Patent · US Expired

Cutting tool and method of using same

US6868848B2 · kind B2 · utility

9Cited by

51References

52Claims

0Family size

Assignee

The Commonwealth of Australia Commonwealth Scientific and Industrial Research Organization · AU

Inventors

James Norman Boland · Calle de la Era, AU
Kit Bunker · Cleveland, AU
Paul E. Willis · Shepparton, AU

Key dates

Filing date	Nov 18, 2002
Grant date	Mar 22, 2005
Priority date	—
Expiry date	Nov 18, 2022

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21C35/188
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A cutting tool for cutting hard rock, the cutting tool including one or more cutting elements each including a pointed or chisel-shaped body including a diamond composite material including diamond crystals bonded together by a silicon carbide matrix, the each cutting element being mounted into a supporting matrix including a metal matrix composite material, such that the point or chisel edge of the each element protrudes from the matrix.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.