Temperature and time indicator for confirming high pressure sterilization

Patent metadata

Field	Value
Publication number	US-9404808-B2
Application number	US-201414259438-A
Country	US
Kind code	B2
Filing date	Apr 23, 2014
Priority date	Apr 23, 2013
Publication date	Aug 2, 2016
Grant date	Aug 2, 2016

Abstract

Provided is a temperature and time indicator for confirming sterilization, and more particularly, a temperature and time indicator for confirming sterilization including a development material member, a development medium member, a blocking member, and first and second forming sheets, such that whether medicines or milk products pass through a high temperature sterilization process performed under a regulated temperature and pressure condition is indicated through a sterilization confirming mark to the outside.

First claim

What is claimed is:

1. A temperature and time indicator for confirming sterilization comprising:
a development material member configured to melt when exposed to a specific temperature;
a development medium member configured to absorb and diffuse the development material member;
a blocking member disposed between the development material member and the development medium member, wherein the blocking member comprises
a blocking film having a size equal to or larger than a size of the development material member,
a through-hole disposed at a center of the blocking film, and
a sterilization completion mark disposed on the blocking film, and printed in a specific pattern or form along an outer circumferential surface of the through-hole; and

first and second forming sheets configured to accommodate the development material member and the development medium member in upper and lower sides, wherein the first and second forming sheets are compressed and adhered when exposed to a specific pressure;
wherein the development material comes in contact with the development medium member, through the through-hole formed in the blocking member, to start activation thereof.

2. The temperature and time indicator for confirming sterilization according to claim 1 , wherein the through-hole is configured to enable any one or both of the development material member and the development material to pass therethrough.

3. The temperature and time indicator for confirming sterilization according to claim 2 , wherein the blocking member has a specific pattern or form printed along an outer circumferential surface of the through-hole.

4. The temperature and time indicator for confirming sterilization according to claim 1 , wherein the development material member comprises development material configured to melt at a specific temperature and be absorbed into non-woven fabric.

5. The temperature and time indicator for confirming sterilization according to claim 1 , wherein the development medium member comprises a micro-porous film and is configured to become transparent after coming into contact with the development material.

6. The temperature and time indicator for confirming sterilization according to claim 1 , wherein the first and second forming sheets have adhered surfaces formed at portions thereof, and
the adhered surfaces seal the development material member and the development medium member at upper and lower sides.

7. The temperature and time indicator for confirming sterilization according to claim 6 , wherein the first and second forming sheets are not spoiled and deformed even when exposed to a temperature at which the development material is configured to melt.

Assignees

• Intellectual Discovery Co Ltd
• Inditechkorea Co Ltd

Inventors

• Park Jihoon
• Hong Gilnam
• Lee Misup

Classifications

• G01D21/00

  Measuring or testing not otherwise provided for · CPC title

• G01K5/04

  Details · CPC title

• G01K3/04 Primary

  in respect of time · CPC title

• G01K5/02

  the material being a liquid (contained in a hollow body having parts which are deformable or displaceable under the pressure developed by the material G01K5/32) · CPC title

• G01K1/02

  Means for indicating or recording specially adapted for thermometers · CPC title