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US 2003/0113228 A1Published application
Contamination detection system
OwnerRobert M. Goldsmith, Catherine H. Goldsmith +1inventors
InventorsRobert M. Goldsmith, Catherine H. Goldsmith, James G. Woodaman
Life of this patent
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Abstract
A dual bar code for detecting contamination. When no contamination is present, a first bar code identifies the product. When contamination is present a second bar code identifies the presence of contaminants.
Claims46
A contamination detection system comprising:
- a first bar code symbol coded to identify a container when contamination is not present;
- a second bar code symbol coded to identify a contaminated container when contamination is present;
- and
- means for altering said bar codes such that, when contamination is not present the first bar code identifies the container and when contamination is present the second bar code identifies the presence of contamination.
1 more element
A dual bar code system for detecting contamination comprising:
- a first bar code symbol coded to identify a container having an indicator area for changing the appearance of said first bar code;
- a second bar code symbol coded to identify contamination of the container having an indicator area for changing the appearances of said second bar code;
- wherein when contamination is present, the appearance of the first bar code changes precluding product identification, and the appearance of the second bar code changes to identify contamination.
A contamination detection system comprising:
- (a) a container;
- (b) a bar code printed upon a transparent substrate;
- (c) a contamination indicator attached to said container and aligned with said bar code, whereby said indicator changes appearance when the container becomes contaminated and alters the appearance of said bar code.
A contamination detector comprising:
- a container;
- an indicator, wherein the indicator comprises
- a first anti-toxin attached to a transparent substrate;
- and
- a solution in contact with the first anti-toxin attached to the transparent substrate, wherein the solution comprises a labeled second anti-toxin and wherein the labeled second anti-toxin becomes bound to the transparent substrate rendering the substrate opaque in the presence of a toxin.
2 more elements
A contamination detector comprising:
- a container;
- an indicator strip associated with the container, wherein the indicator strip includes markings which are removed in the presence of a toxin;
- and
- a bar code aligned with the indicator strip, wherein the combination of the presence of markings on the indicator strip and the bar code form an intact visible indicator.
1 more element
A method of detecting contamination of a container comprising:
- (a) attaching a bar code printed upon a transparent substrate to a container;
- (b) attaching a contamination detector to said package, wherein the detector comprises an indicator which changes appearance when the container becomes contaminated, whereby said indicator is aligned with said bar code and alters the appearance of the bar code when the indicator changes appearance;
- and
- (c) detecting whether the bar code has been altered by a change in the appearance of the indicator.
1 more element
A container comprising:
- a first product information component associated with the container so it is visible from the exterior of the container, the first component comprising a first substrate and one or more first visual elements printed on the first substrate with a material capable of detecting a contaminant;
- and
- a second product information component associated with the container, the second component comprising a second substrate aligned with the first substrate without hiding the first visual elements and a plurality of second visual elements printed on the second substrate with a noncontaminant detecting material.
Dependencies are inferred from the claim text.