Single use unit dosage dispensing closure
First Claim
1. A single use unit dosage dispensing closure comprising:
- a shell adapted to be attached to a container, the shell having an outer skirt with a closure attaching mechanism on the outer skirt for attaching the shell to the container, the shell having an inner guide with an open top, wherein the inner guide is an annular tube having at least one annular seal;
an axial movable cap attached to the shell and moveable along the inner guide through the open top, the cap having a chamber therein adapted to hold a unit dosage of material to be dispensed into the container, wherein each annular seal is engaging and sealing against the cap throughout a movement of the cap;
a cover removably attached to the shell covering the open top thereby preventing actuation of the cap by an operator until the cover has been removed; and
a sealing layer coupled to the cap, wherein the chamber is sealed with the sealing layer extending across a lower open end of the cap, wherein axial movement of the cap after the cover has been removed along the inner guide will cause the sealing layer to be removed or ruptured to dispense the contents of the chamber into the container.
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Accused Products
Abstract
A single use unit dosage dispensing closure includes a shell attached to a container, an axial movable cap attached to the shell, a dust cover preventing premature actuation of the cap, and a sealing member coupled to the cap. The shell has an inner guide in communication with the container and the cap is moveable along the guide. The cap has a chamber adapted to dispense material into the container. The chamber is sealed with the sealing member extending across a lower open end thereof, wherein axial movement of the cap along the inner guide member will open the chamber and dispense the contents of the chamber into the container. The axial movable cap is formed from a material with a higher oxygen and moisture barrier property than the material forming the shell.
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Citations
20 Claims
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1. A single use unit dosage dispensing closure comprising:
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a shell adapted to be attached to a container, the shell having an outer skirt with a closure attaching mechanism on the outer skirt for attaching the shell to the container, the shell having an inner guide with an open top, wherein the inner guide is an annular tube having at least one annular seal; an axial movable cap attached to the shell and moveable along the inner guide through the open top, the cap having a chamber therein adapted to hold a unit dosage of material to be dispensed into the container, wherein each annular seal is engaging and sealing against the cap throughout a movement of the cap; a cover removably attached to the shell covering the open top thereby preventing actuation of the cap by an operator until the cover has been removed; and a sealing layer coupled to the cap, wherein the chamber is sealed with the sealing layer extending across a lower open end of the cap, wherein axial movement of the cap after the cover has been removed along the inner guide will cause the sealing layer to be removed or ruptured to dispense the contents of the chamber into the container. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A single use unit dosage dispensing closure comprising:
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a shell adapted to be attached to a container, the shell having an outer skirt with a closure attaching mechanism on the outer skirt for attaching the shell to the container, the shell having an inner guide with an open top; an axial movable cap attached to the shell and moveable along the inner guide through the open top, the cap having a chamber therein adapted to hold a unit dosage of material to be dispensed into the container, wherein the cap and the shell are made from different polymer materials, and wherein the cap is formed from one of the group polypropylene with low shrink filler and polyethylene with low shrink filler, wherein the low shrink filler is one of the group consisting of talc and mica; a cover removably attached to the shell covering the open top thereby preventing actuation of the cap by an operator until the cover has been removed; and a sealing layer coupled to the cap, wherein the chamber is sealed with the sealing layer extending across a lower open end of the cap, wherein axial movement of the cap after the cover has been removed along the inner guide will cause the sealing layer to be removed or ruptured to dispense the unit dosage of the material of the chamber into the container.
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11. A single use unit dosage dispensing closure comprising:
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a shell adapted to be attached to a container, the shell having an outer skirt with a closure attaching mechanism on the outer skirt for attaching the shell to the container, the shell having an inner guide with an open top, wherein the inner guide is an annular tube having at least one annular seal engaging and sealing against the cap; an axial movable cap attached to the shell and moveable along the inner guide through the open top, the cap having a chamber therein adapted to hold a unit dosage of material to be dispensed into the container, and wherein the inner guide includes an upper stop limiting the upward movement of the cap; a cover removably attached to the shell covering the open top thereby preventing actuation of the cap by an operator until the cover has been removed; and a sealing layer coupled to the cap, wherein the chamber is sealed with the sealing layer extending across a lower open end of the cap, wherein axial movement of the cap after the cover has been removed along the inner guide will cause the sealing layer to be removed or ruptured to dispense the unit dosage of the material of the chamber into the container. - View Dependent Claims (12)
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13. A single use unit dosage dispensing closure comprising:
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a shell adapted to be attached to a container, the shell having an inner guide with open ends in communication with the container, wherein the inner guide is an annular tube having at least one annular seal; a dust cover removably attached to the shell covering one open end thereby preventing actuation of the cap by an operator until the cover has been removed; an axial movable cap attached to the shell and moveable along the inner guide, the cap engaging the inner guide and having a chamber therein adapted to hold a unit dosage of material to be dispensed into the container, wherein the axial movable cap is formed from a material with a higher oxygen and water barrier property than the material forming the shell, and wherein each annular seal is engaging and sealing against the cap throughout a movement of the cap; and a sealing member coupled to the cap, wherein the chamber is sealed with the sealing member extending across a lower open end of the chamber, wherein axial movement of the cap along the inner guide member will dispense the unit dosage of the material of the chamber into the container. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A single use unit dosage dispensing closure comprising:
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a shell adapted to be attached to a container, the shell having an inner guide with open ends in communication with the container; a dust cover removably attached to the shell covering one open end thereby preventing actuation of the cap by an operator until the cover has been removed; an axial movable cap attached to the shell and moveable along the inner guide, the cap engaging the inner guide and having a chamber therein adapted to hold a unit dosage of material to be dispensed into the container, wherein the axial movable cap is formed from a material with a higher oxygen and water barrier property than a material forming the shell, and wherein the inner guide is an annular tube having at least one annular seal engaging and sealing against the cap with an upper stop limiting the upward movement of the cap and a finger access in an upper side of the inner guide; and a sealing member coupled to the cap, wherein the chamber is sealed with the sealing member extending across a lower open end of the chamber, wherein axial movement of the cap along the inner guide member will dispense the unit dosage of the material of the chamber into the container.
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Specification