Patent · US Expired

Hand tool comprising a dust suction device

US6848985B2 · kind B2 · utility

38Cited by

4References

3Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Justus Lamprecht · Dußlingen, DE
Joachim Hecht · Magstadt, DE
Stephan Jonas · Gerlingen, DE

Key dates

Filing date	Oct 17, 2001
Grant date	Feb 1, 2005
Priority date	—
Expiry date	Oct 17, 2021

Classification

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

Abstract

The dust removal device comprises a fan (18), a dust collection receptacle (24), and a suction passage (28). The dust collection receptacle (24) equipped with a dust filter (26) is located in the path of air flow (34, 36) between the suction passage (28) and the fan (18). The dust is therefore filtered out of the air stream before it reaches the fan, which prevents dust-induced wear. It is also possible to use the same fan for engine cooling as well as dust removal.

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