Resources Contact Us Home
Water jet system for trenching of pipelines

Image Number 13 for United States Patent #5288172.

A water jet system for trenching of a cable or a pipe below the floor of a river, lake, gulf or ocean bottom. Two opposed water jet legs are carried on a carriage forward of venturi tubes for disposing of the trenched bottom. The carriage includes a hydraulically powered track system for advancing along the length of the cable or pipeline. The water jets are a plurality of nozzles mounted in a rotating tube at different angular directions. When the nozzle tube rotates within the housing and the nozzles pass by different openings at different heights, the jets' high pressure water shoot forth. The high pressure action of the streams of water loosen the sediment below the floor of the body of water, which is subsequently carried away by air or water action through venturi tubes which are positioned behind the jet legs. The jet legs and carriage are positioned, controlled and powered from a work vessel on the surface of the water.

  Recently Added Patents
Method for conductivity control of (Al,In,Ga,B)N
Method of making a CIG target by spray forming
Measuring apparatus for measuring a physical property of a sample
Image surveillance system and method of detecting whether object is left behind or taken away
Integrated projector system
Treatment devices with deliver-activated inflatable members, and associated systems and methods for treating the spinal cord and other tissues
Account and customer creation in an on-line banking model
  Randomly Featured Patents
Method of forming a capacitor
Multiple centroid condensation of probability distribution clouds
Adiabatic dynamic logic
Container having improved reclosable pour spout mounted thereon and process therefor
Tire building core assembly and disassembly station
Call screening method and apparatus
Thermal management system and method for thin membrane type antennas
Photocatalyst and pulsed light synergism in deactivation of contaminants
Hydraulic brake controller
Shoulder prosthetic