GB1481521A - Apparatus for sampling first and second liquids and delivering the samples through a common conduit - Google Patents

Apparatus for sampling first and second liquids and delivering the samples through a common conduit

Info

Publication number
GB1481521A
GB1481521A GB4778374A GB4778374A GB1481521A GB 1481521 A GB1481521 A GB 1481521A GB 4778374 A GB4778374 A GB 4778374A GB 4778374 A GB4778374 A GB 4778374A GB 1481521 A GB1481521 A GB 1481521A
Authority
GB
United Kingdom
Prior art keywords
pump
piston
liquids
compressed air
chamber
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
GB4778374A
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB1481521A publication Critical patent/GB1481521A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/38—Diluting, dispersing or mixing samples
    • 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
    • G01F11/021—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 piston type
    • G01F11/023—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 piston type with provision for varying the stroke of the piston
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/38—Diluting, dispersing or mixing samples
    • G01N2001/382—Diluting, dispersing or mixing samples using pistons of different sections

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Fluid Mechanics (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

1481521 Mixing liquids in proportions COMMISSARIAT A L'ENERGIE ATOMIQUE 5 Nov 1974 [5 Nov 1973] 47783/74 Heading B1C [Also in Divisions Fl and G1] Apparatus for sampling first and second liquids from containers 28, 15 and delivering them through a common conduit 13 to receiver 16 comprises first and second pumps 1, 2 each having a double-acting piston 39, 40 and control means for supplying an actuating fluid such as compressed air alternately to the two ends of the cylinder of each pump (through lines 8, 9), to reciprocate the pistons and to connect chamber 5 of the first pump to container 28 of the first liquid during the suction stroke of pump 1 and through line 17 to the chamber 6 of the second pump 2 during the delivery stroke of pump 1, the chamber 6 of the second pump being connected to the common conduit 13, so that during the suction stroke of the second pump the second liquid is drawn from container 15 towards chamber 6 and during the delivery stroke of the second pump samples of the first and second liquids are discharged through the common conduit into receiver 16, the piston of the second pump having rod 42 which extends through auxiliary free piston 52 in an auxiliary cylinder and which is movable by the auxiliary piston at the end of the delivery stroke to retract the piston of the second pump slightly from its end of delivery position (Fig. 1, not shown) to cause an air bubble to form at the end 14 of conduit 13, this air bubble serving to separate the two liquids for the next sampling operation. In the apparatus shown, the control means comprises slide valve 18, the moving member of the slide valve being advanced by compressed air fed through line 33 and retracted by spring 32. Compressed air for operation of the pumps 1 and 2 is fed in through passages in the slide valve from 38, and compressed air for retraction of the auxiliary piston is fed at 46 to aligned passages 45, 43. 50 at the end of the delivery stroke of the pumps.
GB4778374A 1973-11-05 1974-11-05 Apparatus for sampling first and second liquids and delivering the samples through a common conduit Expired GB1481521A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE806900 1973-11-05

Publications (1)

Publication Number Publication Date
GB1481521A true GB1481521A (en) 1977-08-03

Family

ID=3860926

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4778374A Expired GB1481521A (en) 1973-11-05 1974-11-05 Apparatus for sampling first and second liquids and delivering the samples through a common conduit

Country Status (3)

Country Link
FR (1) FR2250109B1 (en)
GB (1) GB1481521A (en)
IT (1) IT1030073B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3332502A1 (en) * 1982-09-06 1984-03-08 Instrumentation Laboratory S.p.A., 20128 Milano VOLUMETRIC THINNING DEVICE
GB2134989A (en) * 1983-02-07 1984-08-22 Outboard Marine Corp Fluid pressure actuated motor with pneumatically-coupled pistons
US4715237A (en) * 1984-07-06 1987-12-29 Metrohm Ag Process and apparatus for quantitative and/or qualitative analysis of liquids
EP0399947A1 (en) * 1989-05-26 1990-11-28 Metrohm Ag Volume measuring and dosing device
CN106769203A (en) * 2016-12-30 2017-05-31 重庆山楂树科技有限公司 Easily-controllable sampling bottle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2599148B1 (en) * 1986-05-22 1988-09-16 Centre Nat Rech Scient DEVICE FOR MAINTAINING THE STERILITY OF AN ENCLOSED CULTURE MEDIUM DURING SAMPLING
FR2618559A1 (en) * 1987-07-23 1989-01-27 Abx Sa DEVICE FOR DETERMINING THE BLOOD GROUP OF A SAMPLE

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3332502A1 (en) * 1982-09-06 1984-03-08 Instrumentation Laboratory S.p.A., 20128 Milano VOLUMETRIC THINNING DEVICE
GB2126117A (en) * 1982-09-06 1984-03-21 Instrumentation Lab Spa A self-priming volumetric diluter
GB2134989A (en) * 1983-02-07 1984-08-22 Outboard Marine Corp Fluid pressure actuated motor with pneumatically-coupled pistons
US4552101A (en) * 1983-02-07 1985-11-12 Outboard Marine Corporation Fluid pressure actuated motor with pneumatically-coupled pistons
GB2170278A (en) * 1983-02-07 1986-07-30 Outboard Marine Corp Fluid pressure actuated motor with pneumatically-coupled pistons
US4715237A (en) * 1984-07-06 1987-12-29 Metrohm Ag Process and apparatus for quantitative and/or qualitative analysis of liquids
EP0399947A1 (en) * 1989-05-26 1990-11-28 Metrohm Ag Volume measuring and dosing device
CN106769203A (en) * 2016-12-30 2017-05-31 重庆山楂树科技有限公司 Easily-controllable sampling bottle
CN106769203B (en) * 2016-12-30 2019-03-05 重庆山楂树科技有限公司 Easily-controllable sampling bottle

Also Published As

Publication number Publication date
FR2250109A1 (en) 1975-05-30
FR2250109B1 (en) 1980-02-08
IT1030073B (en) 1979-03-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee