Plunger for moisture tight dispenser
First Claim
Patent Images
1. A dispenser for dispensing a plurality of products, the dispenser comprising:
- a body, the body including a product housing defining an interior for housing the plurality of products, the product housing being tubular and comprising an outer wall and an inner wall located within the outer wall, the outer wall and the inner wall being joined by a connecting wall, the product housing having a dispensing portion defining a dispensing opening configured to permit the removal of at least one of the plurality of products from the interior, wherein the interior is configured for housing a stack of the plurality of products that extend within the interior towards the dispensing portion;
the body further including a plunger movably engaged with the product housing and including a product support that moves within the interior to move the plurality of products towards the dispensing opening, wherein a portion of the plunger is movably located within a space formed between the inner wall and the outer wall, wherein the plunger comprises a bottom wall located at a lowermost portion of the body and a side wall that extends upwardly from the bottom wall, the sidewall being a portion of the plunger movably located within the space formed between the inner wall and the outer wall;
the dispenser comprising a seal between the plunger and the product housing, wherein elastomeric sealing elements respectively positioned around the perimeters of an outer surface of the product housing inner wall and an inner surface of the product housing outer wall, compress against the side wall of the plunger to create the seal;
the dispenser having a moisture ingress rate of less than 1000 micrograms per day at 80% relative humidity and 22.2°
C.
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Abstract
A dispenser includes a body, the body including a product housing defining an interior for housing a plurality of products. The product housing has a dispensing portion defining a dispensing opening configured to permit the removal of at least one of the plurality of products from the interior. The body further includes a plunger movably engaged with the product housing and including a product support that moves within the interior to move the plurality of products towards the dispensing opening, the dispenser comprising a moisture tight seal between the plunger and the product housing.
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Citations
13 Claims
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1. A dispenser for dispensing a plurality of products, the dispenser comprising:
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a body, the body including a product housing defining an interior for housing the plurality of products, the product housing being tubular and comprising an outer wall and an inner wall located within the outer wall, the outer wall and the inner wall being joined by a connecting wall, the product housing having a dispensing portion defining a dispensing opening configured to permit the removal of at least one of the plurality of products from the interior, wherein the interior is configured for housing a stack of the plurality of products that extend within the interior towards the dispensing portion; the body further including a plunger movably engaged with the product housing and including a product support that moves within the interior to move the plurality of products towards the dispensing opening, wherein a portion of the plunger is movably located within a space formed between the inner wall and the outer wall, wherein the plunger comprises a bottom wall located at a lowermost portion of the body and a side wall that extends upwardly from the bottom wall, the sidewall being a portion of the plunger movably located within the space formed between the inner wall and the outer wall; the dispenser comprising a seal between the plunger and the product housing, wherein elastomeric sealing elements respectively positioned around the perimeters of an outer surface of the product housing inner wall and an inner surface of the product housing outer wall, compress against the side wall of the plunger to create the seal; the dispenser having a moisture ingress rate of less than 1000 micrograms per day at 80% relative humidity and 22.2°
C. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A dispensing assembly for dispensing a plurality of products provided in a stack, the dispensing assembly comprising:
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a body having a plunger, a product housing, a first end, a second end, and an interior, the interior configured for housing the stack, the first and second ends being positioned on opposite ends of the body, wherein the product housing is tubular and comprises an outer wall and an inner wall located within the outer wall, a sidewall of the plunger being movably located within a space formed between the inner wall and the outer wall; a dispensing portion located at the first end of the body and including a dispensing opening, the plunger configured to move the plurality of products toward the dispensing portion; a cap pivotally affixed to the body and over the dispensing portion, wherein the cap engages the housing in a sealed relationship; a seal between the plunger and the product housing, wherein elastomeric sealing elements respectively positioned around the perimeters of an outer surface of the product housing inner wall and an inner surface of the product housing outer wall, compress against the side wall of the plunger to create the seal, the dispensing assembly having a moisture ingress rate of less than 1000 micrograms per day at 80% relative humidity and 22.2°
C.; anda ratchet positioned between the plunger and the product housing, the ratchet configured to permit the displacement of the plunger toward the first end of the body to move the stack toward the dispensing opening, the ratchet also configured to prevent the displacement of the plunger toward the second end of the body; wherein the interior is configured for the stack to extend within the interior toward the dispensing portion, the interior further configured for a selected one of the plurality of products located at an end of the stack to be aligned with the opening, so as to permit removal of the selected one of the plurality of products from the body during a dispensing operation, the dispensing assembly having a total height which is reduced when the plunger moves toward the dispensing portion. - View Dependent Claims (10, 11, 12, 13)
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Specification