FR2427134A1 - ADJUSTABLE VOLUME PIPETTE, WITH EXTERNAL THREADED STOP SLEEVE - Google Patents
ADJUSTABLE VOLUME PIPETTE, WITH EXTERNAL THREADED STOP SLEEVEInfo
- 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
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.
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)
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)
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)
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 |
-
1978
- 1978-06-02 FI FI781765A patent/FI57543C/en not_active IP Right Cessation
-
1979
- 1979-05-21 GB GB7917654A patent/GB2022453B/en not_active Expired
- 1979-05-26 DE DE19792921442 patent/DE2921442A1/en not_active Withdrawn
- 1979-06-01 FR FR7914915A patent/FR2427134A1/en active Granted
- 1979-06-01 SU SU792774303A patent/SU1099835A3/en active
Patent Citations (4)
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)
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 |