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1. WO2000027528 - PIPETTE WITH IMPROVED PIPETTE TIP AND MOUNTING SHAFT COMBINATION

Publication Number WO/2000/027528
Publication Date 18.05.2000
International Application No. PCT/US1999/026210
International Filing Date 05.11.1999
Chapter 2 Demand Filed 19.05.2000
IPC
B01L 3/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
3Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
02Burettes; Pipettes
CPC
B01L 2200/0689
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
2200Solutions for specific problems relating to chemical or physical laboratory apparatus
06Fluid handling related problems
0689Sealing
B01L 2300/123
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
2300Additional constructional details
12Specific details about materials
123Flexible; Elastomeric
B01L 3/0279
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
3Containers or dishes for laboratory use, e.g. laboratory glassware
02Burettes; Pipettes
0275Interchangeable or disposable dispensing tips
0279co-operating with positive ejection means
Applicants
  • RAININ INSTRUMENT CO., INC. [US]/[US]
Inventors
  • PETREK, James, S.
Agents
  • MEADS, Robert, R.
Priority Data
09/188,03206.11.1998US
09/234,19520.01.1999US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PIPETTE WITH IMPROVED PIPETTE TIP AND MOUNTING SHAFT COMBINATION
(FR) PIPETTE A POINTE ET ENSEMBLE AXE DE MONTAGE AMELIORES
Abstract
(EN)
An air displacement pipette (10) having axially spaced annular sealing and frusto-conical lateral support zones (36, 38) and regions (46, 48) on the pipette"s mounting shaft (32) and tip (40), respectively, in combination with means (52) for insuring uniform depth of mounting shaft penetration into the pipette tip to maintain uniform tip interference with the mounting shaft as successive tips are mounted on and ejected from the mounting shaft whereby the pipette tip is easily and firmly mountable on and ejectable from the pipette tip mounting shaft by the application of reduced user generated axial forces.
(FR)
Pipette à déplacement d"air (10) comportant des zones (36, 38) et des régions (46, 48) de soutien latérales, tronconiques, annulaires et étanches, espacées axialement, respectivement sur l"axe de montage de la pipette (32) et sur la pointe (40), combinées à des moyens (52) assurant une profondeur uniforme de la pénétration de l"axe de montage dans la pointe de la pipette afin de maintenir une interaction uniforme de celle-ci et de l"axe de montage au fur et à mesure que des pointes successives sont montées sur et éjectées de l"axe de montage. La pointe de la pipette est pour cela facile à monter sur et à éjecter de l"axe de montage, grâce à l"application de forces axiales réduites générées par l"utilisateur.
Also published as
ININ/PCT/2001/477/KOL
Latest bibliographic data on file with the International Bureau