GB2416842A - Defrost indicator for food storage freezer - Google Patents
Defrost indicator for food storage freezer Download PDFInfo
- Publication number
- GB2416842A GB2416842A GB0417163A GB0417163A GB2416842A GB 2416842 A GB2416842 A GB 2416842A GB 0417163 A GB0417163 A GB 0417163A GB 0417163 A GB0417163 A GB 0417163A GB 2416842 A GB2416842 A GB 2416842A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fdi
- freezer
- liquid
- defrost
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/06—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using melting, freezing, or softening
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K3/00—Thermometers giving results other than momentary value of temperature
- G01K3/02—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values
- G01K3/04—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values in respect of time
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Cookers (AREA)
Abstract
The indicator comprises an elongate transparent tube with a spherical bulb at one end. A non-toxic liquid partially fills the tube. The tube is initially placed upright with the bulb uppermost and the liquid allowed to freeze. The tube is then inverted as shown and placed in a freezer compartment. If, upon power failure, the compartment defrosts, even for a short period, at least some of the liquid melts and drops into the bulb to indicate the defrost occurrence.
Description
24 1 6842 Freezer Defrost Indicator (FDI) This invention relates to a
simple device that can be placed in a freezer compartment of any food storage device. The device will show if the freezer compartment has defrosted (i.e. power cut) even if the freezer compartment has frozen the contents again thus preventing the possible consumption of spoiled food stuffs stored in the compartment.
The device will indicate if there has been a power cut which has caused the freezer to defrost and then refreeze when the power has been restored whilst left unattended for any period of time i.e. vacation The device consists of a liquid container which is shaped to hold a volume of liquid in either a thin tubular section or a spherical section below. The container will have liquid inside which will freeze and thaw at the appropriate temperatures.
The device will be capable of standing on either end and also be constructed of a clear material suitable for sub zero temperatures Drawing ref FDI- I outline drawing of device in the various stages of operation Figure 1 - Shows the FDI before it is placed in the freezer Figure 2 Shows the FDI inverted and placed into the freezer (indicator fluid still liquid) Figure 3 - Shows the FDI inverted in the freezer (indicator fluid frozen) Figure 4 - Shows the FDI in the operation position (indicator fluid frozen) Figure 5 - Shows the FDI in the operation position as the indicator fluid melts Figure 6 - Shows the FD1 in the operation position if the indicator fluid has refrozen The FDI will be constructed of a clear material and be no longer than lOOmm to allow it to stand up in a freezer drawer / compartment. It would be cylindrical with a larger diameter base than upper section. The indicator fluid would be a non toxic substance which would freeze at sub zero temperatures and that above zero degrees Celsius.
Each end would have a suitable base to allow the device to stand up in the freezer compartment.
Claims (4)
- Freezer Defrost Indicator (FD1) 1. The FDI will indicate if there has been a power cut which has caused the freezer to defrost and then refreeze when the power has been restored whilst left unattended for any period of time i.e. vacation
- 2. The FDI consists of a clear liquid container which is shaped to hold a volume of non toxic liquid in either a thin tubular section or a spherical section below.
- 3. The container will have liquid inside which will freeze and thaw at the appropriate temperatures.
- 4. The FDI will be capable of standing up on either end and also be constructed of a clear material suitable for sub zero temperatures
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0417163A GB2416842A (en) | 2004-07-31 | 2004-07-31 | Defrost indicator for food storage freezer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0417163A GB2416842A (en) | 2004-07-31 | 2004-07-31 | Defrost indicator for food storage freezer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0417163D0 GB0417163D0 (en) | 2004-09-01 |
| GB2416842A true GB2416842A (en) | 2006-02-08 |
Family
ID=32947822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0417163A Withdrawn GB2416842A (en) | 2004-07-31 | 2004-07-31 | Defrost indicator for food storage freezer |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2416842A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITTO20100006A1 (en) * | 2010-01-08 | 2011-07-09 | Indesit Co Spa | DEVICE FOR DETECTING THE OVERRIDE OF A TEMPERATURE THRESHOLD |
| ITCR20120009A1 (en) * | 2012-04-03 | 2013-10-04 | Cristian Fracassi | DEFROST INDICATOR DEVICE |
| US20140373772A1 (en) * | 2013-06-21 | 2014-12-25 | Larry G. Laurain | Freezer failure indicator |
| DE102016005133A1 (en) * | 2016-04-27 | 2017-11-02 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method and device for monitoring the temperature of a cryopreserved biological sample |
| US11085834B2 (en) | 2016-04-27 | 2021-08-10 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E. V. | Device and method for monitoring the temperature of a cryogenically preserved biological sample |
| US11166454B2 (en) | 2016-04-27 | 2021-11-09 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E. V. | Method and device for the temperature monitoring of a cryopreserved biological sample |
| US11549851B2 (en) | 2016-04-27 | 2023-01-10 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E. V. | Device and method for monitoring the temperature of a cryopreserved biological sample |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH625618A5 (en) * | 1978-10-02 | 1981-09-30 | Abdelaziz Bekhechi | Apparatus for checking and monitoring temperature |
| FR2538901A1 (en) * | 1982-12-31 | 1984-07-06 | Enerscop | Methods and devices for integrating the overshooting of a temperature threshold for the duration of the overshoot |
| SU1295166A1 (en) * | 1985-03-26 | 1987-03-07 | Кишиневский Завод Холодильников | Thaw indicator |
| FR2608278A1 (en) * | 1986-12-11 | 1988-06-17 | Leroux Claire | Method and device for detecting and remembering the reheating of an enclosed space beyond a given temperature threshold |
| GB2235969A (en) * | 1989-07-21 | 1991-03-20 | Francis Vincent Hurley | Refrigeration indicator device |
| FR2676532A1 (en) * | 1991-05-16 | 1992-11-20 | Codex Etudes | Device for monitoring temperature in a freezing chamber |
| RU2018098C1 (en) * | 1991-07-03 | 1994-08-15 | Технический университет Молдовы | Defrosting indicator |
| FR2720157A1 (en) * | 1994-05-17 | 1995-11-24 | Premark Feg Corp | Frozen food or pharmaceutical product temperature status indicator |
| US5924294A (en) * | 1994-05-17 | 1999-07-20 | Premark Feg L.L.C. | Self-contained device for controlling limit temperature during the transport of perishable foodstuffs |
| BE1014663A6 (en) * | 2002-02-26 | 2004-02-03 | Fosse Michel | Frozen food monitoring device comprises an egg timer shaped device that contains colored ice or similar in one end that is inserted within the freezer container so that its failure for any significant period can be detected |
-
2004
- 2004-07-31 GB GB0417163A patent/GB2416842A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH625618A5 (en) * | 1978-10-02 | 1981-09-30 | Abdelaziz Bekhechi | Apparatus for checking and monitoring temperature |
| FR2538901A1 (en) * | 1982-12-31 | 1984-07-06 | Enerscop | Methods and devices for integrating the overshooting of a temperature threshold for the duration of the overshoot |
| SU1295166A1 (en) * | 1985-03-26 | 1987-03-07 | Кишиневский Завод Холодильников | Thaw indicator |
| FR2608278A1 (en) * | 1986-12-11 | 1988-06-17 | Leroux Claire | Method and device for detecting and remembering the reheating of an enclosed space beyond a given temperature threshold |
| GB2235969A (en) * | 1989-07-21 | 1991-03-20 | Francis Vincent Hurley | Refrigeration indicator device |
| FR2676532A1 (en) * | 1991-05-16 | 1992-11-20 | Codex Etudes | Device for monitoring temperature in a freezing chamber |
| RU2018098C1 (en) * | 1991-07-03 | 1994-08-15 | Технический университет Молдовы | Defrosting indicator |
| FR2720157A1 (en) * | 1994-05-17 | 1995-11-24 | Premark Feg Corp | Frozen food or pharmaceutical product temperature status indicator |
| US5924294A (en) * | 1994-05-17 | 1999-07-20 | Premark Feg L.L.C. | Self-contained device for controlling limit temperature during the transport of perishable foodstuffs |
| BE1014663A6 (en) * | 2002-02-26 | 2004-02-03 | Fosse Michel | Frozen food monitoring device comprises an egg timer shaped device that contains colored ice or similar in one end that is inserted within the freezer container so that its failure for any significant period can be detected |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITTO20100006A1 (en) * | 2010-01-08 | 2011-07-09 | Indesit Co Spa | DEVICE FOR DETECTING THE OVERRIDE OF A TEMPERATURE THRESHOLD |
| ITCR20120009A1 (en) * | 2012-04-03 | 2013-10-04 | Cristian Fracassi | DEFROST INDICATOR DEVICE |
| US20140373772A1 (en) * | 2013-06-21 | 2014-12-25 | Larry G. Laurain | Freezer failure indicator |
| US9217676B2 (en) * | 2013-06-21 | 2015-12-22 | Larry G. Laurain | Freezer failure indicator |
| DE102016005133A1 (en) * | 2016-04-27 | 2017-11-02 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method and device for monitoring the temperature of a cryopreserved biological sample |
| US11085834B2 (en) | 2016-04-27 | 2021-08-10 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E. V. | Device and method for monitoring the temperature of a cryogenically preserved biological sample |
| US11166454B2 (en) | 2016-04-27 | 2021-11-09 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E. V. | Method and device for the temperature monitoring of a cryopreserved biological sample |
| US11549851B2 (en) | 2016-04-27 | 2023-01-10 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E. V. | Device and method for monitoring the temperature of a cryopreserved biological sample |
| US11606952B2 (en) | 2016-04-27 | 2023-03-21 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Method and device for the temperature monitoring of a cryopreserved biological sample |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0417163D0 (en) | 2004-09-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |