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:
Dec. 21, 2010
Filed:
Sep. 19, 2006
Zhiqiang Chen, Beijing, CN;
Yuanjing LI, Beijing, CN;
Yinong Liu, Beijing, CN;
Haifeng HU, Beijing, CN;
Wanlong Wu, Beijing, CN;
Yulan LI, Beijing, CN;
Xilei Luo, Beijing, CN;
LI Zhang, Beijing, CN;
Ziran Zhao, Beijing, CN;
Bin Sang, Beijing, CN;
Hailin Wang, Beijing, CN;
Zhiqiang Chen, Beijing, CN;
Yuanjing Li, Beijing, CN;
Yinong Liu, Beijing, CN;
Haifeng Hu, Beijing, CN;
Wanlong Wu, Beijing, CN;
Yulan Li, Beijing, CN;
Xilei Luo, Beijing, CN;
Li Zhang, Beijing, CN;
Ziran Zhao, Beijing, CN;
Bin Sang, Beijing, CN;
Hailin Wang, Beijing, CN;
Nuctech Company Limited, Beijing, CN;
Tsinghua University, Beijing, CN;
Abstract
A radiation inspection system includes a shielding door device for a radiation inspection system, comprising a door body, two guides located on two opposite sides of the door body, a rack, a gear and a motor. The two guides are fixed on an upper surface of a frame and the door body is movably connected to the two guides via bearings. The rack is fixed on a bottom of the door body and meshed with the gear. The gear is coupled with a shaft of the motor fixed on a lower surface of the frame. This configuration is advantageous in automatic and complete shielding of the radiation inspection system without interference. In addition the shielding door can be controlled intelligently, so that accidental radiation leakage can be prevented.