Patent ID: 6918619
Filing Date: 2005-07-19
Classification: F16L,G21C,G21D,Y02E,Y10T

Abstract:
1. A pipe coupling assembly comprising: a first pipe section comprising a first coupling member located at an end of said first pipe section, said first coupling member comprising a cylindrical flange and a spherical convex seat portion, said flange comprising a first plurality of pivot notches; a second pipe section comprising a second coupling member located at an end of said second pipe section, said second coupling member comprising a cylindrical flange and a spherical concave seat portion, said flange comprising a second plurality of pivot notches, said concave seat portion configured to receive said first convex seat portion; and a first and a second cylindrical spring ring, each said spring ring comprising: a body having a first surface and an opposing second surface, said body comprising a main bore and a plurality of bolt bores extending therethrough, said main bore configured to receive a pipe section therethrough, said bolt bore configured to receive a fastener therethrough; a plurality of pivot bearings extending from said first surface, each said pivot bearing configured to engage a pipe section flange notch; and a plurality of bolt bore seats located in said second surface and coaxially aligned with said bolt bores, each said bolt bore seat configured to receive a first portion of a fastener.