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. 24, 2007
Filed:
Jul. 13, 2004
Hisashi Mori, Yokohama, JP;
Tadashi Kuwahara, Yokohama, JP;
Yasushige Shigyo, Yokohama, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
A fluid cleaning filter of the present invention consists of a composite matrix composed of a pleated substrateconfigured into a pleated shape and an active carbon-containing layer, wherein the pleated substrateis made of polyurethane foamhaving a three-dimensional network skeletal structure, and the composite matrix is configured into a cylindrical shape. A filtering medium layermade of fibers is formed on the surface of the polyurethane foamfacing the active carbon-containing layer. The fibers of the filtering medium layer maybe electrostatically charged. The fluid cleaning filter exhibits good efficiency of dust collecting and deodorization even when a fluid flows through the filter at high rate.