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. 20, 1979
Filed:
Jan. 30, 1978
Applicant:
Inventor:
Gunter Rothenberger, Bad Homburg-Dornholzhausen, DE;
Assignee:
Rothenberger GmbH & Co. Werkzeuge-Maschinen KG, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72393 ; 72477 ; 72481 ; 206372 ;
Abstract
A device for mounting exchangeable flanged sets of expanding elements on a tool for enlarging the ends of pipes. The tool comprises a tool body having an expanding mandrel and a removable cap for retaining the sets of elements on the mandrel. The device comprises a carrier having a plurality of orifices each for the insertion of one set of expanding elements. The carrier is removably mounted on the tool body and the sets of expanding elements are releasably retained in the orifices.