Fitting structure including a pair of connection pipes and a clamp ring
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United States of America Patent
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-
Jul 23, 2013
Grant Date -
Nov 27, 2008
app pub date -
Nov 17, 2006
filing date -
Nov 29, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An engagement section of a holder is engaged with a metal gasket, the gasket is received in a tubular section, and the tubular section is fitted in a step of a connection pipe. Another connection pipe is placed close to and facing the connection pipe that holds the gasket through the holder, and a center ring is installed surrounding the outer peripheries of the flanges. While a trapezoidal section having slopes which define both sides is inserted into a groove, center ring segments are closed to form a ring shape. A bolt which penetrates through a cutout of a segment is screwed into a threaded hole of the segment. The screwing of the bolt causes the amount of insertion of the trapezoidal section, which has slopes which define both sides, into the groove to be increased. As a result, the distance between flanges is reduced and the contact pressure of projections against both sides of the gasket is increased.
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