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
Hand-held electronic display device
System and method for associating financial transaction data with user's project data
Compositions and methods of vascular injury repair
Systems and methods for building axes, co-axes and paleo-geographic coordinates related to a stratified geological volume
Method of enhancing corrosion resistance of hollow vessels
Wild card auto completion
System and method for access of user accounts on remote servers
  Randomly Featured Patents
Vehicle seat
Reflective display device with divided electrodes
Well bore fluid
Adhesive silicone sheet, method for the preparation thereof and semiconductor devices
Adjustable window hinge
Ground plane on 2 layer PBGA
Magnesium-lithium alloys having improved characteristics
Buoyant fishing tackle support
Automobile wheel
Method and device for producing extreme ultraviolet and soft X-rays from a gaseous discharge