Connection and elbow in a gas appliance
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United States of America Patent
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Sep 16, 2014
Issued Date -
N/A
app pub date -
Sep 13, 2012
filing date -
Sep 13, 2011
priority date (Note) -
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Abstract
A connection is provided whereby a first tube, which may be bent into an elbow, has at least one end flow drilled. During the flow drilling process the first end is shortened, reduced in thickness, and most importantly, the inner diameter is increased to accept a second tube. Before connecting the second tube, the first end is preferably tapped with threads which can receive a nut and the nut captures an end of the second tube, preferably entrapping one of at least one bead and a ferrel to provide a connection.
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