A diffuser for a multiway valve, in particular for a two-way valve, includes a tip (2) to be secured to the portion of the valve stem that projects above the cup. To withdraw a single product, the tip includes a cylindrical portion having a circular cross-section with as many transfer channels (22a,
A diffuser for a multiway valve, in particular for a two-way valve, includes a tip (2) to be secured to the portion of the valve stem that projects above the cup. To withdraw a single product, the tip includes a cylindrical portion having a circular cross-section with as many transfer channels (22a, 22b) are there are pathways in the multiway valve, for sealingly connecting each transfer channel to the outlet of the corresponding pathway of the valve, each transfer channel opening outside the cylindrical portion of the tip in a different radial plane and in a different angular sector of the cylindrical portion. The diffuser is also provided with a pivotable cap (3) with a blind hole (31) having a shape complementary to the cylindrical portion of the tip, the pivotable cap having as many outlet channels (32a, 32b) as there are pathways in the multiway valve.
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1. Diffuser for a multiway valve having a plurality of pathways provided with a projecting stem, wherein the diffuser comprises: a tip intended to be secured to a projecting portion of the stem, wherein the tip comprises a cylindrical portion having a circular cross-section, wherein the tip comprise
1. Diffuser for a multiway valve having a plurality of pathways provided with a projecting stem, wherein the diffuser comprises: a tip intended to be secured to a projecting portion of the stem, wherein the tip comprises a cylindrical portion having a circular cross-section, wherein the tip comprises a first set of transfer channels, comprising first transfer channels wherein a total number of the first transfer channels is equal to a total number of the pathways in the multiway valve, wherein each of said first transfer channels corresponds to a respective pathway among the pathways in the multiway valve, each respective first transfer channel among said first transfer channels being provided with connecting means for sealingly connecting said respective first transfer channel to an outlet of the corresponding pathway among the pathways of the multiway valve when the tip is mounted on the multiway valve,wherein each of said first transfer channels opens on an outer face of the cylindrical portion of the tip in a different radial plane and in a different angular sector of the cylindrical portion of the tip, anda pivotable cap having a central portion provided with a blind hole having a shape complementary to the cylindrical portion of the tip, wherein the pivotable cap is rotatably secured to the cylindrical portion of the tip, wherein the pivotable cap comprises a set of outlet channels comprising outlet channels, wherein a total number of the outlet channels is equal to the total number of the first transfer channels in the tip, wherein each of said outlet channels corresponds to a respective first transfer channel in the first set of transfer channels of the tip,wherein said outlet channels are arranged in a row in a same first axial plane and are arranged in same radial planes as the corresponding first transfer channels of the tip, so that by pivoting the pivotable cap, each of said outlet channels can be aligned with the corresponding one of the first transfer channels without simultaneously aligning the other outlet channels with the corresponding other first transfer channels,wherein first seals are provided around each outlet opening of the first transfer channels to ensure sealing between the outer face of the cylindrical portion of the tip and an inside of the blind hole of the pivotable cap,wherein all the first seals are combined into a same seal unit having first windows, wherein a total number of the first windows is equal to the total number of the first transfer channels, said first windows being arranged so that each of said first windows surrounds the outlet opening of a respective one of said first transfer channels. 2. Diffuser according to claim 1, wherein the tip comprises a second set of transfer channels comprising second transfer channels, wherein a total number of the second transfer channels is equal to the total number of the pathways in the multiway valve, the second transfer channels being arranged in a row in a same second axial plane, in an angular sector different from the transfer channels of the first set of transfer channels, wherein each respective first transfer channel of the first set communicates with a respective second transfer channel of the second set of transfer channels arranged in a same radial plane. 3. Diffuser according to claim 2, wherein the total number of the first transfer channels is two and the two first transfer channels are formed in the cylindrical portion of the tip, each of the first transfer channels opening outside the cylindrical portion of the tip in the respective different radial plane and in a same third axial plane but at 180° relative to one another, and wherein the total number of the outlet channels is two and the two outlet channels are arranged in a row in the same first axial plane and are arranged in the same radial planes as the corresponding first transfer channels, andwherein the second set of transfer channels comprises two second transfer channels, said second transfer channels being placed in the same second axial plane perpendicular to the third axial plane containing the first transfer channels of the first set. 4. Diffuser according to claim 2, wherein second seals are provided around each outlet opening of the second transfer channels to ensure sealing between the outer face of the cylindrical portion of the tip and the inside of the blind hole of the pivotable cap. 5. Diffuser according to claim 4, wherein the first seals and the second seals are combined into a same seal unit having (i) the first windows and (ii) second windows, wherein a total number of the second windows is equal to a total number of the second transfer channels, said second windows being arranged so that each of said second windows surrounds the outlet opening of a respective one of said second transfer channels. 6. Diffuser according to claim 5, wherein the seal unit is formed by a total number of sealing rings equal to the total number of the pathways in the multiway valve minus one, the sealing rings being arranged in a row, and two successive of said sealing rings being joined together by two straight elements so as to form a respective one of said first windows. 7. Diffuser according to claim 5, wherein the seal unit is formed by a sleeve in which a total number of openings are formed equal to a sum of the total number of the first transfer channels and a total number of the second transfer channels, each of said openings forming a respective one of said first windows and said second windows. 8. Diffuser according to claim 2, wherein the pivotable cap is provided with a prehension ring surrounding the central portion of the pivotable cap provided with the blind hole. 9. Diffuser according to claim 2, wherein the connecting means of each said respective first transfer channel is formed by a hole having dimensions complementary to dimensions of the outlet of the corresponding pathway of the multiway valve, so as to be able to be sealingly fitted onto said outlet, and by a transfer chamber from which the respective first transfer channel starts, the transfer chamber being arranged so that the corresponding pathway of the multiway valve opens into the transfer chamber when the diffuser is in position mounted on the multiway valve. 10. Diffuser according to claim 2, which is mounted on the multiway valve. 11. Diffuser according to claim 10, wherein the multiway valve is provided with a total number of the pouches is equal to the total number of the pathways. 12. Diffuser according to claim 1, wherein the seal unit is formed by sealing rings, wherein a total number of the sealing rings plus one is equal to the total number of the first transfer channels, the sealing rings being arranged in a row, and two successive of said sealing rings being joined together by two straight elements so as to form a respective one of said first windows. 13. Diffuser according to claim 1, wherein the seal unit is formed by a sleeve in which openings are formed, wherein a total number of the openings is equal to the total number of the first transfer channels, each of said openings forming a respective one of said first windows. 14. Diffuser according to claim 1, wherein the pivotable cap is provided with a prehension ring surrounding the central portion of the pivotable cap provided with the blind hole. 15. Diffuser according to claim 1, wherein the connecting means of each said respective first transfer channel is formed by a hole having dimensions complementary to dimensions of the outlet of the corresponding pathway of the multiway valve, so as to be able to be sealingly fitted onto said outlet, and by a transfer chamber from which the respective first transfer channel starts, the transfer chamber being arranged so that the corresponding pathway of the multiway valve opens into the transfer chamber when the diffuser is in position mounted on the multiway valve. 16. Diffuser according to claim 1, wherein the total number of the first transfer channels is two and the two first transfer channels are formed in the cylindrical portion of the tip, each of the first transfer channels opening outside the cylindrical portion of the tip in the respective different radial plane and in a same third axial plane but at 180° relative to one another, and wherein the total number of the outlet channels is two and the two outlet channels are arranged in a row in the same first axial plane and are arranged in the same radial planes as the corresponding first transfer channels. 17. Diffuser according to claim 1, which is mounted on the multiway valve. 18. Diffuser according to claim 17, wherein the multiway valve is provided with pouches, wherein a total number of the pouches is equal to the total number of the pathways. 19. Diffuser according to claim 18, wherein the pathways of the multiway valve have concentric outlets. 20. Diffuser according to claim 17, wherein the multiway valve is a two-way valve.
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이 특허에 인용된 특허 (10)
Riccio Pasquale R. (Salem NH), Aerosol dispenser for plurality of fluent materials.
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