Patent · US Active

Pick tool and assembly comprising same

US9334731B2 · kind B2 · utility

2Cited by

5References

7Claims

0Family size

Assignees

ELEMENT SIX ABRASIVES S.A. · LU
Element Six Limited · IE

Inventors

Cornelis Roelof Jonker · Randburg, ZA
Robert Fries · Rosebank, ZA
Frank Friedrich Lachmann · Hünfeld, DE
Bernd Heinrich Ries · Hünfeld, DE

Key dates

Filing date	Jan 11, 2013
Grant date	May 10, 2016
Priority date	—
Expiry date	Jan 11, 2033

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21C25/10
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A pick tool comprising a super-hard strike tip, a base and a unitary cemented carbide support body comprising a head portion including an overhang portion, and an insertion shaft extending from the head portion, a surface of the overhang portion extending laterally from the insertion shaft; the strike tip is attached to the head portion of the support body and the base is provided with a bore into which the insertion shaft is shrink fitted; the base has an external surface adjacent the bore and overhang portion of the head portion is configured to extend over at least an area of the external surface operative to shield the area from wear when in use.

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