Time or time-temperature indicating articles
First Claim
1. An article comprising:
- a housing enclosing;
(a) a first fluid reservoir at least partially filled with a first fluid;
(b) a substrate comprising a plurality of channels;
(c) a second fluid reservoir in fluid communication with at least one channel of the substrate; and
(d) a barrier located between the first fluid reservoir and the second fluid reservoir;
wherein the article can be manipulated at a desired point in time by opening the barrier to allow at least a portion of the fluid to flow from the first reservoir to the second reservoir and to contact at least one channel of the substrate;
wherein the article is designed to provide an indication of the progress of the fluid as it moves through the channels of the substrate; and
wherein the second reservoir has a volume that is greater than a volume of the first reservoir, and is a sufficient to prevent the fluid from the first reservoir from being forced directly into the substrate upon opening the barrier.
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Accused Products
Abstract
Time or time-temperature indicating articles are described comprising a housing enclosing: (a) a first fluid reservoir at least partially filled with a first fluid; (b) a substrate comprising a plurality of channels; (c) a second fluid reservoir in fluid communication with at least one channel of the substrate; and (d) a barrier located between the first fluid reservoir and the second fluid reservoir. The article can be manipulated at a desired point in time by opening the barrier to allow at least a portion of the fluid to flow from the first reservoir to the second reservoir and to contact at least one channel of the substrate. The article is designed to provide an indication of the progress of the fluid as it moves through the channels of the substrate.
142 Citations
21 Claims
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1. An article comprising:
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a housing enclosing;
(a) a first fluid reservoir at least partially filled with a first fluid;
(b) a substrate comprising a plurality of channels;
(c) a second fluid reservoir in fluid communication with at least one channel of the substrate; and
(d) a barrier located between the first fluid reservoir and the second fluid reservoir;
wherein the article can be manipulated at a desired point in time by opening the barrier to allow at least a portion of the fluid to flow from the first reservoir to the second reservoir and to contact at least one channel of the substrate;
wherein the article is designed to provide an indication of the progress of the fluid as it moves through the channels of the substrate; and
wherein the second reservoir has a volume that is greater than a volume of the first reservoir, and is a sufficient to prevent the fluid from the first reservoir from being forced directly into the substrate upon opening the barrier. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An article comprising:
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a housing enclosing;
(a) a first fluid reservoir at least partially filled with a first fluid;
(b) a substrate comprising a plurality of channels;
(c) a compression resistant reservoir comprising an elongated tube having an inlet opening, an internal passageway for the flow of fluid, a first outlet that is in fluid communication at least one channel of the substrate, and a second outlet that is in communication with a vent hole; and
(d) a barrier located between the first fluid reservoir and the inlet opening of the compression resistant reservoir;
wherein the article can be manipulated at a desired point in time by opening the barrier to allow at least a portion of the fluid to flow from the first reservoir to the compression resistant fluid reservoir and to contact at least one channel of the substrate; and
wherein the article is designed to provide an indication of the progress of the fluid as it moves through the channels of the substrate.
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Specification