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:
Sep. 16, 2008

Filed:

Jun. 27, 2005
Applicant:

Hiroki Ishii, Daito, JP;

Inventor:

Hiroki Ishii, Daito, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 3/24 (2006.01); A47B 81/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A speaker grille has a grille base, a plurality of front through holes formed on a front side of the grille base, and a plurality of back through holes formed on a back side of the grille base, each of the plurality of front through holes communicating with one of the plurality of back through holes at its inner end. The front through holes are smaller than the back through holes at the inner ends. Such speaker grille is formed by injection-molding a resin using a mold having a stationary half provided with a plurality of stationary side mold pins, and a movable half provided with a plurality of movable side mold pins. The stationary half is designed to form a front side of the speaker grille. The stationary mold pins have distal end faces that are smaller than distal ends faces of the movable mold pins.


Find Patent Forward Citations

Loading…