Patent US3899159A successfully refreshed from Google Patents.
US3899159A
Expired / Lapsed
US
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Device for treating substances consisting of at least one vessel and one or more stirring members in each vessel
Assignee: Nautamix Patent AG
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Filing: 1974-06-10
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Granted: 1975-08-12
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Expires: 1994-06-10
Abstract
Abstract A device for treating e.g. mixing of different substances comprising a vessel with a vertical axis of symmetry, at least one stirring member provided in said vessel, means provided to support the upper end of the or each stirring member, whereas drive means are provided for rotating the or each stirring member about its own axis and simultaneously about the vertical axis of symmetry of the vessel, a combined system consisting of an injection pipe and at least one pair of stirring members provided in a portion of the bottom of the vessel beyond the reach of the or each stirring member.
Inventors
- 👤 Constant Johan Nauta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:51
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/80; B01F27/95; B01F27/951; B01F35/00; B01F35/71; B01F35/712; B01F35/717; B01F35/7179; B01F27/05; B01F27/11; B01F27/114; B01F27/1144; B01F27/23; B01F27/232; B01F27/2321; B01F27/2324
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
190 words
Device for treating substances e.g. mixing granular, pulverulent or pasty substances and/or liquids, comprising a vessel with a vertical axis of symmetry, at least one stirring member in said vessel, said member being situated at its upper and bottom end eccentrically in said vessel, at least said upper end being supported in the free end of a member with opposite end rotatably supported in the vertical axis of symmetry of said vessel, means for rotating each stirring member about its own axis and simultaneously about the vertical axis of symmetry of said vessel, at least one combined system for locally producing a vortex motion in the surrounding substances to be treated and injecting at the same time a substance into said surrounding substances, arranged in that portion of the bottom of the vessel beyond the reach of said stirring member, said combined system comprising an injeCtion pipe rotatably supported in the bottom of the vessel and provided with at least one longitudinal channel closed at its upper end, at least one spray member opening into said vessel, and at least one pair of stirring members provided on said injection pipe.
Claim 2
Dependent Claim
190 words
Device for treating substances e.g. mixing granular, pulverulent or pasty substances and/or liquids, comprising a vessel with a vertical axis of symmetry, at least one stirring member in said vessel, said member being situated at its upper and bottom end eccentrically in said vessel, at least said upper end being supported in the free end of a member with opposite end rotatably supported in the vertical axis of symmetry of said vessel, means for rotating each stirring member about its own axis and simultaneously about the vertical axis of symmetry of said vessel, at least one combined system for locally producing a vortex motion in the surrounding substances to be treated and injecting at the same time a substance into said surrounding substances, arranged in that portion of the bottom of the vessel beyond the reach of said stirring member, said combined system comprising an injeCtion pipe rotatably supported in the bottom of the vessel and provided with at least one longitudinal channel closed at its upper end, at least one spray member opening into said vessel, and at least one pair of stirring members provided on said injection pipe.
Claim 3
Dependent Claim
42 words
Device according to claim 1, wherein seen from the closed upper end of the injection pipe downwards one below the other are arranged a pair of stirring members, a spray member, a second pair of stirring members and a second spray member.
Claim 4
Dependent Claim
45 words
Device according to claim 2, wherein the openings of the upper spray member are directed substantially perpendicular to the longitudinal direction of the injection pipe, the openings of the lower spray member being directed upwardly with respect to said longitudinal direction of the injection pipe.
Claim 5
Dependent Claim
18 words
Device according to claim 2, including for each spray member a separate feed channel in the injection pipe.
Claim 6
Dependent Claim
36 words
Device according to claim 1 wherein said stirring member and said spray member are adjustable in longitudinal direction of the injection pipe means provided for securing the members in any fixed position on the injection pipe.
Claim 7
Dependent Claim
19 words
Device according to claim 1, wherein said stirring member comprises an elongated member provided with a bent free end.
Claim 8
Dependent Claim
54 words
Device according to claim 6, wherein a pair of stirring members are arranged on a head supported in the wall of the injection pipe so that it can be rotated as well as fixed against rotation, the bent free end of each stirring member being adjustable over 360* with respect to the horizontal plane.
Claim 9
Dependent Claim
43 words
Device according to claim 1 including means substantially in the vicinity of the bottom of the vessel for fluidisation of the substances in the vessel by means of a gas, said substances moving in the room in the lower portion of said vessel.
Claim 10
Dependent Claim
49 words
Device according to claim 8, wherein said means in the bottom of the vessel comprises an air seal having a downwardly directed outlet slit, said seal being arranged between the bottom of the vessel and the bottom side of the combined system the bottom of the vessel being cone-shaped.
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) | 1978-08-11 | 1979-02-10 | 1979-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-11 | 1983-02-10 | 1983-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-11 | 1987-02-10 | 1987-08-12 | $7700.00 | Window Closed / Lapsed |