Patent ID: 8511184
Filing Date: 2013-08-20
Classification: G01N

Abstract:
1. A device for taking samples from the bottom boundary layer of a water body, the device comprising: a supporting frame; sectioned sampling tubes; horizontal valves separating the sections of said sampling tubes; shock absorber units; support rods being part of said shock absorber units; lower ends of said support rods; lower intake apertures of said sectioned tubes near the bottom of the tubes; inner walls of the sampling tubes; wherein the lower intake apertures are located at different heights to take samples from different boundary layers minimizing the friction between the inner wall of the sampling tube and the sampling environment; wherein to obtain undisturbed samples, each of the sectioned sampling tubes is provided with horizontal valves at its whole length, and wherein the lower ends of said support rods of said support frame are provided with a contact surface.