Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Column structure enabling handling appliances on the seabed, particularly for the assembly and maintenance of well-heads










Image Number 4 for United States Patent #4119145.

The invention concerns the handling of appliances on the seabed, particularly for handling and maintaining well-heads and corresponding installations. For handling the well-heads, trolleys are mounted for travel along a column which is articulated to a base constructed on the seabed over a number of drilling wells. The trolleys are movable between the upper structure of the columns and the lower body part of the column coupled to the base, and carry well-heads or other devices between the upper structure and the base and release the same upon reaching the lower part of the column at a position above corresponding well orifices. Elongate vertical members or posts of the column have lateral walls constituting guide rails for the trolleys.








 
 
  Recently Added Patents
Lubricating oil compositions
Image processor
Terminal box assembly
DL control channel structure enhancement
Method and apparatus for rebuilding data in a dispersed data storage network
Linear book scanner
Memory device and semiconductor device
  Randomly Featured Patents
Liquid sample station
Refractory metal roughness reduction using high temperature anneal in hydrides or organo-silane ambients
Semiconductor read/write memory array having serial access
Process for producing sodium carboxymethylcellulose
Hydromechanical system for limiting differential speed between differentially rotating members
Closure apparatus for a high pressure vessel
Switch assembly having replaceable switch cap
Particle sizer and DNA sequencer
Bandage handy strips
Orthopedic prosthesis with cement compression ring and method