FR2427134A1 - ADJUSTABLE VOLUME PIPETTE, WITH EXTERNAL THREADED STOP SLEEVE - Google Patents

ADJUSTABLE VOLUME PIPETTE, WITH EXTERNAL THREADED STOP SLEEVE

Info

Publication number
FR2427134A1
FR2427134A1 FR7914915A FR7914915A FR2427134A1 FR 2427134 A1 FR2427134 A1 FR 2427134A1 FR 7914915 A FR7914915 A FR 7914915A FR 7914915 A FR7914915 A FR 7914915A FR 2427134 A1 FR2427134 A1 FR 2427134A1
Authority
FR
France
Prior art keywords
pipette
sleeve
locking
stop sleeve
adjustable volume
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.)
Granted
Application number
FR7914915A
Other languages
French (fr)
Other versions
FR2427134B1 (en
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.)
SUOVANIEMI FINNPIPETTE
Original Assignee
SUOVANIEMI FINNPIPETTE
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 SUOVANIEMI FINNPIPETTE filed Critical SUOVANIEMI FINNPIPETTE
Publication of FR2427134A1 publication Critical patent/FR2427134A1/en
Application granted granted Critical
Publication of FR2427134B1 publication Critical patent/FR2427134B1/fr
Granted 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
    • B01L3/0217—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids of the plunger pump type
    • B01L3/0224—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids of the plunger pump type having mechanical means to set stroke length, e.g. movable stops

Landscapes

  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

La présente invention a pour objet une pipette de volume réglable. Selon l'invention une ou plusieurs rainures sont pratiquées suivant la direction longitudinale d'un manchon d'arrêt 19 sur la face extérieure de ce dernier; un embout de verrouillage 18 ou autre moyen de verrouillage est attaché au corps de la pipette à l'aide d'un moyen élastique, par exemple un ressort à lame 17, de manière à constituer un moyen coopérant avec ladite rainure, cet embout ou moyen de verrouillage étant conçu pour être poussé par un ressort contre la face extérieure du manchon d'arrêt, grâce à quoi la rainure se déplace de façon périodique, quand on fait tourner ce manchon au-dessus de l'embout de verrouillage jusqu'à une position dans laquelle il bloque le réglage de la pipette pour une valeur donnée du volume et, de la sorte, constitue dans cette pipette un volume réglable de façon périodique ou pas à pas.The present invention relates to a pipette of adjustable volume. According to the invention one or more grooves are made in the longitudinal direction of a stop sleeve 19 on the outer face of the latter; a locking tip 18 or other locking means is attached to the body of the pipette by means of an elastic means, for example a leaf spring 17, so as to constitute a means cooperating with said groove, this tip or means locking sleeve being designed to be urged by a spring against the outer face of the stopper sleeve, whereby the groove moves periodically, when this sleeve is rotated above the locking cap to a position in which it blocks the adjustment of the pipette for a given volume value and, in this way, constitutes in this pipette a volume which can be adjusted periodically or step by step.

FR7914915A 1978-06-02 1979-06-01 ADJUSTABLE VOLUME PIPETTE, WITH EXTERNAL THREADED STOP SLEEVE Granted FR2427134A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI781765A FI57543C (en) 1978-06-02 1978-06-02 VOLUMREGLERBAR PIPETT

Publications (2)

Publication Number Publication Date
FR2427134A1 true FR2427134A1 (en) 1979-12-28
FR2427134B1 FR2427134B1 (en) 1984-12-07

Family

ID=8511767

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7914915A Granted FR2427134A1 (en) 1978-06-02 1979-06-01 ADJUSTABLE VOLUME PIPETTE, WITH EXTERNAL THREADED STOP SLEEVE

Country Status (5)

Country Link
DE (1) DE2921442A1 (en)
FI (1) FI57543C (en)
FR (1) FR2427134A1 (en)
GB (1) GB2022453B (en)
SU (1) SU1099835A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473124A1 (en) * 1980-01-04 1981-07-10 Marteau D Autry Eric DEVICE FOR COLLECTING AND DISPENSING DIGITAL ADJUSTABLE VOLUMES OF LIQUIDS

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI62470C (en) * 1981-06-17 1983-01-10 Labsystems Oy pipette
FI844320A (en) 1984-11-02 1986-05-03 Labsystems Oy UTSPAEDNINGSDOSERINGSANORDNING.
DE3875117D1 (en) * 1988-10-21 1992-11-05 Eppendorf Geraetebau Netheler PIPETTING DEVICE.
DE69008540T2 (en) * 1989-10-20 1994-12-15 Costar Corp PIPETTE.
FI86968C (en) * 1990-05-04 1992-11-10 Biohit Oy pipette

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2771217A (en) * 1953-07-20 1956-11-20 James W Brown Measuring and dispensing device
US2792834A (en) * 1955-09-22 1957-05-21 Scientific Industries Operating device for syringe or pipet
US3327904A (en) * 1966-01-11 1967-06-27 Greiner Scient Corp Liquid dispensing devices
FR2383704A1 (en) * 1977-03-15 1978-10-13 Labora Mannheim Gmbh HAND PIPETTE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2771217A (en) * 1953-07-20 1956-11-20 James W Brown Measuring and dispensing device
US2792834A (en) * 1955-09-22 1957-05-21 Scientific Industries Operating device for syringe or pipet
US3327904A (en) * 1966-01-11 1967-06-27 Greiner Scient Corp Liquid dispensing devices
FR2383704A1 (en) * 1977-03-15 1978-10-13 Labora Mannheim Gmbh HAND PIPETTE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473124A1 (en) * 1980-01-04 1981-07-10 Marteau D Autry Eric DEVICE FOR COLLECTING AND DISPENSING DIGITAL ADJUSTABLE VOLUMES OF LIQUIDS
EP0032098B1 (en) * 1980-01-04 1983-04-27 Marteau d'Autry, Eric Device for withdrawing and distributing regulated quantities of liquid, provided with a numerical display

Also Published As

Publication number Publication date
DE2921442A1 (en) 1979-12-13
FI781765A (en) 1979-12-03
SU1099835A3 (en) 1984-06-23
GB2022453A (en) 1979-12-19
FI57543B (en) 1980-05-30
GB2022453B (en) 1982-11-10
FI57543C (en) 1980-09-10
FR2427134B1 (en) 1984-12-07

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Legal Events

Date Code Title Description
ST Notification of lapse