Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Image processing apparatus, image processing method, and program
Power generating apparatus of renewable energy type and method of attaching and detaching blade
Transmission terminal, transmission system, transmission method, and recording medium storing transmission control program
Apparatus for providing location information of hand-held device and method thereof
Systems and methods for identifying malicious domains using internet-wide DNS lookup patterns
Multi user MIMO detection utilizing averaged spatial whitening
Portable stand
  Randomly Featured Patents
Six-term Karatsuba-variant calculator
Shear type tree cutter
Memories having a charge storage node at least partially located in a trench in a semiconductor substrate and electrically coupled to a source/drain region formed in the substrate
Oligomeric aqueous finishes
Cream pitcher or similar article
Method of controlling a continuously variable transmission automatically or as a driver-controlled manual stepped transmission
Thermoset polymer coating with organopolysiloxane for closure assembly
Method and circuit arrangement for controlling a load
Fabrication technique for controlled incorporation of nitrogen in gate dielectric
Mounting bracket