GB1399397A - Fluid flow control arrangements - Google Patents
Fluid flow control arrangementsInfo
- Publication number
- GB1399397A GB1399397A GB4589972A GB4589972A GB1399397A GB 1399397 A GB1399397 A GB 1399397A GB 4589972 A GB4589972 A GB 4589972A GB 4589972 A GB4589972 A GB 4589972A GB 1399397 A GB1399397 A GB 1399397A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- restrictor element
- restrictor
- bore
- holder
- 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
- G01N30/60—Construction of the column
- G01N30/6004—Construction of the column end pieces
-
- 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
- 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
- G01N2030/324—Control of physical parameters of the fluid carrier of pressure or speed speed, flow rate
-
- 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
- G01N30/60—Construction of the column
- G01N30/6004—Construction of the column end pieces
- G01N2030/6008—Construction of the column end pieces capillary restrictors
-
- 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
- G01N30/60—Construction of the column
- G01N30/6004—Construction of the column end pieces
- G01N2030/6013—Construction of the column end pieces interfaces to detectors
-
- 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
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
- G01N30/10—Preparation using a splitter
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
1399397 Flow restrictor for gas chromatograph PYE LTD 5 Oct 1972 45899/72 Heading B1H In a fluid flow restrictor arrangement for gas analysis equipment including a tube through which gas may flow and a restrictor element to impede such flow secured in holding means which, extends from one end of the tube, the holding means includes or consists entirely of a generally tubular member which is secured to the tube and with has a bore extending away from said end of the tube for communicating with an operative device or another tube to which the tube is to be coupled, and the restrictor element is a mass of porous material which has been packed by packing means against a shoulder at the end of said bore nearest the tube to secure the restrictor element in the bore, the degree of packing having ensured that in the absence of the packing means the restrictor element is sufficiently rigid to retain its shape and position in the bore and its required degree of impedance, the arrangement being such that disconnection and withdrawal of the tube from said operative device or other tube will cause the holding means and the restrictor element to be withdrawn with the tube so that the restrictor element can be removed from the equipment for examination or replacement. In one embodiment a holder 2 is biased to the end of a tube 1. The holder has a constriction; one side of this forms a seat for the tube, the other forms a shoulder 3 against which a sintered mass 5 of stainless steel, aluminium, brass or PTFE is packed. The holder 2 may have an external flange to allow it to be fixed in a screw coupling (Fig 3 not shown).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4589972A GB1399397A (en) | 1972-10-05 | 1972-10-05 | Fluid flow control arrangements |
DE19732349422 DE2349422A1 (en) | 1972-10-05 | 1973-10-02 | FLUID FLOW RATE CONTROL DEVICE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4589972A GB1399397A (en) | 1972-10-05 | 1972-10-05 | Fluid flow control arrangements |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1399397A true GB1399397A (en) | 1975-07-02 |
Family
ID=10439031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4589972A Expired GB1399397A (en) | 1972-10-05 | 1972-10-05 | Fluid flow control arrangements |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2349422A1 (en) |
GB (1) | GB1399397A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4594159A (en) * | 1983-11-17 | 1986-06-10 | Pharmacia Ab | Process and apparatus for applying back pressure in a liquid chromatography system |
US5478378A (en) * | 1993-01-15 | 1995-12-26 | Scientific Glass Technology Exploitatie B.V. | Filter with quick-change coupling for cleaning gases |
WO2000040961A1 (en) * | 1998-12-30 | 2000-07-13 | Varian B.V. | Gaschromatographic device comprising an inlet system, a column and a pressure reducing means |
WO2002014853A1 (en) * | 2000-08-16 | 2002-02-21 | Novartis Ag | Microflow splitter |
US6576047B2 (en) * | 2001-01-10 | 2003-06-10 | Abb Patent Gmbh | Separation column for analyzing gases |
EP1431709A2 (en) * | 2002-12-19 | 2004-06-23 | ASML Holding N.V. | High-resolution gas gauge proximity sensor |
EP1431710A3 (en) * | 2002-12-19 | 2004-09-15 | ASML Holding N.V. | Liquid flow proximity sensor for use in immersion lithography |
US6978658B1 (en) | 2004-12-20 | 2005-12-27 | Asml Holding N.V. | Proximity sensor with self compensation for mechanism instability |
US7017390B1 (en) | 2004-12-07 | 2006-03-28 | Asml Holding N.V. | Proximity sensor nozzle shroud with flow curtain |
SG135007A1 (en) * | 2002-12-19 | 2007-09-28 | Asml Holding Nv | High-resolution gas gauge proximity sensor |
US7472580B2 (en) | 2005-12-30 | 2009-01-06 | Asml Holding N.V. | Pressure sensor |
US7537739B2 (en) | 2003-12-23 | 2009-05-26 | Hte Ag | Device and method for pressure and flow control in parallel reactors |
US7549321B2 (en) | 2005-12-29 | 2009-06-23 | Asml Holding N.V. | Pressure sensor |
EP3877759A4 (en) * | 2018-11-09 | 2022-07-27 | Western Sydney University | A chromatography component |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017124618B4 (en) * | 2017-10-20 | 2019-07-11 | Dionex Softron Gmbh | Compounds of capillaries, in particular for HPLC |
-
1972
- 1972-10-05 GB GB4589972A patent/GB1399397A/en not_active Expired
-
1973
- 1973-10-02 DE DE19732349422 patent/DE2349422A1/en active Pending
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4594159A (en) * | 1983-11-17 | 1986-06-10 | Pharmacia Ab | Process and apparatus for applying back pressure in a liquid chromatography system |
US5478378A (en) * | 1993-01-15 | 1995-12-26 | Scientific Glass Technology Exploitatie B.V. | Filter with quick-change coupling for cleaning gases |
WO2000040961A1 (en) * | 1998-12-30 | 2000-07-13 | Varian B.V. | Gaschromatographic device comprising an inlet system, a column and a pressure reducing means |
WO2002014853A1 (en) * | 2000-08-16 | 2002-02-21 | Novartis Ag | Microflow splitter |
US6576047B2 (en) * | 2001-01-10 | 2003-06-10 | Abb Patent Gmbh | Separation column for analyzing gases |
US7124624B2 (en) | 2002-12-19 | 2006-10-24 | Asml Holding N.V. | High-resolution gas gauge proximity sensor |
EP1431710A3 (en) * | 2002-12-19 | 2004-09-15 | ASML Holding N.V. | Liquid flow proximity sensor for use in immersion lithography |
US7010958B2 (en) | 2002-12-19 | 2006-03-14 | Asml Holding N.V. | High-resolution gas gauge proximity sensor |
EP1431709A3 (en) * | 2002-12-19 | 2004-09-15 | ASML Holding N.V. | High-resolution gas gauge proximity sensor |
US7021119B2 (en) | 2002-12-19 | 2006-04-04 | Asml Holding N.V. | Liquid flow proximity sensor for use in immersion lithography |
EP1431709A2 (en) * | 2002-12-19 | 2004-06-23 | ASML Holding N.V. | High-resolution gas gauge proximity sensor |
CN1296678C (en) * | 2002-12-19 | 2007-01-24 | Asml控股股份有限公司 | Liquid flow proximity sensor for use in immersion lithography |
SG135007A1 (en) * | 2002-12-19 | 2007-09-28 | Asml Holding Nv | High-resolution gas gauge proximity sensor |
CN100427881C (en) * | 2002-12-19 | 2008-10-22 | Asml控股股份有限公司 | High seeparation sharpness gasometer-type approach sensor |
US7472579B2 (en) | 2002-12-19 | 2009-01-06 | Asml Holding N.V. | Liquid flow proximity sensor for use in immersion lithography |
US7537739B2 (en) | 2003-12-23 | 2009-05-26 | Hte Ag | Device and method for pressure and flow control in parallel reactors |
US8383050B2 (en) | 2003-12-23 | 2013-02-26 | Hte Ag | Device and method for pressure and flow control in parallel reactors |
US7867458B2 (en) | 2003-12-23 | 2011-01-11 | Hte Aktiengesellschaft The High Throughtput Experimentation Company | Device and method for pressure and flow control in parallel reactors |
US7017390B1 (en) | 2004-12-07 | 2006-03-28 | Asml Holding N.V. | Proximity sensor nozzle shroud with flow curtain |
US7140233B2 (en) | 2004-12-07 | 2006-11-28 | Asml Holding N.V. | Immersion lithography proximity sensor having a nozzle shroud with flow curtain |
US6978658B1 (en) | 2004-12-20 | 2005-12-27 | Asml Holding N.V. | Proximity sensor with self compensation for mechanism instability |
US7549321B2 (en) | 2005-12-29 | 2009-06-23 | Asml Holding N.V. | Pressure sensor |
US7472580B2 (en) | 2005-12-30 | 2009-01-06 | Asml Holding N.V. | Pressure sensor |
EP3877759A4 (en) * | 2018-11-09 | 2022-07-27 | Western Sydney University | A chromatography component |
Also Published As
Publication number | Publication date |
---|---|
DE2349422A1 (en) | 1974-04-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1399397A (en) | Fluid flow control arrangements | |
GB1397162A (en) | Liquid sample collection tube | |
GB1270025A (en) | Device for taking a sample of fluid in a pressurised hydraulic circuit | |
US4628750A (en) | Integrated pump and sample vessel | |
ES420118A1 (en) | Device for controlling the flow of fluid through flexible tubes | |
GB1249150A (en) | Apparatus for monitoring heart blood pressure | |
GB1254375A (en) | Liquid sampling device | |
GB846589A (en) | Fluid sampler | |
GB1249126A (en) | Improvements in and relating to a liquid transmission apparatus | |
US3022670A (en) | Thermo-element | |
GB1335395A (en) | Intra-venous infusion device | |
SE7510582L (en) | PROCEDURE FOR SEPARATION OF A LIQUID VOLUME AND DEVICE FOR PERFORMING THE PROCEDURE | |
US2679163A (en) | Plug-in pitot-static tube | |
FR2250111A1 (en) | Presampling device for liquids - removes samples required for quality control analysis from continuously flowing liquid | |
US4117720A (en) | Electric measuring device having a small-bore liquid container with improved electrode sealing means | |
US3475964A (en) | Liquid injection device | |
GB1282353A (en) | Improvements in or relating to fluid flow indicating devices | |
US3149493A (en) | Fluid sampling device | |
US2934958A (en) | Gas sampling device | |
SE8804581D0 (en) | DEVICE FOR INTRAPLEURAL ANESTHESIA | |
GB1134101A (en) | Improvements in or relating to pressure devices | |
US3298236A (en) | Sampling device | |
US3879656A (en) | Electronic water detector | |
SU1292916A1 (en) | Isostatic device | |
Feinstein | A laboratory aid to speed-up filtration |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |