Patent · US Expired

Drilling or chiseling tool with suction apparatus

US5467835A · kind A · utility

92Cited by

4References

9Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Josef Obermeier · Peiting, DE
Ulrich Müller-Boysen · Deizisau, DE
Siegfried Keusch · Deizisau, DE
Peter Gaffal · Welzheim, DE

Key dates

Filing date	Oct 18, 1994
Grant date	Nov 21, 1995
Priority date	—
Expiry date	Oct 18, 2014

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T408/50
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A drilling or chiseling tool includes a suction apparatus (8) releasably mounted on a housing (1) of the tool. The suction apparatus (8) contains a replaceable separating device (11) formed of a housing (13) subdivided into two separate chambers (K1, K2) by a filter element (14) replaceably fitted in the housing. Each chamber (K1, K2) has an aperture (12, 15) and the cross-sections of the apertures extend at right angles to one another.

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