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:
Aug. 02, 2016

Filed:

Feb. 05, 2013
Applicant:

Universal Can Corporation, Tokyo, JP;

Inventor:

Masahiro Hosoi, Sunto-gun, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 51/26 (2006.01);
U.S. Cl.
CPC ...
B21D 51/2669 (2013.01); B21D 51/2638 (2013.01);
Abstract

A diameter-reduction apparatus for can-trunk for performing a diameter-reduction process on a trunk part of a can-body having a closed-end cylindrical shape with an open end, including: a can-body holder holding a bottom part of the can-body, which is provided with: a base pad abutting on the bottom part of the can-boy; and a first clamping-ring having substantially a cylindrical shape which clamps an outer circumference surface of a trunk part of the can-body at the bottom side and which moves back and forth relative to the base pad along a can-axis direction; a die unit for diameter-reduction provided with a die for a diameter-reduction process of the trunk part by moving back and forth with respect to the can-body holder along the can-axis direction; and a first clamping-ring moving device moving the first clamping-ring backward along the can-axis direction along with an advance of the die.


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