Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Expandable reamers for earth boring applications










Image Number 16 for United States Patent #7900717.

An expandable reamer apparatus for drilling a subterranean formation includes a tubular body, one or more blades, each blade positionally coupled to a sloped track of the tubular body, a push sleeve and a drilling fluid flow path extending through an inner bore of the tubular body for conducting drilling fluid therethrough. Each of the one or more blades includes at least one cutting element configured to remove material from a subterranean formation during reaming. The push sleeve is disposed in the inner bore of the tubular body and coupled to each of the one or more blades so as effect axial movement thereof along the track to an extended position responsive to exposure to a force or pressure of drilling fluid in the flow path of the inner bore.








 
 
  Recently Added Patents
Inductance element
Methods and apparatus for ultrasonic cleaning
Ink, ink jet recording method, ink cartridge, and ink jet recording apparatus
Tube lighting fixture
Jet pump and reactor
Managing method and apparatus for servicing contents provided by content provider
Hot-press cushion material and manufacturing method of the same
  Randomly Featured Patents
Method and apparatus for recognizing document image by use of color information
Method and apparatus for predicting signal characteristics in a wireless communication system
Light-polarizing material based on ethylenediamine polyacetic acid derivatives
Mower-conditioner equipped with first and second hollow rollers with reliefs
Method for protection vinyl polymers from thermo-oxidative destruction
Seat device for a ladder
Semiconductor crystal growing method
Fabrication of CCD type solid state image pickup device having double-structured charge transfer electrodes
Semiconductor device with decoupling capacitance
Apparatus and method for processing system printing data records on a page printer