GB2008668A - Dosage Pumps - Google Patents

Dosage Pumps

Info

Publication number
GB2008668A
GB2008668A GB7845419A GB7845419A GB2008668A GB 2008668 A GB2008668 A GB 2008668A GB 7845419 A GB7845419 A GB 7845419A GB 7845419 A GB7845419 A GB 7845419A GB 2008668 A GB2008668 A GB 2008668A
Authority
GB
United Kingdom
Prior art keywords
piston
pump
small quantities
chamber
portions
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Withdrawn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
GB7845419A
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.)
SCLAVO INST SIEROTERAPEUT
Original Assignee
SCLAVO INST SIEROTERAPEUT
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 SCLAVO INST SIEROTERAPEUT filed Critical SCLAVO INST SIEROTERAPEUT
Publication of GB2008668A publication Critical patent/GB2008668A/en
Withdrawn legal-status Critical Current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
    • 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
    • B01L3/0289—Apparatus for withdrawing or distributing predetermined quantities of fluid
    • B01L3/0293—Apparatus for withdrawing or distributing predetermined quantities of fluid for liquids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Reciprocating Pumps (AREA)

Abstract

A dosage pump for accurately dispensing small quantities of liquids has a piston (32) with two different diameter portions which extend through opposite sides of a pump chamber (3). Reciprocation of the piston (32) changes the internal volume of the chamber (3) unoccupied by the piston and affords a pumping action. Since the differences in diameter of the piston portions can be made very small, even with moderate stroke lengths small quantities of liquid can be dispensed with accuracy. Provision is made for adjustment of the stroke length to provide for variation in delivered volume. The pump is suitable for use in analytical applications. <IMAGE>
GB7845419A 1977-11-23 1978-11-21 Dosage Pumps Withdrawn GB2008668A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT963077A IT1089495B (en) 1977-11-23 1977-11-23 DOSING AND DILUTION PUMP

Publications (1)

Publication Number Publication Date
GB2008668A true GB2008668A (en) 1979-06-06

Family

ID=11132796

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7845419A Withdrawn GB2008668A (en) 1977-11-23 1978-11-21 Dosage Pumps

Country Status (9)

Country Link
JP (1) JPS5481502A (en)
BE (1) BE872236A (en)
BR (1) BR7807672A (en)
DE (1) DE2850633A1 (en)
FR (1) FR2410153A1 (en)
GB (1) GB2008668A (en)
IT (1) IT1089495B (en)
LU (1) LU80564A1 (en)
NL (1) NL7811544A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60162279U (en) * 1984-04-05 1985-10-28 株式会社　ト−ケミ Flow rate adjustment device in metering pump
FI844320A (en) * 1984-11-02 1986-05-03 Labsystems Oy UTSPAEDNINGSDOSERINGSANORDNING.
JPH0623747Y2 (en) * 1985-09-24 1994-06-22 電気化学計器株式会社 Flow control mechanism of plunger pump
FR2737977B1 (en) * 1995-08-25 1997-10-24 Alliance Instr Sa FLUID REACTOR AND INSTALLATION FOR THE CONTINUOUS ANALYSIS OF A PARAMETER OF A FLUID

Also Published As

Publication number Publication date
JPS5481502A (en) 1979-06-29
BR7807672A (en) 1979-06-26
LU80564A1 (en) 1979-03-22
NL7811544A (en) 1979-05-28
DE2850633A1 (en) 1979-05-31
FR2410153A1 (en) 1979-06-22
IT1089495B (en) 1985-06-18
BE872236A (en) 1979-03-16

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)