Patent · US Expired

Manual tool for removing material from brittle and/or non-ductile stock

US5733074A · kind A · utility

399Cited by

13References

25Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Maximilian Stock · Azmoos, CH
Josef Obermeier · Peiting, DE
Eugen Magyari · Gams, CH
Peter Ofner · Feldkirch, AT

Key dates

Filing date	Dec 15, 1995
Grant date	Mar 31, 1998
Priority date	—
Expiry date	Dec 15, 2015

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T408/895
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A manual tool for removing material from brittle and/or non-ductile stock includes a housing (1) with a drive unit (2) for a tool bit (3) located within the housing (1). The tool bit is arranged to be rotated by the drive unit (3) about the bit axis. In addition, an electro-acoustic converter (4) for producing ultrasonic vibrations and a vibration amplifier (5) are positioned within the housing for superimposing ultrasonic vibrations on the rotational action of the tool bit during operation on the manual tool.

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