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:
Jul. 15, 2003
Filed:
Dec. 29, 2000
Nagaichi Suga, Toyko, JP;
Suga Test Instruments Co., Ltd., Tokyo, JP;
Abstract
A weathering test apparatus having a vertically disposed long-arc type air-cooled metal halide lamp, a lamp housing having a cooling device for cooling a lower seal portion of the lamp, and a vertical specimen rack which rotates about the lamp. The lamp, in which halide metals and mercury and a rare gas are infused, includes a supporting member having at least one hollow protrusion positioned at the upper ½ to ⅔ portion of the radiation length of a radiation tube wall, and the radiation length of the lamp is 5 cm to 15 cm. The lamp housing comprises an air supply device disposed outside of the test chamber for supplying cooling air, a cooling device located between an inner optical filter and the lower seal portion of the lamp, and an air volume adjustment device. In this way, the temperature difference between the upper seal portion of the lamp and the lower seal portion of the lamp may be decreased.