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.

Patent No.:

US 7134312 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 14, 2006

Filed:

Nov. 13, 2003
Applicants:

Shigeaki Yamanaka, Hiroshima, JP;

Takeshi Kazama, Hiroshima, JP;

Inventors:

Shigeaki Yamanaka, Hiroshima, JP;

Takeshi Kazama, Hiroshima, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 7/02 (2006.01); B21D 37/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

Improved die arrangements are provided whereby both an upper die and a lower die can easily be loaded into and unloaded from their respective die holders in a die exchanging operation. An improved die apparatus in a pressing machine in which an upper die set is securely loaded in an upper die holder fastened to a slide side for a pressing operation, comprises an arrangement whereby the upper die set is held in the upper die holder so that the upper die set can be extracted downwards from the upper die holder, wherein the upper die holder is provided with stopper means adapted to engage with the upper die set to hold the upper die set in place and adapted to disengage from the upper die set to allow the upper die set to disengage from the upper die holder.


Find Patent Forward Citations

Yamanaka, Shigeaki. (2006). Die apparatus and die exchanging method in pressing machine (U.S. Patent No. 7134312). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7134312

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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