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
Maize variety hybrid X03A157
Systems and methods for vehicle cruise control
Vectorization of program code
Transparent conductive structure
LED drive circuit
Health monitoring of applications in a guest partition
Lid for a container
  Randomly Featured Patents
Ascosteroside and analogs thereof useful in antifungal compositions for methods of treating infections and inhibition of fungal growth
Count down led traffic signal
Confection dispenser
Heterojunction biopolar mixer circuitry
Mechanical control unit for a surgical microscope connected to a stand
Processes for the production of ethylene oxide and ethylene glycol
Oil well plug and abandonment method
Phase tracking multichannel link
Hand wheel for a water valve
Glove