Apparatus and method for releasing a unit dose of content from a container
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B65D-083/00
B65D-083/68
B65D-083/54
B65D-083/52
B01F-003/04
B01F-005/06
B01F-013/00
B01F-015/00
B65D-083/16
B65D-083/14
B65D-083/20
B65D-083/40
B65D-083/48
B05B-007/08
출원번호
US-0634208
(2015-02-27)
등록번호
US-9463919
(2016-10-11)
발명자
/ 주소
Eini, Meir
Winitz, Tami
Schuz, David
출원인 / 주소
Foamix Pharmaceuticals Ltd.
대리인 / 주소
Fish & Richardson P.C.
인용정보
피인용 횟수 :
4인용 특허 :
60
초록▼
A apparatus for delivering a predetermined quantity of content from a pressurized container includes a dispensing assembly which sits on the container and connects with an upper portion of a valve stem of the valve assembly, wherein the dispensing assembly includes a) an actuator cap having a discha
A apparatus for delivering a predetermined quantity of content from a pressurized container includes a dispensing assembly which sits on the container and connects with an upper portion of a valve stem of the valve assembly, wherein the dispensing assembly includes a) an actuator cap having a discharge passage, which is open or obstructed and wherein the actuator cap acts as a metering chamber in combination with b) an adaptor which fits inside the cap and also snuggly engages the valve stem. The cap fits snuggly over the adjuster to define a metering chamber which depending on its position can close off the metered chamber or open it to the dispensing conduit\nozzle. When the cap is depressed it pushes down on the adjuster which depresses the valve. The chamber fills, but nothing is released until the upstroke.
대표청구항▼
1. An apparatus for delivering a predetermined quantity of content from a pressurized container, comprising: a dispensing assembly which connects to a valve assembly of the container, wherein the dispensing assembly comprises a) an actuator cap having a discharge passage, wherein the actuator cap ac
1. An apparatus for delivering a predetermined quantity of content from a pressurized container, comprising: a dispensing assembly which connects to a valve assembly of the container, wherein the dispensing assembly comprises a) an actuator cap having a discharge passage, wherein the actuator cap acts as a metering chamber in combination withb) an adaptor which fits inside the cap and snugly engages an inner side wall of the cap and a valve stem of the valve assembly; wherein the adaptor comprises i) a hollow conduit; andii) a sealer ring which slightly extends from an external circumference of the adaptor, wherein the diameter of the sealer ring correlates with the size of an inner tip of the discharge passage so that the larger the inner tip, the larger the diameter of the sealer ring, and wherein the diameter of the sealer ring is at least the size of the diameter of the discharge passage;whereby the dispensing assembly in response to a downward pressure on the actuator cap allows a predetermined quantity of content to be released into the metering chamber, and wherein release of the downward pressure or closing of the valve assembly causes the dispensing assembly to resume a non-actuated position and the predetermined quantity of content to be discharged. 2. The apparatus of claim 1, wherein the dispensing assembly is an actuator assembly. 3. The apparatus of claim 2, wherein the dispensing assembly further comprises an enclosure unit and a dispensing unit, wherein the dispensing unit and the actuator assembly are movable elements; and wherein the actuator cap is integrated within the dispensing unit. 4. The apparatus of claim 3, wherein the dispensing unit comprises: an outer surface that covers the actuator cap; a dispensing conduit in the dispensing unit in fluid communication with the metering chamber of the actuator cap; and a discharge nozzle at an end of the dispensing conduit distal to the metering chamber. 5. The apparatus of claim 4, further comprising a tubular conduit extending from and in fluid communication with the discharge nozzle. 6. The apparatus of claim 4, wherein the dispensing unit further comprises an engagement mechanism for securing the dispensing unit to the enclosure unit; wherein the engagement mechanism comprises a raised or depressed feature complementary to an element on the enclosure unit for engagement and securing the dispensing unit to the enclosure unit; wherein the engagement mechanism comprises at least two substantially vertically aligned slots within an external peripheral wall of the dispensing unit; wherein the slots further comprise a notch for engaging with a rail of the enclosure unit; and wherein the engagement mechanism comprises an integral relationship between the dispensing unit and the enclosure unit. 7. The apparatus of claim 1, wherein the cap comprises: a) a top wall which is pressed down during actuation; andb) a hollow defined by an inner side cylindrical wall dimensioned to closely approximate the diameter of an outer side cylindrical wall of the adaptor, said hollow functioning as the metering chamber; and wherein the discharge passage extends through a bottom peripheral side wall for releasing the predetermined quantity of content. 8. The apparatus of claim 1, wherein a) the hollow conduit is positioned at the center of a top wall of the adaptor, allowing discharge of the pressurized content there through into the metering chamber upon actuation of the dispensing assembly;b) the sealer ring functions as a gas-tight sealer to reduce undesired leakage of the pressurized content between the adaptor and the cap upon actuation of the dispensing assembly;c) the adaptor comprises a recess, which is an annular valve-stem-engaging recess defined by an inner cylindrical wall which is dimensioned to closely approximate the diameter of the valve stem, thereby permitting tight frictional engagement there between; andd) the adaptor comprises a ledge which is a thickened edge portion extending circumferentially from the bottom of the adaptor, wherein the adaptor provides resistance to downward pressure, wherein the resistance is relatively small as compared with an opposing action of an internal valve spring, thereby ensuring closure of the discharge passage by the adaptor prior to any downward movement of the valve stem. 9. The apparatus of claim 1, wherein the actuator assembly is disposed on the valve stem, wherein in the non-actuated position, the valve assembly is closed and the valve stem and the actuator assembly disposed thereon are raised, the sealer ring is below the discharge passage and the discharge passage is only partially obstructed by the adaptor, thereby in communication with the atmosphere, and wherein in the actuated position, the valve assembly is open to fluid flow, the valve stem and actuator assembly disposed thereon are depressed and the discharge passage is closed and obstructed by the adaptor and the sealer ring is positioned above the discharge passage. 10. The apparatus of claim 1, wherein the metering chamber is dynamically adjustable, comprising a topless cap and an adjusting device comprising an adjustable screw with a base comprising a washer having a sealer ring attached thereto, wherein the size of the metering chamber is varied according to the location of the base within the cap. 11. The apparatus of claim 1, wherein the discharge passage is conically shaped. 12. The apparatus of claim 1, wherein the radius of the discharge passage is about 0.025 mm to about 1 mm. 13. The apparatus of claim 1, wherein the sealer ring protrudes from the circumference of the adaptor by an amount selected from the group consisting of about 0.1 mm, about 0.12 mm, about 0.14 mm, about 0.16 mm, about 0.18 mm, about 0.2 mm, about 0.08 mm, about 0.06 mm, about 0.04 mm, about 0.02 mm, and about 0.01 mm. 14. The apparatus of claim 1, wherein the ratio between the diameter of the sealer ring and the diameter of the inner discharge passage is 1:1 or greater than 1:1. 15. A method for delivering a predetermined quantity of content from the apparatus of claim 1, comprising actuating the apparatus by applying a downward pressure on the dispensing assembly, and then releasing the pressure to allow the predetermined quantity of content to be discharged or actuating the dispensing assembly multiple times to allow multiple doses of the predetermined quantity of content to be discharged, wherein the actuating comprises: a) applying downward pressure on the actuator cap causing the cap to shift downward on the adaptor such that the discharge passage of the cap is blocked by a top side wall of the adaptor and the sealer ring;b) applying further downward pressure on the actuator cap such that a lower edge portion of the cap engages a ledge situated at the bottom of the adaptor causing the adaptor to shift downward on the valve stem, causing the valve assembly to open, thereby causing the pressurized contents to pass upward through the valve stem and through the hollow conduit in a top wall of the adaptor into the metering chamber which is obstructed by the sealer ring and the top side wall of the adaptor, the cap constituting in effect a slide valve element; andc) removing the downward pressure from the cap such that an internal return valve spring and the pressurized content return the parts of the actuator assembly to the non-actuated position where the metering chamber is in communication with the outside atmosphere because the adaptor, including the sealer ring, is positioned below the discharge passage, allowing the predetermined quantity of contents of the metering chamber to issue from the discharge passage. 16. The method of claim 15, further comprising a step of varying the size of the actuator cap while ensuring all components are sized and shaped to accommodate proper engagement and movement. 17. The method of claim 16, wherein one or more of the components are selected from the group consisting of a cap, an adaptor, a sealer ring, and a discharge passage. 18. The method of claim 16, wherein the ratio between the diameter of the discharge passage and the volume of the metering chamber is about 1:1 to about 1:500,000. 19. The apparatus of claim 5, wherein the dispensing unit further comprises an engagement mechanism for securing the dispensing unit to the enclosure unit; wherein the engagement mechanism comprises a raised or depressed feature complementary to an element on the enclosure unit for engagement and securing the dispensing unit to the enclosure unit; wherein the engagement mechanism comprises at least two substantially vertically aligned slots within an external peripheral wall of the dispensing unit; wherein the slots further comprise a notch for engaging with a rail of the enclosure unit; wherein the engagement mechanism comprises an integral relationship between the dispensing unit and the enclosure unit; wherein the cap comprises a top wall which is pressed down during actuation and a hollow defined by an inner side cylindrical wall dimensioned to closely approximate the diameter of an outer side cylindrical wall of the adaptor, said hollow functioning as the metering chamber; wherein the discharge passage extends through a bottom peripheral side wall for releasing the predetermined quantity of content; wherein the hollow conduit is positioned at the center of a top wall of the adaptor, allowing discharge of the pressurized content there through into the metering chamber upon actuation of the dispensing assembly; wherein the sealer ring functions as a gas-tight sealer to reduce undesired leakage of the pressurized content between the adaptor and the cap upon actuation of the dispensing assembly; wherein the adaptor comprises a recess, which is an annular valve-stem-engaging recess defined by an inner cylindrical wall which is dimensioned to closely approximate the diameter of the valve stem, thereby permitting tight frictional engagement there between; wherein the adaptor comprises a ledge which is a thickened edge portion extending circumferentially from the bottom of the adaptor, and wherein the adaptor provides resistance to downward pressure, and the resistance is relatively small as compared with an opposing action of an internal valve spring, thereby ensuring closure of the discharge passage by the adaptor prior to any downward movement of the valve stem. 20. The apparatus of claim 19, wherein the adaptor and the actuator cap resume a non-actuated position mainly due to liquid or propellant pressure, thereby obviating the need for a diaphragm or a spring. 21. The apparatus of claim 1, wherein delivery of the predetermined quantity of content from at least two pressurized containers comprises a multiple dispensing assembly comprising: a) at least two actuator assemblies, b) a multiple chamber dispensing unit, and c) a multiple chamber enclosure. 22. A dispensing assembly which sits on a pressurized container, the dispensing assembly comprising: a) an actuator cap that acts as a metering chamber; andb) an adaptor having a sealer ring,wherein the adaptor is positioned within the actuator cap,wherein the sealer ring slightly extends from an external circumference of the adaptor and snugly engages an inner side wall of the actuator cap;wherein said sealer ring, upon application of a downward pressure on the actuator cap, blocks a discharge passage positioned at a peripheral side wall of the actuator cap;wherein said sealer ring has a diameter compatible with the size of an inner tip of the discharge passage, thereby reducing unwanted leakage and/or continuous release of a pressurized content from the container;wherein application of a downward pressure on the actuator cap opens an internal valve in the container, thereby causing the pressurized content to pass upward into the metering chamber, wherein the sealer ring is positioned above the discharge passage, and the discharge passage is obstructed by the sealer ring and a side wall of the adaptor;wherein release of the downward pressure results in the adaptor, including the sealer ring, being positioned below the discharge passage thereby allowing a predetermined quantity of pressurized content to be discharged from the metering chamber through the discharge passage; andwherein the adaptor and the actuator cap resume a non-actuated position mainly due to the liquid or propellant pressure, thereby obviating the need for a diaphragm or a spring. 23. The dispensing assembly of claim 22, wherein the actuator cap comprises: a) a top wall which is pressed down during actuation; andb) a hollow defined by an inner side cylindrical wall dimensioned to closely approximate the diameter of an outer side cylindrical wall of the adaptor, said hollow functioning as the metering chamber; and wherein the discharge passage extends through a bottom peripheral side wall for releasing the predetermined quantity of content. 24. The dispensing assembly of claim 22, wherein a) a hollow conduit is positioned at the center of a top wall of the adaptor, allowing discharge of the pressurized content there through into the metering chamber upon actuation of the dispensing assembly;b) the sealer ring functions as a gas-tight sealer to reduce undesired leakage of the pressurized content between the adaptor and the cap upon actuation of the dispensing assembly;c) the adaptor comprises a recess, which is an annular valve-stem-engaging recess defined by an inner cylindrical wall which is dimensioned to closely approximate the diameter of a valve stem, thereby permitting tight frictional engagement there between; andd) the adaptor comprises a ledge which is a thickened edge portion extending circumferentially from the bottom of the adaptor, wherein the adaptor provides resistance to downward pressure, wherein the resistance is relatively small as compared with an opposing action of an internal valve spring, thereby ensuring closure of the discharge passage by the adaptor prior to any downward movement of the valve stem. 25. The dispensing assembly of claim 22, wherein the dispensing assembly is an actuator assembly and further comprises an enclosure unit and a dispensing unit, wherein the dispensing unit and the actuator assembly are movable elements; and wherein the actuator cap is integrated within the dispensing unit; wherein the dispensing unit comprises an outer surface that covers the actuator cap; a dispensing conduit in the dispensing unit in fluid communication with the metering chamber of the actuator cap; and a discharge nozzle at an end of the dispensing conduit distal to the metering chamber;wherein a tubular conduit extends from and in fluid communication with the discharge nozzle;wherein the dispensing unit further comprises an engagement mechanism for securing the dispensing unit to the enclosure unit; wherein the engagement mechanism comprises a raised or depressed feature complementary to an element on the enclosure unit for engagement and securing the dispensing unit to the enclosure unit; wherein the engagement mechanism comprises at least two substantially vertically aligned slots within an external peripheral wall of the dispensing unit; wherein the slots further comprise a notch for engaging with a rail of the enclosure unit; and wherein the engagement mechanism comprises an integral relationship between the dispensing unit and the enclosure unit. 26. The apparatus of claim 22, wherein delivery of the predetermined quantity of content from at least two pressurized containers comprises a multiple dispensing assembly comprising: a) at least two actuator assemblies, b) a multiple chamber dispensing unit, and c) a multiple chamber enclosure.
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