Brewed beverage maker with unpressurized boiler vessel steam generator tube and common heating element

US5367607A · kind A · utility

Assignee

• The Braun Corporation · DE

Inventors

• Walter Hufnagl · Pocking, DE
• Stefan Schamberg · Oberursel, DE
• Gerhard Schafer · Neunkirchen, DE
• Roland Muller · Weiling, DE
• Manfred Klawuhn · Frankfurt am Main, DE

Key dates

• Filing date: Sep 11, 1992
• Grant date: Nov 22, 1994
• Expiry date: Sep 11, 2012

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A47J31/542
• WIPO field: Furniture, games
• WIPO sector: Other fields

Abstract

An espresso coffee making system includes an unpressurized boiler vessel with an electric heating element arranged outside the boiler vessel for heating water in the boiler vessel for delivery to a perforated filter holder of the espresso coffee maker. A tube is provided between the electric heating element and the boiler vessel that is in thermal contact with both the heating element and the boiler vessel. A valve allows water from the boiler vessel to be recirculated by a pump through the tube to generate steam, without overheating the water contained in the boiler vessel.