GB922062A - Pipetting device - Google Patents

Pipetting device

Info

Publication number
GB922062A
GB922062A GB2941760A GB2941760A GB922062A GB 922062 A GB922062 A GB 922062A GB 2941760 A GB2941760 A GB 2941760A GB 2941760 A GB2941760 A GB 2941760A GB 922062 A GB922062 A GB 922062A
Authority
GB
United Kingdom
Prior art keywords
tube
pipetting
ball
wall
channels
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
GB2941760A
Inventor
Alfred Klingbeil
Fritz Szezinsky
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB922062A publication Critical patent/GB922062A/en
Expired legal-status Critical Current

Links

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
    • B01L3/02—Burettes; Pipettes
    • B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
    • B01L3/0213—Accessories for glass pipettes; Gun-type pipettes, e.g. safety devices, pumps
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/14—Suction devices, e.g. pumps; Ejector devices

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Joints With Pressure Members (AREA)
  • Reciprocating Pumps (AREA)
  • Pipe Accessories (AREA)

Abstract

A pipetting device comprising a rubber ball with a rubber connector into which a pipetting tube is fitted, is characterized in that the thickness of the wall of the rubber ball progressively increases from the region nearest the pipetting tube to a region surrounding an air inlet and <PICT:0922062/III/1> outlet diametrically opposite. Such increase in wall thickness ensures that the ball returns to its original shape after being compressed. Fig. 1 shows a ball 3 having a wall thickest at the upper part near a valve tube 1. A pipetting tube 4 is fitted into a valve tube 2. The valves comprise rigid balls 8, 12 and 13 located in cylindrically widened portions, e.g. 7, in channels, e.g. 6; the valves are opened by pressing on flat projections, e.g. 9, so that air can pass through the channels which are normally blocked by the balls 8, 12 and 13.
GB2941760A 1960-08-25 1960-08-25 Pipetting device Expired GB922062A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3668962A GB955226A (en) 1960-08-25 1960-08-25 Pipetting device

Publications (1)

Publication Number Publication Date
GB922062A true GB922062A (en) 1963-03-27

Family

ID=10390364

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3668962A Expired GB955226A (en) 1959-12-30 1960-08-25 Pipetting device
GB2941760A Expired GB922062A (en) 1960-08-25 1960-08-25 Pipetting device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB3668962A Expired GB955226A (en) 1959-12-30 1960-08-25 Pipetting device

Country Status (1)

Country Link
GB (2) GB955226A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112387323A (en) * 2020-12-19 2021-02-23 桂林电子科技大学信息科技学院 Quota dropper based on double one-way air paths

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109012776B (en) * 2018-09-14 2020-12-29 青岛杰彼爱软件技术有限公司 Intelligent liquid device that joins in marriage for chemistry experiments

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112387323A (en) * 2020-12-19 2021-02-23 桂林电子科技大学信息科技学院 Quota dropper based on double one-way air paths

Also Published As

Publication number Publication date
GB955226A (en) 1964-04-15

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