GB1522552A - Pumping systems - Google Patents
Pumping systemsInfo
- Publication number
- GB1522552A GB1522552A GB503276A GB503276A GB1522552A GB 1522552 A GB1522552 A GB 1522552A GB 503276 A GB503276 A GB 503276A GB 503276 A GB503276 A GB 503276A GB 1522552 A GB1522552 A GB 1522552A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- piston
- feb
- casing
- liquid
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/36—Control of physical parameters of the fluid carrier in high pressure liquid systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0676—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on flow sources
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
- G01N2030/326—Control of physical parameters of the fluid carrier of pressure or speed pumps
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Electromagnetic Pumps, Or The Like (AREA)
- Reciprocating Pumps (AREA)
Abstract
1522552 Reciprocating pumps SHANDON SOUTHERN PRODUCTS Ltd 8 Feb 1977 [9 Feb 1976] 5032/76 Heading F1A [Also in Division G3] A double-acting reciprocating pump 26 for providing a controlled flow of pressurized liquid (to a chromatographic column) comprises a shaft 25 which carries a piston 32 sealed to the bore of casing 27 by a ring 30. The shaft has a threaded portion 24 so that it is reciprocated as a ball nut 22 is rotated by electric stepping motor 21 in alternate directions. Motor reversal is provided by micro-switches 40a, b operated by a shaft lug 39. The liquid input 37 and output 38 are connected to the casing on both sides of the piston via non- return valves 36a-d. As the piston moves to the right, for example, liquid enters via valve 36a and leaves via valve 36d.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB503276A GB1522552A (en) | 1977-02-08 | 1977-02-08 | Pumping systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB503276A GB1522552A (en) | 1977-02-08 | 1977-02-08 | Pumping systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1522552A true GB1522552A (en) | 1978-08-23 |
Family
ID=9788461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB503276A Expired GB1522552A (en) | 1977-02-08 | 1977-02-08 | Pumping systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1522552A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7908056A (en) * | 1979-11-02 | 1981-06-01 | Inst Neftechimicheskogo Sintez | Eluting agent stream for liq. chromatography - passed to the column under osmotic press. from a soln. of a prod. held at constant concn. |
EP0231566A1 (en) * | 1986-02-05 | 1987-08-12 | Magnetopulse Ltd. | Improvements in and relating to liquid chromatography |
WO2016120822A1 (en) * | 2015-01-28 | 2016-08-04 | Corob S.P.A. Con Socio Unico | Double-chamber piston pump for the distribution of fluid products |
-
1977
- 1977-02-08 GB GB503276A patent/GB1522552A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7908056A (en) * | 1979-11-02 | 1981-06-01 | Inst Neftechimicheskogo Sintez | Eluting agent stream for liq. chromatography - passed to the column under osmotic press. from a soln. of a prod. held at constant concn. |
EP0231566A1 (en) * | 1986-02-05 | 1987-08-12 | Magnetopulse Ltd. | Improvements in and relating to liquid chromatography |
WO2016120822A1 (en) * | 2015-01-28 | 2016-08-04 | Corob S.P.A. Con Socio Unico | Double-chamber piston pump for the distribution of fluid products |
KR20180012732A (en) * | 2015-01-28 | 2018-02-06 | 크롭 에스.피.에이. 콘 소시오 유니코 | Dual chamber piston pump for fluid product distribution |
CN107873072A (en) * | 2015-01-28 | 2018-04-03 | 克洛布单股东股份公司 | For distributing the double volume room piston pump of fluid product |
US10767638B2 (en) | 2015-01-28 | 2020-09-08 | Corob S.P.A. | Double-chamber piston pump for the distribution of fluid products |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |