Patent · US Expired

Coal plow cutter

US7393061B2 · kind B2 · utility

7Cited by

3References

11Claims

0Family size

Assignee

DBT GMBH · DE

Inventors

Norbert Hesse · Bochum, DE
Adam Klabisch · Dortmund, DE
Uwe Tillessen · Kamen, DE
Klaus Duhnke · Bochum, DE
Gerhard Siepenkort · Ascheberg, DE

Key dates

Filing date	Apr 7, 2005
Grant date	Jul 1, 2008
Priority date	—
Expiry date	Apr 7, 2025

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21C35/1837
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A plow cutter having a cutter foot that includes a cutter shank and a cutter head, the plow cutter including at least one face cutting edge, a plurality of wear-resistant face cutting edge pins each anchored in a respective recess located in the face cutting edge, at least one of the plurality being located on either side of a center plane of the cutter head, and a floor blade that includes at least one wear-resistant floor blade pin. Each of the plurality of the face cutting edge pins and the floor blade pin is made of a highly wear-resistant material, and has a conical pin head and a curved dome shape external surface.

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