Beverage brewing machine

US5490448A · kind A · utility

Assignee

• The Braun Corporation · DE

Inventors

• Albrecht Weller · Steinbach, DE
• Georges Driesen · Neu-Anspach, DE
• Andreas Peter · Celle, DE
• Peter Herber · Groß Gerungs, AT
• Gerhard Schafer · Neunkirchen, DE
• Stefan Schamberg · Oberursel, DE
• Andreas Birk · Bad Homburg vor der Höhe, DE

Key dates

• Filing date: Mar 10, 1994
• Grant date: Feb 13, 1996
• Expiry date: Mar 10, 2014

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A47J31/465
• WIPO field: Furniture, games
• WIPO sector: Other fields

Abstract

In a first embodiment, a beverage brewing machine has a reservoir in which water is heated, which is arranged upstream of a brewing unit and heatable by an electric heating device. At the bottom is an outlet valve which opens only on reaching a given water temperature so that the hot water flows through an outlet pipe downstream of the outlet valve from the reservoir over the upper surface of a product, preferably ground coffee or tea-leaves, contained in a brewing unit, from which it goes to a receptacle as a beverage after extraction of the product. Hot water from the reservoir can also be taken via a pipe along paths other than over the upper surface of the product into the receptacle. The pipe takes a siphon-like path, the vertex of which is far enough above the bottom of the reservoir so that hot water also flows via the pipe to the other path and not only over the upper surface of the product only when a certain level is reached in the reservoir. In a second embodiment, the hot water is conveyed along the other path by a brewing head that has main and secondary chambers.