Patent · US Expired

Stretch reducing mills

US3952570A · kind A · utility

7Cited by

5References

5Claims

0Family size

Assignee

Firma Friedrich Kocks GmbH & Company

Inventors

Werner Demny · Düsseldorf, DE
Hermann Moeltner · Grevenbroich, DE

Key dates

Filing date	Jun 26, 1974
Grant date	Apr 27, 1976
Priority date	—
Expiry date	Jun 26, 1994

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB21B17/14
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A sizing mill is provided for reducing tubes having a number of roll stands arranged one behind the other and in which the sizing pass of at least the first stand is so out of round that the first sizing pass can effect tube reduction over the whole range of external diameters of tubes to be rolled in any given rolling program.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.