul M.
Brooks Automation Inc.
Deb Anjan
Hamilton Brook Smith & Reynolds P.C.
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