Pipe joints or couplings – Connector for conduit housing electromagnetic line: – Having box and connector
Patent
1986-03-31
1989-05-02
Shoap, Allan N.
Pipe joints or couplings
Connector for conduit housing electromagnetic line:
Having box and connector
29526R, 219 6917, 220465, 277 1, 277 4, 277103, 277110, 2853323, 285348, 285351, 285356, 376204, 376260, 376292, F16J 1506, F16L 502, F16L 1906
Patent
active
048262170
ABSTRACT:
A joint between a pair of coaxial tubes which extend into a pressure vessel from a surface is sealed using a sleeve-like housing which surrounds the joint to be sealed. An upper fluid-tight seal is formed between the longer of the tubes and the housing. A lower fluid-tight seal is formed between the housing and the surface. An intermediate seal is also formed between the housing and the shorter tube. The upper and lower seals are independently preloaded through the use of spring washers. Primary loading of the lower seal to the surface is caused by fluid pressure in the vessel which acts on the housing.
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Combustion Engineering Inc.
Shoap Allan N.
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