초록 ▼

A valve assembly for an aerosol can comprises a valve conduit having an inlet, an outlet, a valve seat in the flow path between the inlet and the outlet, and a resilient mounting of a valve member that permits relative movement of the valve member relative to the valve conduit. The valve member furt

A valve assembly for an aerosol can comprises a valve conduit having an inlet, an outlet, a valve seat in the flow path between the inlet and the outlet, and a resilient mounting of a valve member that permits relative movement of the valve member relative to the valve conduit. The valve member further comprises a valve element that is movable to sealingly engaging the valve seat, and a stem projecting from the valve member through the outlet of the valve conduit. During the movement of the valve member relative to the valve conduit, the movable tapered sealing surface associated with the valve member is configured to engage and concentrically align with a tapered valve seat on the valve conduit to establish an effective seal against the valve seat.

대표청구항 ▼

What is claimed is: 1. A valve assembly for a container comprising: a valve conduit having an inlet including a retaining means therein, an outlet and a tapered valve seat in the flow path between the inlet and the outlet; a valve member received within the valve conduit, the valve member having a

What is claimed is: 1. A valve assembly for a container comprising: a valve conduit having an inlet including a retaining means therein, an outlet and a tapered valve seat in the flow path between the inlet and the outlet; a valve member received within the valve conduit, the valve member having a resilient spring portion that is retained in a compressed manner by the valve conduit's retaining means for providing a resilient mounting of a valve member within the valve conduit, which permits relative movement of a tapered valve element of the valve member relative to the valve conduit, the tapered valve element being movable to concentrically align with and sealingly engage the tapered valve seat, wherein the valve member includes a stem projecting through and spaced apart from the outlet of the valve conduit; and wherein the valve conduit is adapted to be retained within an opening in the container. 2. The valve assembly of claim 1, wherein the spring portion of the valve member comprises one or more integrally formed springs extending radially from the valve member, the one or more springs being retained with the valve conduit in such a manner that the valve element is biased against the valve seat. 3. The valve assembly of claim 2, wherein the retaining member of the valve conduit comprises a retaining means for retaining the one or more integrally formed springs of the valve member in a compressed manner within the valve conduit such that the valve element is biased against the valve seat by the one or more springs. 4. The valve assembly of claim 3, wherein displacing the stem of the valve member compresses the one or more springs to move the valve element away from the valve seat to allow flow through the valve outlet. 5. The valve assembly of claim 1, wherein the valve element comprises a tapered surface that sealingly engages the valve seat. 6. The valve assembly of claim 5, wherein the valve seat comprises an opening having a tapered surface. 7. The valve assembly of claim 6, wherein during the movement of the valve element, the valve element's tapered surface engages and concentrically aligns with the tapered surface on the valve seat to establish an effective seal against the valve seat. 8. The valve assembly of claim 7, wherein the valve conduit comprises a retaining member configured to secure the valve conduit within an opening in a container. 9. The valve assembly of claim 8, wherein the valve conduit comprises an annular seal member that provides a seal against the opening in the container when the valve conduit is secured within the opening of the container by the retaining member. 10. The valve assembly of claim 9, wherein the annular seal member is compressed within the opening in the container to provide a seal against the opening. 11. A valve assembly for an aerosol can comprising: a valve conduit having an inlet including a retaining means therein, an outlet and a tapered valve seat in the flow path between the inlet and the outlet; a valve member received within the valve conduit, the valve member having a resilient spring portion that is retained in a compressed manner by the valve conduit's retaining means for providing a resilient mounting of a valve member within the valve conduit, which permits relative movement of a tapered sealing surface on the valve member relative to the valve conduit, the tapered sealing surface being biased towards and movable to concentrically align with and to sealingly engage the tapered valve seat, and the valve member having a stem projecting through and spaced apart from the outlet of the valve conduit that may be displaced to move the tapered sealing surface away from the valve seat to allow flow through the valve outlet. 12. The valve assembly of claim 11, wherein the valve conduit is adapted to be retained within an opening in a cup that is secured to the aerosol can. 13. The valve assembly of claim 11, wherein the spring portion of the valve member comprises one or more integrally formed springs extending radially from the valve member, the one or more springs being retained with the valve conduit in such a manner that the springs resiliently bias the tapered sealing surface against the tapered valve seat. 14. The valve assembly of claim 13, wherein the retaining means of the valve conduit comprises a retaining means for retaining the one or more springs of the valve member within the valve conduit in a manner such that the tapered sealing surface is biased against the valve seat by the one or more springs. 15. The valve assembly of claim 14, wherein the retaining means comprises a tapered annular ring in the inlet of the valve conduit. 16. The valve assembly of claim 11, wherein displacing the stem of the valve member compresses the one or more springs to move the tapered sealing surface away from the valve seat to allow flow through the valve outlet. 17. The valve assembly of claim 11, wherein during the movement of the valve member's tapered sealing surface, the tapered sealing surface engages and concentrically aligns with the tapered valve seat surface to establish an effective seal against the valve seat. 18. The valve assembly of claim 17, wherein the tapered valve surface comprises a continuous, smooth surface. 19. The valve assembly of claim 18, wherein the smooth surface is free of any mold parting lines. 20. The valve assembly of claim 18, wherein the tapered valve seat comprises a continuous smooth surface free of any mold parting lines. 21. A valve assembly for an aerosol can comprising: a valve conduit having an inlet including a retaining means therein, an outlet and a tapered valve seat in the flow path between the inlet and the outlet; a valve member mounted within the valve conduit, the valve member having a resilient spring portion that is retained in a compressed manner by the valve conduit's retaining means for providing a resilient mounting of the valve member in a manner that permits relative movement of a tapered sealing surface on the valve member relative to the valve conduit, the valve member having a stem projecting through and spaced apart from the outlet of the valve conduit and a resilient spring portion comprising one or more integrally formed springs extending radially from the valve member that are retained within the valve conduit in a manner such that the tapered sealing surface of the valve member is biased towards and movable to concentrically align with and to sealingly engage the tapered valve seat, wherein the valve stem may be displaced to move the tapered sealing surface away from the valve seat to allow flow through the valve outlet; and wherein during the movement of the valve member the tapered sealing surface is configured to engage and concentrically align with the tapered valve seat to establish an effective seal against the valve seat. 22. The valve assembly of claim 21, wherein the valve conduit is adapted to be retained within an opening in a cup that is secured to the aerosol can. 23. The valve assembly of claim 22, wherein the valve conduit comprises a retaining member configured to secure the valve conduit within an opening in a container. 24. The valve assembly of claim 21, wherein the valve conduit comprises a retaining means for retaining the one or more springs of the valve member within the valve conduit. 25. The valve assembly of claim 24, wherein the retaining means comprises a tapered annular ring in the inlet of the valve conduit. 26. The valve assembly of claim 21, wherein the tapered sealing surface comprises a continuous, smooth surface. 27. The valve assembly of claim 26, wherein the smooth surface is free of any mold parting lines. 28. The valve assembly of claim 27, wherein the tapered valve seat comprises a continuous smooth surface free of any mold parting lines. 29. An aerosol can in connection with a valve assembly comprising: an aerosol can; a cup secured to the aerosol can having an opening therein; a valve conduit having an inlet including a retaining means therein, an outlet and a tapered valve seat in the flow path between the inlet and the outlet, the valve conduit being adapted to be secured within an opening in the cup secured to the aerosol can; a valve member mounted within the valve conduit, the valve member having a resilient spring portion that is retained in a compressed manner by the valve conduit's retaining means for providing a resilient mounting of the valve member in a manner that permits relative movement of a tapered sealing surface on the valve member relative to the valve conduit, the valve member having a stem projecting through and spaced apart from the outlet of the valve conduit and a resilient spring portion comprising one or more integrally formed springs extending radially from the valve member that are retained within the valve conduit in a manner such that the tapered sealing surface is biased towards and movable to concentrically align with and to sealingly engage the tapered valve seat, wherein the valve stem may be displaced against the spring bias to move the tapered valve surface away from its sealed position to allow flow through the valve outlet; and wherein during the movement of the valve member the tapered sealing surface is configured to engage and concentrically align with the tapered valve seat to form an effective seal. 30. The aerosol can of claim 29, wherein the valve conduit comprises a retaining member configured to secure the valve conduit in sealing engagement within the opening in the cup. 31. The aerosol can of claim 30, wherein the valve conduit comprises a retaining means for retaining the one or more springs of the valve member within the valve conduit. 32. The aerosol can of claim 31, wherein the retaining means comprises a tapered annular ring in the inlet of the valve conduit. 33. The valve assembly of claim 29, wherein the tapered sealing surface comprises a continuous, smooth surface that is free of any mold parting lines. 34. The valve assembly of claim 33, wherein the tapered valve seat comprises a continuous, smooth surface that is free of any mold parting lines.