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:
Jun. 28, 1977
Filed:
Jul. 14, 1976
Applicant:
Inventor:
Heinrich Kutz, Neuss, DT;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ; B21J / ;
U.S. Cl.
CPC ...
72422 ; 72420 ; 7245318 ;
Abstract
A workpiece manipulator for holding workpieces being forged by a forging press has a tongs holder which moves with a parallel motion. The parallel motion is actuated by a hydraulic cylinder, and in the circuit which feeds this cylinder, there is a second cylinder connected to a pressure reservoir. When the pressure rises in the first cylinder during a forging stroke, the piston of the second cylinder yields to allow the first cylinder to actuate the necessary parallel motion.