EP0360767A1
Expired / Lapsed
EP
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Magnetic drive stirring unit
Assignee: Cora Di Lardieri Salvatore
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Filing: 1989-09-21
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Granted: —
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Expires: 2009-09-21
Abstract
Abstract A unit for stirring liquid or loose solid products by means of magnetic drive without mechanical seals and with friction bearing means. The unit comprises a driving device (6) outside a container (14) and an inner stirring element (18) which are coaxial and magnetically coupled. The stirring element (8) is pivotally mounted through said friction bearing means, on a support (10) extending from a plate (1) which is connected to the bottom of the container by flanges (1a, 15) and rapid lock connections (17). In this way a very reliable seal is assured between the container and the stirring unit as far as both the product contamination and the environment pollution are concerned. Furthermore, the unit can be easily and quickly mounted to the container and doesn't give maintenance problems.
Inventors
- 👤 Salvatore Lardieri
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 02:52
CPC Classifications
B; B01; B01F; B01F33/00; B01F33/45; B01F33/453; B01F33/4535; B01F35/00; B01F35/10; B01F35/40; B01F35/41; B01F35/411; B01F35/4112
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
106 words
A magnetic drive stirring unit comprising a stirring element (8) inside a vessel (14) containing a fluid to be mixed and a driving unit (4), outside said vessel (14) magnetically coupled to said stirring element (8), characterized in that it comprises a flanged plate (1) seal mountable in correspondence of an opening (13) formed in the bottom of said vessel, from said flanged plate centrally extending a tubular casing (2) to which said stirring element (8) is pivotally connected, said drive unit being housed within said tubular casing (2) coaxially with said stirring element (8) and said vessel, and being supported by said flanged plate (1).
Claim 2
Dependent Claim
106 words
A magnetic drive stirring unit comprising a stirring element (8) inside a vessel (14) containing a fluid to be mixed and a driving unit (4), outside said vessel (14) magnetically coupled to said stirring element (8), characterized in that it comprises a flanged plate (1) seal mountable in correspondence of an opening (13) formed in the bottom of said vessel, from said flanged plate centrally extending a tubular casing (2) to which said stirring element (8) is pivotally connected, said drive unit being housed within said tubular casing (2) coaxially with said stirring element (8) and said vessel, and being supported by said flanged plate (1).
Claim 3
Dependent Claim
27 words
A stirring unit according to claim 1 wherein friction bearing means are provided between a support (10) of said stirring element (8) and said tubular casing (2).
Claim 4
Dependent Claim
29 words
A stirring unit according to claim 2 wherein the support (10) of said stirring element (8) is an annular body (10) mounted for rotation around said tubular casing (2).
Claim 5
Dependent Claim
39 words
A stirring unit according to claims 1 and 2 wherein said support (10) of said stirring element (8) is a substantially bell-shaped body (23) coaxially arranged around said tubular casing (2), said friction bearing means being interposed between them.
Claim 6
Dependent Claim
30 words
A stirring unit according to claim 4, wherein said bell-shaped body (23) comprises support means (24) for securing said stirring element (8) to the outer face of its bottom plate.
Claim 7
Dependent Claim
30 words
A stirring unit according to the previous claims wherein said flanged plate (1) is fixable to a corresponding counterflange (15) of the vessel (14) by a rapid lock connection (17).
Claim 8
Dependent Claim
32 words
A stirring unit according to the previous claims wherein two tapered converging surfaces are formed on said flanged plate (1) and said counterflange (15) for engaging with said rapid lock connection (17).
Claim 9
Dependent Claim
33 words
A stirring unit according to the previous claims wherein a large conic hollow (20), from which extends a through drainage hole (18), is formed on the internal surface of said flanged plate (1).
Claim 10
Dependent Claim
29 words
A stirring unit according to the previous claims wherein said flanged plate (1) is equipped with an actuator device for lifting, lowering and transferring it during the maintenance operations.
Claim 11
Dependent Claim
43 words
A stirring unit according to claim 9, wherein said actuator device comprises a mobile base (25), first tubular rods (27) vertically extending from it, second tubular rods (28) extending from said flanged plate (1) and telescopically connected to said first tubular rods (27).
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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