Patent · US Active

Self-sharpening, auto-signalling wearing part

US7930844B2 · kind B2 · utility

18Cited by

7References

20Claims

0Family size

Assignees

COMBI WEAR PARTS AB · SE
Vosta LMG B.V. · NL

Inventors

Per Quarfordt · Storfors, SE
Klaas Wijma · Haarlem, NL
Stefan Ederyd · Boo, SE

Key dates

Filing date	Oct 31, 2008
Grant date	Apr 26, 2011
Priority date	—
Expiry date	Oct 31, 2028

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE02F9/2866
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

Self-sharpening wearing part having improved abrasion resistance and strength, which wearing part comprises at least a first and a second material part. The first material part is constituted by a casting body and the second material part is comprised of at least one elongated hard metal rod which is fixed in the first material part. The wearing part produces an auto-signal when the part must be changed due to wear.

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