Patent · US Expired

Cutter bit with optimized shank

US5145237A · kind A · utility

14Cited by

2References

8Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Reinhard Schulz · Hannover, DE
Axel Neukirchen · Drensteinfurt, DE
Josef Obermeier · Peiting, DE

Key dates

Filing date	Jul 26, 1991
Grant date	Sep 8, 1992
Priority date	—
Expiry date	Jul 26, 2011

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25D17/02
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

An axially extending cutter bit has a shank extending between a trailing end (2, 7) arranged to be inserted into a tool chuck and a leading or working end (5, 8) with the shank between the trailing end and leading end being divided into a first section proceeding from the trailing end and a second section proceeding from the first section to the leading end. The second section is stepped inwardly from the first section. As a result, the energy throughput in passing shock waves is improved and higher material removal rates by the leading or working end are achieved.

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