Suction nozzle for a vacuum cleaner, comprising a dust flow display device

US7805803B2 · kind B2 · utility

Assignee

• MIELE & CIE. KG · DE

Inventors

• Klemens Andrup · Verl, DE
• Diethard Becker · Bielefeld, DE
• Seyfettin Kara · Spenge, DE
• Oliver Liebig · Bielefeld, DE
• Rainer Schultz · Seevetal, DE
• Heiko Stork · Herford, DE
• Stefan Tiekoetter · Bielefeld, DE
• Cornelius Wolf · Bielefeld, DE

Key dates

• Filing date: Feb 1, 2005
• Grant date: Oct 5, 2010
• Expiry date: Oct 30, 2027

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A47L9/281
• WIPO field: Furniture, games
• WIPO sector: Other fields

Abstract

A suction nozzle for a vacuum cleaner that can be connected to a suction pipe and/or a suction tube of the vacuum cleaner includes a nozzle part that can be connected to the suction pipe or the suction tube by means of a tubular connection part. A dust sensor is arranged in the flow path of the vacuum cleaner, the signals thereof being evaluated by a battery-operated electronic control device that can be activated by a low-pressure switch. During operation, said control device controls a display device displaying the dust flow. The control device, the low-pressure switch, the display elements displaying the dust flow, and a battery compartment for receiving the batteries are arranged in a housing formed on the upper side of the tubular connection part. The dust sensor is arranged beneath the housing, inside the upper region of the connection part, in the dust air stream.