Coffee brewing apparatus and method
US4143589A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 19, 1977 |
| Grant date | Mar 13, 1979 |
| Priority date | — |
| Expiry date | Oct 19, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J31/32
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
This coffee brewing apparatus includes a reservoir for fresh water, a heating chamber which is filled from the reservoir, a metering chamber which is filled from and entirely surrounded by the heating chamber, and a brewing chamber which receives the coffee to be infused. Valves between the reservoir and the heating chamber are controlled by a timing mechanism. A heater in the heating chamber is controlled by a thermostat to hold the water therein at brewing temperature. An air compressor, which delivers air to the metering chamber to force the heated water therefrom into the brewing chamber, is also controlled by the timing mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.