Tube plug for a heat exchanger tube
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United States of America Patent
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Mar 3, 2015
Grant Date -
May 17, 2012
app pub date -
Nov 15, 2010
filing date -
Nov 15, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A tube plug adapted to be driven into and then plug an open end of a heat exchange tube that extends transversely through and is secured in a tubesheet of a heat exchanger, where the tube plug includes an elongated shaft having a lead part adapted to be introduced into the open end of the heat exchange tube and an opposite rear part, and a fluid seal situated on the lead part, the seal including a set of lead and rear ring flanges fixed to the lead part, extending radially outward therefrom, and axially spaced apart from each other, and a compressible and resilient ring-shaped gasket adapted to encircle the lead part of the shaft when situated axially between the ring flanges.
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