GB1455664A - Fluid metering displacement device method and system - Google Patents

Fluid metering displacement device method and system

Info

Publication number
GB1455664A
GB1455664A GB1600774A GB1600774A GB1455664A GB 1455664 A GB1455664 A GB 1455664A GB 1600774 A GB1600774 A GB 1600774A GB 1600774 A GB1600774 A GB 1600774A GB 1455664 A GB1455664 A GB 1455664A
Authority
GB
United Kingdom
Prior art keywords
cuvette
sample
april
valve
diaphragm
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.)
Expired
Application number
GB1600774A
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.)
Coulter Electronics Inc
Original Assignee
Coulter Electronics Inc
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 Coulter Electronics Inc filed Critical Coulter Electronics Inc
Publication of GB1455664A publication Critical patent/GB1455664A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/02—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement
    • G01F11/08—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the diaphragm or bellows type
    • G01F11/086—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the diaphragm or bellows type using an auxiliary pressure to cooperate with the diaphragm or bellows
    • 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
    • B01L3/02—Burettes; Pipettes
    • B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/06—Pumps having fluid drive
    • F04B43/073—Pumps having fluid drive the actuating fluid being controlled by at least one valve

Abstract

1455664 Pipettes COULTER ELECTRONICS Inc 10 April 1974 [16 April 1973 18 April 1973] 16007/74 Heading B1X [Also in Divisions F1 and G1] Fixed volumes of liquid are drawn up into a cuvette 110 for analysis by means of a constant volume fluid displacement device 10, the device having a non-elastic diaphragm 16 clamped between two similar opposed concave surfaces 30, 32 for movement between and against the surfaces. A sample of liquid is drawn up into the cuvette by the application of a vacuum via a valve 154 to one side of the diphragm, and the sample is subsequently forced out of the cuvette by the application of pressure to the same side of the diaphragm via the valve. The forcing out of the sample may be assisted by pressurised air applied via a valve 164, this air serving also to purge the cuvette. The volume of the sample may either be defined by the whole volume of the space enclosed by the two concave surfaces, or by half that space. In the latter case the normal starting position of the diaphragm is midway between the concave surfaces, this method enabling an equal volume of air to be forced out from the cuvette following the forcing out of the sample.
GB1600774A 1973-04-16 1974-04-10 Fluid metering displacement device method and system Expired GB1455664A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US35179373A 1973-04-16 1973-04-16
US35220073A 1973-04-18 1973-04-18

Publications (1)

Publication Number Publication Date
GB1455664A true GB1455664A (en) 1976-11-17

Family

ID=26997260

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1600774A Expired GB1455664A (en) 1973-04-16 1974-04-10 Fluid metering displacement device method and system

Country Status (12)

Country Link
JP (2) JPS5013069A (en)
BR (1) BR7402881D0 (en)
CA (1) CA1061596A (en)
CH (1) CH593428A5 (en)
DE (1) DE2417626C2 (en)
ES (1) ES425253A1 (en)
FR (1) FR2225727B1 (en)
GB (1) GB1455664A (en)
IL (1) IL44596A (en)
IT (1) IT1018646B (en)
NL (1) NL7404866A (en)
SE (1) SE405511B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4498850A (en) * 1980-04-28 1985-02-12 Gena Perlov Method and device for fluid transfer
US7427379B1 (en) 1999-03-19 2008-09-23 Biotage Ab Liquid dispensing apparatus

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2629154C2 (en) * 1976-06-29 1984-05-17 Ahrens & Bode GmbH & Co Maschinen- und Apparatebau, 3338 Schöningen Sampling device for take-over devices for milk
US4461181A (en) * 1983-01-06 1984-07-24 Becton Dickinson And Company Control for sample volume metering apparatus
JPS6017442U (en) * 1983-07-14 1985-02-06 株式会社島津製作所 Liquid suction nozzle device
US4537231A (en) * 1983-08-29 1985-08-27 Becton, Dickinson And Company Dispenser apparatus for simultaneously dispensing predetermined equal volumes of liquid including a disposable dispenser module
KR101054270B1 (en) * 2004-11-01 2011-08-08 가부시끼가이샤 오크테크 Pump for chemical liquid supply

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2946488A (en) * 1957-12-26 1960-07-26 August L Kraft Metering and dispensing systems
GB1032119A (en) * 1962-09-07 1966-06-08 Nat Res Dev Improvements relating to breath-alcohol analysing apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4498850A (en) * 1980-04-28 1985-02-12 Gena Perlov Method and device for fluid transfer
US4697989A (en) * 1980-04-28 1987-10-06 Gena Perlov Electrodynamic peristaltic fluid transfer device and method
US7427379B1 (en) 1999-03-19 2008-09-23 Biotage Ab Liquid dispensing apparatus

Also Published As

Publication number Publication date
NL7404866A (en) 1974-10-18
IT1018646B (en) 1977-10-20
JPS58109024U (en) 1983-07-25
CH593428A5 (en) 1977-11-30
JPS5013069A (en) 1975-02-10
CA1061596A (en) 1979-09-04
BR7402881D0 (en) 1974-11-19
IL44596A0 (en) 1974-06-30
DE2417626C2 (en) 1986-07-24
FR2225727B1 (en) 1979-07-06
ES425253A1 (en) 1976-12-16
FR2225727A1 (en) 1974-11-08
SE405511B (en) 1978-12-11
DE2417626A1 (en) 1974-11-07
IL44596A (en) 1977-04-29
JPS6015130Y2 (en) 1985-05-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee