Title of Invention

A VALVE ASSEMBLY FOR CONTAINER OPENING

Abstract

ThiS invention relate, to a valve assembly for container opening, comprising a base member (2) that is mounted on an opening of a container, nose, or similar type which is to be closed, said base member comprises a through passage (3) thet is provided with axial ends, a first valve seat (9) arranged near one axial end of said through passage, a valve element (4) comprising axial ends and a second valve seat (8) disposed inside the base member near one axial end thereof, said second valve seat (8) can be engaged in a sealing manner with the first valve seat so as to close the through passage, the valve element being movable in a stop-limited manner relative to the base member between a closed position and a released position, a tappet element (13) comprising first coupling means (12) can be introduced at the other axial end of the through passage so as to detachably engage with a second coupling means (11) thet are disposed on the valve element such thet the valve element is moved at least from the closed position to the released position, preferably also from the released position to the closed position, the base member and the valve element constituting separate shaped parts. A shaft section (5) of the valve element (4) extends through a throughway which is circumscribed by stop arms (16) protruding from the inner peripheral wall of the through passage (3) towards the inside, the width of said throughway is greater then the dimension of the shaft section (5) but smaller then the radial dimension of a collar surface (18) of the valve element such that said collar surface (18) can be engaged in a movement-restraining manner with the stop arms when the valve element is moved into the released position, and in that the stop arms (16) can yield in a resilient manner from the movement-constraining resting position towards the outside when said stop arms (16) are subjected to a force in a direction thet is counter to the direction of movement of the valve element (4) into the released position.

Full Text

FIELD OF THE INVENTION The invention relates to a valve assembly comprising a base body for fitting at an opening which has to be sealed of container, hose or the equivalent. BACKBROUND OF THE INVENTION It relates to a valve assembly which make, possible the entry and/or the withdrawal of a liquid, gaseous or powdery of fluid in or rather out of a container or pouch by meansof a ram or a needle which may be operated fro, outside which can be combined with a hose or equivalent through which the fluid can be supplied or rather drained off. These processes are frequently automatically controlled and take place on narrowest space. As per a generic term a valve assembly (WO 90/ 482O3) with a valve unit is known which is planned outside of a fluid through passage of the valve assembly. This requires expensive design measures which complicate the production and fitting of the valve assembly and are counter productive for minimising of a dimensioning of the valve assembly. It is further known (WO 48/23972) to plan instead of a separtely produced component a single piece assembly in doing so the valve unit is planned further out side of a fluid through passage in fact the preduction is made easier through the single piece design, however the valve assembly does not differ otherwise from the known previously mentioned two pieces assembly and over and above that undesired forming burrs can generate which can impair the sealing function of the valve assembly. For the state of the art, it is further referred to US - A-3 768501 and 3871 422. Through the invention in contrast to this a valve assembly of the type mentioned at he entry with reliable sealing function are procured, which is robust and lets it minimise design wise easily . Further the components of the valve assembly will be produced economically through injection casting and can be built - up with few steps, preferably automatically to a unit finished for input. SUMMARY OF THE INVENTION This assignment is solved through the features of the invention. The invention allows the preparation of a valve assembly in which the valve unit can be assembled within the contour line of the base body as for example of a pipe piece or weld-in piece and it is not required to leave the location either in sealing or in release position. This makes possible a design minimising of the valve assembly under the dimensioning of the bora or opening with which the valve assembly will act together so that it can be used as a usual plug. At tha same time tha valva assembly is less susceptible to failure against aictarnal influences than the known assemblies mentioned at the entry since no projecting parts are present at which at emptying of a container it's wall parts can put up. The main component of the valve assembly, namely, their base body and valve unit, represent plastic shaping parts to be produced economically. Their fitting can take place in one step, preferably automatically. BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWING Tha invention is axplainad closer following with the help of an axecution design and the accompanying drawings: Figure 1 in longitudinal section view a valve assembly as per as ecxecution design of tha invention, fittad in a pipe to be sealed. Figure 2 valva assembly as per figure 1 in a view rotated around 45°. Figura 3 a view of the valve assembly along the line III-III in Figure 1 in taken away valve unit. DETAIL DESCRIPTION OF THE INVENTION Though the invention is described followingly in coobionation with the sealing of a pipe, in which the valve assembly can be input as per the type of a plug and as for example can be held sealed through press fit, the invention is not limited on this use. The valve assembly can be developed much more also in other way, in particular as weld-in-part for input in a slit shaped opening of a container out of foil type material, in doing so it can be combined with the foil material of the container through welding or in another suitable way as sealed. The basic design of a weld-in part is known to specialist so that closer explanations with regard to this are superfluous. The valve assembly coverst as represented, a pipe shaped base body 1, which is entered in the pipe 2 as per type of a plug. The base body 1 is through put from a through passage 3 which extends from an axial end of the base body 1 to it's other axial end. In the through passage 3 a valve unit 4 is assambled which covers a central shank area 5 with a decreased radial size D, which extends between end sided areas 6, 7 thickened in the circumferential dimensions. One thickened area 6 cab have in cross section a bell - or cup shaped configuration and shows an extarnal circumferential araa 8, which produce, a first valve saat. A further internal circumferential araa 9 is planned at a mouth - or and area 10 of tha basa body 1 near an axial end of tha through passage 3 and producas a second valva seat. Between tha valva saats 8, 9 there exist, a sealing ralation when the valva unit 4 is locatad in it's closing position shown in tha drawing, in which the through passage 3 is sealad. Tha oppositely lying other thickened area 7 of the valve unit 4 contains a profile recess 11 opening away from the shank araa 5, in which a profiled top part 12 of a pipe shaped 1 ram item 13 can grip in. Tha ram item 13 can be entered in the through passage 3 by it's other axial end and can be combined with a pipe or hose (not shown) through which a fluid can be supplied. At the external circumference of the ram item 13 a seeling 14 in design as for example of an O-ring can be assembled which can tread in a sealing relation with a neighbouring area of tha internal circumference of the base body 1. In the circumferential wall of the ram item 13 near the top piece 12 piar cings 15 are planned, through which the fluid from the inside, of the ram item 13 can gat into the tnrough passage 3. The ram item 13 if reoquired can be brought out from the coupling engagement with the valve unit 4. From the internal circumference of the base body 1 near the second valva seat 9 a multiple number (presently four) stop arms In the shown rest - or operating position the stop aroa 16 and in a close distanca from external circumference 2O of the shank area 9 of the valva unit 4, as it is indicated in 19, so thet batwaan the arms 16 and the valva unit 4 no touching 16 assambled in same circumferential distance from each other projects obliquely towards inside and in direction on the thickened area 7 of the valva unit 4. Tna stop arms 16 hava axial stop area, 17 with which a ring shaped shoulder area 18 can come at the thickanad area 7 of tna valva unit 4 in the installation in ordtr to rastrict an axial movement of the valva unit 4 in direction on its' a raleasa position in which the first valva seat 8 remains with second valva saat 9 out of saaling ralation. The axial shifting of the valva unit 4 can take place through it that the ram item 13 existing in coupling ralation with the valva unit 4 is pushed forward in the through passage 3. engagement takes place . The arms 16 are dimensioned so that they under a force, acting axially on it can taw turned off or rather can give in from the rest - or operatine position towards outside. In the rest - or operating position the stop area 16 define a free internal passage 24 with a passage width a, compare Figure 3. As further Figure 2 shows at the internal circumference of the base body 1 a Multiple number of guiding ledges, 21 (prevently four ledges) can be formed in same circumferential distance from each extend, which stretch in axial direction and have internal guiding areas 22, longitudinally to which the thickened area 7 of the valve unit 4 can be moved. The radial sice D2 of the external circumference 23 of the thickened area 7 is such that a minimum free gap to the guiding area 22 of guiding ledges 21 is maintained and the thickened area 7 experiences then only a support to the guiding area 22 when the valve unit 4 is brought out from it's specified axial and radial alignment through external interference forces. As it is represented in the diagram, the valve unit 4 is admitted in it's release - as also in closing position within the circumferential and axial limitations of the through passage 3 or rather of the base body 1. This ie Made possible through the elastic stop arm 16 in which these can be positioned bent in input of the valve unit 4 in the through passage 3 on the part of it's mouth area 10, so thet the passage width d of the passage 24 is enlarged temporarily such thet the thickened area 7 of the valva unit 4 can pass the stop arms l6. Thereafter the stop arms 14 spring back in their shown starting position in ordar to sarva as stops which rastrict the movement of the valva unit 4 in the ralaasa position and at the same time prevent the valva unit at a drop out from the through passage. The closing position, which is defined through the engagement between the first and second valve seat 8,9 can tread on valve unit 4 in other suitable way stop re,trictively in installation with a shoulder 26 at the base body 1 which is planned near the second valve seat 9. Though the invention makes possible the full integration of the valve unit within the through passage of the base body it is not restricted on it. The first and sacond valve seat, could be planned also outside of the axial ends of the through passage in which at the valve unit a top flange with a seeled face can be formed which can tread with a front sided sealed face of the base body in sealing relation. The sealing relation could alone be maintained through the effect of a positive pressure in the container. Instead of four or more stop arms and guiding ledges, also only one pair of such type step arms and guiding ledges lying opposite to each other diametrically can be planned. The base body and the valve unit are, separate plastic shaped parts from same or different plastic materials preferably produced as per the injection casting process. WE CLAIM: 1. A valve assembly for container opening, comprising a base member (2) thet is mounted on an opening of a container, hose, or similar type which is to be closed, said base member comprises a through passage (3) thet is provided with axial ends, a first valve seat (9) arranged near one axial end of said through passage, a valve element (4) comprising axial ends and a second valve seat (8) disposed inside the base member near one axial end thereof, said second valve seat (8) can be engaged in a sealing manner with the first valve seat so as to close the through passage, the valve element being movable in a stop- limited manner relative to the base member between a closed position and a released position, a tappet element (13) comprising first coupling means (12) can be introduced at the other axial end of the through passage so as to detachably engage with a second coupling means (11) thet are disposed on the valve element such thet the valve element is moved at least from the closed position to the released position, preferably also from the released position to to the closed position, the base member and the valve element constituting separate shaped parts, characterized in thet a shaft section (8) of the valve element (4) extends through a throughway which is circumscribed by stop arms (16) protruding from the inner peripheral wall of the through passage (3) towards the inside, the width of maid throughway is greater then the dimension of the shaft section (S) but smaller then the radial dimension of a collar surface (18) of the valve element such thet said collar surface (18) can be engaged in a movement-restraining with the stop arms when the valve element is moved into the released position, and in thet the stop arms (16) can yield in a resilient manner from the movement-cibstraining resting position towards the outside when said stop arms (16) are subjected to a force in a direction thet is counter to the direction of movement of the valve element (4) into the released position. 2. The valve assembly as claimed in claim 1, wherein the area between the shaft section (5) and a first thickened end (7) of the valve element (4) is configured near the other axial end of the through passage (3) so as to accommodate the second coupling means (11). 3. The valve assembly as claimed in claim 1 or 2« wherein the first valve seat (9) is disposed at a second thickened end area (6) near one axial end of the valve element (4) with a radial size which is greater then thet of a passage (24) and of the first thickened end area (7) of the valve element (4) near its other axial end. 4. The valve assembly as claimed in claim 1, 2 or 3, comprising at least a pair of stop arms (16) diametrically lying opposite to each other. 5. The valve assembly as claimed in one of the preceding claims, wherein the valve element (4) is assembled inside of the axial and circumferential limitations of the through passage (3). ThiS invention relate, to a valve assembly for container opening, comprising a base member (2) that is mounted on an opening of a container, nose, or similar type which is to be closed, said base member comprises a through passage (3) thet is provided with axial ends, a first valve seat (9) arranged near one axial end of said through passage, a valve element (4) comprising axial ends and a second valve seat (8) disposed inside the base member near one axial end thereof, said second valve seat (8) can be engaged in a sealing manner with the first valve seat so as to close the through passage, the valve element being movable in a stop-limited manner relative to the base member between a closed position and a released position, a tappet element (13) comprising first coupling means (12) can be introduced at the other axial end of the through passage so as to detachably engage with a second coupling means (11) thet are disposed on the valve element such thet the valve element is moved at least from the closed position to the released position, preferably also from the released position to the closed position, the base member and the valve element constituting separate shaped parts. A shaft section (5) of the valve element (4) extends through a throughway which is circumscribed by stop arms (16) protruding from the inner peripheral wall of the through passage (3) towards the inside, the width of said throughway is greater then the dimension of the shaft section (5) but smaller then the radial dimension of a collar surface (18) of the valve element such that said collar surface (18) can be engaged in a movement-restraining manner with the stop arms when the valve element is moved into the released position, and in that the stop arms (16) can yield in a resilient manner from the movement-constraining resting position towards the outside when said stop arms (16) are subjected to a force in a direction thet is counter to the direction of movement of the valve element (4) into the released position.

Documents:

1437-KOLNP-2004-FORM-27.pdf

1437-kolnp-2004-granted-abstract.pdf

1437-kolnp-2004-granted-claims.pdf

1437-kolnp-2004-granted-correspondence.pdf

1437-kolnp-2004-granted-description (complete).pdf

1437-kolnp-2004-granted-drawings.pdf

1437-kolnp-2004-granted-examination report.pdf

1437-kolnp-2004-granted-form 1.pdf

1437-kolnp-2004-granted-form 18.pdf

1437-kolnp-2004-granted-form 2.pdf

1437-kolnp-2004-granted-form 26.pdf

1437-kolnp-2004-granted-form 3.pdf

1437-kolnp-2004-granted-form 5.pdf

1437-kolnp-2004-granted-priority document.pdf

1437-kolnp-2004-granted-reply to examination report.pdf

1437-kolnp-2004-granted-specification.pdf