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:
May. 08, 2012
Filed:
Jul. 09, 2009
Applicants:
Hiroji Sato, Tokyo, JP;
Yasushi Ueki, Yokohama, JP;
Kensuke Ogose, Sagamihara, JP;
Inventors:
Assignee:
Nifco Inc., Yokohama-Shi, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 29/13 (2006.01); B01D 29/15 (2006.01); B01D 35/02 (2006.01); F02M 37/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a fuel filter in which is disposed in a fuel suction port of a fuel tank or in a fuel line and used to filter the fuel. At least one of filter materials constituting the fuel filter is made into a multifunctional filter material having a function of trapping dust of different particle diameters in stages, by differing the diameter of the pores in the filter material from the primary side to the secondary side of the filter material so that the size of the pores decreases toward the secondary side.