Direct sealing coupling
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United States of America Patent
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Nov 3, 1992
Grant Date -
N/A
app pub date -
Dec 17, 1991
filing date -
Dec 17, 1991
priority date (Note) -
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Abstract
A body is engaged with a sleeve by a direct sealing coupling. The sleeve has a flange at one end acting as a belleville spring. The flange has a sleeve sealing surface and a rear annular projection. The body has a body sealing surface at one end. The sleeve sealing surface has a conical angle and comes in contact with the body sealing surface by a female nut, a female thread of which is engaged with a male thread of the body, thereby applying fastening force onto the rear annular projection to form sealing between the body and the sleeve.
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