Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Pneumatic rock-boring device and method for starting such a device










Image Number 3 for United States Patent #7093671.

The invention relates to a method for horizontal ground-boring, in particular for rock-boring, by a rotating and hammering driven ground-boring device, whereby the device is alternately or simultaneously supplied with compressed air and drilling medium and the compressed air and drilling medium are supplied through a channel.








 
 
  Recently Added Patents
Semiconductor device
Compositions and processes for forming photovoltaic devices
Method for reserving network bandwidth for versioned network services
Boring machine
Identification of electrical grid phase information for end-points in a grid network
Method and system for remotely testing a wireless device
System and method for a driver circuit with a referenced control signal
  Randomly Featured Patents
Method and apparatus for distributed space-time coding in wireless radio networks
Hydroxymethylimidazodiazepines and their esters
Illumination device
Generation of a remainder from division of a first polynomial by a second polynomial
Fuel injection control device of internal combustion engine
Uv-curable and foamable resin composition
Eyeglass cases having timepieces and eyeglass cases having mirrors
Method for increasing the tensile, breaking and flexural strength of colored leads and colored pencils containing the same
Information recording medium, information recording method and apparatus, and information playback method and apparatus
Electrochemical treatment of lignins