Edward J Patula

US Patent:

44061439, Sep 27, 1983

Filed:

Dec 23, 1981

Appl. No.:

6/333836

Inventors:

Edward J. Patula - Monroeville PA

Assignee:

United States Steel Corporation - Pittsburgh PA

International Classification:

B21B 1710

US Classification:

72209

Abstract:

A pierced billet is fed to a plug rolling mill, wherein the first rolling pass is effected in conventional manner, i. e. the shell is rammed over a forming plug mounted on the front end of the mandrel and then drawn over the plug by the work-rolls. Rather than removing the shell from the mandrel and returning it to the entry side of the mill, the second pass on the shell is effected by reversing the rotation of the work-rolls and pushing the shell back through the reverse rotating work-rolls over the same plug whereby, in effect, the original exit side of the mill now becomes the entry side. This double passing over the same plug is achieved through the use of a newly designed plug, tapered in both directions, wherein the plug is connected to the mandrel so as to transmit the tension force on the plug to the mandrel.

US Patent:

55674828, Oct 22, 1996

Filed:

Dec 20, 1995

Appl. No.:

8/575816

Inventors:

Ersan Ilgar - Monroeville PA
Edward J. Patula - Monroeville PA
James R. Roney - Canton MI

Assignee:

USX Corporation - Pittsburgh PA
Rouge Steel Company - Dearborn MI

International Classification:

C08J 704

US Classification:

427510

Abstract:

In a high-speed electrogalvanizing process, steel strip is protected from the formation of troublesome zinc nodules by masking the edges of the strip, while the strip is moving and upstream from the electrogalvanizing step, with an ultraviolet curable coating, and curing the coating, while the strip is moving, prior to introduction to the electrogalvanizing step.