WO2005084337A2 - A self-setting high pressure fitting - Google Patents
A self-setting high pressure fitting Download PDFInfo
- Publication number
- WO2005084337A2 WO2005084337A2 PCT/US2005/006755 US2005006755W WO2005084337A2 WO 2005084337 A2 WO2005084337 A2 WO 2005084337A2 US 2005006755 W US2005006755 W US 2005006755W WO 2005084337 A2 WO2005084337 A2 WO 2005084337A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sealing element
- male
- female
- fluid
- conical
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/006—Screw-threaded joints; Forms of screw-threads for such joints with straight threads
- F16L15/009—Screw-threaded joints; Forms of screw-threads for such joints with straight threads with axial sealings having at least one plastically deformable sealing surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
- F16L19/0225—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means without sealing rings
-
- 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
- G01N30/6026—Fluid seals
Definitions
- This invention relates generally to connectors for tube assemblies, and, more particularly, to a self-setting high pressure fitting for creating a high pressmre seal.
- High pressure systems are routinely employed in analytical laboratories, for example, in the isolation and characterization of a particular compound.
- compression ferrules are used fluid line connectors in high pressure systems such as high performance liquid chromatography. These compression ferrules are relatively small structures that cooperate with one or two-piece tube fittings. These devices require precise machining of detailed ports where t ⁇ vo fluid lines connect together, or where the fluid lines interconnect to components such as fluid manifolds and valves. As the number of these fluid interconnections increase the consequential cost of machined parts and the cost of production tooling increases.
- the present fittings comprise a conical ferrule and a compression rrut which are proximate to the tube end.
- the mating part has a threaded and conical -machined recess at the receiving port which cooperates with the tube end compression nut and ferrule to make a seal.
- the seal is achieved by the compression deformation of the ferrule by the port cone and by the compression deformation of the ferrule against the tube outside surface.
- Modern chromatographic system pressures are becoming greater than the present fittings are designed to sustain. The greater deformations needed to achieve sealing results in reduced reliability of the seals.
- the present fittings When the present fittings are assembled they sometimes have a characteristic which is detrimental to the quality of the chromatographic separation.
- a high pressure tube seating assembly wherein the seal is formed at a contact interface between a spherical distal end portion of a tube and a receiving surface. It is believed that as greater axial force is applied, the spherical distal portion deforms to more closely approximate the geometry of the receiving surface. However, in actuality, as greater axial pressure is applied, the spherical distal portion deforms but does not deform in such as manner as to significantly compliment the receiving surface. In modern chromatographic systems pressures are being increased and the internal fluid volumes are being reduced. Therefore the reliability and seal characteristics of present fittings are becoming problematic.
- the present fitting has two seal surfaces which are both relatively larger than the fluid path diameter they are sealing.
- the present invention relates to a coupling element that is capable of axial displacement for use in a high pressure seal.
- This coupling element upon axial compression forms a fluid-tight seal.
- a coupling element comprising a male sealing element is disclosed herein.
- the male sealing element comprises a first end, second end, and a longitudinal axis extending between the first and second end.
- the coupling element is housed within a nut.
- the male sealing element has a generally cylindrical shape.
- the male sealing element defines a fluid passageway therethrough for the transmission of fluid.
- the male sealing element is secured to a ferrule which is located within a cavity of the nut.
- the first end of the male sealing element defines a conical sealing surface.
- the male conical sealing surface mates with a female sealing element which has a receptacle that is defined by a nearly complementary conical geometry.
- the male conical sealing surface has a mismatched angle when compared to the complementary conical female sealing element.
- the coupling element also has a biasing element disposed between a retaining ring and the ferrule located within the nut cavity. This biasing element facilitates a fluid-tight, metal to metal (or metal to plastic, or plastic to plastic) seal between the male sealing element and female sealing element.
- a method of forming a high pressure seal is disclosed herein. An axial compression force can be applied to the male sealing element of the present invention. This compression force will displace the male sealing element toward a female sealing element.
- the male sealing element has a first end which defines a conical sealing surface.
- the female sealing element has a receptacle that defines a complementary conical geometry. There is a mismatch angle between the male conical surface and the female sealing element in this aspect. Deformation of the males first end conical surface occurs as the axial compression force is applied, thereby effectuating a fluid-tight seal.
- Figure 1 is a schematic of one embodiment of the present invention
- Figure 2 depicts a side by side comparison of an embodiment of the present invention with a typical coupling system in the prior art
- Figure 3 depicts the mismatched angle formed between a male and female element of the present invention.
- the present invention relates to a coupling element that is capable of axial displacement for use in a high pressure seal.
- This coupling element upon axial compression forms a fluid-tight seal.
- the coupling element of the present invention makes a seal just outside the fluid path's outer diameter so that it is as small and tight as possible. This eliminates dead-volume and minimizes seal force. Since the seal force is provided by a preset spring deflection, the coupling element is not subject to make-up error or to variations in seal from port to port. Pre-set fitting force also eliminates distortion due to over tightening.
- a coupling element 1 comprising a male sealing element 5 is disclosed herein. See FIG. 1.
- the male sealing element 5 comprises a first end 7, second end 9, and a longitudinal axis extending between the first 7 and second end 9.
- the coupling element 5 is housed within a nut 3.
- the male sealing element 5 has a generally cylindrical shape.
- the male sealing element 5 defines a fluid passageway therethrough for the transmission of fluid.
- the male sealing element 5 is secured in a ferrule 13 which is located within a cavity 15 of the distal portion of the nut 3.
- the first end 7 of the male sealing element 5 defines a conical sealing surface 17.
- the conical sealing surface 17 extends or protrudes beyond the proximal portion of the nut housing 33. This extension is about 0.030" nominally.
- the male conical sealing surface 17 mates with a female sealing element 23 which has a receptacle 25 that is defined by a nearly complementary conical geometry. See FIG. 2a.
- the male conical sealing surface 17 has a mismatched angle when compared to the complementary conical female sealing element 23.
- the coupling element 1 also has a pair of biasing elements 19 disposed between a retaining ring 21 and the femile 13 located within the nut cavity 15. See FIG. 1. The biasing elements 19 facilitates a fluid-tight, metal to metal seal between the male sealing element 5 and female sealing element 23.
- the male element 5 can comprise stainless steel
- the female element 23 can comprise a polymeric material such as polyphenelyne sulfide.
- the coupling element 1 has a longitudinal axis ranging from about 0.5" to about 0.7". The longitudinal axis being defined herein as the distance from the tip of the apical surface 17 of the male element 5 to the distal termination of the nut housing 33.
- Typical diameters for the male sealing element range from about 0.031 "to about 0.094".
- the proximal portion of the male element 5 tapers forming, for example, a conical surface whose diameter changes as the geometry defines a conical surface.
- Materials suitable for the male element 5 include, but are not limited to, stainless steel, PEEK, polyphenelyne sulfide, ceramic, polyamide, polyolefins, and alike.
- the apical tip of the male element 5 can have a material different the rest of the male element.
- the male tip can have a coating that would enhance sealing such as Teflon film.
- the nut 3 is defined by a nut housing 33.
- the nut housing 33 generally encompasses a portion of the male element 5.
- a portion of the external surface of the nut housing 33 is defined by threads, for example, 10/32 or M4 threads.
- the general surface geometry of the nut housing 33 can follow that which is in the prior art and well known to those skilled in the art.
- the length of from the distal surface 29 of the nut housing 33 to the proximal surface 31 of the nut housing 33 ranges from about 0.5" to about 0.7".
- the diameter of the nut 3 changes as the perspective changes from the distal surface 29 to the proximal surface 31.
- the diameter of the nut housing 33 is greater than the male element 5.
- the male element 5 has a diameter ranging from about 0.031 " to about 0.094".
- the ratio of diameter between the conical tip 17 of the male element 5 with the remaining portion of the element 5 is about 4 to 1.
- Suitable materials for the nut housing 33 include, but are not limited to, stainless steel, PEEK, polyphenelyne sulfide, ceramic, polyamide, polyolefins, and alike.
- the nut 3 also defines a cavity 15 toward the distal portion of the nut 3.
- the retaining ring 21 assists in retaining the integrity of the other elements within the nut 3. It also provides a surface for the biasing element 19 to be biased against as axial force is being applied. In one aspect, this force is applied as the nut 3 is threaded into a receptacle, such as the female sealing element 23 depicted in FIG. 2.
- the retaining ring 21 is disposed circumferentially about the interior of the nut cavity 15. In one aspect, the retaining ring 21 is disposed within a groove defined by the nut housing 33.
- the retaining ring 21 can comprise stainless steel as well as other suitable materials.
- the biasing element 19 is disposed adjacent to the retaining ring 21.
- the biasing element 19 comprises a compression spring.
- the biasing element 19 comprises two Belleville springs in series. In this aspect, the Belleville springs are compressed approximately 0.008" nominally.
- Other examples of a biasing element include, but are not limited to, wave springs, elastomer washers, and alike.
- the biasing element 19 is disposed adjacent to a ferrule 13. In one aspect, as axial force is applied, the biasing element 19 is biased between the retaining ring 21 and the ferrule 13.
- Suitable materials for the biasing element 19 include, but are not limited to, stainless steel, PEEK, coated steel, and alike.
- Ferrule 13 lies within the nut cavity 15.
- the ferrule 13 is physically attached to the male element 5. This attachment can be accomplished by any method known to those skilled in the art, such as welding, resistance welding, electron beam welding, laser welding, brazing, and alike.
- the ferrule 13 is disposed adjacent to the biasing element 19 on its distal surface.
- cavity space 27 separates the proximal surface of the ferrule 13 from an edge of nut housing 33.
- this cavity space 27 continuously with cavity 15 becomes smaller as the edge of the nut housing 33 approaches the proximal surface (the surface disposed toward the conical tip 17 of the male element 5) of the ferrule 13.
- FIG. 2a compares the present invention (FIG. 2a) with a typical coupling system in the prior art (FIG. 2b).
- FIG. 2a depicts the mating between a coupling element 1 of the present invention and a female sealing element 23.
- the male sealing element 5 has a first end 7 whose apical surface 17 is defined by a conical geometry.
- the receiving element of the female sealing element 23, i.e., the receptacle 25, has a complementary conical geometry.
- This complementary design facilitates a fluid-tight seal between the male sealing element 5 and the female sealing element 23. This design also promotes centering of the male element 5 about the female element 23.
- the male element 5 As axial compression is applied, the male element 5 is displaced toward the female element 23, in particular, the female receptacle 25. As the applied force is increased, the apical portion of the first end 7 of the male element 5 deforms (as indicated by the anows in FIG. 2) providing a surface to surface seal between the male element 5 and female element 23. A closer examination of the elements involved at the juncture of the seal reveals that there is a mismatch of angles between the conical apical surface 17 of the male element 5 and the receptacle 25 of the female element 23. See FIG. 3. In one aspect, this mismatched angle ranges from 1 to 2 degrees. This offset provides a functional advantage.
- the coupling system of the present invention (FIG. 2a) is contrasted with a typical coupling system of the prior art.
- the coupling system of the present invention comprises a male sealing element 5 interfacing with a female sealing element 23.
- the apical portion 17 of the first end 7 of the male element 5 is defined by a conical geometry.
- the female receptacle 25 receives the male element 5 and is defined by a complementary conical geometry. As depicted in FIG. 3, the angle of the male apical portion 17 and the female receptacle 25 are mismatched, thus facilitating greater contact between the male 5 and female 23 elements.
- Figure 2b depicts a typical coupling system found in the prior art. In this coupling system, there is a male element 5' that is received by a female element 23'. As axial force is applied to the male element 5', this element 5' is driven into a female receptacle 25' of the female element 23'. Deformation occurs at the apical portion of the male element 5'. However, as shown in FIG.
- the apical portion of the male element 5' is spherical, thus when compared with the present invention, less contact is made between the male 5' and female 23' elements. Additionally, there is no mismatch of angles between the male 5' and female 23' elements, thus even less contact forces are going to be operative. Further, due to the spherical geometry of the male element 5', centering of the male element 5' about the female 23' element is less likely as compared to the present invention.
- the coupling system depicted in FIG. 2b is not well suited to sealing under high pressure. A method of forming a high pressure seal is disclosed herein. An axial compression force can be applied to the male sealing element of the present invention.
- the male sealing element has a first end which defines a conical sealing surface.
- the female sealing element defines a nearly complementary conical geometry. There is a mismatch angle between the male conical surface and the female sealing element in this aspect. Deformation of the male's first end conical surface occurs as the axial compression force is applied, thereby effectuating a fluid-tight seal. As the axial force on the male element is applied, the apical portion of the first end deforms elastically in cooperation with the conical female receptacle in the female element. In order to increase the sealing, the axial force is increased thereby increasing both the seal pressure and the seal area.
- the sealing surfaces are nearly matching cones enhances the coupling's ability to tolerate normal axial mis-alignments between seal members.
- the male (cone) element pressed into the female receptacle will tend to be self-aligning. This will create a seal when the degree of mis-alignment (linear offset or angular offset) may have prevented sealing, or caused occluded flow with other coupling styles.
- the relative axial force should be in the range of between about 50 to about 651bs. Given the small surface area at the contact interface, the axial forces will concentrated there at creating a sealing pressure in range from about 40,000 to about 50,000 psi.
- Some of the advantages to the present invention include, but are not limited to, an increase in seal pressure due to wedging of the male and female elements; an increase in seal area with increase in pressure; an ability to seek the center (auto-align) as the male element is inserted into the female receptacle, this alignment avoids occlusion of flow by mis-centered placement of the male and female elements; and an ability to accommodate non-aligned parts due to fabrication errors.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/597,829 US7735878B2 (en) | 2004-03-02 | 2005-03-02 | Self-setting high pressure fitting |
GB0618615A GB2428456B (en) | 2004-03-02 | 2005-03-02 | Self-setting high pressure fitting |
DE112005000181.4T DE112005000181B4 (en) | 2004-03-02 | 2005-03-02 | Self-adjusting high pressure fitting |
JP2007501945A JP5106096B2 (en) | 2004-03-02 | 2005-03-02 | Self-adjusting high pressure fitting |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US54918304P | 2004-03-02 | 2004-03-02 | |
US60/549,183 | 2004-03-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005084337A2 true WO2005084337A2 (en) | 2005-09-15 |
WO2005084337A3 WO2005084337A3 (en) | 2006-01-12 |
Family
ID=34919448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2005/006755 WO2005084337A2 (en) | 2004-03-02 | 2005-03-02 | A self-setting high pressure fitting |
Country Status (5)
Country | Link |
---|---|
US (1) | US7735878B2 (en) |
JP (1) | JP5106096B2 (en) |
DE (1) | DE112005000181B4 (en) |
GB (1) | GB2428456B (en) |
WO (1) | WO2005084337A2 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010000324A1 (en) * | 2008-07-04 | 2010-01-07 | Agilent Technologies, Inc. | Sealing ferrule assembly exerting grip on capillary |
WO2011076244A1 (en) | 2009-12-21 | 2011-06-30 | Agilent Technologies, Inc. | Fitting element with front side seal |
EP2404094A1 (en) * | 2009-03-05 | 2012-01-11 | The Gates Corporation | Tube connector |
WO2012010222A1 (en) | 2010-07-23 | 2012-01-26 | Agilent Technologies, Inc. | Fitting element with bio-compatible sealing |
DE102011075046A1 (en) | 2010-06-14 | 2012-04-26 | Legal Department, Ip Practice Group Agilent Technologies, Inc. | Mounting element with clamping force distributor |
WO2012084275A1 (en) | 2010-12-20 | 2012-06-28 | Agilent Technologies, Inc. | Sealed fluidic component comprising a composite material of different paek materials |
WO2013174421A1 (en) | 2012-05-22 | 2013-11-28 | Agilent Technologies, Inc. | Sealing element for a fluidic connection |
EP2741080A1 (en) * | 2012-12-05 | 2014-06-11 | CTC Analytics AG | Device and method for injecting a fluid in an analysing device |
DE202009019091U1 (en) | 2009-12-21 | 2016-05-23 | Agilent Technologies, Inc. - A Delaware Corporation - | Fitting element with front insert |
US9803782B2 (en) | 2010-05-03 | 2017-10-31 | Agilent Technologies, Inc. | Fitting element with hydraulic grip force element |
EP2810061B1 (en) * | 2012-02-01 | 2020-03-25 | Agilent Technologies, Inc. | Quick lock connector for connecting a capillary to a fluidic conduit of a fluidic component |
US11554330B2 (en) | 2017-12-12 | 2023-01-17 | Dionex Softron Gmbh | Plug units, particularly for HPLC, connection system and corresponding use |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070125435A1 (en) * | 2005-12-01 | 2007-06-07 | Curtis Michael L | Method and apparatus for installing fluid system components |
WO2011085353A1 (en) | 2010-01-11 | 2011-07-14 | Waters Technologies Corporation | Manifold for solvent mixing in liquid chromatography systems |
EP2718017B1 (en) * | 2011-06-06 | 2020-08-05 | Corsolutions, LLC | Fluidic interface |
EP3301338B1 (en) | 2011-06-20 | 2019-07-31 | Waters Technologies Corporation | Low carryover high pressure fluidic fitting |
WO2013095964A2 (en) * | 2011-12-21 | 2013-06-27 | Waters Technologies Corporation | Establishing fluidic connections between chromatography components |
US20150042089A1 (en) * | 2012-03-06 | 2015-02-12 | Waters Technologies Corporation | High pressure fitting for a liquid chromatography system |
US9010812B2 (en) * | 2012-03-07 | 2015-04-21 | Mettler-Toledo Autochem, Inc. | Reaction vessel probe adapter |
WO2014007820A1 (en) | 2012-07-05 | 2014-01-09 | Agilent Technologies, Inc. | Single-piece with undercut tapering part |
US10094494B2 (en) | 2015-06-26 | 2018-10-09 | Agilent Technologies, Inc. | Ferrule with features for softening ferrule crush and related methods |
USD805164S1 (en) | 2015-06-26 | 2017-12-12 | Agilent Technologies, Inc. | Ferrule |
DE102020111414A1 (en) * | 2020-04-27 | 2021-10-28 | Agilent Technologies, Inc. - A Delaware Corporation - | SAMPLE INJECTOR WITH TIP TIP THAT ENTERS NEEDLE HOLE |
EP4143562A1 (en) | 2020-04-29 | 2023-03-08 | Waters Technologies Corporation | Establishing fluidic connections between chromatography components |
US20220228681A1 (en) * | 2021-01-18 | 2022-07-21 | Perkinelmer Health Sciences, Inc | Finger-Tight Gas Chromatograph (GC) Column Connections |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4679824A (en) * | 1985-03-22 | 1987-07-14 | Alsthom | Fluid-tight coupling for two sections of a fluid line |
US5667255A (en) * | 1994-06-28 | 1997-09-16 | Usui Kokusai Sangyo Kaisha Ltd. | Joint structure for joining a branch member to a high pressure fuel rail |
US5848813A (en) * | 1993-10-21 | 1998-12-15 | Albrecht; David E. | Threaded port for fluid flow connection |
US6102449A (en) * | 1998-10-29 | 2000-08-15 | Agilent Technologies, In. | Connector for capillary tubing |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2208292A (en) * | 1938-07-08 | 1940-07-16 | Hanson Clutch And Machinery Co | Rotary joint |
US3067777A (en) * | 1960-06-07 | 1962-12-11 | John F Briscoe | Packless flow swivel |
US3973792A (en) * | 1974-01-14 | 1976-08-10 | Bodenseewerk Perkin-Elmer & Co. Gmbh | Connecting device for connecting chromatographic separating columns of glass |
US4121859A (en) * | 1975-02-06 | 1978-10-24 | The Perkin-Elmer Corporation | Pressure tight seal |
DE2617832A1 (en) * | 1975-05-02 | 1976-11-11 | Willy Gassert | QUICK COUPLING FOR CONNECTING AND REMOVING A HOSE OR PIPE FOR GAS OR LIQUID MEDIA |
SE406008B (en) * | 1975-12-30 | 1979-01-15 | Normark Olof Magnus | FRICTION COUPLING BETWEEN TWO ELEMENTS |
US4669756A (en) * | 1985-05-20 | 1987-06-02 | Technicon Instruments Corporation | Zero dead volume connector |
US4991883A (en) * | 1989-09-25 | 1991-02-12 | Ruska Laboratories, Inc. | Connection apparatus |
US5163722A (en) * | 1991-07-26 | 1992-11-17 | Ruska Laboratories, Inc. | Connection apparatus with ferrule forming structure |
US5601785A (en) * | 1991-12-23 | 1997-02-11 | Microsensor Technology, Inc. | Connector for detachable column cartridge for gas chromatograph |
US5344195A (en) * | 1992-07-29 | 1994-09-06 | General Electric Company | Biased fluid coupling |
US5234235A (en) * | 1992-11-30 | 1993-08-10 | Ruska Laboratories, Inc. | Connection apparatus |
US6050544A (en) * | 1997-09-11 | 2000-04-18 | Kvaerner Oilfield Products | Valve coupling device forming metal-to-metal seal |
US6193286B1 (en) * | 1998-02-27 | 2001-02-27 | Selerity Technologies Inc. | Device and method for connecting a fluid conduit to a receiving fitting |
US6585296B1 (en) * | 2000-10-23 | 2003-07-01 | Innovadyne Technologies, Inc. | Tube sealing assembly |
-
2005
- 2005-03-02 GB GB0618615A patent/GB2428456B/en active Active
- 2005-03-02 WO PCT/US2005/006755 patent/WO2005084337A2/en active Application Filing
- 2005-03-02 US US10/597,829 patent/US7735878B2/en active Active
- 2005-03-02 JP JP2007501945A patent/JP5106096B2/en active Active
- 2005-03-02 DE DE112005000181.4T patent/DE112005000181B4/en not_active Revoked
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4679824A (en) * | 1985-03-22 | 1987-07-14 | Alsthom | Fluid-tight coupling for two sections of a fluid line |
US5848813A (en) * | 1993-10-21 | 1998-12-15 | Albrecht; David E. | Threaded port for fluid flow connection |
US5667255A (en) * | 1994-06-28 | 1997-09-16 | Usui Kokusai Sangyo Kaisha Ltd. | Joint structure for joining a branch member to a high pressure fuel rail |
US6102449A (en) * | 1998-10-29 | 2000-08-15 | Agilent Technologies, In. | Connector for capillary tubing |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2474588B (en) * | 2008-07-04 | 2012-08-08 | Agilent Technologies Inc | Sealing ferrule assembly exerting grip on capillary |
GB2474588A (en) * | 2008-07-04 | 2011-04-20 | Agilent Technologies Inc | Sealing ferrule assembly exerting grip on capillary |
WO2010000324A1 (en) * | 2008-07-04 | 2010-01-07 | Agilent Technologies, Inc. | Sealing ferrule assembly exerting grip on capillary |
EP2404094A1 (en) * | 2009-03-05 | 2012-01-11 | The Gates Corporation | Tube connector |
EP2404094B1 (en) * | 2009-03-05 | 2013-01-16 | The Gates Corporation | Tube connector |
DE202009019091U1 (en) | 2009-12-21 | 2016-05-23 | Agilent Technologies, Inc. - A Delaware Corporation - | Fitting element with front insert |
WO2011076244A1 (en) | 2009-12-21 | 2011-06-30 | Agilent Technologies, Inc. | Fitting element with front side seal |
US9803782B2 (en) | 2010-05-03 | 2017-10-31 | Agilent Technologies, Inc. | Fitting element with hydraulic grip force element |
DE202011110632U1 (en) | 2010-06-14 | 2015-04-29 | Legal Department, Ip Practice Group Agilent Technologies, Inc. | Mounting element with clamping force distributor |
DE102011075046A1 (en) | 2010-06-14 | 2012-04-26 | Legal Department, Ip Practice Group Agilent Technologies, Inc. | Mounting element with clamping force distributor |
WO2012010222A1 (en) | 2010-07-23 | 2012-01-26 | Agilent Technologies, Inc. | Fitting element with bio-compatible sealing |
US10012621B2 (en) | 2010-12-20 | 2018-07-03 | Agilent Technologies, Inc. | Sealed fluidic component comprising a composite material of different paek materials |
WO2012084275A1 (en) | 2010-12-20 | 2012-06-28 | Agilent Technologies, Inc. | Sealed fluidic component comprising a composite material of different paek materials |
EP2810061B1 (en) * | 2012-02-01 | 2020-03-25 | Agilent Technologies, Inc. | Quick lock connector for connecting a capillary to a fluidic conduit of a fluidic component |
US11137378B2 (en) | 2012-02-01 | 2021-10-05 | Agilent Technologies, Inc. | Quick lock connector for connecting a capillary to a fluidic conduit of a fluidic component |
WO2013174421A1 (en) | 2012-05-22 | 2013-11-28 | Agilent Technologies, Inc. | Sealing element for a fluidic connection |
US9816647B2 (en) | 2012-05-22 | 2017-11-14 | Agilent Technologies, Inc. | Sealing element for a fluidic connection |
EP2741080A1 (en) * | 2012-12-05 | 2014-06-11 | CTC Analytics AG | Device and method for injecting a fluid in an analysing device |
US11554330B2 (en) | 2017-12-12 | 2023-01-17 | Dionex Softron Gmbh | Plug units, particularly for HPLC, connection system and corresponding use |
Also Published As
Publication number | Publication date |
---|---|
JP5106096B2 (en) | 2012-12-26 |
JP2007526429A (en) | 2007-09-13 |
GB2428456A (en) | 2007-01-31 |
DE112005000181T5 (en) | 2006-11-23 |
DE112005000181B4 (en) | 2018-02-22 |
GB0618615D0 (en) | 2006-11-01 |
WO2005084337A3 (en) | 2006-01-12 |
US7735878B2 (en) | 2010-06-15 |
US20070158942A1 (en) | 2007-07-12 |
GB2428456B (en) | 2008-07-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7735878B2 (en) | Self-setting high pressure fitting | |
US6585296B1 (en) | Tube sealing assembly | |
US5192095A (en) | Coupling device | |
EP0905428B1 (en) | Adjustable leak-proof coupling | |
US10022736B2 (en) | Reusable fitting for attaching a conduit to a port | |
US7032934B2 (en) | Hydraulic fitting | |
US7963571B2 (en) | Tubing configuration and sealing method for high pressure tubing on high pressure fuel systems | |
US8192421B2 (en) | Male luer lock connector | |
JP3711365B2 (en) | Component-to-component sealing method | |
US5595406A (en) | Capillary tubing connector | |
US20050023827A1 (en) | Conduit coupling assembly | |
US6575501B1 (en) | Tube sealing bushing | |
EP1856434A1 (en) | Device and method for a fluid-tight connection | |
EP0269726A1 (en) | Externally threaded quick connect coupling | |
US20080048440A1 (en) | Direct port connection for tubes | |
WO2006000534A1 (en) | Pressure sensor | |
CA2513827C (en) | Straight thread adjustable port end | |
US4291903A (en) | Connector for tubing | |
US10385995B2 (en) | Fluidic coupling seal | |
CN110036291B (en) | Fluid fitting with integrated face seal | |
US10883633B2 (en) | Zero dead volume fitting assembly | |
US6488043B2 (en) | Valve system | |
US11585470B2 (en) | Formed pipe end-section of a pipeline and pipe screw-connection | |
US20240117910A1 (en) | Hose coupling and method for use in analysis systems | |
CN219282643U (en) | Nut and joint fast-assembling formula connection structure and have this connection structure's ball valve |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1120050001814 Country of ref document: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007158942 Country of ref document: US Ref document number: 10597829 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007501945 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 0618615.9 Country of ref document: GB Ref document number: 0618615 Country of ref document: GB |
|
122 | Ep: pct application non-entry in european phase | ||
WWP | Wipo information: published in national office |
Ref document number: 10597829 Country of ref document: US |