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
System for optimizing ad performance at campaign running time
Multi-axle vehicle suspension system
Preform for and an endoluminal prosthesis
Lithium secondary battery
System for realistically reproducing multimedia content and method thereof
Automated baseline removal of signal
In-vehicle speaker grill
  Randomly Featured Patents
Image reading apparatus capable of reading a projected image and having means for diffusing the projected luminous flux
Engine preheater
Router and mobile communication terminal for mobile communication network
Stabilized agrochemical compositions
Feather shaped wax candle
Process for producing .delta.-aminopentadienoate compound
System for storing waste fluids
Video cassette recorder capable of automatically setting a television receiver
Method for manufacturing a recording medium having metal substrate surface
Two piece jaw type clip