Resources Contact Us Home
Adjustable deflecting sub

Image Number 3 for United States Patent #6799646.

As a serial element of a drill string, the drill string is adjustably bent by rotating one end of the sub relative to the other end. The opposite ends rotate about a tilted center line such that in one rotational position the sub is straight. One half turn of one end relative to the other bends the sub to the maximum angle. Between straight and maximum bend, any angle can be achieved by control of the amount of the relative rotation between the opposite ends of the sub.

  Recently Added Patents
Active region patterning in double patterning processes
Initiating router functions
Generic validation test framework for graphical user interfaces
Water detection device
System and method for a wireless display low power managed adapter
Alternate procedures assisting computer users in solving problems related to error and informational messages
Methods, apparatus, and computer program products for subscriber authentication and temporary code generation
  Randomly Featured Patents
BF.sub.3 removal from BF.sub.3 catalyzed olefin oligomer
Isolation system with digital communication across a capacitive barrier
Holder for a beaker containing a drink
Treatment of cardiovascular and related pathologies
Heavy oil well stimulation composition and process
Method for adaptively thresholding grayscale image data
Method for coordinating stats collection and analysis among multiple hosts
Casegrain telescope with spherical mirror surfaces
System and method of determining maximum power point tracking for a solar power inverter
Cathode construction