Patent ID: 7971497
Filing Date: 2011-07-05
Classification: B05B,B08B,G01N

Abstract:
1. A method for inspecting and/or repairing a vessel having an internal volume and configured to store an ultra high purity fluid, wherein the method comprises the steps of: inserting a device into the internal volume of the vessel without infiltration of ambient air wherein the device does not introduce a contaminant into the internal volume; and inspecting and/or repairing the vessel using the device wherein the inspecting and/or repairing step is conducted prior to storing the ultra high purity fluid, wherein the vessel further comprises a valve system for inserting the device comprising a first valve and a second valve connected by a first conduit; a second conduit that connects the first valve and the vessel; a third conduit connected to the second valve; and a purging device connected to the first conduit.