Resources Contact Us Home
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
Methods and apparatuses for configuring and operating graphics processing units
Use of physical deformation during scanning of an object to generate views of the object
Electronic device and recording medium
Isolation rings for blocking the interface between package components and the respective molding compound
Method for controlled layer transfer
Remote device pairing setup
Processor engine, integrated circuit and method therefor
  Randomly Featured Patents
System and method for a WPAN firewall
Method for the computer-assisted control and/or regulation of a technical system where the dynamic behavior of the technical system is modeled using a recurrent neural network
Fire protection system
One-piece toilet
Optically variable pigments of high electrical conductivity
Poly-pyridinium salts
Expanded material and laminate
Vehicle state monitoring server and vehicle state monitoring system
Gimbal pointing vector stabilization control system and method
Silicon wafer based macroscopic mirror for wide angle scanning applications