SE9001356D0 - TEMPERATURE MONITORING ALARM DEVICE FOR COOL SPACES - Google Patents

TEMPERATURE MONITORING ALARM DEVICE FOR COOL SPACES

Info

Publication number
SE9001356D0
SE9001356D0 SE9001356A SE9001356A SE9001356D0 SE 9001356 D0 SE9001356 D0 SE 9001356D0 SE 9001356 A SE9001356 A SE 9001356A SE 9001356 A SE9001356 A SE 9001356A SE 9001356 D0 SE9001356 D0 SE 9001356D0
Authority
SE
Sweden
Prior art keywords
container
substance
alarm device
temperature monitoring
temperature
Prior art date
Application number
SE9001356A
Other languages
Swedish (sv)
Other versions
SE9001356A (en
SE465842B (en
Inventor
* Granstroem T
Original Assignee
T Granstroem Konsult Ab
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 T Granstroem Konsult Ab filed Critical T Granstroem Konsult Ab
Priority to SE9001356A priority Critical patent/SE465842B/en
Publication of SE9001356D0 publication Critical patent/SE9001356D0/en
Priority to AU76987/91A priority patent/AU7698791A/en
Priority to PCT/SE1991/000264 priority patent/WO1991016585A1/en
Publication of SE9001356A publication Critical patent/SE9001356A/xx
Publication of SE465842B publication Critical patent/SE465842B/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/008—Alarm devices
    • 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
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/36—Thermally-sensitive members actuated due to expansion or contraction of a fluid with or without vaporisation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/64—Contacts
    • H01H37/70—Resetting means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Emergency Management (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

Alarm system for temperature supervision for a refrigerated compartment comprising sealed container (2) in said compartment which is filled with a substance with a solidifying/melting temperature which is close to the required alarm temperature and with a phase transformation between liquid and solid state which involves a volume change. The container (2) has a, at least, partly resiliently, deformable wall and an end section (2b) of the container has a varying position depending on the existing volume of the substance in the container. This end section (2b) is arranged to activate an electric contact (3) to activate an alarm device (2, 6), when the proportion of liquid phase in the substance in the container (2) exceeds a predetermined value.
SE9001356A 1990-04-17 1990-04-17 TEMPERATURE MONITORING ALARM DEVICE FOR A COLD SPACE SE465842B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9001356A SE465842B (en) 1990-04-17 1990-04-17 TEMPERATURE MONITORING ALARM DEVICE FOR A COLD SPACE
AU76987/91A AU7698791A (en) 1990-04-17 1991-04-11 Alarm system for temperature supervision
PCT/SE1991/000264 WO1991016585A1 (en) 1990-04-17 1991-04-11 Alarm system for temperature supervision

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9001356A SE465842B (en) 1990-04-17 1990-04-17 TEMPERATURE MONITORING ALARM DEVICE FOR A COLD SPACE

Publications (3)

Publication Number Publication Date
SE9001356D0 true SE9001356D0 (en) 1990-04-17
SE9001356A SE9001356A (en) 1991-10-18
SE465842B SE465842B (en) 1991-11-04

Family

ID=20379184

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9001356A SE465842B (en) 1990-04-17 1990-04-17 TEMPERATURE MONITORING ALARM DEVICE FOR A COLD SPACE

Country Status (3)

Country Link
AU (1) AU7698791A (en)
SE (1) SE465842B (en)
WO (1) WO1991016585A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10307933B3 (en) * 2003-02-25 2004-06-03 Ivoclar Vivadent Ag Calibration device for dental oven temperature using metallic melting element with defined melting temperature and device providing indication of its melting
CN111524326B (en) * 2020-04-03 2022-03-08 国网江苏省电力有限公司常州供电分公司 Resident temperature-sensitive load electricity utilization excess alarm method based on historical electricity utilization data

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990716A (en) * 1958-11-04 1961-07-04 Texas Instruments Inc Thermally responsive actuator
US3715924A (en) * 1970-09-04 1973-02-13 Honeywell Inc Fluid expandable temperature apparatus having excessive temperature relief apparatus
GB1446860A (en) * 1972-09-09 1976-08-18 Ranco Controls Ltd Control switch unit
US4075615A (en) * 1977-02-25 1978-02-21 The Raymond Lee Organization, Inc. Freezer alarm
GB2034522A (en) * 1978-11-07 1980-06-04 Ranco Inc Manually resettable thermal switch unit
FR2518799A1 (en) * 1981-12-18 1983-06-24 Thomson Brandt Thermostatic electric switch for refrigerator - has adjustable trigger on mechanical elements to control opening and closing of contacts operable by fluid pressure
SE8700233D0 (en) * 1987-01-21 1987-01-21 Electrolux Ab DEVICE FOR MONITORING OR SOUND TEMPERATURE

Also Published As

Publication number Publication date
WO1991016585A1 (en) 1991-10-31
SE9001356A (en) 1991-10-18
AU7698791A (en) 1991-11-11
SE465842B (en) 1991-11-04

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