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:
Nov. 10, 2015

Filed:

Jun. 25, 2012
Applicant:

Kazuyuki Yamaguchi, Kariya, JP;

Inventor:

Kazuyuki Yamaguchi, Kariya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22D 17/32 (2006.01); B65D 83/00 (2006.01); B29C 45/82 (2006.01); B29C 45/53 (2006.01);
U.S. Cl.
CPC ...
B65D 83/0022 (2013.01); B22D 17/32 (2013.01); B29C 45/531 (2013.01); B29C 45/82 (2013.01);
Abstract

An injection apparatus includes an actuating cylinder, an accommodating chamber, and a volume changing part capable of changing the volume of the accommodating chamber. The actuating cylinder has an operation chamber and a piston accommodated in the operation chamber, and supplies an incompressible fluid to the injection cylinder by forcing out the incompressible fluid inside the operation chamber with the piston. The accommodating chamber is connected to the operation chamber, and holds at least some of the incompressible fluid that flows out from the operation chamber due to the piston being pushed out. The volume changing part expands the volume of the accommodating chamber, at the latest simultaneously with the start of acceleration of the actuating cylinder, and stops the expansion of the volume when the operating speed of the piston of the actuating cylinder has reached a desired speed.


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