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US 12,330,112 B2Granted
Filtering byproducts of CIPP installation
AssigneeINA Acquisition Corp.
InventorsDennis Pivin, Kurt Schlake, Michael Shrum
Life of this patent
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Abstract
A system and method for capturing volatile organic components from a liner curing process for pipes. The system receives steam exhausted from the liner. The steam is used for curing a curable material in the liner, but volatilizes organic components in the resin carried along with the steam. The system removes some water and passes the remaining vaporized constituents through a filter selected to capture the particular volatile organic component from the steam.
Claims6
A method of lining a pipe comprising:
- providing a liner of an absorbent material that is ladened with a curable material;
- installing the liner into the pipe;
- inflating the liner within the pipe so that the liner assumes a generally tubular shape inside the pipe;
- injecting steam into the liner at a temperature which will promote curing of the curable material carried in the liner;
- exhausting steam from the liner;
- passing the exhaust steam from the liner through a filter system including at least one filter selected to capture a volatile organic component in the exhaust steam;
- wherein, prior to passing the exhaust steam from the liner through the filtering system, measuring the concentration of the volatile organic component in the exhaust stream.
4 more elements
Dependencies are inferred from the claim text.