Patents Assigned to H. Schwer GmbH Edelstahl-Fittings
  • Patent number: 5393109
    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.
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: February 28, 1995
    Assignee: H. Schwer GmbH Edelstahl-Fittings
    Inventor: Paul Gumpel