Shaft bearing-seal assembly penetrating the wall of a pressure vessel
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United States of America Patent
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-
Feb 25, 2003
Grant Date -
N/A
app pub date -
Mar 9, 2000
filing date -
Mar 15, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A rubber laminated bearing-seal, consisting of multiple flat or curved alternate laminations of metal and rubber bonded together and having an aperture, is seated in an apertured receptacle in the wall of a pressure vessel and supports a shaft that penetrates the apertures, extending from one side of the wall through to the other side. Shear strains in the rubber laminations permit the shaft to carry limited movements through the wall while the laminations seal against any flow of the liquid or gaseous medium on one side toward the other side and withstand the resulting thrust caused by large pressure differences. The torque reaction of this bearing-seal is essentially proportional to rotation angle. A potential use is in the intense hydrostatic pressure environment of undersea applications at great depths, carrying limited motion through the hull of a submersible craft.
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