CH258515A - Device for displaying temperatures. - Google Patents
Device for displaying temperatures.Info
- Publication number
- CH258515A CH258515A CH258515DA CH258515A CH 258515 A CH258515 A CH 258515A CH 258515D A CH258515D A CH 258515DA CH 258515 A CH258515 A CH 258515A
- Authority
- CH
- Switzerland
- Prior art keywords
- displaying temperatures
- heat
- displaying
- temperatures
- sensitive dye
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D7/00—Indicating measured values
-
- 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
- G01K11/12—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Description
Gerät zur Anzeige von Temperaturen. Im Hauptpatent ist ein Gerät zur An zeige von Temperaturen beschrieben, welches einen Träger aufweist, der mit einem durch Wärmeeinfluss umschlagenden Farbstoff ver sehen ist. GegenMand des vorliegenden Pa tentes ist nun ein Gerät dieser Art, welches dadurch gekennzeichnet ist, dass der wärme empfindliche Farbstoff in einer Umgebung angeordnet ist, welche die gleiche Farbe auf weist wie der wärmeempfindliche Farbstoff bei gewöhnlicher Temperatur.
Der wärme- empfindliche Farbstoff kann beispieLweis@e in der Form von Buchstaben, Ziffern oder irgendwelchen Figuren aufgebracht sein. Die Beschriftung usw. wird erst sichtbar, wenn die Umschlagstemperatur des Farbstoffes er reicht ist.
Device for displaying temperatures. In the main patent, a device for displaying temperatures is described, which has a carrier which is seen ver with a dye changing under the influence of heat. Against the subject of the present patent is a device of this type, which is characterized in that the heat-sensitive dye is arranged in an environment which has the same color as the heat-sensitive dye at ordinary temperature.
The heat-sensitive dye can be applied, for example, in the form of letters, numbers or any other figures. The lettering etc. is only visible when the temperature of the dye has reached its limit.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH258515T | 1946-04-27 | ||
| CH248848T | 1946-07-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH258515A true CH258515A (en) | 1948-11-30 |
Family
ID=25729312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH258515D CH258515A (en) | 1946-04-27 | 1946-04-27 | Device for displaying temperatures. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH258515A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1548837B1 (en) * | 1965-10-24 | 1970-09-24 | Texas Instruments Inc | Device for displaying information |
| EP0060025A2 (en) * | 1981-02-06 | 1982-09-15 | Ernst Spirig | Temperature indicator |
-
1946
- 1946-04-27 CH CH258515D patent/CH258515A/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1548837B1 (en) * | 1965-10-24 | 1970-09-24 | Texas Instruments Inc | Device for displaying information |
| EP0060025A2 (en) * | 1981-02-06 | 1982-09-15 | Ernst Spirig | Temperature indicator |
| EP0060025A3 (en) * | 1981-02-06 | 1983-04-20 | Ernst Spirig | Temperature indicator |
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