EP0250243A3 - Burette - Google Patents

Burette Download PDF

Info

Publication number
EP0250243A3
EP0250243A3 EP87305422A EP87305422A EP0250243A3 EP 0250243 A3 EP0250243 A3 EP 0250243A3 EP 87305422 A EP87305422 A EP 87305422A EP 87305422 A EP87305422 A EP 87305422A EP 0250243 A3 EP0250243 A3 EP 0250243A3
Authority
EP
European Patent Office
Prior art keywords
burette
reagent container
end fitting
cannula
push button
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
EP87305422A
Other versions
EP0250243A2 (en
EP0250243B1 (en
Inventor
Timothy John Sly
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.)
WR Grace and Co Conn
Original Assignee
WR Grace and Co
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 WR Grace and Co filed Critical WR Grace and Co
Priority to AT87305422T priority Critical patent/ATE72773T1/en
Publication of EP0250243A2 publication Critical patent/EP0250243A2/en
Publication of EP0250243A3 publication Critical patent/EP0250243A3/en
Application granted granted Critical
Publication of EP0250243B1 publication Critical patent/EP0250243B1/en
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
    • B01L3/0203—Burettes, i.e. for withdrawing and redistributing liquids through different conduits
    • B01L3/0206—Burettes, i.e. for withdrawing and redistributing liquids through different conduits of the plunger pump type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00—Additional constructional details
    • B01L2300/02—Identification, exchange or storage of information
    • B01L2300/025—Displaying results or values with integrated means
    • B01L2300/027—Digital display, e.g. LCD, LED

Landscapes

  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Steroid Compounds (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Devices For Opening Bottles Or Cans (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

The invention provides a burette having a body 1 adapted to receive at one end a releasable reagent container 3 having a removable end fitting with a cannula 7 such that the cannula 7 ruptures a self-re-sealing diaphragm of the reagent container 3 when the end fitting is mounted on the reagent container 3, and that the diaphragm is allowed to re-seal when the end fitting is removed. The burette also includes an electric linear actuator comprising a stepping motor 8 and a reciprocable drive shaft 9, and includes a re-chargeable battery 10 with power to the stepping motor 8 controlled by a push button 11. A further push button 12 re-sets a digital display means 13. An interface socket 14 allows the burette to be connected to an external controller such as a microcomputer, and may serve as a power input connector for battery charging.
EP87305422A 1986-06-19 1987-06-18 Burette Expired - Lifetime EP0250243B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87305422T ATE72773T1 (en) 1986-06-19 1987-06-18 BURETTE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868614899A GB8614899D0 (en) 1986-06-19 1986-06-19 Burette
GB8614899 1986-06-19

Publications (3)

Publication Number Publication Date
EP0250243A2 EP0250243A2 (en) 1987-12-23
EP0250243A3 true EP0250243A3 (en) 1988-08-17
EP0250243B1 EP0250243B1 (en) 1992-02-26

Family

ID=10599692

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87305422A Expired - Lifetime EP0250243B1 (en) 1986-06-19 1987-06-18 Burette

Country Status (5)

Country Link
EP (1) EP0250243B1 (en)
AT (1) ATE72773T1 (en)
DE (1) DE3776818D1 (en)
ES (1) ES2029476T3 (en)
GB (1) GB8614899D0 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0903179A1 (en) 1997-09-18 1999-03-24 Metrohm Ag Microvalve
DE19906409B4 (en) * 1999-02-16 2006-01-19 Brand Gmbh & Co. Kg Dosing device and method for operating a metering device
DE102004003434B4 (en) * 2004-01-21 2006-06-08 Eppendorf Ag Pipetting device with a displacement device and a drive device detachably connected thereto
WO2020210198A1 (en) * 2019-04-09 2020-10-15 Polymer Technology Systems, Inc. Systems and methods for meter reconfiguration, control, and operation via an insertable chip with microprocessor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041995A (en) * 1975-01-30 1977-08-16 Eastman Kodak Company Gas pressure-activated drop dispenser
US4399712A (en) * 1981-02-09 1983-08-23 Nichiryo Co., Ltd. Semi-automatic electro-mechanical pipette with controlled tip remover
US4459997A (en) * 1981-11-03 1984-07-17 Walter Sarstedt Kunststoff-Spritzgusswerk Blood extracting and centrifuging device
EP0152120A2 (en) * 1984-02-16 1985-08-21 Rainin Instruments Co., Inc. Hand-held, self-contained, automated pipette for pipetting and/or titrating liquids
US4593837A (en) * 1985-03-15 1986-06-10 Eastman Kodak Company Variable volume pipette

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041995A (en) * 1975-01-30 1977-08-16 Eastman Kodak Company Gas pressure-activated drop dispenser
US4399712A (en) * 1981-02-09 1983-08-23 Nichiryo Co., Ltd. Semi-automatic electro-mechanical pipette with controlled tip remover
US4459997A (en) * 1981-11-03 1984-07-17 Walter Sarstedt Kunststoff-Spritzgusswerk Blood extracting and centrifuging device
EP0152120A2 (en) * 1984-02-16 1985-08-21 Rainin Instruments Co., Inc. Hand-held, self-contained, automated pipette for pipetting and/or titrating liquids
US4593837A (en) * 1985-03-15 1986-06-10 Eastman Kodak Company Variable volume pipette

Also Published As

Publication number Publication date
EP0250243A2 (en) 1987-12-23
EP0250243B1 (en) 1992-02-26
GB8614899D0 (en) 1986-07-23
ATE72773T1 (en) 1992-03-15
ES2029476T3 (en) 1992-08-16
DE3776818D1 (en) 1992-04-02

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