Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Tap hole drill for steelmaking vessel










Image Number 8 for United States Patent #5735647.

A drilling apparatus for drilling a worn and/or damaged tap hole refractory liner sleeve from a tap hole nozzle of an oxygen blown steelmaking vessel, the apparatus including an elongated, hollow boom structure with an elongated drill shaft rotatably disposed within the boom structure, motor means for rotating the drill shaft and moving it in both directions within the boom structure, and a clamp means at the outer end of the boom structure adapted to attach the outer end of the boom structure to the tap hole nozzle in an accurate, axially aligned position. A drill bit for use with the above drilling apparatus comprises a plurality of conventional rock drill bits attached to a base plate equally spaced in a pair of concentric circular arrangement around an axis of the base plate.








 
 
  Recently Added Patents
Process for producing .beta.-sialon fluorescent material
Implementing state-of-the-art gate transistor, sidewall profile/angle control by tuning gate etch process recipe parameters
Nonvolatile semiconductor memory device and method for controlling the same
Antitumoral compounds
Debris tray
Sample analysis and/or sample processing system
Methods and devices for detecting and measuring environmental conditions in high performance device packages
  Randomly Featured Patents
Board fixing structure
Projection method and projection system and mask therefor
Pneumatic audio sweep generator
Sensing UV dosage of a fluid stream
Low density parity check (LDPC) code
Field-replaceable unit revision compatibility
Method and apparatus for providing high speed data communications in a cellular environment
Golf club putter head weight
Light diffusion module and a back light module using the same
Systems, methods, and apparatus for a kinetic energy absorbing device