Coffee brewing machine
US5186096A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 7, 1990 |
| Grant date | Feb 16, 1993 |
| Priority date | — |
| Expiry date | Nov 7, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J31/545
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The coffee brewing machine can be used to prepare alternatively normal coffee or espresso coffee and comprises a boiler having a temperature control. The cold water is fed to the boiler by a water pump with adjustable feed rate. Two different brewing members are used for the preparation of the two kind of coffees, namely a sieve holder and a filter support which are connectable via a mounting and supporting flange to the boiler. A mode switch is assigned to the mounting and supporting flange which automatically changes the mode of operation of the coffee brewing machine upon exchanging the brewing member. Thereby, the feed rate of the water pump and the temperature of the hot water are adapted to optimize the conditions for preparing either normal coffee or espresso coffee.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.