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:
Jul. 17, 2012
Filed:
Nov. 27, 2009
Applicants:
Andreas Groos, Rheurdt, DE;
Stefan Nitsche, Mülheim, DE;
Inventors:
Andreas Groos, Rheurdt, DE;
Stefan Nitsche, Mülheim, DE;
Assignee:
V&M Deutschland GmbH, Düsseldorf, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01B 21/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method for testing the driftability of metal tubes, wherein a cylindrical drift body having a defined diameter and a defined length is guided through the tube with defined force for ensuring a predetermined internal diameter and a minimum straightness. Virtual drifting is hereby performed instead of the physical drift operation.