Foods and beverages: apparatus – Beverage – With gas treating means
Patent
1991-08-23
1993-11-30
Hornsby, Harvey C.
Foods and beverages: apparatus
Beverage
With gas treating means
99293, 141100, 2221291, 261DIG76, 366177, A47J 3140
Patent
active
052655202
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to an automatic machine for dispensing black coffee, white coffee, and the like, according to the preamble of the main claim.
BACKGROUND ART
As is known, such machines leave much to be desired as regards convenience of operation, where they are used for preparing "cappuccino" white coffee. In fact, they require the intervention of an operator in order to have emulsified milk added to the coffee previously delivered into a cup, and provide the desired "cappuccino" white coffee. This evidently involves a waste of time. EP-A-195750 discloses an emulsifier device for emulsifying steam and milk.
The problem that underlies this invention is to provide a machine as specified above, which has such structural and performance characteristics as to overcome the above-noted shortcoming.
DISCLOSURE OF INVENTION
This problem is solved by a machine according to the characterizing clause of the main claim.
BRIEF DESCRIPTION OF DRAWINGS
Further features and the advantages of a machine according to this invention will become more clearly apparent from the following detailed description of a preferred embodiment thereof, given by way of illustration and not of limitation with reference to the accompanying drawings, where:
FIG. 1 is a perspective view of a machine according to the invention,
FIG. 2 is an enlarged scale cross-sectional view of a detail of the machine shown in FIG. 1, taken along the line,
FIG. 3 is a cross-sectional view of the detail in FIG. 2, taken along the line III--III, and
FIG. 4 shows the same detail as in FIG. 2 but at a different operational stage thereof.
BEST MODE FOR CARRYING OUT THE INVENTION
With reference to the drawing views, generally indicated at 1 is an automatic machine for dispensing black coffee, white coffee, and the like.
The machine 1 comprises, within a frame structure 2, a dispensing device 3 for dispensing coffee, which has a delivery spout 4 for delivering coffee, said spout 4 overhanging a supporting deck 5 on which a cup or the like can be laid.
The machine 1 also comprises, within the frame structure 2, a milk dispensing device 6.
The milk dispensing device 6 includes a steam generator 7 and an emulsifier device 8.
In the example shown, the emulsifier device 8 includes an emulsifying chamber 9 provided with a delivery spout 10 and being communicated with an intake chamber 12 via a conduit 11.
The intake chamber 12 is communicated, via a conduit 13, with the steam generator 7, and via a conduit 14 with an ambient air intake 15 and via a conduit 16 with a milk container 17, which may be a milk carton, housed within a bin 18 formed on the frame structure 2.
The emulsifier device 8 is supported on the frame structure 2 such that the delivery spout 10 is facing the aforesaid deck 5 substantially alongside delivery spout 4. In other words, the delivery spouts, 4 and 10, are mounted on the frame structure 2 in side-by-side relationship, thereby enabling them to deliver coffee and milk, respectively, into one cup placed on the deck 5.
A throttling member 19 is arranged in the air conduit 14 for controlling the flow rate of ambient air, the conduit being also provided with a shutter member 20 operable to cut off the air flow.
The milk conduit 16 has a throttling member 21 for reducing the flow rate of milk as required.
The shutter member 20 and throttling member 21 can be controlled manually by operation of a common control knob 22.
In a preferred embodiment, the emulsifier device 8 comprises a body 23 which is intended for attachment to the end of the steam conduit 13 cantilever-fashion.
The body 23 is formed with a steam supply passageway 24 which extends between an inlet port 25 connected to the steam conduit 13 and an outlet nozzle 26 wherethrough it opens into the intake chamber 12.
An end section of the steam supply passageway 24 runs through a diffuser 27 being a force fit in the body 23 and having gradually decreasing flow cross-section toward the outlet nozzle 26, which will function as an ejector nozzle.
The milk conduit 16 a
REFERENCES:
patent: 1800368 (1931-04-01), Tomlinson
patent: 4245680 (1981-01-01), Greenfield, Jr. et al.
patent: 4800805 (1989-01-01), Mahlich et al.
patent: 4852474 (1989-08-01), Mahlich et al.
patent: 4945824 (1990-08-01), Borgmann
Hornsby Harvey C.
Nuova Faema S.p.A.
Spisich Mark
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