Resources Contact Us Home
Gauge face inlay for bit hardfacing

Image Number 2 for United States Patent #5904212.

Steel bodies are manufactured in a production process that employs polystyrene patterns in a lost foam casting process. The patterns are machined to permit the formation of complex shapes that cannot be reproduced in simple patterns that are extractable from reusable, two-piece pattern molds or dies. Bit patterns formed in the process have forward canted blades that are machined from mating planar surfaces to simplify the machining process. The edges of the forward canted blades form a spiral surface for mounting cutter elements. The forward canting makes the blades stronger and thus permits the blades to be thinner than non-canted blades to increase the clearance between blades, which improves the movement of the cuttings past the bit. Recesses are machined into the gauge face of the patterns to produce a recess in the casting for receiving hardfacing. The hardfacing in the recess forms a layer that cooperates with the surrounding blade material to form a smooth transition area as the bit wears during usage.

  Recently Added Patents
Method to trace video content processed by a decoder
Lamp body with integrally molded heat sink
Reusing data in user run book automation
Color imaging device
Pulsed plasma with low wafer temperature for ultra thin layer etches
Stack and folding-typed electrode assembly and method for preparation of the same
Personalized location information for mobile devices
  Randomly Featured Patents
Quick coupling device for tubular components
Process for partial oxidation of a gas stream containing hydrogen sulphide
Process for producing human serum albumin
Method and system for controlling output current of a large, low-voltage, DC power supply and obtaining diagnostic information from the operation thereof
Method of making insulated electrical heating element using LTCC tape
Modular medical-bed mattress with underlying bed pan
Switch module system
Method and apparatus for use of a host address to validate accessed data
Porous film sensor
Solid state apparatus employing hall effect sensors for detecting the coagulation of blood