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:
Dec. 26, 1978
Filed:
Oct. 14, 1977
Applicant:
Inventors:
Werner Keulertz, Duisburg, DE;
Karl-Heinz Wessel, Dinslaken, DE;
Assignee:
DEMAG, Aktiengesellschaft, Duisburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
242 721 ;
Abstract
The invention refers to an expandable mandrel reel to coil strip-like rolling material, particularly hot strip, with an inner mandrel shaft, as well as several expanding segments affixed to the latter. The segments are spread by activating a tie rod, and are supported on several wedge faces on the mandrel shaft and rising in the longitudinal direction of the shaft. Means are provided for keeping the expanding segments in place against centrifugal force.