GB2228353B - Improvements relating to electrical appliances - Google Patents

Improvements relating to electrical appliances

Info

Publication number
GB2228353B
GB2228353B GB8903739A GB8903739A GB2228353B GB 2228353 B GB2228353 B GB 2228353B GB 8903739 A GB8903739 A GB 8903739A GB 8903739 A GB8903739 A GB 8903739A GB 2228353 B GB2228353 B GB 2228353B
Authority
GB
United Kingdom
Prior art keywords
electrical appliances
improvements relating
relating
appliances
electrical
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 - Lifetime
Application number
GB8903739A
Other versions
GB2228353A (en
GB8903739D0 (en
Inventor
William John Porter
Simon John Clark
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.)
Kenwood Ltd
Kenwood Marks Ltd
Thorn EMI PLC
Original Assignee
Kenwood Ltd
Kenwood Marks Ltd
Thorn EMI 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 Kenwood Ltd, Kenwood Marks Ltd, Thorn EMI PLC filed Critical Kenwood Ltd
Priority to GB8903739A priority Critical patent/GB2228353B/en
Publication of GB8903739D0 publication Critical patent/GB8903739D0/en
Publication of GB2228353A publication Critical patent/GB2228353A/en
Application granted granted Critical
Publication of GB2228353B publication Critical patent/GB2228353B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G08B21/185—Electrical failure alarms
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
GB8903739A 1989-02-18 1989-02-18 Improvements relating to electrical appliances Expired - Lifetime GB2228353B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8903739A GB2228353B (en) 1989-02-18 1989-02-18 Improvements relating to electrical appliances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8903739A GB2228353B (en) 1989-02-18 1989-02-18 Improvements relating to electrical appliances

Publications (3)

Publication Number Publication Date
GB8903739D0 GB8903739D0 (en) 1989-04-05
GB2228353A GB2228353A (en) 1990-08-22
GB2228353B true GB2228353B (en) 1992-11-18

Family

ID=10651937

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8903739A Expired - Lifetime GB2228353B (en) 1989-02-18 1989-02-18 Improvements relating to electrical appliances

Country Status (1)

Country Link
GB (1) GB2228353B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9112867D0 (en) * 1991-06-14 1991-07-31 Huntleigh Technology Plc Power fail detection circuit
GB9710177D0 (en) * 1997-05-19 1997-07-09 Ramadan Ahme A Domestic electric kettle alarm
US6571422B1 (en) 2000-08-01 2003-06-03 The Hoover Company Vacuum cleaner with a microprocessor-based dirt detection circuit
WO2003034363A1 (en) * 2001-10-19 2003-04-24 Pertinax International Limited Input/output signal power down alarm detector
CN103235230B (en) * 2013-04-16 2015-11-18 国网山西省电力公司晋城供电公司 A kind of passive automatic power cut off alarm device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1128267A (en) * 1966-11-10 1968-09-25 Continental Instr Corp Theft-preventing alarm device
US3678491A (en) * 1970-07-20 1972-07-18 American Optical Corp Instrument power-disconnect alarm
US4237450A (en) * 1978-11-13 1980-12-02 Canez Antonio R Appliance theft alarm
US4284983A (en) * 1980-02-19 1981-08-18 Lent Roger S Appliance anti-theft and protection circuitry
GB2124422A (en) * 1982-05-14 1984-02-15 Alan Johnson Theft alarms
GB2133192A (en) * 1982-11-03 1984-07-18 Alan Webb Alarm unit
GB2151057A (en) * 1983-11-17 1985-07-10 Sakis Roy Alarm device
GB2158277A (en) * 1983-11-03 1985-11-06 Raymond John Corton Continuous security alarm for current consuming equipments

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1128267A (en) * 1966-11-10 1968-09-25 Continental Instr Corp Theft-preventing alarm device
US3678491A (en) * 1970-07-20 1972-07-18 American Optical Corp Instrument power-disconnect alarm
US4237450A (en) * 1978-11-13 1980-12-02 Canez Antonio R Appliance theft alarm
US4284983A (en) * 1980-02-19 1981-08-18 Lent Roger S Appliance anti-theft and protection circuitry
GB2124422A (en) * 1982-05-14 1984-02-15 Alan Johnson Theft alarms
GB2133192A (en) * 1982-11-03 1984-07-18 Alan Webb Alarm unit
GB2158277A (en) * 1983-11-03 1985-11-06 Raymond John Corton Continuous security alarm for current consuming equipments
GB2151057A (en) * 1983-11-17 1985-07-10 Sakis Roy Alarm device

Also Published As

Publication number Publication date
GB2228353A (en) 1990-08-22
GB8903739D0 (en) 1989-04-05

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20060218

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)