Automatic coffee machine
US5007333A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 27, 1989 |
| Grant date | Apr 16, 1991 |
| Priority date | — |
| Expiry date | Nov 27, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J31/3614
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An automatic coffee machine, in particular for the preparation of individual cups and small pots, is equipped with an instantaneous water heater (1) for the preparation of hot water, an installation for the feeding of coffee powder and a brewing device incorporating a brewing chamber (17) consisting of a stationary tube section (11) with vertical axis (12) and two locking pieces (15, 16). There is an axial drive (33) for the motion of the upper locking piece (16) in the direction of the axis (12) 0f the tube section (11) and a radial drive (31) for the radial motion in relation to this axis (12). The upper locking piece (16) carries the hot-water inlet into the brewing chamber (17), it consists of two parts, i.e. a supporting piece (67) and an at least partly conical centering piece (68). The centering piece (68) is equipped with only one gasket (28) for the sealing of the brewing chamber (17) on the one hand and the sealing of the hot water inlet on the other hand. The centering piece (68) is accommodated on the supporting piece (67) with both limited axial and radial moveability. The gasket (28) is of such a diameter and is designed in accordance with the upper margin (80) of the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.