The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 31, 2006
Filed:
Jul. 22, 2005
Peng Liu, Beijing, CN;
Yang Wei, Beijing, CN;
Lei-mei Sheng, Beijing, CN;
Liang Liu, Beijing, CN;
Zhao-fu HU, Beijing, CN;
Cai-lin Guo, Beijing, CN;
Pi-jin Chen, Beijing, CN;
Shou-shan Fan, Beijing, CN;
Peng Liu, Beijing, CN;
Yang Wei, Beijing, CN;
Lei-Mei Sheng, Beijing, CN;
Liang Liu, Beijing, CN;
Zhao-Fu Hu, Beijing, CN;
Cai-Lin Guo, Beijing, CN;
Pi-Jin Chen, Beijing, CN;
Shou-Shan Fan, Beijing, CN;
Tsinghua University, Beijing, CN;
HON HAI Precision Industry Co., Ltd., Tu-Cheng, TW;
Abstract
A vacuum ionization gauge () includes a cathode (), an anode ring (), a shield electrode (), an ion educed electrode (), a reflector () and a collector (). The cathode is positioned corresponding to a first opening of the shield electrode, and the ion educed electrode is positioned corresponding to an opposite second opening of the shield electrode. An ion educed hole () is defined in a middle of the ion educed electrode. The reflector has a curving surface generally surrounding the second opening of the shield electrode. The collector is positioned at a center of the curving surface of the reflector and points toward the ion educed hole. The anode ring is positioned in the middle of the shield electrode. The vacuum ionization gauge is small volume and has low power consumption and improved sensitivity.