Patent · US Active

Carbide bolster

US7628233B1 · kind B1 · utility

51Cited by

97References

17Claims

0Family size

Inventors

David R. Hall · Provo, US
Scott Dahlgren · Alpine, US
Casey Webb · Spanish Fork, US

Key dates

Filing date	Jul 23, 2008
Grant date	Dec 8, 2009
Priority date	—
Expiry date	Jul 23, 2028

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B10/5673
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A degradation assembly has a carbide bolster brazed within a hole formed in a surface. The bolster has a substantially straight cylindrical portion mostly disposed below the surface and a top end and a bottom end. The top end narrows from the cylindrical portion with a substantially annular concave curve to a planar interface adapted for bonding to a carbide substrate and the bottom end narrows from the cylindrical portion to a stem which bottoms out on a geometry of the hole.

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