1.-13. Earth boring cutter (rock drill)

Abstract

1. The features of the claimed design of an earth boring cutter may include a pointed edge and a rounded edge; the features also may include a channel between the pointed edge and the rounded edge, running substantially perpendicular to an axis between the pointed edge and the rounded edge; the pointed edge may include two angular sides meeting at an apex or at a substantially flat surface separating the two angular sides; the claimed design may also include a tapered edge about a perimeter of an upper surface.; 2. The features of the claimed design of an earth boring cutter may include two rounded sides; the two rounded sides may be opposite to one another; each of the sides between the two rounded sides may include a concave surface; the claimed design may also include a tapered edge about a perimeter of an upper surface.; 3. Features of the claimed design for an earth boring cutter may include a substantially square shape; the corners of the substantially square shape may be flat, such that the sides of the substantially square shape are separated by straight sides; an upper surface of the claimed design may be substantially flat; the claimed design may also include a tapered edge about a perimeter of the upper surface.; 4. Features of the claimed design for an earth boring cutter may include a substantially triangular shape; the corners of the substantially triangular shape may be flat, such that the sides of the substantially triangular shape are separated by straight sides; the length of the sides of the substantially triangular shape may be roughly equal to one another; the straight sides may also be roughly equal to one another; an upper surface of the claimed design may be substantially flat; the claimed design may also include a tapered edge about a perimeter of the upper surface.; 5. Features of the claimed design for an earth boring cutter may include a substantially square shape; the corners of the substantially square shape may be flat, such that the sides of the substantially square shape are separated by straight sides; an upper surface of the claimed design may include a raised ridge extending between two of the straight sides; the claimed design may also include a tapered edge about a perimeter of the upper surface.; 6. Features of the claimed design for an earth boring cutter may include a substantially square shape; the corners of the substantially square shape may be flat, such that the sides of the substantially square shape are separated by straight sides; an upper surface of the claimed design may include one or more grooves and ridges extending between opposite sides of the earth boring cutter; the straight sides may include indentations or concave features; the claimed design may also include a tapered edge about a perimeter of the upper surface.; 7. Features of the claimed design for an earth boring cutter may include alternating concave and convex side about a perimeter of the earth boring cutter; the earth boring cutter may include four convex sides and four concave sides; the concave and convex features of the concave and convex sides may extend along a height of the earth boring cutter; an upper surface of the earth boring cutter may include a substantially flat surface; the claimed design may also include a tapered edge about a perimeter of the upper surface.; 8. Features of the claimed design for an earth boring cutter may include four concave sides about a perimeter of the earth boring cutter; the concave sides may be separated by substantially flat sides; the concave sides may extend along a height of the earth boring cutter; an upper surface of the earth boring cutter may include a substantially flat surface; the claimed design may also include a tapered edge about a perimeter of the upper surface.; 9. Features of the claimed design for an earth boring cutter may include a substantially square shape; the corners of the substantially square shape may be rounded, such that the sides of the substantially square shape are separated by rounded sides; the length of the sides of the substantially square shape may be roughly equal to one another; the straight sides may also be roughly equal to one another; an upper surface of the claimed design may be substantially flat; the claimed design may also include a tapered edge about a perimeter of the upper surface.; 10. Features of the claimed design for an earth boring cutter may include a substantially round shape at an upper surface of the earth boring cutter; the upper surface of the claimed design may be substantially flat; the claimed design may also include a tapered edge about a perimeter of the upper surface; the claimed design may also include facets cut out of bottom of the earth boring cutter at a bias running from the exterior of the cutter towards a center; the claimed design may include four cutouts, creating a substantially square shaped bottom surface of the earth boring cutter.; 11. Features of the claimed design for an earth boring cutter may include a substantially diamond shape; the substantially diamond shape may include four primary side, each separated by a secondary side; the four primary sides may be equal in length; the secondary sides may also be equal in length; an upper surface of the claimed design may be substantially flat; the claimed design may also include a tapered edge about a perimeter of the upper surface.; 12. Features of the claimed design for an earth boring cutter may include a substantially round shape; the upper surface of the claimed design may be substantially flat; the claimed design may also include a tapered edge about a perimeter of the upper surface; the claimed design may also include biased facets that extend towards a top surface of the earth boring cutter; the claimed design may include four cutouts, creating a substantially square shaped upper surface of the earth boring cutter.; 13. Features of the claimed design for an earth boring cutter may include a substantially square shape; the corners of the substantially square shape may be flat, such that the sides of the substantially square shape are separated by straight sides; an upper surface of the claimed design may include channels extending between opposite sides of the earth boring cutter; the upper surface may include raised portions (in relation to the channels) corresponding to the straight sides; the claimed design may also include a tapered edge about a perimeter of the upper surface.

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