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
Arbitration for memory device with commands
Battery grid
Modular authoring and visualization of rules using trees
Light-emitting device
User interface for integrating applications on a mobile communication device
Communication apparatus, communication method, and communication system
Notebook computer
  Randomly Featured Patents
Switchback mechanism and image forming apparatus
Hair cosmetic treatment apparatus
Process for cleaning substrates
Separable bottom end assembly for slide fastener
Electrophoretic method and system having internal lane standards for color calibration
Positioning device for a mammography unit
16-Alkyl-1,4,9(11)-pregnatrienes and 9,11-epoxides thereof
Immunoassay reagents and methods for detecting brequinar and analogs
Method and apparatus for producing goods in an automated manner
Lubricant production process