GB1433786A - Arrangement for metering of liquids - Google Patents
Arrangement for metering of liquidsInfo
- Publication number
- GB1433786A GB1433786A GB2366073A GB2366073A GB1433786A GB 1433786 A GB1433786 A GB 1433786A GB 2366073 A GB2366073 A GB 2366073A GB 2366073 A GB2366073 A GB 2366073A GB 1433786 A GB1433786 A GB 1433786A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- electrode
- liquid
- capillary
- earthed
- 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.)
- Expired
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
- B01L3/0241—Drop counters; Drop formers
- B01L3/0268—Drop counters; Drop formers using pulse dispensing or spraying, eg. inkjet type, piezo actuated ejection of droplets from capillaries
Landscapes
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sampling And Sample Adjustment (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
1433786 Drip delivery apparatus MAGYAR TUDOMANYOS AKADEMIA KUTATASI ESZKOZOKET KNITELEZO VALLALAT 17 May 1973 [18 May 1972] 23660/73 Heading B8N Small quantities of liquid are delivered from a capillary tube 2 when the liquid is charged by an electrode 8 connected to an interrupter switch 5, an earthed component 4 being positioned below the tube. The capillary tube 2 may be made of electrically conductive material and serve as the electrode. As shown in Fig. 1, the liquid 3 in the container 1 is prevented from escaping by the capillary action of the tube 2. When the switch 5 is closed, Fig. 2, electrical charges of like polarity are set up on the surface of the liquid at the orifice so that the electrical charges cause a repelling action and cause the drips to be formed and separated in regular succession. An earthed ring 4 promotes the separation and accelerates the dripping into a collecting vessel (6). The duration of the closing of the switch is proportional to the quantity dispensed. In Fig. 3 (not shown) the collecting vessel (6) is earthed and the ring 4 is replaced by a ring-shaped electrical grid (9) which is supplied with a voltage lower than that to the electrode. In Fig. 4 (not shown) the diameter of the capillary tube is increased and a cylindrical pin extends into the tube to provide the capillary; if desired, the pin may serve as the electrode.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HUSE001626 HU164836B (en) | 1972-05-18 | 1972-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1433786A true GB1433786A (en) | 1976-04-28 |
Family
ID=11001385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2366073A Expired GB1433786A (en) | 1972-05-18 | 1973-05-17 | Arrangement for metering of liquids |
Country Status (8)
| Country | Link |
|---|---|
| BE (1) | BE798414A (en) |
| DE (1) | DE2317670A1 (en) |
| ES (1) | ES414282A1 (en) |
| GB (1) | GB1433786A (en) |
| HU (1) | HU164836B (en) |
| IT (1) | IT986293B (en) |
| NL (1) | NL7306688A (en) |
| SE (1) | SE390491B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001071311A2 (en) * | 2000-03-17 | 2001-09-27 | Nanostream, Inc. | Electrostatic systems and methods for dispensing droplets |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1541915A (en) * | 1975-01-30 | 1979-03-14 | Eastman Kodak Co | Fluid dispenser |
| FR2463920A1 (en) * | 1979-08-17 | 1981-02-27 | Commissariat Energie Atomique | LIQUID MICRODOSEUR DEVICE |
-
1972
- 1972-05-18 HU HUSE001626 patent/HU164836B/hu unknown
-
1973
- 1973-03-28 SE SE7304408A patent/SE390491B/en unknown
- 1973-04-05 DE DE19732317670 patent/DE2317670A1/en active Pending
- 1973-04-18 BE BE130177A patent/BE798414A/en unknown
- 1973-05-02 ES ES414282A patent/ES414282A1/en not_active Expired
- 1973-05-08 IT IT6828473A patent/IT986293B/en active
- 1973-05-14 NL NL7306688A patent/NL7306688A/xx unknown
- 1973-05-17 GB GB2366073A patent/GB1433786A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001071311A2 (en) * | 2000-03-17 | 2001-09-27 | Nanostream, Inc. | Electrostatic systems and methods for dispensing droplets |
| WO2001071311A3 (en) * | 2000-03-17 | 2002-05-02 | Nanostream Inc | Electrostatic systems and methods for dispensing droplets |
Also Published As
| Publication number | Publication date |
|---|---|
| HU164836B (en) | 1974-04-11 |
| DE2317670A1 (en) | 1973-11-29 |
| NL7306688A (en) | 1973-11-20 |
| SE390491B (en) | 1976-12-27 |
| BE798414A (en) | 1973-08-16 |
| IT986293B (en) | 1975-01-20 |
| ES414282A1 (en) | 1976-01-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |