Powered handtool

US4422239A · kind A · utility

Inventors

• Peter Maier · Rielasingen-Worblingen, DE
• Hans-Dieter Tschacher · Reichenbach, DE

Key dates

• Filing date: Oct 1, 1981
• Grant date: Dec 27, 1983
• Expiry date: Oct 1, 2001

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B24B23/028
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A powered hand tool, as for example an angle grinder or a milling tool for use with a routing cutter for working on wood or synthetic resin, has a housing, a motor, and a cover for the tool bit. In the housing an airway is placed for aspiration of air from the space within the cover, the airway coming to an end at an opposite end of the housing.