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DRAIN LINE ACCESS DEVICE

  • US 20140109988A1
  • Filed: 07/30/2013
  • Published: 04/24/2014
  • Est. Priority Date: 10/19/2012
  • Status: Active Grant
First Claim
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1. An access device for inline installation on a drain line between a condensation producing source and a drain discharge, and said device comprising:

  • a main body having an inner wall surface extending to an inner bottom surface and surrounding an interior cavity, and said main body including an input connecting port sized and configured for sealed connection with the drain line and an outlet connecting port sized and configured for sealed connection with an opposite facing end of the drain line, and a flow passage extending through said interior cavity between said input and outlet connecting ports and the flow passage being at least as large as a cross-sectional dimension of an interior flow passage of the drain line;

    an injection port being structured and disposed for receiving a flow of pressurized gas or liquid and delivering the flow of pressurized gas or liquid into the interior chamber; and

    a flapper valve in the interior cavity of said main body being in a normally raised position adjacent to said injection port and removed from a flow of drain line contents through the flow passage, and said flapper valve being structured and disposed for being forced downwards and away from said injection port and to a closed position when the flow of pressurized gas or liquid enters the interior chamber through said injection port for sealing the input connection port closed and blocking flow of the drain line contents from the input connecting port into the flow passage and directing the flow of pressurized gas through the opposing outlet connecting port and into the drain line.

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