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. 27, 2011

Filed:

Mar. 26, 2008
Applicants:

Todd Hossler, Tiffin, OH (US);

Michael W. Rindfuss, Tiffin, OH (US);

Inventors:

Todd Hossler, Tiffin, OH (US);

Michael W. Rindfuss, Tiffin, OH (US);

Assignee:

National Machinery LLC, Tiffin, OH (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21J 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a multi-station forging machine having a stationary die breast and a reciprocating slide moveable in a direction towards and away from the die breast, the slide carrying a tool holder at a workstation, a tool case moveable back and forth on the tool holder in the direction of slide movement, tool segments carried in the tool case and moveable between open and closed positions, a pivotal lever carried on the slide having one portion engaging a rearwardly facing surface adjacent a rear of the tool case, a pivot surface around which said lever pivots, and another portion on a part of the lever extending from the pivot surface remote from the one portion, a high force spring mounted on the die breast, the spring being arranged to apply a high biasing force to said other lever portion when the slide is near or at front dead center, the lever transferring said biasing force to said tool case to bias said tool case forwardly.


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