Exhaust system connector seal
AssigneeDonaldson Company, Inc.
InventorsJohn R. Hiemstra, Wayne M. Wagner
Life of this patent
Estimating the term…
Abstract
A method and apparatus for joining two tubular members in a strong, leak-proof fashion in which a band of ductile metal is passed around the adjacent ends of the members and circumferentially stressed beyond its elastic limit to conform intimately with the outer surfaces of the members throughout practically their entire circumstances. Several constructions for applying the circumferential forces are disclosed, and use is taught of a packing element to prevent paraxial or helical leakage.
Claims16
The method of joining two substantially incompressible tubular members axially which comprises bending a flat band of ductile metal around the adjacent ends of the members in direct superficial contact with said members and circumferentially stressing the band beyond its elastic limit to cause it to conform to the surfaces of the members throughout substantially their entire circumference the ductile metal band being such that it yields before the material of said member.
In combination:
- a pair of substantially incompressible tubular members of generally the same outside diameter to be joined in end to end relation;
- a band ductile metal initially of strip form having end portions and bent to circular shape whereby the end portions confront one another, said band surrounding the joint between said members, the width of said band being generally the same as the diameters of said members, and a substantial portion of the width of said band engaging each of said members in direct contact therewith;
- and means circumferentially stressing said band beyond its elastic limit, whereby to draw the band into intimate sealing engagement with the outer surfaces of said members, and maintaining said engagement when achieved, the ductile metal band being such that it yields before the material of said members.
Dependencies are inferred from the claim text.