EP0104893A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Tool component
Assignee: De Beers Industrial Diamond Division Pty Ltd
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Filing: 1983-09-22
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Granted: —
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Expires: 2003-09-22
Abstract
Abstract A tool component comprising a disc-shaped compact located in a recess in a cemented carbide support of greater mass and bonded thereto. The carbide provides support behind the one major surface of the compact to which it is bonded and side support for a portion of the compact which is crescent-shaped in plan. The tool component has particular applications as, or as part, of a cutting element for a drill bit or in the cutting tool of a mining machine.
Inventors
- 👤 Cornelius Phaal
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 23:38
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/46; E21B10/56; E21B10/567; B; B23; B23B; B23B27/00; B23B27/14; B23B27/18; B23B27/20
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
81 words
A tool component comprising a disc-shaped abrasive compact located in a recess formed in a surface of a cemented carbide support of greater mass and bonded to the support; the one circular end surface of the compact being bonded to the support and the other circular end surface providing a cutting edge for the component; and the support providing substantial backing behind the major surface of the compact to which it is bonded and side support which is crescent-shaped in plan.
Claim 2
Dependent Claim
81 words
A tool component comprising a disc-shaped abrasive compact located in a recess formed in a surface of a cemented carbide support of greater mass and bonded to the support; the one circular end surface of the compact being bonded to the support and the other circular end surface providing a cutting edge for the component; and the support providing substantial backing behind the major surface of the compact to which it is bonded and side support which is crescent-shaped in plan.
Claim 3
Dependent Claim
29 words
A tool component according to claim 1 wherein the cutting edge extends around at least 50 percent of the circumference of the one circular end surface of the compact.
Claim 4
Dependent Claim
33 words
A tool component according to claim 1 or claim 2 wherein the carbide support is in the form of an elongate cylindrical pin and the recess is formed in one end surface thereof.
Claim 5
Dependent Claim
16 words
A tool component according to claim 3 wherein the pin is right- circular cylindrical in shape.
Claim 6
Dependent Claim
19 words
A tool component according to any one of the preceding claims wherein the abrasive compact is a diamond compact.
Claim 7
Dependent Claim
19 words
A tool component according to any one of the preceding claims wherein the cemented carbide is cemented tungsten carbide.
Claim 8
Dependent Claim
33 words
A drill bit comprising a working surface to which are secured a plurality of cutting elements, at least some of the cutting elements comprising components according to any one of the preceding claims.
Claim 9
Dependent Claim
46 words
A cutting tool for a mining machine comprising a holding lug having a recess formed in the cutting end thereof and a component according to any one of claims 1 to 6 located in and bonded to the recess, bonding being achieved through the carbide support.
References Cited (Backward Citations)
No citation records indexed.
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