Method and apparatus for cleaning elongated tubes
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United States of America Patent
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Jun 21, 2016
Grant Date -
Apr 24, 2014
app pub date -
Dec 20, 2013
filing date -
Nov 2, 2010
priority date (Note) -
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Abstract
A system and method for cleaning elongated tubes is presented. An apparatus for cleaning elongated tubes includes a cart, a lance, a pressure sensing device and a propulsion device. The lance sprays material into elongated tubes to clean the elongated tubes. The cart supports the lance while the cart is moves in a rail in a forward direction and in a reverse direction. The pressure sensing device is located in the cart detects a pressure exerted on the cart as the cart moves in a forward direction in the rail. The propulsion device, upon the pressure sensing device detecting a pressure crossing a threshold value, propels the cart in the reverse direction for predetermined distance or time before again propelling the first cart in the forward direction.
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