GB1553666A - Sequence-control apparatus - Google Patents

Sequence-control apparatus

Info

Publication number
GB1553666A
GB1553666A GB26406/75A GB2640675A GB1553666A GB 1553666 A GB1553666 A GB 1553666A GB 26406/75 A GB26406/75 A GB 26406/75A GB 2640675 A GB2640675 A GB 2640675A GB 1553666 A GB1553666 A GB 1553666A
Authority
GB
United Kingdom
Prior art keywords
sequence
control apparatus
control
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
GB26406/75A
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.)
Smiths Group PLC
Original Assignee
Smiths Group 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 Smiths Group PLC filed Critical Smiths Group PLC
Priority to GB26406/75A priority Critical patent/GB1553666A/en
Publication of GB1553666A publication Critical patent/GB1553666A/en
Expired legal-status Critical Current

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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002—Defroster control
    • F25D21/006—Defroster control with electronic control circuits
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
    • G05D23/1912—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can take more than two discrete values
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
    • 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
    • F25B2700/21—Temperatures
    • F25B2700/2117—Temperatures of an evaporator
GB26406/75A 1976-09-20 1976-09-20 Sequence-control apparatus Expired GB1553666A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB26406/75A GB1553666A (en) 1976-09-20 1976-09-20 Sequence-control apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26406/75A GB1553666A (en) 1976-09-20 1976-09-20 Sequence-control apparatus

Publications (1)

Publication Number Publication Date
GB1553666A true GB1553666A (en) 1979-09-26

Family

ID=10243151

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26406/75A Expired GB1553666A (en) 1976-09-20 1976-09-20 Sequence-control apparatus

Country Status (1)

Country Link
GB (1) GB1553666A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0154119A1 (en) * 1984-02-29 1985-09-11 Danner, Schutzgastechnik und Apparatebau GmbH & Co. Defrost control device for a refrigeration system
GB2191309A (en) * 1985-11-26 1987-12-09 Bejam Group Plc De-frosting system for refrigerated cabinets, freezers or the like
FR2620525A1 (en) * 1987-09-15 1989-03-17 Pont P REGULATION BOX FOR FREEZER-CONSERVATIVE
EP0345098A2 (en) * 1988-06-02 1989-12-06 Hussmann Manufacturing Limited Refrigeration system
EP2505946A1 (en) * 2010-03-30 2012-10-03 Hefei Midea Rongshida Refrigerator Co., Ltd. Air cooled refrigerator, control method and control system thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0154119A1 (en) * 1984-02-29 1985-09-11 Danner, Schutzgastechnik und Apparatebau GmbH & Co. Defrost control device for a refrigeration system
GB2191309A (en) * 1985-11-26 1987-12-09 Bejam Group Plc De-frosting system for refrigerated cabinets, freezers or the like
FR2620525A1 (en) * 1987-09-15 1989-03-17 Pont P REGULATION BOX FOR FREEZER-CONSERVATIVE
EP0312467A1 (en) * 1987-09-15 1989-04-19 Sereth Controlbox for a deep-freezer
EP0345098A2 (en) * 1988-06-02 1989-12-06 Hussmann Manufacturing Limited Refrigeration system
EP0345098A3 (en) * 1988-06-02 1990-12-12 Craig-Nicol Limited Refrigeration system
EP2505946A1 (en) * 2010-03-30 2012-10-03 Hefei Midea Rongshida Refrigerator Co., Ltd. Air cooled refrigerator, control method and control system thereof
EP2505946A4 (en) * 2010-03-30 2013-12-11 Hefei Midea Rongshida Refrigerator Co Ltd Air cooled refrigerator, control method and control system thereof

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Legal Events

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