Method for a watertight connection in a water service
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United States of America Patent
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-
Nov 16, 2010
Grant Date -
Apr 17, 2008
app pub date -
Dec 7, 2007
filing date -
Mar 24, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved seal and method for providing a watertight compression joint connection between a valve or fitting and a flare end of a copper tubing in a water service. The improvement includes an O-ring seal on a bull nose end of a valve and a frictional material inserted into straight AWWA threads on a male inlet or outlet of the valve to sealingly engage a flared end of the copper tubing to the bull nose end and to frictionally engage a flare nut with the tubing back onto the matching bull nose end of the valve when screwing the flare nut onto the male threads of the valve, respectively.
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