Agitating – Stirrer within stationary mixing chamber – Rotatable stirrer
Patent
1993-12-27
1995-10-17
Jenkins, Robert W.
Agitating
Stirrer within stationary mixing chamber
Rotatable stirrer
241 69, 241283, 366333, 425197, 425209, B01F 702, B02C 1300
Patent
active
054584175
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a kitchen appliance for processing food by chopping, mixing, stirring, kneading, pressing etc. or for producing emulsions of food with a processing tool driven by a motor and having a respective working chamber.
A kitchen appliance of the aforementioned kind is known as a conventional food processor. Such food processors have commonly adapters for respective tools which are inserted for a working process into a working chamber of a separate vessel. As a universal tool for the commonly performed processing operations for food a two-blade knife is used that is rotated at high speeds.
The food processors of the aforementioned kind have a couple of disadvantages. For example, with the known food processors a uniform size reduction of food can only be achieved to a certain extent because the reduction tools are rotated stationarily about an axle and operate only in one cutting plane. Accordingly, the food to be cut which is directly adjacent to the knife is reduced in size to a much greater extent than the food to be cut which is conveyed to the cutting tool by mixing. The desired mixing in known food processors is based on friction and centrifugal forces which due to the fast rotating cutting tool are generated within the food to be cut. The tackiness and smearing especially of fat-containing foods or oily substances resulting from the frictional heat prevent a sufficient mixing and thus a uniform size reduction. A further disadvantage is that the known food processors can perform only one processing step whereby in addition the amount of food to be processed is relatively small. Furthermore, with conventional food processors an emulsion can be produced only to a limited extent, and also the cleaning of such food processors is cumbersome and time-consuming.
It is an object of the invention to provide a kitchen appliance which with a simple attachment of its different tools allows for different processing operations with varying processing requirements for the food.
SUMMARY OF THE INVENTION
The kitchen appliance for processing food by chopping, mixing, whipping, kneading, pressing, and preparing emulsions from food according to the present invention is primarily characterized by: positioned cylindrical vessel; an inner diameter of the vessel; vessel over an axial length of the vessel, the advancing unit comprising a stationary spindle and a slide connected to the spindle so as to be slidable on the spindle in the axial direction of the vessel, the advancing unit further comprising an electric motor for axially displacing the slide on the spindle; and
Advantageously, the vessel has a rear wall with a throughbore through which the drive shaft extends. The throughbore has a seal for sealing the drive shaft within the throughbore. The tool is connected to a free end of a portion of the drive shaft extending into the interior of the vessel.
Preferably, a plurality of the tools that are arranged adjacent to one another on the portion of the drive shaft extending into the exterior of the vessel are provided.
The vessel has a forward wall in the form of a discharge funnel. The forward wall has an inner fitting for receiving a processing disk.
The processing disk may be a closure plate or a perforated disk. The processing disk may have at least one opening for shaping the food.
The forward wall may also have a discharge screw.
Preferably, the vessel has a cylindrical wall, with an upper portion of the cylindrical wall being a pivotable closure extending over the axial length of the vessel. The closure has a lock and a seal for tightly sealing the closure of the cylindrical wall.
Expediently, the cylindrical wall of the vessel has a cooling device connected thereto.
The tool may be a knife having a plurality of knife blades that are staggered in an axial direction of the drive shaft in different cutting planes.
In an another embodiment of the present invention, the tool is a paddle blade mixer with two oppositely arranged paddle blades.
The tool may also be an emul
REFERENCES:
patent: 2483472 (1949-10-01), Matarrese
patent: 3186020 (1965-06-01), Redfield
patent: 4146333 (1979-03-01), Zani
patent: 5150967 (1992-09-01), Neilson
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