Patent ID: 8616075
Filing Date: 2013-12-31
Classification: B05B,B08B,G01N

Abstract:
1. A system comprising: a) a vessel having an internal volume and configured to store an ultra high purity fluid, the vessel comprising: a valve system 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; and b) a device capable of entering the interior of the vessel, the device comprising: a body; a sensor mounted on the body; at least one of a transmitter for transmitting the information from the device and a memory-storage device for storing the information; a shell that at least partially encloses the body; at least one wheel and/or roller formed from a material that does not reduce the purity of the fluid below a predetermined minimum when the material comes into contact with the fluid; and at least one electric motor and at least one drive axle for driving the at least one wheel and/or roller, wherein device is inserted into the internal volume by way of the valve system by opening the second valve while the first valve is in a closed position, and inserting the device into the first conduit by way of the third conduit and the second valve.