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
Rotating sunlight/light beam for fractional/beneficial use
Method and apparatus for determining the altitude of a mobile device
Mask and method for forming the mask
Wide bandwidth hybrid antenna for combination EAS and RFID label or tag
Stable nanoemulsions for ultrasound-mediated drug delivery and imaging
Fusing apparatus and image forming apparatus provided with the same, and heating apparatus
  Randomly Featured Patents
Oil life monitor for diesel engines
Anti-atherosclerotic pharmaceutical compositions containing diphosphonate compounds
System and method for keyword extraction
Compounds and peptides that bind to the erythropoietin receptor
Video camera headset
Method and composition for devulcanization of waste rubber
Glasses with reflective frames
Method and system for facilitating paper to electronic communications
Powder for extinguishing fires of liquid substances or of a mixture of liquid substances
Method and system for determining spectrum availability within a network