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. 01, 1977
Filed:
Apr. 30, 1976
Applicant:
Inventors:
Manfred Hien, Saarbrucken, DT;
Paul Schmitt, Saarbrucken, DT;
Assignee:
Mannesmann Aktiengesellschaft, Dusseldorf, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B / ; B21B / ; B21B / ;
U.S. Cl.
CPC ...
72209 ; 72245 ;
Abstract
The upper one of a pair of grooved rolls is mounted on a carrier which is hydraulically biased in up direction but held down by a carriage acting as a lock and being pivotally suspended from a crossbeam of the roll stand. A hydraulic drive can retract the carriage laterally permitting the carrier to yield in up direction for exchanging the plug.