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
System and method for parallel video processing in multicore devices
Method of isolating human neuroepithelial precursor cells from human fetal tissue
Memory device, test operation method thereof, and system including the same
Over the counter medicinal container with surface ornamentation
Pixel interleaving configurations for use in high definition electronic sign displays
High performance design rule checking technique
Positioning vehicles to improve quality of observations at intersections
  Randomly Featured Patents
Reel shaft of barcode printer
Processing pixels of a digital image
Skeletal reconstruction cages
Modular bottle-mounted gas management system
Process for the preparation of chloropyridine sulphonic acid chlorides
Bipolar-CMOS (BiCMOS) process for fabricating integrated circuits
Communication setting apparatus and method for communicating tone performance data
Adaptive differential pulse code modulation system with transmission error compensation
Aminosulfonyl-substituted aryloxyalkyl diketones
Substituted acylating agents and their production