GB2040093B - Instrusion detector - Google Patents

Instrusion detector

Info

Publication number: GB2040093B
Authority: GB; United Kingdom
Prior art keywords: instrusion; detector; instrusion detector
Prior art date: 1979-01-27
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

GB7942261A

Other versions

GB2040093A (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.)

Shorrock Developments Ltd

Original Assignee

Shorrock Developments Ltd

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.)

1979-01-27

Filing date

1979-12-07

Publication date

1983-06-15

1979-12-07 Application filed by Shorrock Developments Ltd filed Critical Shorrock Developments Ltd

1979-12-07 Priority to GB7942261A priority Critical patent/GB2040093B/en

1980-08-20 Publication of GB2040093A publication Critical patent/GB2040093A/en

1983-06-15 Application granted granted Critical

1983-06-15 Publication of GB2040093B publication Critical patent/GB2040093B/en

Status Expired legal-status Critical Current

Classifications

- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/26—Electrical actuation by proximity of an intruder causing variation in capacitance or inductance of a circuit

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Burglar Alarm Systems (AREA)

GB7942261A 1979-01-27 1979-12-07 Instrusion detector Expired GB2040093B (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
GB7942261A GB2040093B (en)	1979-01-27	1979-12-07	Instrusion detector

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB7902960		1979-01-27
GB7942261A GB2040093B (en)	1979-01-27	1979-12-07	Instrusion detector

Publications (2)

Publication Number	Publication Date
GB2040093A GB2040093A (en)	1980-08-20
GB2040093B true GB2040093B (en)	1983-06-15

Family

ID=26270366

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB7942261A Expired GB2040093B (en)	1979-01-27	1979-12-07	Instrusion detector

Country Status (1)

Country	Link
GB (1)	GB2040093B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
IL62589A (en) *	1981-04-05	1988-02-29	Israel Aircraft Ind Ltd	Electromagnetic field perimeter detection apparatus
US4579317A (en) *	1982-02-18	1986-04-01	Siemens Aktiengesellschaft	Electrode arrangement for capacitive guard fences
GB2137789A (en) *	1983-03-30	1984-10-10	Terrance Michael Hayes	Intrusion detector installation
GB2154037B (en) *	1984-02-01	1987-06-10	Thorn Emi Ferguson	Alarm unit
GB2155224B (en) *	1984-03-02	1987-11-18	Shorrock Security Systems Ltd	Intrusion detection barrier
FR2606162B1 (en) *	1986-11-05	1989-02-03	Bertin & Cie	PROXIMITY SENSOR AND ITS APPLICATION TO REMOTE SENSING
GB2259174A (en) *	1991-09-02	1993-03-03	Shorrock Ltd	An intruder detector
CN106934972B (en) *	2015-12-30	2019-07-12	王莉	A kind of induction system and biological response alarm method of biological response warning device
CN106934976B (en) *	2015-12-30	2019-08-16	绵阳市家家安房物联网科技有限公司	A kind of biological response warning device and its application method
CN106934974B (en) *	2015-12-30	2019-07-12	王莉	A kind of excitation system and biological response alarm method of biological response warning device
CN106934975B (en) *	2015-12-30	2019-08-16	绵阳市家家安房物联网科技有限公司	A kind of induction type detector and its detection method

1979
- 1979-12-07 GB GB7942261A patent/GB2040093B/en not_active Expired

Also Published As

Publication number	Publication date
GB2040093A (en)	1980-08-20

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Legal Events

Date	Code	Title	Description
1994-02-02	732E	Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
1996-07-31	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 19951207