Directional boring drill bit blade
Assigneebor-mor Inc.
InventorWillie J. Lessard
Life of this patent
Estimating the term…
Abstract
A directional earth boring drill bit blade includes an earth boring drill bit blade body having a cutting edge and having at least one fluid conduit through said earth boring drill bit blade body. A fluid nozzle is affixed to said at least one fluid conduit at the cutting edge. The earth boring drill bit blade body is adapted to be mounted to a boring tool body. The at least one conduit and nozzle cooperate to channel fluid so as to cool the directional boring drill bit blade and control steering while boring.
Claims17
A directional boring drill bit blade for mounting onto a boring tool wherein the boring tool provides fluid, wherein the directional boring drill bit blade comprises:
- (a) a directional earth boring drill bit blade body including a forward blade end having a substantially rectangular cross section and having a cutting edge;
- and
- (b) at least one fluid conduit through said directional earth boring drill bit blade body, said at least one fluid conduit having one end at the cutting edge and providing fluid for steering the boring tool.
A tool body for use with a drill pipe stem for boring holes into the earth comprising:
- (a) a tool body including,
- (i) a rearward end attachable to a drill pipe stem having a longitudinal axis, and
- (ii) a forward end;
- (b) an earth boring drill bit blade, including a forward blade end having a substantially rectangular cross section and having a cutting edge, the earth boring drill bit blade being fastened to the forward end of said tool body;
- (c) a fluid conduit within said earth boring drill bit blade having an inlet and an outlet;
- and
- (d) at least one fluid conduit through said earth boring drill bit blade, wherein said at least one fluid conduit directs fluid flow towards a forward end of said earth boring drill bit blade and wherein fluid flowing through said at least one fluid conduit operates to steer the tool body.
A directional boring tool for use in a directional boring machine comprising:
- (a) an earth boring drill bit blade body having a forward end having a substantially rectangular cross section and including a cutting edge;
- (b) at least one fluid conduit through said earth boring drill bit blade body, said at least one fluid conduit having one end at the cutting edge;
- and
- (c) a fluid nozzle affixed to said at least one fluid conduit at the cutting edge, wherein said earth boring drill bit blade body is adapted to being mounted to a boring tool body and wherein fluid flowing through said at least one fluid conduit operates to steer and cool said earth boring drill bit blade body.
Dependencies are inferred from the claim text.