Domestic appliance with an electronic safety system and a mechanical locking system and method for operating a domestic appliance

US9055843B2 · kind B2 · utility

Assignee

• The Braun Corporation · DE

Inventors

• Christian Stenglein · Frankfurt am Main, DE
• Thomas Steiner · Trebur, DE
• Georg Boerger
• Sebastian Hottenrott · Idstein, DE
• Sebastian Fiolka · Frankfurt am Main, DE
• Yvonne Scholl · Frankfurt, DE
• Sabine Buhl-Remmel · Schwalbach am Taunus, DE
• Joern Riemer · Santa Clara, US

Key dates

• Filing date: Dec 8, 2011
• Grant date: Jun 16, 2015
• Expiry date: Dec 14, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01H9/06
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

The present invention relates to a hand blender having a processing tool for mixing or comminuting foodstuffs. The hand blender has an electric motor, a power source with a first pole electrically connected to the electric motor and a second pole electrically connected to the electric motor, a controller, first and second mechanical switches having a first position and a second position, an electromechanical element for detecting the position of the first mechanical switch, and an electrical switch for detecting the position of the second mechanical switch.