Coffee apparatus with vacuum-fresh coffee beans
US6840157B2 · kind B2 · utility
2Cited by
2References
18Claims
0Family size
Inventor
Key dates
| Filing date | Aug 8, 2002 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | Dec 14, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J31/42
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A coffee apparatus comprises a coffee grinder which receives the coffee beans from a chamber which has a hermetically-sealed lid and a manually-operable venting valve, a sealing assembly for the outlet of the chamber, a vacuum pump capable of evacuating the chamber and a pressure switch connected to the vacuum pump and the chamber by a T-connector for turning on the pump to maintain a vacuum in the chamber when pressure in the chamber rises.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.