Patents Assigned to Hydro-Jet System Establishment
  • Method and device for embedding cables or the like into an underwater ground
    Patent number: 4362436
    Abstract: A cable or the like is embedded into an underwater ground by introducing the cable into a zone of reduced density which is produced progressively in the ground by a flushing process; upon meeting with ground formations which are only insufficiently loosened by the flushing process, mechanical loosening tools assist the loosening action of the flushing process. Preferably, the mechanical loosening tools are automatically put into and out of operation in dependence upon the depth of penetration of the flushing process.
    Type: Grant
    Filed: June 2, 1980
    Date of Patent: December 7, 1982
    Assignee: Hydro-Jet System Establishment
    Inventor: Rudolf Harmstorf