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
Low powered activation arrangement and method thereof
Therapeutic human anti-IL-1R1 monoclonal antibody
Photoacoustic joulemeter utilizing beam deflection technique
Communication apparatus and communication system
MOS resistor apparatus and methods
Signal apparatus for facilitating safe backup of vehicles
Rack
  Randomly Featured Patents
Pump element and pump having such a pump element
Reel of material in tape form
External receiver case
Cleaner hose
Double-pile loom
Prevention of corrosion, fire and explosion in oil wells
Groups of tag signals for data store in multi-plane set of buffers
Apparatus for remotely controlling a camera
Detection system for determining positional and other information about objects
Vinca derivatives