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.:
Date of Patent:
Mar. 31, 1998
Filed:
May. 31, 1996
Applicant:
Inventors:
Richard J McClellan, Tiffin, OH (US);
Douglas A Yaussy, Bucyrus, OH (US);
Steven C Genet, Tiffin, OH (US);
Assignee:
The National Machinery Company, Tiffin, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21J / ;
U.S. Cl.
CPC ...
7240512 ; 470154 ; 724525 ; 7456 / ;
Abstract
A progressive forging machine having automatically adjustable cam timing for transfer finger opening and closing movement and for knockout pin action. The cams can be adjusted without manual effort to thereby reduce changeover time and the level of skill required to effect a changeover. For each of the transfer finger and knockout actions, a separate cam assembly is provided with a series of cam sections that are selectively repositionable on a common shaft by appropriate operation of a corresponding series of cam stop actuators and a common clutch actuator.