Patent · US Expired

Drilling tool

US6113320A · kind A · utility

7Cited by

4References

9Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Peter Ostermeier · Dießen, DE
Rudolf Reitberger · Munich, DE

Key dates

Filing date	Mar 10, 1999
Grant date	Sep 5, 2000
Priority date	—
Expiry date	Mar 10, 2019

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T408/45
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A drilling tool including a chuck (10) for receiving a drill (2), a cooling medium delivery conduit (3) for delivering a cooling medium to the drill (2), and a first valve (5) for controlling flow of the cooling medium through the delivery conduit (3) and having an inlet (50) and an outlet (51) a cross-section of which can be reduced to zero.

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