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
Systems and methods of device-free motion detection and presence detection
One-dimensional metal nanostructures
Process for manufacturing a self-sealing composition
Etching composition
Data output apparatus and data output method
Compounds and their salts specific to the PPAR receptors and the EGF receptors and their use in the medical field
Image reproduction system and image reproduction processing program
  Randomly Featured Patents
Method and apparatus for removing image forming substance from image holding member
Electronic musical instrument having plural component blocks
Tie protector
Kelly head for hydraulic mast digger
Method and device for grinding hot, wet raw material
Feed raw material and feed containing zero fibre and procedure for producing these
Repair of combustion turbine components
Image processing device and image processing method
Automatic cementing system for precisely obtaining a desired cement density
Long acting diltiazem formulation