Resources Contact Us Home
Downhole tool

Image Number 4 for United States Patent #7073610.

A downhole tool for generating a longitudinal mechanical load. In one embodiment, a downhole hammer is disclosed which is activated by applying a load on the hammer and supplying pressurizing fluid to the hammer. The hammer includes a shuttle valve and piston that are moveable between first and further position, seal faces of the shuttle valve and piston being released when the valve and the piston are in their respective further positions, to allow fluid flow through the tool. When the seal is releasing, the piston impacts a remainder of the tool to generate mechanical load. The mechanical load is cyclical by repeated movements of the shuttle valve and piston.

  Recently Added Patents
Reduced plating ignitron
Interference suppressing OFDM system for wireless communications
Perception-based artifact quantification for volume rendering
Bicycle carrier
Under bump passive components in wafer level packaging
Method for programming non-volatile memory device and apparatuses performing the method
Display for gloves
  Randomly Featured Patents
Impeller locking means for impact crusher rotor
System for increasing horizontal field of view of a camera
Control method and system using a bluetooth for wireless communication, and a server and a terminal used for the same
Cosmetic kit
Cap for a beverage server
Baby harness with a carrying strap
Reducing power in SRAM using supply voltage control
Mineral-filled nylon molding compositions exhibiting low creep
Antisense modulation of PTP1B expression