Patents by Inventor Qifang Han

Qifang Han has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7082186
    Abstract: A container inspection equipment with cobalt-60 ?-ray source and cesium iodide or cadmium tungstate detector includes a cobalt-60 ?-ray source, a cask, a front collimator, a rear collimator, a cesium iodide or cadmium tungstate detector, signal and image processing systems, container trailer system, and automatic control system. The cask of the cobalt-60 ?-ray source, the beam shutter, and the front collimator are fixed on the same chassis to form an integration and placed in the source room. The rear collimator, cesium iodide or cadmium tungstate array detector and the radiation catcher are fixed on the same chassis to form an integration and placed in the detector room. A container inspection tunnel is formed between the source room and the detector room. The equipment is mainly used for inspecting smuggling goods and contrabands etc., in large containers, container trucks, train carriage and air containers.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: July 25, 2006
    Assignee: Beijing Isotope Nuclear Electronic Machine Co. Ltd.
    Inventors: Jinggi Zhao, Huimin Chen, Qifang Han, Zhicheng Huang, Li Chen, Yongging Li, Bo Meng, Hancheng Sun, Jinhan Luo, Yishan Wang, Hong Li, Chuan Jin, Guoping Dong, Xiaoyuan Huang, Mingwen Dong, Junqing Liu, Yonghong Yang, Dong Li, Xiaodong Yao, Quan Zhou
  • Publication number: 20040179647
    Abstract: A container inspection equipment with cobalt-60 &ggr;-ray source and cesium iodide or cadmium tungstate detector includes a cobalt-60 &ggr;-ray source, a cask, a front collimator, a rear collimator, a cesium iodide or cadmium tungstate detector, signal and image processing systems, container trailer system, and automatic control system. The cask of the cobalt-60 &ggr;-ray source, the beam shutter, and the front collimator are fixed on the same chassis to form an integration and placed in the source room. The rear collimator, cesium iodide or cadmium tungstate array detector and the radiation catcher are fixed on the same chassis to form an integration and placed in the detector room. A container inspection tunnel is formed between the source room and the detector room. The equipment is mainly used for inspecting smuggling goods and contrabands etc., in large containers, container trucks, train carriage and air containers.
    Type: Application
    Filed: March 11, 2004
    Publication date: September 16, 2004
    Inventors: Jinggi Zhao, Huimin Chen, Qifang Han, Zhicheng Huang, Li Chen, Yongging Li, Bo Meng, Hancheng Sun, Jinhan Luo, Yishan Wang, Hong Li, Chuan Jin, Guoping Dong, Xiaoyuan Huang, Mingwen Dong, Junqing Liu, Yonghong Yang, Dong Li, Xiaodong Yao, Quan Zhou