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
Gas flow indicator
Segmenting video based on timestamps in comments
Method and system for simulating wireless networks
Post-processing device and image forming system
PMI feedback with codebook interpolation
Method for accessing wireless network
Extreme ultraviolet light source device and method for generating extreme ultraviolet light
  Randomly Featured Patents
Portable hybrid applications for AC/DC load sharing
Retainer for use with a corona ground element of an electrostatic precipitator
Aerosol transport system
Interface/synchronization circuits for radio frequency receivers with mixing DAC architectures
Heat reclaiming method and apparatus
Electrical contact for use with LGA socket connector
Methods and compositions for treating inflammatory bowel disease
Disconnectable thyristor
African violet plant named Improved Alabama
Method for forming a potential hydrocarbon sensor with low sensitivity to methane and CO