GB9707434D0 - Light scattering type smoke sensor - Google Patents

Light scattering type smoke sensor

Info

Publication number: GB9707434D0
Authority: GB; United Kingdom
Prior art keywords: light scattering; smoke sensor; scattering type; type smoke; sensor
Prior art date: 1993-09-07
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.): Granted

Application number

GBGB9707434.8A

Other versions

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.)

Hochiki Corp

Original Assignee

Hochiki Corp

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.)

1993-09-07

Filing date

1994-09-02

Publication date

1997-05-28

1993-09-07 Priority claimed from JP5221551A external-priority patent/JP2721788B2/en

1993-09-07 Priority claimed from JP5221549A external-priority patent/JP3015634B2/en

1993-09-07 Priority claimed from JP5221550A external-priority patent/JP3015635B2/en

1993-09-07 Priority claimed from JP5221548A external-priority patent/JP3015633B2/en

1994-09-02 Application filed by Hochiki Corp filed Critical Hochiki Corp

1994-09-02 Priority claimed from GB9417669A external-priority patent/GB2281619B/en

1997-05-28 Publication of GB9707434D0 publication Critical patent/GB9707434D0/en

1997-07-16 Publication of GB2309080A publication Critical patent/GB2309080A/en

1997-10-22 Application granted granted Critical

1997-10-22 Publication of GB2309080B publication Critical patent/GB2309080B/en

2014-09-02 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Classifications

- 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
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
- G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
- 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

Landscapes

Chemical & Material Sciences (AREA)
Analytical Chemistry (AREA)
Business, Economics & Management (AREA)
Emergency Management (AREA)
Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Fire-Detection Mechanisms (AREA)

GB9707434A 1993-09-07 1994-09-02 Light scattering type smoke sensor Expired - Lifetime GB2309080B (en)

Applications Claiming Priority (5)

Application Number	Priority Date	Filing Date	Title
JP5221551A JP2721788B2 (en)	1993-09-07	1993-09-07	Scattered light smoke detector
JP5221549A JP3015634B2 (en)	1993-09-07	1993-09-07	Scattered light smoke detector
JP5221550A JP3015635B2 (en)	1993-09-07	1993-09-07	Scattered light smoke detector
JP5221548A JP3015633B2 (en)	1993-09-07	1993-09-07	Scattered light smoke detector
GB9417669A GB2281619B (en)	1993-09-07	1994-09-02	Light scattering type smoke sensor

Publications (3)

Publication Number	Publication Date
GB9707434D0 true GB9707434D0 (en)	1997-05-28
GB2309080A GB2309080A (en)	1997-07-16
GB2309080B GB2309080B (en)	1997-10-22

Family

ID=27517259

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
GB9707433A Expired - Lifetime GB2309079B (en)	1993-09-07	1994-09-02	Light scattering type smoke sensor
GB9707434A Expired - Lifetime GB2309080B (en)	1993-09-07	1994-09-02	Light scattering type smoke sensor

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
GB9707433A Expired - Lifetime GB2309079B (en)	1993-09-07	1994-09-02	Light scattering type smoke sensor

Country Status (1)

Country	Link
GB (2)	GB2309079B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP3370032B2 (en) *	1999-11-01	2003-01-27	ホーチキ株式会社	Photoelectric smoke detector and smoke detector assembly
CN110930631A (en) *	2019-11-26	2020-03-27	福建好神奇电子科技有限公司	Photoelectric fire smoke alarm and smoke detection deviation compensation method thereof
CA3146651A1 (en) *	2021-02-04	2022-08-04	Carrier Corporation	Corrugated bug screen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4539556A (en) *	1983-04-15	1985-09-03	Pittway Corporation	Combustion products detector with accelerated test
JP2648560B2 (en) *	1993-04-09	1997-09-03	ホーチキ株式会社	Scattered light smoke detector

1994
- 1994-09-02 GB GB9707433A patent/GB2309079B/en not_active Expired - Lifetime
- 1994-09-02 GB GB9707434A patent/GB2309080B/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
GB2309080A (en)	1997-07-16
GB9707433D0 (en)	1997-05-28
GB2309080B (en)	1997-10-22
GB2309079A (en)	1997-07-16
GB2309079B (en)	1997-10-22

Publication	Publication Date	Title
GB2267342B (en)	1996-05-29	Smoke sensor
GB2270157B (en)	1996-07-24	Light scattering type smoke detector
CA75393S (en)	1994-12-29	Light
GB2281619B (en)	1997-10-22	Light scattering type smoke sensor
AUPN027694A0 (en)	1995-01-27	Light sensor
GB2273769B (en)	1996-08-28	Proportional light scattering sensor
GB9300688D0 (en)	1993-03-03	Improved smoke meter
IL110733A0 (en)	1994-11-11	Smoke grenade
GB9213737D0 (en)	1992-08-12	Light measurement
GB2327752B (en)	2001-05-02	Optical scatter smoke sensor
GB2309079B (en)	1997-10-22	Light scattering type smoke sensor
GB2269665B (en)	1996-05-22	Optical beam smoke sensor
GB2278966B (en)	1997-03-26	Light fitting
GB2275348B (en)	1996-06-19	Optical sensors
GB9310987D0 (en)	1993-07-14	Smoke alarm
GB2278719B (en)	1997-03-26	Ionic smoke detector
AU119573S (en)	1994-03-07	Optical smoke detector
GB9302200D0 (en)	1993-03-24	Smoke sensing arrangements
TW300617U (en)	1997-03-11	Kangaroo warning light
GB9512237D0 (en)	1995-08-16	Smoke detector
GB9608357D0 (en)	1996-06-26	Smoke detector
TW296029U (en)	1997-01-11	Improved alarm light
PL293854A1 (en)	1993-09-20	Optical smoke detector
GB9319121D0 (en)	1993-11-03	Smoke alarm
GB9301978D0 (en)	1993-03-17	Combined light fitting and smoke alarm

Legal Events

Date	Code	Title	Description
2014-09-24	PE20	Patent expired after termination of 20 years	Expiry date: 20140901