Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Jack element adapted to rotate independent of a drill bit










Image Number 5 for United States Patent #7497279.

In one aspect of the present invention a downhole tool string has a rotor secured within a bore and connected to a jack element that is substantially coaxial with the rotor. A portion of the jack element extends out of an opening formed in a working face of a drill bit located at the bottom of the drill string. The jack element is adapted to rotate independent of the drill bit when the rotor and drill bit are in operation.








 
 
  Recently Added Patents
Socket type MEMS device with stand-off portion
Bio-stimulant for improved plant growth and development
Voltage regulators with improved wake-up response
Particles with high surface charge for crystalline colloidal arrays
System, method, and computer program product for identifying unwanted data communicated via a session initiation protocol
Soybean cultivar BY0811143
Power storage device and method for manufacturing the same
  Randomly Featured Patents
Determining the convex hull of convex polygons with congruent corresponding angles
Pharmaceutical formulations of plasminogen activator proteins
Method and apparatus for navigation of a dialogue system
Hog feeding device of improved durability
Powder metallurgy process and product
Light directing apparatus
Drawer organizer
Animal restraint device
Combustion chamber end wall with ventilation
Rinse bib construction