Lower chamber vent for the lower chamber of a brewing machine
US5479849A · kind A · utility
63Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1995 |
| Grant date | Jan 2, 1996 |
| Priority date | — |
| Expiry date | Mar 31, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J31/40
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A coffee brewing machine which allows the coffee to be more rapidly removed from the lower brewing chamber by providing a vent opening which opens to relieve the vacuum and allows the coffee to be discharged. In one embodiment, the vent opening is opened and closed by a plug on the upper brewing chamber. On another embodiment the vent hole is opened and closed by an actuator. In a third embodiment, a portion of the coffee filter serves as the vent hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.