Arrangement of a motor protection filter in a vacuum cleaner

US8745817B2 · kind B2 · utility

Assignee

• STEIN & CO. GmbH · DE

Inventors

• Thomas Stein · Oberkochen, DE
• Bernd Falkenstein · Wuppertal, DE

Key dates

• Filing date: Mar 2, 2011
• Grant date: Jun 10, 2014
• Expiry date: Nov 30, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2279/55
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A vacuum cleaner has a lid that selectively opens or closes a filter bag compartment. A secondary motor protection filter is removably mounted in the lid by a frame of an elastic material that simultaneously seals the secondary filter element to the lid and seals the lid onto the bag compartment. An air passage flows between the secondary filter and the lid through a duct to the suction motor compartment. A perimeter groove in the lid receives a spline of the elastic frame of the filter element in a removable manner, while the opposite surface of the frame forms the seal surface relative to a housing rim around the bag compartment.