IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0949154
(2007-12-03)
|
등록번호 |
US-7513396
(2009-07-01)
|
발명자
/ 주소 |
- Pardes, Greg
- Swiss, Stewart
|
출원인 / 주소 |
- ReSeal International Limited Partnership
|
대리인 / 주소 |
Kramer Levin Naftalis & Frankel LLP
|
인용정보 |
피인용 횟수 :
16 인용 특허 :
70 |
초록
▼
A one way valve assembly flows a sterile flowable substance from a source to an outlet orifice and prevents any backflow of contaminants through the one way valve assembly when the flowable substance ceases to flow. The valve assembly includes an elastomeric membrane which aids in preventing any bac
A one way valve assembly flows a sterile flowable substance from a source to an outlet orifice and prevents any backflow of contaminants through the one way valve assembly when the flowable substance ceases to flow. The valve assembly includes an elastomeric membrane which aids in preventing any backflow of contaminants when dispensing of the flowable substance is stopped.
대표청구항
▼
The invention claimed is 1. A continuously sealing one way valve assembly and delivery system for dispensing a flowable substance, comprising: a source for storage of a flowable substance, the source having an opening; a valve assembly coupled to the opening of the source, said valve assembly inclu
The invention claimed is 1. A continuously sealing one way valve assembly and delivery system for dispensing a flowable substance, comprising: a source for storage of a flowable substance, the source having an opening; a valve assembly coupled to the opening of the source, said valve assembly including (i) an inner core having an inlet opening for receiving the flowable substance into a passageway and at least one port opening from the passageway (ii) a hollow flexible membrane having a first end and a second end, the first end being thicker than the second end, wherein the hollow flexible membrane is fitted over an outer surface of the inner core and when the flowable substance is placed under pressure the flowable substance exits through the at least one port opening and expands said membrane outwardly from said outer surface of said inner core such that the flowable substance exits from the first end of the hollow flexible membrane; and a cover enclosing the flexible membrane and having an outlet orifice for dispensing the flowable substance from the valve assembly when pressure is applied to the flowable substance; wherein when the pressure on the flowable substance is released, the first end of the hollow flexible membrane moves back into contact with the outer surface of the inner core before the remainder of the hollow flexible membrane moves back into contact with the outer surface of the inner core. 2. The continuously sealing one way valve assembly and delivery system of claim 1, wherein the hollow flexible membrane has a continuous band at the first end of the hollow flexible membrane adjacent the outlet orifice in the cover. 3. The continuously sealing one way valve assembly and delivery system of claim 1, wherein the membrane has a first flange at the second end and the cover has a second flange pressing the first flange into fluid tight contact with a third flange of the inner core. 4. The continuously sealing one way valve assembly and delivery system of claim 1, wherein the outlet orifice can dispense a selected quantity of the flowable substance. 5. The continuously sealing one way valve assembly and delivery system of claim 1, wherein an overcap is arranged to fit over and form a seal with the valve assembly sufficient to prevent external contamination from coming in contact with the valve assembly during storage. 6. The continuously sealing one way valve assembly and delivery system of claim 1, wherein the source comprises a collapsible reservoir reducible in volume as the flowable substance is dispensed. 7. The continuously sealing one way valve assembly and delivery system of claim 1, wherein the cover has a closed outlet orifice which opens for dispensing the flowable substance from the cover when dispensing pressure is applied to the source. 8. The continuously sealing one way valve assembly and delivery system, of claim 7, wherein the outlet orifice in the cover is impervious to the flowable substance and does not retain the flowable substance inwardly of the outlet orifice. 9. A one-way valve assembly and delivery system of claim 1, wherein the source is filled with a preservative free product. 10. A one-way valve assembly and delivery system of claim 9 wherein said preservative-free product is selected from one of pharmaceutical products, food stuffs, cosmetic products, and liquid vitamins. 11. A continuously sealing one way valve assembly and delivery system for dispensing a flowable substance, comprising: a source for storage of the flowable substance, the source having an opening; a valve assembly coupled to the opening of the source, said valve assembly including (i) an inner core having an inlet opening for receiving the flowable substance into a passageway and at least one port opening from the passageway, wherein the at least one port opening is located at the approximate middle of the passageway, and the at least one port opening extends transversely from the passageway; (ii) a hollow flexible membrane having a first end and a second end, the first end being thicker than the second end, wherein the hollow flexible membrane is fitted over an outer surface of the inner core and when the flowable substance is placed under pressure the flowable substance exits through the at least one port opening and expands said membrane outwardly from said outer surface of said inner core such that the flowable substance exits from the first end of the hollow flexible membrane; and a cover enclosing the flexible membrane and having an outlet orifice for dispensing the flowable substance from the valve assembly when pressure is applied to the flowable substance: wherein said outlet orifice is coaxially aligned with said inner core passageway, wherein said outlet orifice is closed when pressure is not applied to the flowable substance; wherein when said flowable substance is dispensed, it flows radially inward from the outlet of the flexible membrane to the outlet orifice; and wherein when the pressure on the flowable substance is released, the first end of the hollow flexible membrane moves back into tightly fitting contact with the outer surface of the inner core before the remainder of the hollow flexible membrane moves back into tightly fitting contact with the outer surface of said inner core. 12. The continuously sealing one way valve assembly and delivery system of claim 11, wherein the hollow flexible membrane has a continuous band at the first end of the hollow flexible membrane adjacent the outlet orifice in the cover. 13. The continuously sealing one way valve assembly and delivery system of claim 11, wherein the membrane has a first flange at the second end and the cover has a second flange pressing the first flange into fluid tight contact with a third flange of the inner core. 14. The continuously sealing one way valve assembly and delivery system of claim 11, wherein the outlet orifice can dispense a selected quantity of the flowable substance. 15. The continuously sealing one way valve assembly and delivery system of claim 11, wherein an overcap is arranged to fit over and form a seal with the valve assembly sufficient to prevent external contamination from coming in contact with the valve assembly during storage. 16. The continuously sealing one way valve assembly and delivery system of claim 11, wherein the source comprises a collapsible reservoir reducible in volume as the flowable substance is dispensed. 17. The continuously sealing one way valve assembly and delivery system of claim 11, wherein the cover has a closed outlet orifice which opens for dispensing the flowable substance from the cover when dispensing pressure is applied to the source. 18. The continuously sealing one way valve assembly and delivery system, of claim 17, wherein the outlet orifice in the cover is impervious to the flowable substance and does not retain the flowable substance inwardly of the outlet orifice. 19. A one-way valve assembly and delivery system of claim 11, wherein the source is filled with a preservative free product. 20. A one-way valve assembly and delivery system of claim 19 wherein said preservative-free product is selected from one of pharmaceutical products, food stuffs, cosmetic products, and liquid vitamins. 21. A continuously sealing one way valve assembly and delivery system for dispensing a flowable substance, comprising: a source for storage of the flowable substance, the source having an opening; a valve assembly coupled to the opening of the source, said valve assembly including (i) an inner core having an inlet opening for receiving the flowable substance into a passageway and at least one port opening from the passageway, wherein the at least one port opening is located at the approximate middle of the passageway; (ii) a hollow flexible membrane having a first end and a second end, the first end being thicker than the second end, wherein the hollow flexible membrane is fined over an outer surface of the inner core and when the flowable substance is placed under pressure the flowable substance exits through the at least one port opening and expands said membrane outwardly from said outer surface of said inner core such that the flowable substance exits from the first end of the hollow flexible membrane; and a cover enclosing the flexible membrane and having an outlet orifice for dispensing the flowable substance from the valve assembly when pressure is applied to the flowable substance: and wherein when the pressure on the flowable substance is released, the first end of the hollow flexible membrane moves back into tightly fitting contact with the outer surface of the inner core before the remainder of the hollow flexible membrane moves back into tightly fitting contact with the outer surface of said inner core. 22. The continuously sealing one way valve assembly and delivery system of claim 21, wherein the hollow flexible membrane has a continuous band at the first end of the hollow flexible membrane adjacent the outlet orifice in the cover. 23. The continuously sealing one way valve assembly and delivery system of claim 21, wherein the membrane has a first flange at the second end and the cover has a second flange pressing the first flange into fluid tight contact with a third flange of the inner core. 24. The continuously sealing one way valve assembly and delivery system of claim 21, wherein the outlet orifice can dispense a selected quantity of the flowable substance. 25. The continuously sealing one way valve assembly and delivery system of claim 21, wherein an overcap is arranged to fit over and form a seal with the valve assembly sufficient to prevent external contamination from coming in contact with the valve assembly during storage. 26. The continuously sealing one way valve assembly and delivery system of claim 21, wherein at least two ports open from the passageway. 27. The continuously sealing one way valve assembly and delivery system of claim 21, wherein the cover has a closed outlet orifice which opens for dispensing the flowable substance from the cover when dispensing pressure is applied to the source. 28. The continuously sealing one way valve assembly and delivery system, of claim 27, wherein the outlet orifice in the cover is impervious to the flowable substance and does not retain the flowable substance inwardly of the outlet orifice. 29. A one-way valve assembly and delivery system of claim 21, wherein the source is filled with a preservative free product. 30. A one-way valve assembly and delivery system of claim 29 wherein said preservative-free product is selected from one of pharmaceutical products, food stuffs, cosmetic products, and liquid vitamins. 31. A continuously sealing one way valve assembly and delivery system for dispensing a flowable substance, comprising: a source for storage of the flowable substance, the source having an opening; a valve assembly coupled to the opening of the source, said valve assembly including (i) an inner core having an inlet opening for receiving the flowable substance into a passageway and at least one port opening from the passageway, wherein the at least one port opening is located at the approximate middle of the passageway, and the at least one port opening extends transversely from the passageway; (ii) a hollow flexible membrane having a first end and a second end, the first end being thicker than the second end, wherein the hollow flexible membrane is fitted over an outer surface of the inner core and when the flowable substance is placed under pressure the flowable substance exits through the at least one port opening and expands said membrane outwardly from said outer surface of said inner core such that the flowable substance exits from the first end of the hollow flexible membrane; and a cover enclosing the flexible membrane and having an outlet orifice for dispensing the flowable substance from the valve assembly when pressure is applied to the flowable substance: and wherein when the pressure on the flowable substance is released, the first end of the hollow flexible membrane moves back into tightly fitting contact with the outer surface of the inner core before the remainder of the hollow flexible membrane moves back into tightly fitting contact with the outer surface of said inner core. 32. A continuously sealing one way valve assembly and delivery system for dispensing a flowable substance, comprising: source for storage of the flowable substance, the source having an opening; a valve assembly coupled to the opening of the source, said valve assembly including (i) an inner core having an inlet opening for receiving the flowable substance into a passageway and at least one port opening from the passageway, wherein the at least one port opening is located at the approximate middle of the passageway, and the at least one port opening extends transversely from the passageway; (ii) a hollow flexible membrane having a first end and a second end, the first end being thicker than the second end, wherein the hollow flexible membrane is fitted over an outer surface of the inner core and when the flowable substance is placed under pressure the flowable substance exits through the at least one port opening and expands said membrane outwardly from said outer surface of said inner core such that the flowable substance exits from the first end of the hollow flexible membrane; and a cover enclosing the flexible membrane and having an outlet orifice for dispensing the flowable substance from the valve assembly when pressure is applied to the flowable substance: wherein said outlet orifice is closed when pressure is not applied to the flowable substance; and wherein when the pressure on the flowable substance is released, the first end of the hollow flexible membrane moves back into tightly fitting contact with the outer surface of the inner core before the remainder of the hollow flexible membrane moves back into tightly fitting contact with the outer surface of said inner core.
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