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.

Date of Patent:
May. 31, 2005

Filed:

Jul. 22, 2002
Applicants:

Masaji Mori, Hyogo-ken, JP;

Juntaro Shimizu, Hyogo-ken, JP;

Kazuki Monaka, Hyogo-ken, JP;

Takashi Shimomura, Hyogo-ken, JP;

Kimio Nakayama, Ibaraki-ken, JP;

Toshifumi Naito, Hyogo-ken, JP;

Inventors:

Masaji Mori, Hyogo-ken, JP;

Juntaro Shimizu, Hyogo-ken, JP;

Kazuki Monaka, Hyogo-ken, JP;

Takashi Shimomura, Hyogo-ken, JP;

Kimio Nakayama, Ibaraki-ken, JP;

Toshifumi Naito, Hyogo-ken, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G21C001/04 ;
U.S. Cl.
CPC ...
Abstract

A foreign matter filter provided between a DFBN and a lower grid has two adjacent thin straps assembled into a lattice. The straps are equipped on the front and back sides with axially continuous protrusions.


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