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:
Oct. 30, 2018

Filed:

Feb. 10, 2015
Applicant:

Enplas Corporation, Saitama, JP;

Inventor:

Akihiro Suzuki, Saitama, JP;

Assignee:

ENPLAS CORPORATION, Saitama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 29/01 (2006.01); B01D 29/05 (2006.01); B29C 45/26 (2006.01); B29L 31/14 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B01D 29/012 (2013.01); B01D 29/05 (2013.01); B29C 45/263 (2013.01); B29L 2031/14 (2013.01); B29L 2031/7374 (2013.01);
Abstract

A filter unit connecting a gate connection part to an outer cylinder includes a plurality of longitudinal ribs formed at regular intervals orthogonally to an X axis and parallel to a Y axis when a virtual plane orthogonal to a central axis of the gate connection part is assumed to be an X-Y plane. A plurality of transverse ribs is formed at regular intervals orthogonally to the longitudinal ribs and parallel to the X axis, and a plurality of rectangular openings is formed between the longitudinal ribs and the transverse ribs. By injecting molten resin into a cavity from a gate opened toward a cavity portion forming the gate connection part, the gate connection part, the outer cylinder, and the filter unit are formed integrally, the rib widths of the longitudinal ribs and the transverse ribs are made constant, and the shapes of the plurality of openings are made identical.


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