Automatic coffee brewing apparatus and control method
US7571674B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Aug 22, 2005 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | May 24, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J31/3614
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
This invention provides for a coffee brewing apparatus and its control method, which comprises a control circuit and a water loop comprising a water reservoir, a pump, a control valve, a boiler, a brewing assembly, a three-way connector and a connecting hose. When coffee is to be brewed, hot water flows top-down through the brewing chamber cover, the upper filter, the coffee grounds, the lower filter, the brewing chamber, the first port of the three-way connector, the second port of the three-way connector and the connecting hose; the brewed coffee finally flows out from said connecting hose. This coffee brewing apparatus has additional functions of automatic residue discharge, automatic water discharge and automatic cleaning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.