Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Downhole lubrication system










Image Number 13 for United States Patent #8141662.

What is claimed is a downhole lubrication system comprising a drill string component comprising an outer diameter and an inner bore. A reservoir may be disposed intermediate the outer diameter and inner bore. A piston may be disposed at least partially within the reservoir. At least one channel may extend from the reservoir to a bearing surface. As drilling fluid is passed through the inner bore, the piston may be pressurized, urging lubricant toward the bearing surface via the at least one channel.








 
 
  Recently Added Patents
Method and system for generating and displaying an interactive dynamic selective view of multiply connected objects
RFID device using single antenna for multiple resonant frequency ranges
Method and apparatus for prioritizing data transfer
Mobile communication device and method for providing positioning information
Universal handle extension for unloading butterfly valve for tank trailer or other vehicle
(4933
Deceleration dependent shift control
  Randomly Featured Patents
Suction support and method of use
Action transmission system, terminal apparatus, action transmission method, and action transmission program
Faucet device operatable either manually or automatically
Yogurt containing confectionery pieces
Binocucorder
Apparatus for making and delivering sublimable pellets
Fishing lure
Method of manufacturing a semiconductor substrate having a cavity
Pressure and vacuum relief valve with debris-catching feature
External-loop perfusion air-lift bioreactor