GB9911600D0 - Alarm system - Google Patents

Alarm system

Info

Publication number
GB9911600D0
GB9911600D0 GBGB9911600.6A GB9911600A GB9911600D0 GB 9911600 D0 GB9911600 D0 GB 9911600D0 GB 9911600 A GB9911600 A GB 9911600A GB 9911600 D0 GB9911600 D0 GB 9911600D0
Authority
GB
United Kingdom
Prior art keywords
alarm system
alarm
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.)
Withdrawn
Application number
GBGB9911600.6A
Other versions
GB2350221A (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.)
WOOLF JEFFREY M
Original Assignee
WOOLF JEFFREY M
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 WOOLF JEFFREY M filed Critical WOOLF JEFFREY M
Priority to GB9911600A priority Critical patent/GB2350221A/en
Publication of GB9911600D0 publication Critical patent/GB9911600D0/en
Publication of GB2350221A publication Critical patent/GB2350221A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
    • G08B13/183—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
GB9911600A 1999-05-19 1999-05-19 Intruder alarm system Withdrawn GB2350221A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9911600A GB2350221A (en) 1999-05-19 1999-05-19 Intruder alarm system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9911600A GB2350221A (en) 1999-05-19 1999-05-19 Intruder alarm system

Publications (2)

Publication Number Publication Date
GB9911600D0 true GB9911600D0 (en) 1999-07-21
GB2350221A GB2350221A (en) 2000-11-22

Family

ID=10853716

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9911600A Withdrawn GB2350221A (en) 1999-05-19 1999-05-19 Intruder alarm system

Country Status (1)

Country Link
GB (1) GB2350221A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109287612A (en) * 2018-09-18 2019-02-01 刘泽宇 One kind prevents pet from making a dash across the red light system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7286056B2 (en) 2005-03-22 2007-10-23 Lawrence Kates System and method for pest detection
US7411497B2 (en) * 2006-08-15 2008-08-12 Lawrence Kates System and method for intruder detection

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5143760B2 (en) * 1971-09-28 1976-11-24
US3732555A (en) * 1972-03-13 1973-05-08 Sperry Rand Corp Selective intrusion alarm system
US4471343A (en) * 1977-12-27 1984-09-11 Lemelson Jerome H Electronic detection systems and methods
GB1604837A (en) * 1978-05-25 1981-12-16 Mastiff Security Syst Ltd Intruder detector
GB2095016A (en) * 1981-03-11 1982-09-22 Duckworth Brian Alarm system
GB2228120A (en) * 1989-02-11 1990-08-15 Nigel Stafford Mark Day Intruder alarm system disarmed by radio signal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109287612A (en) * 2018-09-18 2019-02-01 刘泽宇 One kind prevents pet from making a dash across the red light system

Also Published As

Publication number Publication date
GB2350221A (en) 2000-11-22

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)