Patent ID: 11939831
Assignee: FNV IP B.V.
Field: Measurement (Instruments)
Classification: CPC E  B  G | IPC B  E  G

Claim 12:
13. A system for collecting samples from a bed of a waterbody comprising: a vessel, comprising a lifting an lowering unit having a cable attached to a device; and
the device comprising:
a control unit to be positioned in a remote position;
a top lift unit attached to a lifting and lowering unit of a vessel via a cable, such that the top lift unit can be lifted and lowered relative to the bed of the waterbody;
a corer unit releasable attached to the top lift unit by a fixation unit and arranged for being at least partly driven into layers of the bed of the waterbody to collect the samples from the bed, when released from the top lift unit;
a depth stabilizer configured to keep the corer unit and top lift unit stable in a vertical direction when they are attached and to level the top lift unit after the corer unit is released from the top lift unit, and
wherein the top lift unit comprises a positioning unit bi-directionally communicating with the control unit for controlling the position of the corer unit.