GB2166868B - Temperature change indicating devices and methods - Google Patents

Temperature change indicating devices and methods

Info

Publication number
GB2166868B
GB2166868B GB8526680A GB8526680A GB2166868B GB 2166868 B GB2166868 B GB 2166868B GB 8526680 A GB8526680 A GB 8526680A GB 8526680 A GB8526680 A GB 8526680A GB 2166868 B GB2166868 B GB 2166868B
Authority
GB
United Kingdom
Prior art keywords
methods
temperature change
indicating devices
change indicating
devices
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.)
Expired
Application number
GB8526680A
Other versions
GB8526680D0 (en
GB2166868A (en
Inventor
Cyril Hilsum
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Publication of GB8526680D0 publication Critical patent/GB8526680D0/en
Publication of GB2166868A publication Critical patent/GB2166868A/en
Application granted granted Critical
Publication of GB2166868B publication Critical patent/GB2166868B/en
Expired legal-status Critical Current

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
GB8526680A 1984-10-31 1985-10-30 Temperature change indicating devices and methods Expired GB2166868B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB848427473A GB8427473D0 (en) 1984-10-31 1984-10-31 Temperature change indicating devices

Publications (3)

Publication Number Publication Date
GB8526680D0 GB8526680D0 (en) 1985-12-04
GB2166868A GB2166868A (en) 1986-05-14
GB2166868B true GB2166868B (en) 1989-05-24

Family

ID=10569006

Family Applications (2)

Application Number Title Priority Date Filing Date
GB848427473A Pending GB8427473D0 (en) 1984-10-31 1984-10-31 Temperature change indicating devices
GB8526680A Expired GB2166868B (en) 1984-10-31 1985-10-30 Temperature change indicating devices and methods

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB848427473A Pending GB8427473D0 (en) 1984-10-31 1984-10-31 Temperature change indicating devices

Country Status (1)

Country Link
GB (2) GB8427473D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2209396A (en) * 1987-09-04 1989-05-10 Daniel Levin Temperature indication
FR2671401A1 (en) * 1991-01-03 1992-07-10 Michaut Pierre Temperature checking device for frozen and deep-frozen foodstuffs

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2064768A (en) * 1979-12-04 1981-06-17 Marcialis S Device indicating excess temperature
EP0138741A2 (en) * 1983-09-05 1985-04-24 Matsumoto Kosan Kabushiki Kaisha Temperature-indicating sheet
GB2155633A (en) * 1983-09-05 1985-09-25 Mitsui Toatsu Chemicals Temperature supervision and display unit
EP0159965A2 (en) * 1984-04-25 1985-10-30 ILFORD Limited Method of monitoring temperatureand device for carrying out said method
EP0161213A2 (en) * 1984-04-25 1985-11-13 Ciba-Geigy Ag Colouring composition for monitoring the temperature

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4509449A (en) * 1982-11-05 1985-04-09 Chalmers Stephen P Temperature/time limit indicator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2064768A (en) * 1979-12-04 1981-06-17 Marcialis S Device indicating excess temperature
EP0138741A2 (en) * 1983-09-05 1985-04-24 Matsumoto Kosan Kabushiki Kaisha Temperature-indicating sheet
GB2155633A (en) * 1983-09-05 1985-09-25 Mitsui Toatsu Chemicals Temperature supervision and display unit
EP0159965A2 (en) * 1984-04-25 1985-10-30 ILFORD Limited Method of monitoring temperatureand device for carrying out said method
EP0161213A2 (en) * 1984-04-25 1985-11-13 Ciba-Geigy Ag Colouring composition for monitoring the temperature

Also Published As

Publication number Publication date
GB8427473D0 (en) 1984-12-05
GB8526680D0 (en) 1985-12-04
GB2166868A (en) 1986-05-14

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19921030