ATE4290T1 - PROCESS FOR RESIDUE-FREE DOSING OF SMALL QUANTITIES OF LIQUID. - Google Patents
PROCESS FOR RESIDUE-FREE DOSING OF SMALL QUANTITIES OF LIQUID.Info
- Publication number
- ATE4290T1 ATE4290T1 AT80104407T AT80104407T ATE4290T1 AT E4290 T1 ATE4290 T1 AT E4290T1 AT 80104407 T AT80104407 T AT 80104407T AT 80104407 T AT80104407 T AT 80104407T AT E4290 T1 ATE4290 T1 AT E4290T1
- Authority
- AT
- Austria
- Prior art keywords
- liquid
- cylinder
- piston
- residue
- small quantities
- Prior art date
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)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Measuring Volume Flow (AREA)
- Indole Compounds (AREA)
- Steroid Compounds (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Saccharide Compounds (AREA)
- Materials For Medical Uses (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Sampling And Sample Adjustment (AREA)
- Details Of Reciprocating Pumps (AREA)
- Physical Or Chemical Processes And Apparatus (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 |
|---|---|---|---|
| DE19792933617 DE2933617A1 (en) | 1979-08-20 | 1979-08-20 | MICRO PISTON PUMP |
| EP80104407A EP0024313B1 (en) | 1979-08-20 | 1980-07-26 | Method of residue-free dispensing of small amounts of liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE4290T1 true ATE4290T1 (en) | 1983-08-15 |
Family
ID=6078839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT80104407T ATE4290T1 (en) | 1979-08-20 | 1980-07-26 | PROCESS FOR RESIDUE-FREE DOSING OF SMALL QUANTITIES OF LIQUID. |
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) | ES494358A0 (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 | DEVICE FOR TAKING AND / OR DELIVERY OF LOW DOSE QUANTITIES OF LIQUID |
| 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 AT AT80104407T patent/ATE4290T1/en not_active IP Right Cessation
- 1980-07-26 EP EP80104407A patent/EP0024313B1/en not_active Expired
- 1980-07-26 DE DE8080104407T patent/DE3064407D1/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 ES ES494358A patent/ES494358A0/en active Granted
- 1980-08-19 JP JP11391680A patent/JPS5632082A/en active Pending
- 1980-08-19 NZ NZ194707A patent/NZ194707A/en unknown
- 1980-08-19 AU AU61568/80A patent/AU544213B2/en not_active Ceased
- 1980-08-19 IE IE1752/80A patent/IE50187B1/en unknown
- 1980-08-19 DK DK356980A patent/DK147844C/en not_active IP Right Cessation
- 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 |
| FI67434C (en) | 1985-03-11 |
| FI802588A (en) | 1981-02-21 |
| IE50187B1 (en) | 1986-03-05 |
| ZA805103B (en) | 1982-04-28 |
| AU6156880A (en) | 1981-04-09 |
| DK147844C (en) | 1985-06-03 |
| ES8105829A1 (en) | 1981-06-16 |
| EP0024313A1 (en) | 1981-03-04 |
| DE3064407D1 (en) | 1983-09-01 |
| NO155358C (en) | 1987-03-18 |
| DK356980A (en) | 1981-02-21 |
| CA1152379A (en) | 1983-08-23 |
| DK147844B (en) | 1984-12-24 |
| AU544213B2 (en) | 1985-05-23 |
| ES494358A0 (en) | 1981-06-16 |
| JPS5632082A (en) | 1981-04-01 |
| NO155358B (en) | 1986-12-08 |
| EP0024313B1 (en) | 1983-07-27 |
| NO802439L (en) | 1981-02-23 |
| NZ194707A (en) | 1984-11-09 |
| IE801752L (en) | 1981-02-20 |
| IL60854A0 (en) | 1980-10-26 |
| DE2933617A1 (en) | 1981-03-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| REN | Ceased due to non-payment of the annual fee |