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. 12, 2006
Filed:
Oct. 17, 2005
John Lin, Jhudong Township, TW;
Chau Min Chen, Hsinchu, TW;
Chun Miing Hsu, Hsinchu, TW;
Hui Mei Tai, Hsinchu, TW;
Hsin Yi Ko, Hsinchu, TW;
Chun Jen Lin, Hsinchu, TW;
Chuen Yuann Liou, Hsinchu, TW;
John Lin, Jhudong Township, TW;
Chau Min Chen, Hsinchu, TW;
Chun Miing Hsu, Hsinchu, TW;
Hui Mei Tai, Hsinchu, TW;
Hsin Yi Ko, Hsinchu, TW;
Chun Jen Lin, Hsinchu, TW;
Chuen Yuann Liou, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu County, TW;
Abstract
The present invention discloses a portable blackbody furnace comprising a metallic body, a cylindrical cavity with a tapered end in the metallic body, a shielding plate positioned at an open end of the cylindrical cavity, at least a first heaters positioned in the shielding plate, a plurality of second heaters positioned around the metallic body, and a plurality of thermometers positioned in the metallic body. Preferably, the heat capacity of the metallic body is larger than 200 Joules/K, and has radial thickness larger than 5 mm. There are grooves formed on the outer wall of the metallic body, and the second heaters are heating wires embedded inside the grooves. In addition, the flow direction of the current between two adjacent heating wires is opposite to eliminate the magnetic field generated from the current flow.