Patent · US Active

Retention system

US8061784B2 · kind B2 · utility

45Cited by

125References

21Claims

0Family size

Assignee

SCHLUMBERGER TECHNOLOGY CORPORATION · US

Inventors

David R. Hall · Provo, US
Scott Dahlgren · Alpine, US
Jonathan Marshall · Provo, US
Italo Elqueta · Lehi, US
Tyson J. Wilde · Provo, US
Christopher Durrand · Provo, US

Key dates

Filing date	Jun 9, 2008
Grant date	Nov 22, 2011
Priority date	—
Expiry date	Aug 22, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T403/217
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A retention assembly, comprises a carbide bolster comprising a cavity formed in its base end. A shaft comprises an inserted end disposed within the cavity. The shaft is disposed within a hollow shank which comprises a first end contacting the bolster and a loaded end in mechanical communication with the shaft. The inserted end is interlocked to an inner surface of the cavity through a casting.

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