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US 6,148,938 AGranted
Wear resistant cutter insert structure and method
AssigneeDresser Industries, Inc.
InventorMichael S. Beaton
Life of this patent
Estimating the term…
Abstract
A wear resistant cutter insert structure and method include a stud having at least one face. A primary tapered ridge and at least one secondary tapered ridge extending from the primary tapered ridge are formed in the face. A layer of abrasive material is disposed over the face covering the primary and secondary tapered ridges.
Claims15
A cutter insert for a roller cone rock bit comprising:
- a stud having at least one face, the at least one face having a primary tapered ridge and at least two secondary tapered ridges extending from separate respective points on the primary tapered ridge;
- and
- a layer of abrasive material disposed over the at least one face.
A roller cone rock bit comprising:
- a bit body;
- a support arm extending from the bit body;
- and
- a cutter cone coupled to the support arm, the cutter cone having at least one cutting element comprising:
- a stud having at least one face, the at least one face having a primary tapered ridge and at least two secondary tapered ridges extending from separate respective points on the primary tapered ridge;
- and
- a layer of abrasive material disposed over the at least one face.
4 more elements
A method for fabricating a cutting element for a roller cone rock bit comprising the steps of:
- providing a stud having at least one face, the at least one face having a primary tapered ridge and at least two secondary tapered ridges extending from separate respective points on the primary tapered ridge;
- and
- applying a layer of abrasive material over the at least one face.
A compact for a roller cone rock bit comprising:
- first and second faces which are generally opposite to each other;
- a plurality of primary ridges on said first and second faces;
- a plurality of secondary ridges, extending from multiple points on the respective crests of said primary ridges;
- and
- a layer of abrasive material disposed over said first and second faces.
2 more elements
Dependencies are inferred from the claim text.