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
Control device with adjusting pulse width modulation function and the backlight module thereof
Geographically self-labeling access points
Radio communication system, transmission apparatus, reception apparatus, and radio communication method in radio communication
Portable hand-held multi-function device for storing, managing and combining rewards
Toy ball
Polyurethane resin, toner for developing electrostatic charge image, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
Sealing member for piezoelectric resonator device, and piezoelectric resonator device
  Randomly Featured Patents
Data archive system
Gasification of carbonaceous solids
Portable golf ball storage, dispensing and display apparatus
Surgical needle assembly
Gemstone
Plug-in card for optical transmission apparatus
Methods and apparatus for determining gas-oil ratio in a geological formation through the use of spectroscopy
Frequency selective imaging system
Connector
Anti-clotting apparatus and methods for fluid handling system