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:
Feb. 28, 1995
Filed:
Aug. 16, 1993
Applicant:
Inventor:
Paul Gumpel, Bodman-Ludwigshafen, DE;
Assignee:
H. Schwer GmbH Edelstahl-Fittings, Denkingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
2853827 ; 285422 ; 72367 ;
Abstract
In a pipe connection having a cutting ring comprising a metallic compound, in particular an alloy with the constituents CrNiMo, which cutting ring surrounds the pipe wall and can be pressed into same with at least one cutting edge, the cutting ring is cut to length and shaped from an elongate portion, in particular a hollow profile member or tube, that is drawn from stainless steel and cold hardened. A cutting ring (16) according to the invention of that kind is preferably cut to length from a tube drawn from stainless steel, and then shaped and cold hardened.