Electronic quality indicator

• US 10,697,837 B2
• Filed: 07/07/2016
• Issued: 06/30/2020
• Est. Priority Date: 07/07/2015
• Status: Active Grant

• Current Assignee: Varcode, Ltd.
• Original Assignee: Varcode, Ltd.
• Inventors: Nemet, Yaron, Ben Shahar, Rafael, Koren, Eyal
• Primary Examiner(s): Jagan, Mirellys
• Application Number:
  US15/742,181
• Publication Number:
  US 20180195908A1
• Time in Patent Office: 1,454 Days
• Field of Search: 374162, 374208, 374163, 116216
• CPC Class Codes: G01D 7/005 Indication of measured value by colour change
• CPC Class Codes: G01K 1/02 Means for indicating or recording specially adapted for thermometers
• CPC Class Codes: G01K 11/12 using changes in colour, translucency or reflectance
• CPC Class Codes: G01K 3/005 Circuits arrangements for indicating a predetermined temperature fire detection G08B17/00
• CPC Class Codes: G01K 3/04 in respect of time
• CPC Class Codes: G01K 7/22 the element being a non-linear resistance, e.g. thermistor G01K7/26 takes precedence
• CPC Class Codes: G01N 31/229 for investigating time/temperature history

Abstract

A visually sensible indicator of temperature including electronic temperature sensing circuitry sensing at least when a temperature exceeds at least one predetermined temperature threshold and providing at least one corresponding threshold exceedance output which is sensible as heat and a heat-responsive visually sensible display which is responsive to the at least one threshold exceedance output for providing at least one visually sensible indication indicating that the temperature has exceeded the predetermined temperature threshold.

Claims

1. A visually sensible indicator of temperature comprising:

a barcode,

electronic temperature sensing circuitry sensing at least when a temperature exceeds at least one predetermined temperature threshold and providing at least one corresponding threshold exceedance output which is sensible as heat, said electronic temperature sensing circuitry comprising a mechanism operative to prevent overheating thereof; and

a heat-responsive visually sensible display which is responsive to said at least one threshold exceedance output for providing at least one visually sensible indication indicating that said temperature has exceeded said predetermined temperature threshold, said at least one visually sensible indication being machine readable and part of said barcode.

2. A visually sensible indicator of temperature according to claim 1, wherein said visually sensible indication is human readable.

3. A visually sensible indicator of temperature according to claim 1, wherein said visually sensible indication is rendering said barcode unreadable.

4. A visually sensible indicator of temperature according to claim 1, wherein said exceedance of said predetermined temperature threshold is falling below a given temperature.

5. A visually sensible indicator of temperature according to claim 1, wherein said exceedance of said predetermined temperature threshold is rising above a given temperature.

6. A visually sensible indicator of temperature according to claim 1, wherein said heat-responsive visually sensible display employs a thermochromic material.

7. A visually sensible indicator of temperature according to claim 1, wherein said mechanism operative to prevent overheating comprises a fuse.

8. A visually sensible indicator of at least one parameter including at least one of temperature, time above or below a given temperature range, humidity, and impact, said indicator comprising:

a barcode;

electronic sensing circuitry sensing at least when said at least one parameter exceeds a predetermined threshold and providing a threshold exceedance output which is sensible as heat, said electronic sensing circuitry comprising a mechanism operative to prevent overheating thereof; and

a heat-responsive visually sensible display which is responsive to said threshold exceedance output for providing a visually sensible indication indicating that said at least one parameter has exceeded said predetermined threshold, said visually sensible indication being machine readable and part of said barcode.

9. A visually sensible indicator of at least one parameter according to claim 8, and wherein said visually sensible indication is human readable.

10. A visually sensible indicator of at least one parameter according to claim 8, wherein said visually sensible indication is rendering said barcode unreadable.

11. A visually sensible indicator of at least one parameter according to claim 8, wherein said exceedance of said predetermined threshold is falling below a given temperature.

12. A visually sensible indicator of at least one parameter according to claim 8, and wherein said exceedance of said predetermined threshold is rising above a given temperature.

13. A visually sensible indicator of at least one parameter according to claim 8, and wherein said heat-responsive visually sensible display employs a thermochromic material.

14. A visually sensible indicator of at least one parameter according to claim 8, wherein said mechanism operative to prevent overheating comprises a fuse.