EP0076772A2 - Zentrifugiergefäss und sein Stöpsel - Google Patents

Zentrifugiergefäss und sein Stöpsel Download PDF

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Publication number
EP0076772A2
EP0076772A2 EP82420143A EP82420143A EP0076772A2 EP 0076772 A2 EP0076772 A2 EP 0076772A2 EP 82420143 A EP82420143 A EP 82420143A EP 82420143 A EP82420143 A EP 82420143A EP 0076772 A2 EP0076772 A2 EP 0076772A2
Authority
EP
European Patent Office
Prior art keywords
cap
annular
skirt
extending
bottle
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.)
Withdrawn
Application number
EP82420143A
Other languages
English (en)
French (fr)
Other versions
EP0076772A3 (de
Inventor
Donald Alan Webster
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.)
SEPARATION SCIENCE Corp
Original Assignee
SEPARATION SCIENCE Corp
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 SEPARATION SCIENCE Corp filed Critical SEPARATION SCIENCE Corp
Publication of EP0076772A2 publication Critical patent/EP0076772A2/de
Publication of EP0076772A3 publication Critical patent/EP0076772A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
    • B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
    • B01L3/5021—Test tubes specially adapted for centrifugation purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
    • B01L3/508—Rigid containers without fluid transport within
    • B01L3/5082—Test tubes per se
    • B01L3/50825—Closing or opening means, corks, bungs

Definitions

  • the present invention relates in general to centrifuges in which the product to be centrifuged is placed in plastic tubular containers supported by the rotor of the centrifuges. More particularly, the present invention relates to the caps or plugs used to close the top of these tubular containers.
  • Centrifuges are usually provided with a rotor comprising a series of cavities, usually arranged in a circular fashion, and designed to receive the tubular containers receiving the sample to be centrifuged.
  • the axis line of each cavity is oriented angularly with respect to the vertical axis of rotation of the rotor, so that the bottom of the tubular container is more distant from the axis of the rotor than the top of the container.
  • Rotors with inclined tubular containers are advantageous in that initially the sample or product to be centrifuged is collected at the bottom of the container at a faster rate than when using a container having its longitudinal axis perpendicular to the axis of the rotor.
  • each container is provided with a cap or plug closing the mouth of the container. It is obvious that if the container used in a rotor angle is initially full or almost full, sample leakage occurs from the top of the tubular container, unless the cap provides adequate sealing.
  • the prior art provides numerous solutions for the problems inherent in the difficulties which oppose the possibility of ensuring effective obturation.
  • Many of these prior devices include multiple elements which must be assembled around the mouth of the centrifugal container, these elements being usually three in number. These multiple elements are necessary due to the non-uniform stresses applied to the container when it is used in an inclined centrifugal rotor.
  • the three components usually include a central plug, an annular seal and a ring.
  • the central stopper is designed to penetrate to a certain degree into the mouth of the container; given that this plug has an edge facing outward and radially with respect to the mouth, it bears on an annular seal placed on the edge of the mouth.
  • the annular ring which is screwed female onto the mouth of the container constitutes the means for compressing said edge or rim of the cap against the annular seal.
  • the present invention overcomes the aforementioned drawbacks and provides a tight and effective closure for a tubular container forming a bottle intended to be used in a centrifuge, this closure eliminating some of the handling operations that are encountered in prior devices.
  • the obturation is carried out by means of only two elements mounted one inside the other for ease of use.
  • the shuttering means has the overall appearance of a hat with an integral external skirt extending downward, comprising a female thread intended to cooperate with a corresponding male thread established on the neck.
  • a centrifugal container Concentrically and centrally with respect to the cap, there is provided another internal integral element extending in the direction of the bottom which penetrates with a certain ease of adjustment over a short distance into the mouth of the container.
  • a groove is provided between the outer skirt and said inner member, and is intended and constructed to retain an annular seal. The annular seal, when the plug is properly applied, has its part facing downwards abutting against the edge normally facing upwards of the container, and is compressed on this edge as and when screw the cap.
  • the container according to the present invention is shown in Figure 1 and referenced at 10 as a whole.
  • the same elements are designated by identical references in all the figures.
  • rounded bottom 12 intended to be placed in a housing of complementary shape provided in a centrifuge of conventional type (not shown).
  • the bottle 11 can be for example and not limited to a polymeric material, such as a polycarbonate. It is desirable that its outside diameter be chosen so as to easily adjust in the cavity of a centrifuge.
  • the bottle 11 is provided with a relatively wide mouth 13 which provides direct access to the interior of the bottle from the top.
  • the mouth 13 ends with an annular surface 14 oriented upwards.
  • the neck 15 of the bottle below the annular surface 14 is provided externally with a male thread 16. It should be noted that the neck 15 is of a somewhat smaller diameter than the main body part 17 of the bottle .
  • An annular shoulder portion 18 connects the aforementioned neck 15 to the main body portion 17 of the bottle.
  • a cap 21 is adapted and designed to be screwed onto the thread of the neck of the bottle.
  • This cap has an annular outer skirt 22 having a thread 23 provided to cooperate with the male thread 16 established on the neck of the bottle.
  • the cap also includes a second skirt 24 extending in the direction of the bottom and having a somewhat smaller diameter, thus defining a groove 25 between the inner surface of the large diameter skirt 22 and the outer cylindrical surface of the small skirt diameter 24.
  • the annular groove 25 has a rounded end surface with an arcuate profile provided so as to match part of the arcuate surface of an annular seal 30 positioned in the annular groove, as illustrated in FIG. 2 in particular.
  • the opposite arcuate surface is flattened against the upwardly facing annular surface 14 when the cap is screwed onto the neck of the bottle.
  • the groove 25 being of a size allowing it to receive with an ease of adjustment the annular seal, we can discern a small annular shoulder 31 established between the groove 25 and the integral-exterior skirt extending downward. 22.
  • the thickness rating of the part of the neck of the bottle having the annular surface oriented in the direction of the top 14 is provided so that this part fits in a part of the groove, in thus retaining permanently the annular seal.
  • the thickness at the mouth is slightly greater than the overall thickness of the neck. It has been found that it is effective to ensure that the annular seal is retained securely captive when compression occurs.
  • the skirt 24, together with the underside of the cap defines a configuration in the form of an integral bowl extending in the direction of the bottom.
  • the fact that the said bowl-like configuration is massive falls within the aims and characteristics of the present invention.
  • the upper part of the hat has an elongated ear 41 extending in the upward direction.
  • This ear is intended to provide a means of assistance for screwing and unscrewing the hat as desired. It is also useful for removing a corked bottle from the centrifuge cavity, since it is a practical means of gripping.
  • the outside diameter of the skirt 22 of the hat is identical to the outside diameter of the bottle. In this way, the wall of the centrifuge cavity provides a support surface for both the cap and the bottle.
  • Figure 4 clearly shows the characteristic aspect of another embodiment of the hat, falling within the scope of the present invention.
  • the upper surface of the cap of this embodiment has a depression 51.
  • an ear 52 is produced which comes to be flush with its upper part, the top surface 53 of the cap.
  • the vacuum allows positioning of the fingers of the hand on either side of the ear, the bottle thus being able to be removed by its cap from the cavity of a centrifuge.
  • the extraction is carried out using hemostatic forceps or clockwork forceps.
  • edge portion 55 of the hat is annularly beveled as in the first embodiment.
  • the cap or cap according to the present invention can also be made of polycarbonate. It has been found that this polymeric material is particularly useful. Other materials or materials known or not in the trade can prove to be just as useful. Consequently, the invention is not limited to manufacture with polycarbonate.
  • the one-piece cap according to the present invention provides a rigid support for the annular seal, and therefore eliminates the need to handle an insert.
  • the invention is in no way limited to that of its modes of application any more than to those of the embodiments of its various parts which have been more particularly indicated; on the contrary, it embraces all its variants.

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Hematology (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Closures For Containers (AREA)
  • Centrifugal Separators (AREA)
EP82420143A 1981-10-07 1982-10-06 Zentrifugiergefäss und sein Stöpsel Withdrawn EP0076772A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US30942081A 1981-10-07 1981-10-07
US309420 1989-02-10

Publications (2)

Publication Number Publication Date
EP0076772A2 true EP0076772A2 (de) 1983-04-13
EP0076772A3 EP0076772A3 (de) 1984-05-30

Family

ID=23198163

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82420143A Withdrawn EP0076772A3 (de) 1981-10-07 1982-10-06 Zentrifugiergefäss und sein Stöpsel

Country Status (2)

Country Link
EP (1) EP0076772A3 (de)
JP (1) JPS5876154A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2226811A (en) * 1988-09-06 1990-07-11 Sunbeam Plastics Corp Closure and sealing means therefor
EP0676643A3 (de) * 1994-04-09 1996-02-28 Boehringer Mannheim Gmbh System zur kontaminationsfreien Bearbeitung von Reaktionsabläufen.
EP0734769A1 (de) * 1995-03-31 1996-10-02 Roche Diagnostics GmbH Deckel zum Verschluss von Gefässen
EP1477791A3 (de) * 2003-05-12 2005-02-02 H.C. Starck GmbH Vorrichtung und Verfahren zur Probenahme von Suspensionen
US9114407B2 (en) 2009-06-30 2015-08-25 Hitachi Koki Co., Ltd. Centrifugal separator with rotor having plurality of triangular-shaped holding cavities and rotor for use in centrifugal separator

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK2190581T3 (da) * 2007-08-21 2013-03-04 Nalge Nunc Int Corp Lukkeanordning til centrifugeflaske og samling deraf
JP5333760B2 (ja) * 2009-06-30 2013-11-06 日立工機株式会社 遠心分離機用試料容器
US9987634B2 (en) * 2014-12-03 2018-06-05 Fiberlite Centrifuge, Llc Centrifuge sample container and closure therefor
US10112199B2 (en) * 2014-12-03 2018-10-30 Fiberlite Centrifuge, Llc Centrifuge sample container and closure therefore
USD777941S1 (en) 2015-07-17 2017-01-31 Fiberlite Centrifuge, Llc Centrifuge bottle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3366320A (en) * 1965-07-21 1968-01-30 Atomic Energy Commission Usa Centrifuge sample holder
DE1263584B (de) * 1966-12-13 1968-03-14 Mauser Kg Schraubkappe
DE2238264A1 (de) * 1972-08-03 1974-02-14 Wmf Wuerttemberg Metallwaren Verschluss fuer flaschen mit gewinde
BE876606R (fr) * 1979-05-29 1979-11-29 Stayne Products Fermeture de recipient

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2226811A (en) * 1988-09-06 1990-07-11 Sunbeam Plastics Corp Closure and sealing means therefor
EP0676643A3 (de) * 1994-04-09 1996-02-28 Boehringer Mannheim Gmbh System zur kontaminationsfreien Bearbeitung von Reaktionsabläufen.
US5846489A (en) * 1994-04-09 1998-12-08 Boehringer Mannheim Gmbh System for opening closures of vessels and for the contamination-free operation of reaction sequences
EP0734769A1 (de) * 1995-03-31 1996-10-02 Roche Diagnostics GmbH Deckel zum Verschluss von Gefässen
EP1477791A3 (de) * 2003-05-12 2005-02-02 H.C. Starck GmbH Vorrichtung und Verfahren zur Probenahme von Suspensionen
US9114407B2 (en) 2009-06-30 2015-08-25 Hitachi Koki Co., Ltd. Centrifugal separator with rotor having plurality of triangular-shaped holding cavities and rotor for use in centrifugal separator

Also Published As

Publication number Publication date
EP0076772A3 (de) 1984-05-30
JPS5876154A (ja) 1983-05-09

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Effective date: 19850425

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Inventor name: WEBSTER, DONALD ALAN