Preussag Aktiengesellschaft

Klaus Luck

Hans Amann

Fritz O Poeppel

Jurgen Burkhardt

Fritz-Otto Poeppel

In a method and apparatus for the recovery of sediments from the sea bottom, a suction head having a mouth is lowered into the sediment, raised from the sediment to form a depression, laterally moved to a new location adjacent the first depression, and the cycle is repeated to form a new depression. The suction head includes loosening means in the form of a worm or flukes which exert a low frictional resistance with respect to the sediment during lowering of the suction head and high frictional resistance when the head is being raised from the sediment.

Recovery of sediments from the bottom of the sea

A hoisting apparatus mounted on the deck of a ship for picking floating objects from the sea having an articulated lifting arm which extends over the side of the ship and gripping device suspended from the end of the arm for grasping objects in the water. The arm is actuated by an hydraulic cylinder connected to a source of high pressure liquid which may be dumped into the cylinder instantaneously in response to the closing of the gripping device around the object. The liquid is pressurized by a compressed gas. The apparatus produces a high hoisting speed and lifts the object very quickly from the water.

Growing community of inventors

Wenningsen, Germany

Klaus Luck