SYSTEM AND METHOD FOR QUALITY MANAGEMENT UTILIZINIG BARCODE INDICATORS

• US 20090302102A1
• Filed: 05/20/2009
• Published: 12/10/2009
• Est. Priority Date: 06/10/2008
• Status: Active Grant

• Current Assignee: Varcode, Ltd.
• Original Assignee: Varcode, Ltd.
• Inventors: Tafesh, Ahmed M., Nemet, Yaron, Brand, Ephraim
• Granted Patent: US 8,091,776 B2
• Time in Patent Office: Days
• US Class Current: 235/376
• CPC Class Codes: G01D 7/00 Indicating measured values
• CPC Class Codes: G01D 7/005 Indication of measured value by colour change
• CPC Class Codes: G01K 11/14 of inorganic materials
• CPC Class Codes: G01K 3/10 in respect of time, e.g. reacting only to a quick change of temperature
• CPC Class Codes: G06K 19/06028 using bar codes
• CPC Class Codes: G06K 19/06037 multi-dimensional coding
• CPC Class Codes: G06K 19/06046 Constructional details
• CPC Class Codes: G06K 19/0614 the marking being selective to wavelength, e.g. color barcode or barcodes only visible under UV or IR methods or arrangements for sensing record carriers using a selected wavelength, see G06K7/12
• CPC Class Codes: G06K 19/0615 the marking being of the rewritable type, e.g. thermo-chromic barcodes
• CPC Class Codes: G06K 7/1413 1D bar codes
• CPC Class Codes: G06K 7/1417 2D bar codes
• CPC Class Codes: G06Q 10/087 Inventory or stock management, e.g. order filling, procurement or balancing against orders
• CPC Class Codes: G06Q 30/06 Buying, selling or leasing transactions

Abstract

A quality management system for products including a multiplicity of barcoded quality indicators, a barcode indicator reader and a product type responsive indication interpreter, each of the barcoded quality indicators including a first barcode including at least one first colorable area, the first barcode being machine-readable before exceedance of the at least one time and temperature threshold, at least a second barcode including at least one second colorable area, the second barcode not being machine-readable before exceedance of the at least one time and temperature threshold, a coloring agent located at a first location on the indicator and a coloring agent pathway operative to allow the coloring agent to move, from the first location to the first and second colorable areas simultaneously thereby causing the first barcode to become unreadable and at the same time causing the second barcode to become machine-readable.

Claims

1. A quality management system for products comprising:

a multiplicity of barcoded quality indicators each operative to provide a machine-readable indication of exceedance of at least one time and temperature threshold, each of said indicators comprising;

a first barcode including at least one first colorable area, said first barcode being machine-readable before exceedance of said at least one time and temperature threshold;

at least a second barcode including at least one second colorable area, said second barcode not being machine-readable before exceedance of said at least one time and temperature threshold;

a coloring agent located at a first location on said indicator; and

a coloring agent pathway operative to allow said coloring agent to move, at a rate which is at least partially a function of time, from said first location to said first and second colorable areas simultaneously for simultaneous coloring thereof upon exceedance of said time and temperature threshold, thereby causing said first barcode to become unreadable and at the same time causing said second barcode to become machine-readable;

a barcode indicator reader operative to read said barcoded quality indicators and to provide output indications; and

a product type responsive indication interpreter operative to receive said output indications and to provide human sensible, product quality status outputs,

each of said barcoded quality indicators being operative to provide a single machine-readable barcode readable by said barcode indicator reader, generally at all times including times prior to, during and immediately following exceedance of said at least one time and temperature threshold.

2. A quality management system according to claim 1 and wherein said barcoded quality indicators comprise linear barcodes.

3. A quality management system according to claim 1 and wherein said first barcode and said at least second barcode are each operative to indicate a numerical or alphanumerical sequence.

4. A quality management system according to claim 1 and wherein said first barcode complies with a first barcode standard and said at least second barcode complies with a barcode standard different from said first barcode standard.

5. A quality management system according to claim 1 and wherein each of said multiplicity of barcoded quality indicators provides a first machine-readable indication prior to said exceedance of said at least one time and temperature threshold and a second machine-readable indication, different from said first machine-readable indication, following said exceedance of said at least one time and temperature threshold.

6. A quality management system according to claim 1 and wherein at least one of said quality indicators is operative to provide a machine-readable indication of exceedance of a time period of less than ten minutes.

7. A quality management system according to claim 1 and wherein at least one of said quality indicators is operative to provide indications of exceedance of several different thresholds.

8. A quality management system according to claim 1 and wherein at least one of said quality indicators is operative to provide said machine-readable indication only following actuation thereof.

9. A quality management system according to claim 8 and wherein prior to said actuation said at least one of said quality indicators is in a first visible state and following said actuation said at least one of said quality indicators is in a second visible state, different from said first visible state, and wherein said at least one of said indicators is machine-readable at least in said second visible state.

10. A quality management system according to claim 9 and wherein said at least one of said indicators is not machine-readable when said at least one of said indicators is in said first visible state.

11. A quality management system according to claim 9 and wherein said at least one of said indicators is machine-readable when said at least one of said indicators is in said first visible state.

12. A quality management system according to claim 1 and wherein at least one of said quality indicators is operative to provide said machine-readable indication only upon activation thereof which occurs automatically a predetermined time following manufacture or actuation thereof.

13. A barcoded quality indicator operative to provide a machine-readable indication of exceedance of at least one time and temperature threshold comprising:

a first barcode including at least one first colorable area, said first barcode being machine-readable before exceedance of said at least one time and temperature threshold;

at least a second barcode including at least one second colorable area, said second barcode not being machine-readable before exceedance of said at least one time and temperature threshold;

a coloring agent located at a first location on said indicator; and

a coloring agent pathway operative to allow said coloring agent to move, at a rate which is at least partially a function of time, from said first location to said first and second colorable areas simultaneously for simultaneous coloring thereof upon exceedance of said time and temperature threshold, thereby causing said first barcode to become unreadable and at the same time causing said second barcode to become machine-readable.

14. A barcoded quality indicator according to claim 13 and wherein said coloring agent pathway is operative to allow said coloring agent to move by diffusing from said first location to said first and said second colorable areas.

15. A barcoded quality indicator according to claim 13 and wherein generally at any time prior to, during and immediately following exceedance of said time and temperature threshold only one of said barcodes is readable.

16. A barcoded quality indicator according to claim 13 and wherein said first location is intermediate the ends of said first and said second barcodes.

17. A barcoded quality indicator according to claim 13 and wherein said quality indicator further comprises a pull strip, said pull strip being suitable to prevent the passage of solvents and coloring agents therethrough before removal thereof, and wherein removal of said pull strip actuates said indicator.

18. A barcoded quality indicator according to claim 13 and wherein said quality indicator further comprises an activation delay layer dissolvable by a solvent, said activation delay layer being suitable to prevent the passage of coloring agents and solvents therethrough before dissolution thereof and wherein said indicators are not activated until dissolution of said delay layer.

19. A method for providing quality management for products comprising:

employing a multiplicity of barcoded quality indicators each operative to provide a machine-readable indication of exceedance of at least one time and temperature threshold, each of said indicators comprising;

a first barcode including at least one first colorable area, said first barcode being machine-readable before exceedance of said at least one time and temperature threshold;

at least a second barcode including at least one second colorable area, said second barcode not being machine-readable before exceedance of said at least one time and temperature threshold;

a coloring agent located at a first location on said indicator; and

a coloring agent pathway operative to allow said coloring agent to move, at a rate which is at least partially a function of time, from said first location to said first and second colorable areas simultaneously for simultaneous coloring thereof upon exceedance of said time and temperature threshold, thereby causing said first barcode to become unreadable and at the same time causing said second barcode to become machine-readable;

each of said barcoded quality indicators being operative to provide a single machine-readable barcode, generally at all times including times prior to, during and immediately following exceedance of said at least one time and temperature threshold, and

reading said barcoded quality indicators to provide output indications;

receiving said output indications; and

interpreting said output indications to provide human sensible, product quality status outputs.

20. A quality management system for products comprising:

a multiplicity of barcoded quality indicators each operative to provide a machine-readable indication of exceedance of at least one threshold by one or more product quality affecting parameters, each of said indicators comprising;

a first barcode including at least one first colorable area, said first barcode being machine-readable before exceedance of said at least one threshold;

at least a second barcode including at least one second colorable area, said second barcode not being machine-readable before exceedance of said at least one threshold;

a coloring agent located at a first location on said indicator; and

a coloring agent pathway operative to allow said coloring agent to move, at a rate which is at least partially a function of time, from said first location to said first and second colorable areas simultaneously for simultaneous coloring thereof upon exceedance of said threshold, thereby causing said first barcode to become unreadable and at the same time causing said second barcode to become machine-readable;

a barcode indicator reader operative to read said barcoded quality indicators and to provide output indications; and

a product type responsive indication interpreter operative to receive said output indications and to provide human sensible, product quality status outputs,

each of said barcoded quality indicators being operative to provide a single machine-readable barcode readable by said barcode indicator reader, generally at all times including times prior to, during and immediately following exceedance of said at least one threshold.

21. A quality management system according to claim 20 and wherein one of said one or more product quality affecting parameters is time.

22. A quality management system according to claim 20 and wherein one of said one or more product quality affecting parameters is temperature.