EP0612565A1 - Rotor pour centrifugeuse à godets pivotants - Google Patents

Rotor pour centrifugeuse à godets pivotants Download PDF

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Publication number
EP0612565A1
EP0612565A1 EP94101355A EP94101355A EP0612565A1 EP 0612565 A1 EP0612565 A1 EP 0612565A1 EP 94101355 A EP94101355 A EP 94101355A EP 94101355 A EP94101355 A EP 94101355A EP 0612565 A1 EP0612565 A1 EP 0612565A1
Authority
EP
European Patent Office
Prior art keywords
rotor
leg
swivel
swivel cup
rotor according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP94101355A
Other languages
German (de)
English (en)
Other versions
EP0612565B1 (fr
Inventor
Günter Eberle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Andreas Hettich GmbH
Original Assignee
Andreas Hettich GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Andreas Hettich GmbH and Co KG filed Critical Andreas Hettich GmbH and Co KG
Publication of EP0612565A1 publication Critical patent/EP0612565A1/fr
Application granted granted Critical
Publication of EP0612565B1 publication Critical patent/EP0612565B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B5/00—Other centrifuges
    • B04B5/04—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers
    • B04B5/0407—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles
    • B04B5/0414—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles comprising test tubes
    • B04B5/0421—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles comprising test tubes pivotably mounted

Definitions

  • the invention relates to a rotor for a swivel cup centrifuge according to the preamble of patent claim 1.
  • Such a rotor has become known from DE 89 03 511 U1, which goes back to the same applicant.
  • the swivel cups are designed as sample tubes so that they are filled directly with a sample liquid and, moreover, consist of plastic.
  • Radially front and rear recesses lying one behind the other in the radial direction are incorporated in the rotor, which is essentially designed as a horizontal disk, and are intended to enable the swivel cup to pivot into these recesses when the swivel cup swings out.
  • the known swivel cups When swinging out, the known swivel cups rest with their bottom regions on a circumferential, radially outer flange of the rotor, the handle-like legs serving as swivel bearings, which engage in the associated recesses in the disk, no longer being supposed to have a load-transmitting effect.
  • the known rotor therefore had the advantage that relatively inexpensive sample vessels could be used, which could be hooked into the rotor with their handle-like, free legs without any additional aids.
  • the invention is therefore based on the object of developing a rotor of the type mentioned in such a way that the rotor itself can be of simple construction and nevertheless high centrifugal forces can be transmitted from the swivel cups to the rotor.
  • the invention is characterized by the technical teaching of claim 1.
  • the rotor is now essentially in the form of a disk which bears a series of slots distributed in the circumferential direction. There is now no need to provide a load-transmitting, radial, cranked flange on the outer circumference of the rotor, which absorbs the centrifugal force of the swivel cup, as was required in DE 89 03 511 U1.
  • the centrifugal force which is exerted on the swivel cups is transmitted directly from the swivel cups to the support part assigned to each swivel cup, which support part essentially consists of an annular metal part which is embedded in the sleeve of the swivel cup, with this ring part - preferably made of one piece of material - at least one leg is formed, with which this carrier part engages through the slot in the rotor and is pivotably mounted there.
  • the legs are preferably inclined and are dimensioned (length, width and thickness, as well as angular position to the longitudinal axis of the sleeve of the swivel cup), that in a first preferred embodiment there is an approximate weight compensation for the swivel cup when the target speed of the rotor is reached.
  • the length of the leg is chosen so that the free lower end of the leg approximately ends with the bottom region of the sleeve of the swivel cup, so that the swivel cup can be set up freely on an installation level and the leg thus serves as a supporting foot.
  • the leg is bent, preferably an approximately Z-shaped shape is preferred, so that the free, bent end of the leg rests on certain stop surfaces of the disk-shaped rotor when the swivel cup swings out.
  • the leg is bent so that in the rest position of the hanger, i.e. when the rotor is at a standstill, the free outer end of the leg bears against the rotor head so as to define the pivoting position of the swivel cup when the rotor is at a standstill.
  • the rotor 1 according to Figures 1 and 2 consists essentially of a disc 2, which is preferably made of a high-strength, rustproof metal material, for. B. consists of a nickel-chromium alloy.
  • the disk 2 is connected via screws 5 to a rotor head 4, which is connected to the drive shaft of a drive motor, not shown, via the fastening means shown.
  • the disc 2 is provided with a central recess 3, through which parts of the rotor head 4 pass.
  • slots 9 are worked into the disk 2 evenly distributed on the circumference of the rotor, the radially outer edges 10 of the slots 9 preferably being machined, for example having a round profile, around a pivot bearing for the swinging-out carrier parts 11 of the pivot cups 6 form.
  • Each swivel cup 6 consists of a sleeve 7, which preferably consists of a plastic material, in the upper, collar-shaped, enlarged edge of which the carrier part 11 is embedded.
  • the carrier part 11 consists of a ring 14 made of a high-strength metal material, on which a part 13 is integrally formed, which merges into a leg 12 bent downwards over a bending edge.
  • the parts 12, 13, 14 preferably consist of a material which is integrally connected to one another.
  • a rib 15 is formed on the side of the sleeve 7 opposite the leg 12 in order to ensure that the sleeve 7 is stabilized in this area.
  • a sample tube 8 is placed, which receives the sample liquid.
  • the sleeve 7 is adapted to the sample tube 8.
  • the free end of the leg 12 is chosen so long that it forms approximately a line 17 with the bottom region of the sleeve 7, it being possible for a rib 16 to be additionally formed on the bottom region of the sleeve.
  • the leg 12 serves as a support foot for the swivel cup 6, which can thus be placed freely on a footprint.
  • the swivel cups 6 pivot outwards, as shown in FIG. 1, 2 on the left side.
  • the edges 10 of the slots 9 serve as pivot bearings and the swinging out takes place in the transition region between the straight part 13 and the leg 12 of the carrier part 11 bent downwards.
  • the carrier part 11 transmits the centrifugal force to the slot 9 via the edge 10 to the disk 2 in a load-transmitting manner.
  • the rotor can thus be of the simplest design and no complex contact surfaces on the rotor are required to absorb centrifugal forces.
  • FIG. 12 shows a further rotor 20 which holds swivel cups 6 which are connected to differently designed carrier parts 21.
  • Each carrier part here has a leg 22 which is bent approximately in a Z-shape and which, in the rest position of the swivel cup 6, rests with its end edge 23 on the rotor head 4. In this way, in the rest position of the rotor, a certain, desired and adjustable by the shape of the legs 22 inclined position of the swivel cup is achieved.
  • a swivel position can also be set arbitrarily by shaping the legs 22 when the swivel cup is swung out. In this case, the end edge 23 of the leg 22 then strikes (not shown) on the associated stop surfaces of the rotor.

Landscapes

  • Centrifugal Separators (AREA)
EP94101355A 1993-02-24 1994-01-29 Rotor pour centrifugeuse à godets pivotants Expired - Lifetime EP0612565B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4305581A DE4305581A1 (de) 1993-02-24 1993-02-24 Rotor für eine Schwenkbecherzentrifuge
DE4305581 1993-02-24

Publications (2)

Publication Number Publication Date
EP0612565A1 true EP0612565A1 (fr) 1994-08-31
EP0612565B1 EP0612565B1 (fr) 1997-04-09

Family

ID=6481162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94101355A Expired - Lifetime EP0612565B1 (fr) 1993-02-24 1994-01-29 Rotor pour centrifugeuse à godets pivotants

Country Status (3)

Country Link
US (1) US5456652A (fr)
EP (1) EP0612565B1 (fr)
DE (2) DE4305581A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008042971A1 (de) 2008-10-20 2010-04-22 Agilent Technologies Inc., Santa Clara Zentrifuge mit Magneteinrichtung

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5588946A (en) * 1994-06-24 1996-12-31 Johnson & Johnson Clinical Diagnostics, Inc. Centrifuge and phase separation
US6001310A (en) * 1996-10-11 1999-12-14 Shaffer; John V. Pliable centrifuge tube array
WO1999021658A1 (fr) * 1997-10-27 1999-05-06 Michael Yavilevich Ensemble de centrifugation combine
WO2000047328A1 (fr) * 1999-02-11 2000-08-17 Seward Limited Rotor a action centrifugeuse
JP4099961B2 (ja) * 2001-07-19 2008-06-11 日立工機株式会社 遠心分離機用スイングロータ及び遠心分離機
DE10316598B4 (de) * 2003-04-11 2008-05-21 Andreas Hettich Gmbh & Co. Kg Verfahren und Zentrifuge zur Gewinnung von biologischen Flüssigkeiten
CA3138078C (fr) 2007-10-02 2024-02-13 Labrador Diagnostics Llc Dispositifs modulaires a utiliser sur place et leurs utilisations
MX349288B (es) 2011-01-21 2017-07-21 Theranos Inc Sistemas y metodos para maximizacion de uso de muestras.
US9664702B2 (en) 2011-09-25 2017-05-30 Theranos, Inc. Fluid handling apparatus and configurations
US20140170735A1 (en) 2011-09-25 2014-06-19 Elizabeth A. Holmes Systems and methods for multi-analysis
US9632102B2 (en) 2011-09-25 2017-04-25 Theranos, Inc. Systems and methods for multi-purpose analysis
US8475739B2 (en) 2011-09-25 2013-07-02 Theranos, Inc. Systems and methods for fluid handling
US10012664B2 (en) 2011-09-25 2018-07-03 Theranos Ip Company, Llc Systems and methods for fluid and component handling
US9810704B2 (en) 2013-02-18 2017-11-07 Theranos, Inc. Systems and methods for multi-analysis
US11545241B1 (en) 2013-09-07 2023-01-03 Labrador Diagnostics Llc Systems and methods for analyte testing and data management
CN104056733B (zh) * 2014-06-10 2017-06-13 苏州培英实验设备有限公司 自闭式按压离心机转盘
JP2017527288A (ja) 2014-09-04 2017-09-21 セラノス， インコーポレイテッドＴｈｅｒａｎｏｓ， Ｉｎｃ． 病原体及び抗菌薬耐性試験

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE643836C (de) * 1933-07-13 1937-04-17 Collatz & Co E Zentrifuge
DE894010C (de) * 1951-03-30 1953-10-22 Paul Funke & Co Zentrifuge fuer Butyrometer
US3420437A (en) * 1967-02-15 1969-01-07 Sorvall Inc Ivan Cell washing centrifuge
FR2107154A5 (fr) * 1970-09-08 1972-05-05 Technicon Instr
DE2910868A1 (de) * 1979-03-20 1980-10-09 Heraeus Christ Gmbh Zentrifuge fuer zu analysierende probefluessigkeiten
EP0088425A2 (fr) * 1982-03-10 1983-09-14 E.I. Du Pont De Nemours And Company Appareil de lavage de cellules, comportant des bras de retenue dirigés radialement vers l'intérieur
SU1080877A1 (ru) * 1982-01-14 1984-03-23 Московский технологический институт мясной и молочной промышленности Центрифуга (ее варианты)
DE8903511U1 (de) * 1989-03-21 1990-01-11 Fa. Andreas Hettich, 7200 Tuttlingen Zentrifugenrotor mit Einsatzröhrchen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US484685A (en) * 1892-10-18 Centrifugal milk-tester
US486390A (en) * 1892-11-15 Centrifugal cream-tester
US3680967A (en) * 1970-09-14 1972-08-01 Technicon Instr Self-locating sample receptacle having integral identification label
US3781120A (en) * 1970-09-14 1973-12-25 Technicon Instr Self-locating sample receptacle having integral identification label
US3877634A (en) * 1973-05-25 1975-04-15 Du Pont Cell washing centrifuge apparatus and system
DE3118367C2 (de) * 1979-09-21 1984-05-24 Fa. Andreas Hettich, 7200 Tuttlingen Zentrifugenbecher aus Kunststoffmaterial
DE2938317C2 (de) * 1979-09-21 1983-04-28 Fa. Andreas Hettich, 7200 Tuttlingen Zentrifugenbecher aus Kunststoffmaterial
US4589864A (en) * 1984-11-05 1986-05-20 E. I. Du Pont De Nemours And Company Centrifuge rotor having a resilient trunnion

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE643836C (de) * 1933-07-13 1937-04-17 Collatz & Co E Zentrifuge
DE894010C (de) * 1951-03-30 1953-10-22 Paul Funke & Co Zentrifuge fuer Butyrometer
US3420437A (en) * 1967-02-15 1969-01-07 Sorvall Inc Ivan Cell washing centrifuge
FR2107154A5 (fr) * 1970-09-08 1972-05-05 Technicon Instr
DE2910868A1 (de) * 1979-03-20 1980-10-09 Heraeus Christ Gmbh Zentrifuge fuer zu analysierende probefluessigkeiten
SU1080877A1 (ru) * 1982-01-14 1984-03-23 Московский технологический институт мясной и молочной промышленности Центрифуга (ее варианты)
EP0088425A2 (fr) * 1982-03-10 1983-09-14 E.I. Du Pont De Nemours And Company Appareil de lavage de cellules, comportant des bras de retenue dirigés radialement vers l'intérieur
DE8903511U1 (de) * 1989-03-21 1990-01-11 Fa. Andreas Hettich, 7200 Tuttlingen Zentrifugenrotor mit Einsatzröhrchen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOVIET INVENTIONS ILLUSTRATED Section Ch Week 8445, 19 December 1984 Derwent World Patents Index; Class J04, AN 84-281344 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008042971A1 (de) 2008-10-20 2010-04-22 Agilent Technologies Inc., Santa Clara Zentrifuge mit Magneteinrichtung

Also Published As

Publication number Publication date
DE59402331D1 (de) 1997-05-15
DE4305581A1 (de) 1994-08-25
US5456652A (en) 1995-10-10
EP0612565B1 (fr) 1997-04-09

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