EP0344792A3 - Pipettiergerät - Google Patents

Pipettiergerät Download PDF

Info

Publication number
EP0344792A3
EP0344792A3 EP19890109965 EP89109965A EP0344792A3 EP 0344792 A3 EP0344792 A3 EP 0344792A3 EP 19890109965 EP19890109965 EP 19890109965 EP 89109965 A EP89109965 A EP 89109965A EP 0344792 A3 EP0344792 A3 EP 0344792A3
Authority
EP
European Patent Office
Prior art keywords
pipette
press button
piston
housing
sealing ring
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
EP19890109965
Other languages
English (en)
French (fr)
Other versions
EP0344792A2 (de
EP0344792B1 (de
Inventor
Adolf Martin Hirschmann
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.)
Glasgeratebau Hirschmann
Original Assignee
Glasgeratebau Hirschmann
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 Glasgeratebau Hirschmann filed Critical Glasgeratebau Hirschmann
Priority to AT89109965T priority Critical patent/ATE83174T1/de
Publication of EP0344792A2 publication Critical patent/EP0344792A2/de
Publication of EP0344792A3 publication Critical patent/EP0344792A3/de
Application granted granted Critical
Publication of EP0344792B1 publication Critical patent/EP0344792B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Endoscopes (AREA)
  • Pipe Accessories (AREA)
  • Catching Or Destruction (AREA)

Abstract

Ein Pipettiergerät besteht aus einem Gehäuse mit einem Handgriff (1) und einer Pipettenaufnahme (17) für eine Pipette (19). Eine Saugeinrichtung dient zum Aufsaugen einer Flüssigkeit in die Pipette (19). Eine weitere Einrichtung, mittels der der geräte­ seitige Unterdruck wieder auf Atmosphärendruck gebracht wird dient zum Ablassen einer aufgesaugten Flüssigkeit aus der Pipette. Um ein derartiges Pipettiergerät zu verbessern, ist zum Ablassen einer Flüssigkeit ein mit einem Druckknopf (8a) ver­ sehener Kolben (6) in dem Handgriff (1) längsbeweglich geführt. Der Kolben (6) durchsetzt einen gehäusefesten Dichtungsring. Auf der dem Dichtungsring abgewandten Seite des Druckknopfes (8a) ist ein mit der Pipettenaufnahme (17) verbundener Abströmraum (43) in dem Gehäuse (1, 2) vorgesehen. Der Kolben (6) weist an seinem dem Druckknopf (8a) abgewandten Ende einen ersten, den Druchmesser des Dichtungsrings entsprechenden Bereich auf sowie einen daran anschließenden zweiten Bereich, in dem der Durchmesser in Richtung auf den Druckknopf (8a) abnimmt (Fig. 1).
EP89109965A 1988-06-01 1989-06-01 Pipettiergerät Expired - Lifetime EP0344792B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89109965T ATE83174T1 (de) 1988-06-01 1989-06-01 Pipettiergeraet.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3818704 1988-06-01
DE3818704A DE3818704A1 (de) 1988-06-01 1988-06-01 Pipettiergeraet

Publications (3)

Publication Number Publication Date
EP0344792A2 EP0344792A2 (de) 1989-12-06
EP0344792A3 true EP0344792A3 (de) 1991-01-23
EP0344792B1 EP0344792B1 (de) 1992-12-09

Family

ID=6355655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89109965A Expired - Lifetime EP0344792B1 (de) 1988-06-01 1989-06-01 Pipettiergerät

Country Status (4)

Country Link
EP (1) EP0344792B1 (de)
JP (1) JPH02110323A (de)
AT (1) ATE83174T1 (de)
DE (2) DE3818704A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19717361C3 (de) * 1997-04-24 2002-08-22 Walu Labortechnik Gmbh Pipettiergerät
PL358260A1 (en) * 2003-01-14 2004-07-26 P.Z.HTL Spółka Akcyjna Method of dosung liquid in pipetting device and pipetting device
PL200757B1 (pl) 2003-02-11 2009-02-27 Pz Htl Spo & Lstrok Ka Akcyjna Urządzenie pipetujące
USD510629S1 (en) 2004-01-16 2005-10-11 Heathrow Scientific Llc Pipette device with pivotable nozzle assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3834240A (en) * 1973-02-23 1974-09-10 Drummond Scient Co Apparatus for drawing liquids into, and expelling liquids from, a pipette or the like
US3963061A (en) * 1975-09-16 1976-06-15 Drummond Scientific Company Apparatus for drawing liquids into, and expelling liquids from a pipette

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE698619C (de) * 1937-03-25 1940-11-14 Paul Giese Ansaug- und Ablassvorrichtung fuer Pipetten
DE914790C (de) * 1951-07-13 1954-07-08 Paul Giese Pipettierapparat
US4624147A (en) * 1985-11-12 1986-11-25 Drummond Scientific Company Pipet gun for drawing liquid into and expelling it from a pipet

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3834240A (en) * 1973-02-23 1974-09-10 Drummond Scient Co Apparatus for drawing liquids into, and expelling liquids from, a pipette or the like
US3963061A (en) * 1975-09-16 1976-06-15 Drummond Scientific Company Apparatus for drawing liquids into, and expelling liquids from a pipette

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOVIET INVENTIONS ILLUSTRATED, Wöche 8619, 23. Mai 1986, Nr. J04, 86-124283/19, Derwent Publications Ltd, London, GB; & SU-A-1 186 244 (AS KAZA SOIL SCI) 23-10-1985 *

Also Published As

Publication number Publication date
DE3818704A1 (de) 1989-12-07
DE3818704C2 (de) 1990-04-12
EP0344792A2 (de) 1989-12-06
EP0344792B1 (de) 1992-12-09
ATE83174T1 (de) 1992-12-15
JPH02110323A (ja) 1990-04-23
DE58902939D1 (de) 1993-01-21

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