Integrated heater for a beverage preparation device

US8600223B2 · kind B2 · utility

Assignee

• NESTEC S.A. · CH

Inventors

• Stefan Etter · Kehrsatz, CH
• Gilles Gavillet · Ursy, CH
• Thomas Hodel · Hagendorn, CH
• Alexandre Kollep · Lutry, CH
• Peter Mori · Walperswil, CH
• Renzo Moser · Altdorf, CH
• Peter Preisig · Herisau, CH
• Robin Schwab · Bellinzona, CH

Key dates

• Filing date: Sep 30, 2008
• Grant date: Dec 3, 2013
• Expiry date: Dec 30, 2030

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A47J31/36
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

An integrated in-line heater for a liquid food or beverage preparation machine, in which liquid is circulated through the heater and then guided into a brewing chamber for brewing a food or beverage ingredient, for instance within a pod or capsule, supplied into the brewing chamber. An upstream part of the brewing chamber may be formed by the heater. One or more electric components may be incorporated into the heater and rigidly connected to a printed circuit board. The heater may have a tubular inner core that is eccentric with respect to a tubular or prismatic outer member which form together a helicoidal heating chamber of variable cross-section.