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
Application number
Other languages
German (de)
Inventor
Gmbh Algu
Original Assignee
Gmbh Algu
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gmbh Algu filed Critical Gmbh Algu
Publication of CH258515A publication Critical patent/CH258515A/en

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)

PATENTANSPRUCH: Gerät zur Anzeige von Temperaturen nach dem Patentan#-sprueh II des Haupt- patentes, dadurch gekennzeichnet, dass der wärmelempfindliche Farbstoff in einer Um gebung angeordnet ist, welche die gleiche Farbe aufweist wie der wärmeempfindliche Farbstoff bei gewöhnlicher Temperatur. PATENT CLAIM: Device for displaying temperatures according to patent application II of the main patent, 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.
CH258515D 1946-04-27 1946-04-27 Device for displaying temperatures. CH258515A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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