Resources Contact Us Home
Communication joint for use in a well

Image Number 4 for United States Patent #4623020.

A communication joint for use in a well is disclosed. The communication joint includes a one-piece tubular body having an exterior surface adapted to form a slidable fluid seal with a wellhead member of the well. The tubular body includes first and second fluid conduits extending axially along and positioned in the tubular body, each conduit providing a fluid passageway independent of the other fluid conduit. Preferably, the first and second fluid conduits extend axially above and below the exterior surface of the body.

  Recently Added Patents
Power-on reset circuit
Barrier layers comprising Ni-inclusive ternary alloys, coated articles including barrier layers, and methods of making the same
Optical input device
Maintenance tool of control systems
Method to trace video content processed by a decoder
Breathing mask
Discharge circuit and method
  Randomly Featured Patents
Amplifier arrangement and method for calibrating an amplifier arrangement
System and method for managing interconnect carrier routing
Circuit arrangement
Head with roller for pulse-echo ultrasonic inspection of parts in an automatic parts inspection facility
High productivity vibration test fixture suited for testing printed circuit boards
Synergistic pharmaceutical combination for the prevention or treatment of diabetes
Surgical tool system with quick release coupling assembly
Control-key mechanism having improved operation feeling
Welding gun having contact tip and method of operating same
Method and apparatus for determining a sampling plan based on process and equipment state information