GB2143945B - Frost sensor - Google Patents

Frost sensor

Info

Publication number
GB2143945B
GB2143945B GB08418936A GB8418936A GB2143945B GB 2143945 B GB2143945 B GB 2143945B GB 08418936 A GB08418936 A GB 08418936A GB 8418936 A GB8418936 A GB 8418936A GB 2143945 B GB2143945 B GB 2143945B
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.)
Expired
Application number
GB08418936A
Other versions
GB8418936D0 (en
GB2143945A (en
Inventor
Frederick James Nicholson
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.)
AGRICULTURE FISHERIES AND FOOD
Minister of Agriculture Fisheries and Food UK
Original Assignee
AGRICULTURE FISHERIES AND FOOD
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 AGRICULTURE FISHERIES AND FOOD, Minister of Agriculture Fisheries and Food UK filed Critical AGRICULTURE FISHERIES AND FOOD
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 GB8418936D0 (en) 1984-08-30
GB2143945A GB2143945A (en) 1985-02-20
GB2143945B true 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
CN104764289B (en) * 2014-08-11 2015-12-02 无锡美联动线智能科技有限公司 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
GB8418936D0 (en) 1984-08-30
GB2143945A (en) 1985-02-20

Similar Documents

Publication Publication Date Title
GB2151848B (en) Magnetic-field sensor
GB8327814D0 (en) Sensor
DE3467264D1 (en) Position sensor
GB8411797D0 (en) Current-detecting sensor
GB8431017D0 (en) Sensor
DE3479256D1 (en) Movement sensor
GB8410883D0 (en) Moisture sensor
GB8409728D0 (en) Position sensors
GB8411981D0 (en) Sensors
GB8429672D0 (en) Sensor arrangement
GB2149513B (en) Proximity sensor
GB8329004D0 (en) Sensors
GB8410877D0 (en) Moisture sensor
GB8428934D0 (en) Sensors
GB8526063D0 (en) Sensors
GB8427380D0 (en) Sensors
GB2137390B (en) Sensor assembly
EP0123128A3 (en) Electrooptical sensor
GB2143945B (en) Frost sensor
GB8329002D0 (en) Sensors
GB8427382D0 (en) Sensors
GB8424291D0 (en) Sensors
GB8320131D0 (en) Frost sensor
GB8523638D0 (en) Sensors
GB8325267D0 (en) Sensors

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