US3813082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined mixer, kneader and presser particularly for food processing
Assignee: Buehler AG
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Filing: 1972-11-14
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Granted: 1974-05-28
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Expires: 1992-11-14
Abstract
Abstract A combined mixer, kneader and presser for materials particularly for foods such as pasta comprises a housing having a wide diameter mixing portion, a small diameter pressing portion and an intermediate conical kneading portion connected between the mixing portion and the pressing portion. An inlet for the materials to be treated is connected into the mixing portion and the pressing portion has a free end with a discharge which receives a head carrying a press mold through which the material is directed. A driving motor has a driving transmission connected to the free end of the mixing portion of the housing and a single shaft extends through the housing and is connected to the driving transmission and is rotated thereby. The shaft includes a mixing portion having radially extending arms which rotate in the mixing portion of the housing, a kneading portion with a conical core and a kneading screw and a smaller diamter cylindrical pressing portion with a press screw which rotates in the pressing portion of the housing. The pressing portion advantageously comprises a separate shaft element which is received in the hollow interior of the portion making up the mixing shaft and the kneading portion of the shaft. The housing is formed with a door either at the drive end of the mixing portion or at the opposite end adjacent the intermediate conical kneading portion. The door includes a fixed part which is connected to the drive and a movable hinge part which may be swung outwardly from the fixed part. In the one embodiment the swinging part includes all of the housing parts which may be swung openly from a fixed mounting of the housing adjacent the drive end. In the other embodiment the swingable parts include the conical intermediate portion and the pressing portion of the housing. When the door is swung open the individual housing parts are accessible for cleaning and repair.
Inventors
- 👤 J Manser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:36
CPC Classifications
A; A21; A21C; A21C1/00; A21C1/06; A23; A23N; A23N17/00; A23N17/005; B; B30; B30B; B30B11/00; B30B11/22; B30B11/24
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
204 words
A combined mixer, kneader and presser for materials particularly for forming foods such as pasta, comprising a housing having a wide diameter mixing portion, a small diameter pressing portion and an intermediate kneading portion connected between said mixing portion and said pressing portion, said mixing portion having an inlet for materials to be treated, said pressing portion having a free end opposite to said kneading portion with a discharge for the material, drive means connected to said housing adjacent said mixing portion of said housing, at least one shaft connected to said drive means and rotated thereby and extending axially through said housing, said shaft having a mixing portion with arm means rotatable in said mixing portion of said housing, a kneading portion rotatable in said kneading portion of said housing and a pressing portion rotatable in said pressing portion of said housing, said housing having a door formation adjacent at least one end of saiD mixing portion thereof comprising a hinge connection including a portion fixed in respect to said drive means and a portion which may be swung outwardly to one side of said fixed portion to facilitate access to the interior of said housing for removal and cleaning of said shaft.
Claim 2
Dependent Claim
204 words
A combined mixer, kneader and presser for materials particularly for forming foods such as pasta, comprising a housing having a wide diameter mixing portion, a small diameter pressing portion and an intermediate kneading portion connected between said mixing portion and said pressing portion, said mixing portion having an inlet for materials to be treated, said pressing portion having a free end opposite to said kneading portion with a discharge for the material, drive means connected to said housing adjacent said mixing portion of said housing, at least one shaft connected to said drive means and rotated thereby and extending axially through said housing, said shaft having a mixing portion with arm means rotatable in said mixing portion of said housing, a kneading portion rotatable in said kneading portion of said housing and a pressing portion rotatable in said pressing portion of said housing, said housing having a door formation adjacent at least one end of saiD mixing portion thereof comprising a hinge connection including a portion fixed in respect to said drive means and a portion which may be swung outwardly to one side of said fixed portion to facilitate access to the interior of said housing for removal and cleaning of said shaft.
Claim 3
Dependent Claim
58 words
A combined mixer, kneader and presser according to claim 1, wherein said shaft kneading portion comprises a conically shaped core having a widened end in said mixing portion of said housing and an inwardly tapered smaller diameter end connected to said shaft pressing portion and a spirally progressing screw formation extending outwardly from the surface of said core.
Claim 4
Dependent Claim
25 words
A combined mixer, kneader and presser according to claim 1, wherein said shaft kneading portion is tapered in the direction of movement of the material.
Claim 5
Dependent Claim
40 words
A combined mixer, kneader and presser according to claim 1, wherein said mixing portion of said housing is sealed in respect to the outside so that it may be maintained at a pressure which is distinct from the surrounding atmosphere.
Claim 6
Dependent Claim
51 words
A combined mixer, kneader and presser according to claim 1, including a material feed line connected to said inlet, a high speed mixer arranged in said feed line and including a driving motor, and a rotatable shaft driven by said motor in said mixer having arm means for mixing material therein.
Claim 7
Dependent Claim
28 words
A combined mixer, kneader and presser according to claim 1, including a pump connected to said mixing portion of said housing for regulating the pressure within said housing.
Claim 8
Dependent Claim
27 words
A combined mixer, kneader and presser according to claim 1, including means associated with said housing for selectively and alternatively heating and cooling portions of said housing.
Claim 9
Dependent Claim
56 words
A combined mixer, kneader and presser according to claim 1, including a feed line connected into said inlet, a dosing lock connected to said feed line through which the material is passed including a rotatable vane element therein, and means for rotating said vane to provide a regulated feed to said mixing portion of said housing.
Claim 10
Dependent Claim
56 words
A combined mixer, kneader and presser according to claim 1, including a mounting base for supporting said housing, said fixed portion of said housing being secured to said mounting base and including said drive means, said drive means comprising a transmission connected to said shaft and a motor connected to said transmission to drive said shaft.
Claim 11
Dependent Claim
46 words
A combined mixer, kneader and presser according to claim 1, wherein said kneading portion of said shaft comprises a frustroconical core portion with an outwardly extending progressing screw thread which is spaced inwardly from the interior wall of said intermediate conical kneading portion of said housing.
Claim 12
Dependent Claim
38 words
A combined mixer, kneader and presser according to claim 10, wherein said inlet is connected centrally between said mixing portion and said additional mixing portion of said housing and comprises the only feed for both of said portion.
Claim 13
Dependent Claim
54 words
A combined mixer, kneader and presser according to claim 1, wherein there is said at least one shaft comprises a pair of parallelly arranged laterally spaced shafts, said housing including a substantially identical additional mixing chamber portion, intermediate portion and pressing portion arranged in parallel relationship with the mixing chamber portions being interconnected centrally.
Claim 14
Dependent Claim
41 words
A combined mixer, kneader and presser according to claim 11, wherein said feed opening for said mixing portions for said housing is arranged centrally between said mixing portion and said additional mixing portion and extends substantially perpendicular to the axes thereof.
Claim 15
Dependent Claim
61 words
A combined mixer, kneader and presser according to claim 1, wherein said shaft presser portion comprises a rotatable press screw and an extension within a hollow portion of said kneading portion and said mixing portion of said shaft, said pressing portion of said shaft having means at the end of said extensive portion for coupling said shaft to said drive means.
Claim 16
Dependent Claim
51 words
A combiNed mixer, kneader and presser according to claim 1, wherein said pressing portion of said housing comprises at least two separate longitudinally extending portions which are hinged together and which may arranged in longitudinally extending axial alignment or broken apart and pivoted about the hinge portion to open them up.
Claim 17
Dependent Claim
28 words
A combined mixer, kneader and presser according to claim 1, wherein said housing door formation is located between said mixing portion of said housing and said drive means.
Claim 18
Dependent Claim
31 words
A combined mixer, kneader and presser according to claim 1, wherein said housing door formation is located between said mixing portion of said housing and said intermediate portion of said housing.
Claim 19
Dependent Claim
81 words
A combined mixer, kneader and presser according to claim 1, wherein said kneading portion and said mixing portion of said shaft comprise a single hollow piece, said pressing portion of said shaft comprising a press screw formation rotatable in said housing pressing portion and an extension extending through the hollow portion of said kneading portion and said mixing portion of said shaft and means for coupling said mixing portion and said kneading portion and said pressing portion to said drive means.
Claim 20
Dependent Claim
39 words
A combined mixer, kneader and presser according to claim 18, wherein said coupling means comprises a squared end of said presser shaft, said drive means including a recess squared end engagable with said squared end of said presser shaft.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |