Dust filter device

US7875094B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Otto Baumann · Echterdingen, DE
• Hardy Schmid · Stuttgart, DE

Key dates

• Filing date: Apr 19, 2007
• Grant date: Jan 25, 2011
• Expiry date: Mar 7, 2028

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2201/127
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A dust filter, in particular, for hand-guided power tools, includes a plate filter (18) with at least one spreader (14) for spreading filter folds (16) of the plate filter (18). The spreader (14) has a spreading device (24k 28), which is placed onto sides of the filter folds (16) of the plate filter (18) that are oriented away from a sealing frame (66) of the plate filter (18).