Expansion sealing device

Details Expansion sealing device Expansion sealing device

1991-02-08

1992-06-16

Nicholson, Eric K.

Pipe joints or couplings

For branched path

having a straight portion and an angled leg

137508, 1375992, F16K 1718

Patent

active

051219476

ABSTRACT:
A device for providing a sealed intersection between flow passages within a housing comprises an expansion sleeve with a cylindrical outer surface and an axially tapered inner surface for receiving a frusto-conical inner member of greater average diameter and the expansion sleeve is radially expanded in place after insertion into the installation bore, by the forcible insertion therein of the inner member. No interference occurs between the sleeve and the installation bore until after the sleeve is in place in the bore. The outer surface of the sleeve is reduced or not as many be desired to provide fluid communication among the flow passages. Two embodiments differ in that one seals between axially separated ports while the other seals between angularly separated ports.

REFERENCES:
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patent: 3874409 (1975-04-01), Lee
patent: 4418715 (1983-12-01), Balazs et al.
patent: 4706705 (1987-11-01), Lee, II
patent: 4741364 (1988-05-01), Stoss et al.
patent: 4836240 (1989-06-01), Elliott
patent: 4855041 (1989-08-01), Church et al.
patent: 4921017 (1990-05-01), Tada
patent: 4926908 (1990-05-01), Dschida
patent: 4971290 (1990-11-01), Dahlmann
patent: 5023990 (1991-06-01), Lee, II et al.

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