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. 08, 2013

Filed:

Dec. 20, 2010
Applicants:

Yasuyuki Mizukusa, Fuchu, JP;

Mitsuaki Kitamura, Fuchu, JP;

Inventors:

Yasuyuki Mizukusa, Fuchu, JP;

Mitsuaki Kitamura, Fuchu, JP;

Assignee:

Ryobi Ltd., Fuchu-shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D 17/00 (2006.01); B22C 23/00 (2006.01); B29C 33/46 (2006.01);
U.S. Cl.
CPC ...
Abstract

A valve device has a main body in which an exhaust hole configuring a part of the gas drainage path is formed; a valve element capable of opening and closing the exhaust hole; a cylinder housing a piston coupled to the valve element; and an electromagnetic selector valve for selectively switching a supply route of a driving fluid supplied from a fluid supply source of a die-casting machine to the cylinder either to a front chamber of the cylinder or to a rear chamber of the cylinder. The main body includes a front face configuring a part of a parting face and a fitting portion that tightly adheres to a wall face of a housing hole. The electromagnetic selector valve is positioned on a rear side of the main body, and positioned inwardly of a contour line of the man body formed by the fitting portion.


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