AU544213B2 - Metering small quantities - Google Patents
Metering small quantitiesInfo
- Publication number
- AU544213B2 AU544213B2 AU61568/80A AU6156880A AU544213B2 AU 544213 B2 AU544213 B2 AU 544213B2 AU 61568/80 A AU61568/80 A AU 61568/80A AU 6156880 A AU6156880 A AU 6156880A AU 544213 B2 AU544213 B2 AU 544213B2
- Authority
- AU
- Australia
- Prior art keywords
- cylinder
- piston
- liquid
- dead centre
- small quantities
- 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.)
- Ceased
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/0003—Piston machines or pumps characterised by having positively-driven valving the distribution member forming both the inlet and discharge distributor for one single pumping chamber
- F04B7/0015—Piston machines or pumps characterised by having positively-driven valving the distribution member forming both the inlet and discharge distributor for one single pumping chamber and having a slidable movement
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Reciprocating Pumps (AREA)
- Measuring Volume Flow (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Materials For Medical Uses (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Details Of Reciprocating Pumps (AREA)
- Sampling And Sample Adjustment (AREA)
- Saccharide Compounds (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Steroid Compounds (AREA)
- Indole Compounds (AREA)
Abstract
1. Process for metering small quantities of liquid without leaving a residue by means of a micro-piston pump having a capillary cylinder in which a piston, which fits in gastight manner therein, is mounted so as to be movable between a top dead centre and a bottom dead centre, the cylinder at its end located opposite the base of the piston opening into a twoway valve which connects the space in the cylinder alternately to an inlet and to an outlet (which connects the cylinder to the atmosphere during the first stage of the intake operation), characterised in that the piston and the valve are moved in such a way that, during the intake operation, first a defined quantity of air and then a defined quantity of liquid is transported into the cylinder, the quantity of air being such that, as the piston moves downwards to bottom dead centre, all the liquid is expelled through the outlet line.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29336172 | 1979-08-20 | ||
| DE19792933617 DE2933617A1 (en) | 1979-08-20 | 1979-08-20 | MICRO PISTON PUMP |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU6156880A AU6156880A (en) | 1981-04-09 |
| AU544213B2 true AU544213B2 (en) | 1985-05-23 |
Family
ID=6078839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU61568/80A Ceased AU544213B2 (en) | 1979-08-20 | 1980-08-19 | Metering small quantities |
Country Status (14)
| Country | Link |
|---|---|
| EP (1) | EP0024313B1 (en) |
| JP (1) | JPS5632082A (en) |
| AT (1) | ATE4290T1 (en) |
| AU (1) | AU544213B2 (en) |
| CA (1) | CA1152379A (en) |
| DE (2) | DE2933617A1 (en) |
| DK (1) | DK147844C (en) |
| ES (1) | ES8105829A1 (en) |
| FI (1) | FI67434C (en) |
| IE (1) | IE50187B1 (en) |
| IL (1) | IL60854A0 (en) |
| NO (1) | NO155358C (en) |
| NZ (1) | NZ194707A (en) |
| ZA (1) | ZA805103B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6520755B1 (en) * | 2000-10-10 | 2003-02-18 | Beckman Coulter, Inc. | Fluid-moving device with integrated valve |
| CN109573124A (en) * | 2018-12-29 | 2019-04-05 | 河南官渡生物工程有限公司 | The plunger pump of adjustable filling amount for veterinary drug production |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE254111C (en) * | ||||
| DE125606C (en) * | ||||
| GB1109492A (en) * | 1964-04-29 | 1968-04-10 | Snam Spa | Improvements in or relating to hydraulic reciprocating pumps |
| JPS4935904A (en) * | 1972-08-09 | 1974-04-03 | ||
| FR2319117A1 (en) * | 1975-07-25 | 1977-02-18 | Pasteur Institut | Syringe for use with small quantities of liquid - measures quantity by displacement of calibrated wire inside a capillary tube |
| US4022065A (en) * | 1976-02-19 | 1977-05-10 | Ramin James A | Calibrated sample delivery apparatus accommodating offset error |
| US4061037A (en) * | 1976-09-20 | 1977-12-06 | Keegan William P | Pipettes |
| US4091677A (en) * | 1976-12-23 | 1978-05-30 | Nichiryo Co., Ltd. | Pipetting apparatus |
| JPS541422A (en) * | 1977-06-06 | 1979-01-08 | Citizen Watch Co Ltd | Fixed quantity of liquid supplying device |
-
1979
- 1979-08-20 DE DE19792933617 patent/DE2933617A1/en not_active Withdrawn
-
1980
- 1980-07-26 DE DE8080104407T patent/DE3064407D1/en not_active Expired
- 1980-07-26 AT AT80104407T patent/ATE4290T1/en not_active IP Right Cessation
- 1980-07-26 EP EP80104407A patent/EP0024313B1/en not_active Expired
- 1980-08-15 NO NO802439A patent/NO155358C/en unknown
- 1980-08-18 FI FI802588A patent/FI67434C/en not_active IP Right Cessation
- 1980-08-18 IL IL60854A patent/IL60854A0/en unknown
- 1980-08-19 AU AU61568/80A patent/AU544213B2/en not_active Ceased
- 1980-08-19 NZ NZ194707A patent/NZ194707A/en unknown
- 1980-08-19 ES ES494358A patent/ES8105829A1/en not_active Expired
- 1980-08-19 DK DK356980A patent/DK147844C/en not_active IP Right Cessation
- 1980-08-19 JP JP11391680A patent/JPS5632082A/en active Pending
- 1980-08-19 IE IE1752/80A patent/IE50187B1/en unknown
- 1980-08-20 ZA ZA00805103A patent/ZA805103B/en unknown
- 1980-08-20 CA CA000358674A patent/CA1152379A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FI67434B (en) | 1984-11-30 |
| AU6156880A (en) | 1981-04-09 |
| DE3064407D1 (en) | 1983-09-01 |
| NZ194707A (en) | 1984-11-09 |
| ES494358A0 (en) | 1981-06-16 |
| EP0024313B1 (en) | 1983-07-27 |
| NO802439L (en) | 1981-02-23 |
| EP0024313A1 (en) | 1981-03-04 |
| CA1152379A (en) | 1983-08-23 |
| DE2933617A1 (en) | 1981-03-26 |
| IE50187B1 (en) | 1986-03-05 |
| IE801752L (en) | 1981-02-20 |
| DK147844B (en) | 1984-12-24 |
| JPS5632082A (en) | 1981-04-01 |
| FI802588A (en) | 1981-02-21 |
| NO155358B (en) | 1986-12-08 |
| ATE4290T1 (en) | 1983-08-15 |
| NO155358C (en) | 1987-03-18 |
| ZA805103B (en) | 1982-04-28 |
| ES8105829A1 (en) | 1981-06-16 |
| DK147844C (en) | 1985-06-03 |
| IL60854A0 (en) | 1980-10-26 |
| DK356980A (en) | 1981-02-21 |
| FI67434C (en) | 1985-03-11 |
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