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:
Jan. 05, 1988
Filed:
Sep. 29, 1982
Applicant:
Inventor:
Edward J Waltonen, Southfield, MI (US);
Assignee:
REO Hydraulic Pierce & Form, Inc., Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B26D / ; B26D / ;
U.S. Cl.
CPC ...
83529 ; 83615 ; 83621 ; 83635 ; 83639 ; 83687 ;
Abstract
A self-equalizing device for performing mechanical operations such as piercing and punching wherein the piston means forming the work ram is internally mounted within the proximal portion of a yoke body, the yoke body being in turn mounted for sliding or rolling displacement on a stationary base. A knock out slot for a pin type punch is provided in the external portion of the piston ram. Single and multiple action devices are disclosed.