Cuttting device
OwnerGursharan Singh Chana, Christopher John Slossinventors
Life of this patent
Estimating the term…
Abstract
A cutting device (11) comprises a cutting head (14) of substantially circular cross-section, the cutting head having a main axis (X), and a distal cutting edge (23). The cutting edge has a first cutter. The cutting head (14) has a cutting portion (21) and a second cutter extending inwardly of the cutting portion. The second cutter (26) comprises a plurality of spaced cutting members (32) arranged in an array around the main axis. Each cutting member has a substantially planar cutting surface (32A) extending substantially parallel to, and offset from, the main axis.
Claims22
A cutting device comprising:
- a cutting head of substantially circular cross-section, the cutting head having a main axis, and a distal cutting edge;
- the cutting edge having a first cutter;
- the cutting head having a cutting portion spaced from the cutting edge and a second cutter extending inwardly of the cutting portion;
- the second cutter comprising a plurality of spaced cutting members arranged in an array around the main axis;
- wherein each cutting member has a substantially planar cutting surface extending substantially parallel to, and offset from, the main axis.
2-52. (canceled)
A method of producing a cutting device comprising:
- a) forming a cutting device a blank having a main axis and a cutting head blank having a substantially conical surface;
- b) providing a material removal tool having first, second and third orthogonal axes of movement;
- c) arranging the cutting device blank relative to the material removal tool such that the main axis of the cutting device blank and the first axis of the material removal tool do not cross each other;
- d) removing material from the cutting head blank to define an aperture therein;
- e) thereafter rotating the cutting device blank about the main axis and repeating steps (c) and (d) until a plurality of apertures are defined in the cutting head blank to provide a cutting head.
Dependencies are inferred from the claim text.