Patent ID: 6505864
Filing Date: 2003-01-14
Classification: F16L

Abstract:
A connector for connecting two adjacent sections of oval cross-section gas ducts comprising:a pair of identical oval shaped connector elements, each element adapted to be sealingly secured to an end of a section of gas duct having an oval cross-section; each of said elements comprising two semi-circular rings having a flat annular surface and an upstanding annular flange extending radially outwardly from said flat annular surface; each of said semi-circular rings having universal connectors formed separately from said semi-circular rings and thereafter permanently affixed to said semi-circular rings; a pair of angle pieces having identical lengths fixed to said universal connectors to form one of said oval shaped connector elements; said angle pieces being selected for their lengths to accommodate the particular shape of said oval cross-section duct; said angle pieces having flat sections and upstanding flange walls to match the flat annular surfaces and upstanding annular flanges of said semi-circular rings; said universal connectors having offset surfaces to receive said semi-circular rings and said angle pieces so that when said semi-circular rings and said angle pieces are attached to said universal connectors, continuous surfaces are formed on said connector; means to connect each of said oval shaped connector elements to ends of said ducts; gasket means positioned between the flange walls of said oval shaped connector elements; and means to connect said oval shaped connector elements to each other and to exert a compressive force on said gasket means to seal said oval shaped connector elements to each other to prevent leakage of gas between them.