US3841838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifuge cups for automatic chemical analyzer
Assignee: Rohe Scientific Corp
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Filing: 1972-11-03
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Granted: 1974-10-15
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Expires: 1992-11-03
Abstract
Abstract A hollow container for centrifuging purposes, having at its top a generally tubular vertical neck for the addition of material to the container or removal of material therefrom, having below said neck an annular chamber of frusto-conical cross section formed of a first wall, coaxial with said neck and a second wall inwards of and substantially parallel to said first wall and having a diameter substantially greater than the maximum diameter of the neck and communicating with the neck, said annular chamber being adapted to receive and retain the heavier ingredients of such material upon high speed rotation of the container on its axis, the lighter ingredients taking a position inwardly therefrom in the container and generally aligned with said neck upon cessation of said rotation, and a plurality of baffles disposed at intervals in said side chamber extending partially between said walls so as to permit even distribution of the sediment on centrifuging, but preventing remixing of the sediment on decelerating.
Inventors
- 👤 S Natelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:30
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/502; B01L3/5021; B04; B04B; B04B5/00; B04B5/04; B04B5/0407; G; G01; G01N; G01N15/00; G01N15/04; G01N15/042; G01N35/00; G01N35/02; G01N35/021; B04B11/00; B04B11/04; B04B2011/046; G01N2035/00465; G01N2035/00495; G01N35/04; G01N2035/046; G01N2035/0465; G01N35/10; G01N35/1004; G01N35/1081; G01N35/1083
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
183 words
IN A CONTAINER FOR USED IN AN AUTOMATED CENTIRIFUGE ARRANGEMENT WHEREBY SAID CONTAINER MAY BE ROTATED ON ITS SUBSTANTIALLY VERTICAL AXIS SO AS TO SEPARATE MATERIALS OF DIFFERENT DENSITY, SAID CONTAINER HAVING A FLANGED NECK FORMING A CYLINDER AROUND SAID VERTICAL AXIS, SUITABLE FOR INSERTION OF A STOPPER, AN UPPER OUTER WALL CONTINUOUS WITH SAID NECK AT THE LOWER END OF THE CYLINDER, SAID UPPER WALL MAKING AN ANGLE GREATER THAN 90 DEGREE BUT LESS THAN 180 DEGREE WITH SAID CYLINDER, SAID UPPER WALL HAVING A SECTION MEETING THE CONTINUOUS WITH A LOWER INNER WALL SO THAT SAID CONTAINER IS FORMED WITH A SIDE CHAMBER BETWEEN PORTIONS OF SAID OUTER AND INNER WALL AT LEAST PARTIALLY SURROUNDING SAID CENTRAL AXIS, THE IMPROVEMENT THEREIN COMPRISING, A PLURALITY OF BATTLES ATTACHED TO ONE WALL OF SAID OUTER OR INNER WALLS, SAID BAFFLES BEING DISPOSED AT INTERVALS IN SAID SIDE CHAMBER SO AS TO PERMIT TIALLY BETWEEM THE WALLS OF SAID SIDE CHAMBER SO AS TO PERMIT PASSAGE OF AND EVEN DISTRUBTION OF THE SEDIMENT ON CENTRIFUGING BUT TO PREVENT REMIXING OF THE SEDIMENT ON DECELERATING
Claim 2
Dependent Claim
183 words
IN A CONTAINER FOR USED IN AN AUTOMATED CENTIRIFUGE ARRANGEMENT WHEREBY SAID CONTAINER MAY BE ROTATED ON ITS SUBSTANTIALLY VERTICAL AXIS SO AS TO SEPARATE MATERIALS OF DIFFERENT DENSITY, SAID CONTAINER HAVING A FLANGED NECK FORMING A CYLINDER AROUND SAID VERTICAL AXIS, SUITABLE FOR INSERTION OF A STOPPER, AN UPPER OUTER WALL CONTINUOUS WITH SAID NECK AT THE LOWER END OF THE CYLINDER, SAID UPPER WALL MAKING AN ANGLE GREATER THAN 90 DEGREE BUT LESS THAN 180 DEGREE WITH SAID CYLINDER, SAID UPPER WALL HAVING A SECTION MEETING THE CONTINUOUS WITH A LOWER INNER WALL SO THAT SAID CONTAINER IS FORMED WITH A SIDE CHAMBER BETWEEN PORTIONS OF SAID OUTER AND INNER WALL AT LEAST PARTIALLY SURROUNDING SAID CENTRAL AXIS, THE IMPROVEMENT THEREIN COMPRISING, A PLURALITY OF BATTLES ATTACHED TO ONE WALL OF SAID OUTER OR INNER WALLS, SAID BAFFLES BEING DISPOSED AT INTERVALS IN SAID SIDE CHAMBER SO AS TO PERMIT TIALLY BETWEEM THE WALLS OF SAID SIDE CHAMBER SO AS TO PERMIT PASSAGE OF AND EVEN DISTRUBTION OF THE SEDIMENT ON CENTRIFUGING BUT TO PREVENT REMIXING OF THE SEDIMENT ON DECELERATING
Claim 3
Dependent Claim
12 words
A container as claimed in claim 1 wherein said baffles are vertical.
Claim 4
Dependent Claim
12 words
A container as claimed in claim 1 wherein said baffles are horiZontal.
Claim 5
Dependent Claim
16 words
A container as claimed in claim 2 wherein said baffles are attached to said outer wall.
Claim 6
Dependent Claim
21 words
A container as claimed in claim 2 wherein at least over one-half of said baffles are attached to the outer wall.
Claim 7
Dependent Claim
16 words
A container as claimed in claim 5 wherein said baffles are defined by a scalloped wall.
Claim 8
Dependent Claim
15 words
A container as claimed in claim 5 wherein said baffles are defined by scalloped walls.
Claim 9
Dependent Claim
18 words
A container as claimed in claim 4 wherein said baffles are vertical partitions extending partly between the walls.
Claim 10
Dependent Claim
18 words
A container as claimed in claim 5 wherein said baffles are vertical partitions extending partly between the walls.
Claim 11
Dependent Claim
179 words
A hollow container for centrifuging purposes, having at its top a generally tubular vertical neck for the addition of material to the container or removal of material therefrom, having below said neck an annular chamber of frustoconical cross section formed of a first wall, coaxial with said neck and a second wall inwards of and substantially parallel to said first wall and having a diameter substantially greater than the maximum diameter of the neck and communicating with the neck, said annular chamber being adapted to receive and retain the heavier ingredients of such material upon high speed rotation of the container on its axis, the lighter ingredients taking a position inwardly therefrom in the container and generally aligned with said neck upon cessation of said rotation, and a plurality of baffles attached to one wall of said first or second walls, said baffles being disposed at intervals in said side chamber and extending partially between said walls so as to permit passage of and even distribution of the sediment on centrifuging, but preventing premixing of the sediment on decelerating.
Claim 12
Dependent Claim
179 words
A hollow container for centrifuging purposes, having at its top a generally tubular vertical neck for the addition of material to the container or removal of material therefrom, having below said neck an annular chamber of frustoconical cross section formed of a first wall, coaxial with said neck and a second wall inwards of and substantially parallel to said first wall and having a diameter substantially greater than the maximum diameter of the neck and communicating with the neck, said annular chamber being adapted to receive and retain the heavier ingredients of such material upon high speed rotation of the container on its axis, the lighter ingredients taking a position inwardly therefrom in the container and generally aligned with said neck upon cessation of said rotation, and a plurality of baffles attached to one wall of said first or second walls, said baffles being disposed at intervals in said side chamber and extending partially between said walls so as to permit passage of and even distribution of the sediment on centrifuging, but preventing premixing of the sediment on decelerating.
Claim 13
Dependent Claim
12 words
A container as claimed in claim 10 wherein said baffles are vertical.
Claim 14
Dependent Claim
12 words
A container as claimed in claim 10 wherein said baffles are horizontal.
Claim 15
Dependent Claim
16 words
A container as claimed in claim 11, wherein said baffles are attached to said outer wall.
Claim 16
Dependent Claim
21 words
A container as claimed in claim 11 wherein at least over one-half of said baffles are attached to the outer wall.
Claim 17
Dependent Claim
16 words
A container as claimed in claim 13 wherein said baffles are defined by a scalloped wall.
Claim 18
Dependent Claim
15 words
A container as claimed in claim 14 wherein said baffles are defined by scalloped walls.
Claim 19
Dependent Claim
13 words
A container as claimed in claim 13, wherein said baffles are vertical partitions.
Claim 20
Dependent Claim
13 words
A container as claimed in claim 14, wherein said baffles are vertical partitions.
Claim 21
Dependent Claim
15 words
A container as claimed in claim 10, wherein said baffles are of a spiral arrangement.
References Cited (Backward Citations)
US2883103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |