Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Non-orienting tree cap










Image Number 4 for United States Patent #7621338.

A wellhead assembly includes a tree cap having a production mandrel extending down into a production passage of a Christmas tree to form a seal. The tree has an annulus bore and an annular cavity at the upper end of the tree surrounding the upper ends of the production and annulus bore. A communication gallery leads between the annulus bore and the cavity. The tree cap also includes an annular sealing member that enters the cavity for sealing a communication gallery.








 
 
  Recently Added Patents
Insulin derivative
High gradient lens for charged particle beam
Systems and methods for printing images outside a normal color gamut in image forming devices
Synthesis of amines and intermediates for the synthesis thereof
Integrated circuit packaging system with interconnects and method of manufacture thereof
Statistical information collection from one or more device(s) in storage communication with a computing platform
Methods and systems for motion estimation with nonlinear motion-field smoothing
  Randomly Featured Patents
Method for installing mold assembly
Heat exchanger
Exercise apparatus
Pen tray
Fluid energy reduction device
Transflective liquid crystal display
Transmission unit for a motor vehicle and control method therefor
Bicycle accessory light fixture
Fibre reinforced composites
Method for detecting oligonucleotides using energy transfer dyes with long stoke shift