GB2009399B - Photoelectric smoke detector - Google Patents

Photoelectric smoke detector

Info

Publication number: GB2009399B
Authority: GB; United Kingdom
Prior art keywords: smoke detector; photoelectric smoke; photoelectric; detector; smoke
Prior art date: 1977-11-29
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

GB7846512A

Other versions

GB2009399A (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.)

Chloride Inc

Original Assignee

Chloride Inc

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.)

1977-11-29

Filing date

1978-11-29

Publication date

1982-05-19

1977-11-29 Priority claimed from US05/855,624 external-priority patent/US4144459A/en

1977-11-29 Priority claimed from US05/855,623 external-priority patent/US4144458A/en

1978-11-29 Application filed by Chloride Inc filed Critical Chloride Inc

1979-06-13 Publication of GB2009399A publication Critical patent/GB2009399A/en

1982-05-19 Application granted granted Critical

1982-05-19 Publication of GB2009399B publication Critical patent/GB2009399B/en

Status Expired legal-status Critical Current

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/4785—Standardising light scatter apparatus; Standards therefor
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
- G08B17/113—Constructional details
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Chemical & Material Sciences (AREA)
Analytical Chemistry (AREA)
Business, Economics & Management (AREA)
Emergency Management (AREA)
Health & Medical Sciences (AREA)
Computer Security & Cryptography (AREA)
Engineering & Computer Science (AREA)
Life Sciences & Earth Sciences (AREA)
Biochemistry (AREA)
General Health & Medical Sciences (AREA)
Immunology (AREA)
Pathology (AREA)
Investigating Or Analysing Materials By Optical Means (AREA)
Fire-Detection Mechanisms (AREA)

GB7846512A 1977-11-29 1978-11-29 Photoelectric smoke detector Expired GB2009399B (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US05/855,624 US4144459A (en)	1977-11-29	1977-11-29	Smoke detector with test means for simulating a predetermined percentage of smoke
US05/855,623 US4144458A (en)	1977-11-29	1977-11-29	Smoke detector with test means for simulating a predetermined concentration of smoke

Publications (2)

Publication Number	Publication Date
GB2009399A GB2009399A (en)	1979-06-13
GB2009399B true GB2009399B (en)	1982-05-19

Family

ID=27127301

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB7846512A Expired GB2009399B (en)	1977-11-29	1978-11-29	Photoelectric smoke detector

Country Status (5)

Country	Link
JP (1)	JPS5491395A (en)
AU (1)	AU516023B2 (en)
CA (1)	CA1119269A (en)
DE (1)	DE2851660A1 (en)
GB (1)	GB2009399B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4306230A (en) *	1979-12-10	1981-12-15	Honeywell Inc.	Self-checking photoelectric smoke detector
JPS626144A (en) *	1985-07-03	1987-01-13	Nittan Co Ltd	Photoelectric type smoke sensor
GB2259761B (en) *	1991-09-18	1995-04-05	Graviner Ltd Kidde	Smoke and particle detector
JP3251407B2 (en) *	1993-12-22	2002-01-28	能美防災株式会社	Photoelectric fire detector and adjuster
US11132891B2 (en) *	2019-08-27	2021-09-28	Honeywell International Inc.	Self-testing fire sensing device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4021792A (en) *	1975-06-23	1977-05-03	Wellen Industries	Smoke alarm
JPS52141682A (en) *	1976-05-20	1977-11-26	Matsushita Electric Works Ltd	Sensitivity tester of photoelectric sensor

1978
- 1978-11-28 AU AU41980/78A patent/AU516023B2/en not_active Expired
- 1978-11-29 JP JP14769378A patent/JPS5491395A/en active Pending
- 1978-11-29 GB GB7846512A patent/GB2009399B/en not_active Expired
- 1978-11-29 CA CA000317076A patent/CA1119269A/en not_active Expired
- 1978-11-29 DE DE19782851660 patent/DE2851660A1/en not_active Withdrawn

Also Published As

Publication number	Publication date
DE2851660A1 (en)	1979-06-07
GB2009399A (en)	1979-06-13
JPS5491395A (en)	1979-07-19
CA1119269A (en)	1982-03-02
AU4198078A (en)	1979-06-07
AU516023B2 (en)	1981-05-14

Publication	Publication Date	Title
GB2000863B (en)	1982-02-03	Smoke detectors
ZA763862B (en)	1977-05-25	Photodiode smoke detector
JPS5485095A (en)	1979-07-06	Smoke detector
GB2000868B (en)	1982-11-17	Smoke detector
JPS5430056A (en)	1979-03-06	Photoelectric detector
JPS5494094A (en)	1979-07-25	Smoke detector
JPS5439181A (en)	1979-03-26	Photoelectric smoke detector
GB2009399B (en)	1982-05-19	Photoelectric smoke detector
DE2964227D1 (en)	1983-01-13	Photoelectric smoke detector
JPS5443787A (en)	1979-04-06	Photoelectric detector
JPS53106081A (en)	1978-09-14	Smoke detector
JPS53143287A (en)	1978-12-13	Photoelectric smoke detector
JPS53114475A (en)	1978-10-05	Photoelectric smoke detector
JPS5427485A (en)	1979-03-01	Photoelectric smoke detector
JPS547389A (en)	1979-01-20	Photoelectric smoke detector
JPS5397481A (en)	1978-08-25	Smoke detector
JPS5543602A (en)	1980-03-27	Photoelectric smoke detector
JPS53138385A (en)	1978-12-02	Optical smoke detector
GB2013393B (en)	1982-03-03	Smoke detectors
GB2010578B (en)	1982-09-15	Smoke detectors
GB1557187A (en)	1979-12-05	Smoke detectors
CA41620S (en)	1977-01-17	Smoke detector
JPS5451552A (en)	1979-04-23	Photoelectric position detector
DE2860266D1 (en)	1981-01-29	Fire detector
JPS53141684A (en)	1978-12-09	Optical smoke detector

Legal Events

Date	Code	Title	Description
1983-05-11	732	Registration of transactions, instruments or events in the register (sect. 32/1977)
1984-08-08	PCNP	Patent ceased through non-payment of renewal fee