Metal fusion bonding – Process – Plural joints
Reexamination Certificate
2005-03-29
2005-03-29
Stoner, Kiley (Department: 1725)
Metal fusion bonding
Process
Plural joints
C228S246000, C165S177000
Reexamination Certificate
active
06871774
ABSTRACT:
A method of establishing a leak tight and structural connection between a core tube and an accommodating header plate in a tubular heat exchanger, including the steps of positioning the core tube into bores of the header plate and a braze foil, installing a ferrule inside the core tube end, radially expanding the ferrule in the core tube end, thus expanding the core tube end into intimate contact with the header plate in which it is received, deforming a ferrule into pinching contact with the braze foil plate, directing the flow of the braze material towards the contact surface area, and brazing the tubular heat exchanger in order to form a seal at the intimate contact area. A leak tight connection and a tubular heat exchanger having a leak tight connection produced via the noted method are also set forth.
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Dann Dorfman Herrell and Skillman
Herrell, Esq. Roger W.
Stoner Kiley
Triumph Brands, Inc.
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