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:
Jan. 22, 1980
Filed:
May. 23, 1977
Applicant:
Inventors:
Helmut Landgraf, Duisburg-Rumeln-Kaldenhausen, DE;
Klaus Lange, Duisburg, DE;
Assignee:
Mannesmann Aktiengesellschaft, Dusseldorf, DE;
Primary Examiner:
Int. Cl.
CPC ...
F27B / ; F27D / ;
U.S. Cl.
CPC ...
432124 ; 432246 ; 198786 ; 226189 ; 414432 ;
Abstract
The roller track for moving large pipes through a tempering furnace includes two pairs of relatively closely spaced, resiliently mounted rollers disposed in the end zone of the furnace, where any portion of the pipe passing through is hot and has minimum strength on account of the heating.