Patents

In the invention there is provided a portable device for in-situ sub-sampling of aqueous sediments, which is direct and easy method enabling of close interval in-situ sub-sampling / sectioning of unconsolidated aqueous sediments up to millimeters level using a novel core liner which comprises of series of ring sections required sediment thickness or assorted thickness, aligned and joined together to form a tubular core liner. The said device is made to work mechanically to have full control over precise sub-sampling or sectioning of the in-situ aqueous sediments in real time at the required interval up to millimeters level and also preventing the sediment in the sections from mixing or contamination at the same time.