Foods and beverages: apparatus – Beverage – Infusors
Patent
1990-04-24
1992-01-28
Jenkins, Robert W.
Foods and beverages: apparatus
Beverage
Infusors
99287, 99288, 99307, 241 65, A47J 3142
Patent
active
050835025
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to a coffee making machine and more particularly to a coffee making machine for automatically obtaining coffee from unroasted coffee beans.
BACKGROUND ART
There have been proposed coffee making machines in which roasted coffee beans are ground and the coffee solution is extracted from the ground coffee. In the conventional coffee making machines, ground coffee must be stored at coffee serving locations in order to serve coffee to users any time they want it. However, if coffee beans are not used shortly after they have roasted within a week, their flavor deteriorates. This brings about the problem in which the conventional coffee making machine cannot always provide users with coffee having full taste and aroma any time they want to drink it.
The object of the present invention is to provide a coffee making machine which overcomes the problems occurring in the conventional coffee making machine and may automatically obtain coffee from unroasted coffee beans in a short time.
DISCLOSURE OF THE INVENTION
A coffee making machine according to the present invention comprises a first container for housing coffee beans, a roaster having roasting means for roasting the coffee beans, a second container for receiving the roasted coffee beans, a milling/extracting unit including both milling means for grinding roasted coffee beans into ground coffee and a filter for extracting coffee solution from the ground coffee, means for conveying the roasted coffee beans from the roaster to the milling/ extracting unit, a blower for blowing air into the second container to cool the roasted coffee beans before coffee solution is extracted, a pouring unit for pouring hot water onto the ground coffee so as to be extracted, a coffee server for receiving the coffee solution, and mean for supplying the coffee solution from the milling/extracting unit to the coffee server.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a longitudinal sectional view of a coffee making machine according to one embodiment of the present invention;
FIG. 2 is a plan view of FIG. 1;
FIG. 3 is a cross sectional view along line 3--3 of FIG. 1; and
FIG. 4 is a perspective view of the coffee making machine of FIG. 1.
BEST MODE FOR CARRYING OUT THE INVENTION
A coffee making machine according to one embodiment of the present invention will now be explained with reference to the drawings.
A substantially rectangular outer casing 10 comprises a lower casing 10a open at its bottom and an upper casing 10b detachably connected to the top end of the lower casing 10a. The upper casing 10b houses a roaster 20, while the lower casing 10a houses a milling/ extracting unit 30, a blower 40 for blowing cooling air into the milling/extracting unit 30, a pouring unit 50 for pouring very hot water onto ground coffee in the milling/extracting unit 30, and a coffee server 60 for receiving coffee solution filtered from ground coffee in the milling/extracting unit 30. An operation panel 70 is fixed to the front wall of the lower panel 10a, and a smoke-removing/deodorizing unit 80 is provided in the top wall of the upper casing 10b.
The roaster 20 is adapted to rotate unroasted coffee beans contained therein and comprises a cylindrical container 21, a ring-shaped far-infrared heater 22 mounted in the upper portion of the container 21, and stirring blades 23 rotatable along the inner bottom wall of the container 21. Each of the stirring blades 23 is formed of an elastic coiled bar, the blades being connected to nut 24 such that they extend radially outward therefrom. The nut 24 comprises a cylindrical nut body and a shield member 25 formed on the top of the nut body and having the shape of a cylindrical segment extending perpendicularly outward from the nut body, so that the nut 24 has a T-shaped longitudinal cross section. A first rotary shaft 27a extends perpendicularly through the base wall of the upper casing 10b, and its upper end is screwed into an inner portion of the nut body. An intermediate portion of the first rotary shaft 27a
REFERENCES:
patent: 4510853 (1985-04-01), Takagi
patent: 4706555 (1987-11-01), Nakamura
Jenkins Robert W.
Kazuo Enomoto
Nichimen Corporation
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