GB8418936D0 - Frost sensor - Google Patents

Frost sensor

Info

Publication number
GB8418936D0
GB8418936D0 GB848418936A GB8418936A GB8418936D0 GB 8418936 D0 GB8418936 D0 GB 8418936D0 GB 848418936 A GB848418936 A GB 848418936A GB 8418936 A GB8418936 A GB 8418936A GB 8418936 D0 GB8418936 D0 GB 8418936D0
Authority
GB
United Kingdom
Prior art keywords
frost sensor
frost
sensor
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.)
Granted
Application number
GB848418936A
Other versions
GB2143945B (en
GB2143945A (en
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.)
Minister of Agriculture Fisheries and Food UK
Original Assignee
Minister of Agriculture Fisheries and Food UK
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
Priority claimed from GB838320131A external-priority patent/GB8320131D0/en
Application filed by Minister of Agriculture Fisheries and Food UK filed Critical Minister of Agriculture Fisheries and Food UK
Priority to GB08418936A priority Critical patent/GB2143945B/en
Publication of GB8418936D0 publication Critical patent/GB8418936D0/en
Publication of GB2143945A publication Critical patent/GB2143945A/en
Application granted granted Critical
Publication of GB2143945B publication Critical patent/GB2143945B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
    • G01B11/0608—Height gauges
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/02—Detecting the presence of frost or condensate
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/11—Sensor to detect if defrost is necessary
    • F25B2700/111—Sensor to detect if defrost is necessary using an emitter and receiver, e.g. sensing by emitting light or other radiation and receiving reflection by a sensor
GB08418936A 1983-07-26 1984-07-25 Frost sensor Expired GB2143945B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08418936A GB2143945B (en) 1983-07-26 1984-07-25 Frost sensor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB838320131A GB8320131D0 (en) 1983-07-26 1983-07-26 Frost sensor
GB08418936A GB2143945B (en) 1983-07-26 1984-07-25 Frost sensor

Publications (3)

Publication Number Publication Date
GB8418936D0 true GB8418936D0 (en) 1984-08-30
GB2143945A GB2143945A (en) 1985-02-20
GB2143945B GB2143945B (en) 1986-11-19

Family

ID=26286688

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08418936A Expired GB2143945B (en) 1983-07-26 1984-07-25 Frost sensor

Country Status (1)

Country Link
GB (1) GB2143945B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4329609C1 (en) * 1993-09-02 1995-02-02 Kostal Leopold Gmbh & Co Kg Optoelectronic sensor device
ITRM20050634A1 (en) * 2005-12-19 2007-06-20 Ixfin S P A SYSTEM FOR THE AUTOMATED DEFROSTING OF A REFRIGERATOR SYSTEM.
EP2413075B1 (en) * 2010-07-29 2021-02-17 Lg Electronics Inc. Refrigerator and method for controlling the same
CN102278865A (en) * 2011-05-27 2011-12-14 吴法理 Photoelectric-type frost ice sensing controller of refrigerator
EP2574868B1 (en) * 2011-09-29 2019-06-12 LG Electronics Inc. Refrigerator
CN104121755B (en) * 2014-08-11 2015-11-25 顾祥茂 Refrigerator body posterior medial accumulated ice detection alarm system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3822560A (en) * 1972-09-29 1974-07-09 Cutler Hammer Inc Defrost sensor and control circuit
US4109481A (en) * 1976-12-16 1978-08-29 Gte Sylvania Incorporated Frost detector

Also Published As

Publication number Publication date
GB2143945B (en) 1986-11-19
GB2143945A (en) 1985-02-20

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030725