AT384903B - Lichtschranke - Google Patents

Lichtschranke

Info

Publication number: AT384903B
Authority: AT; Austria
Prior art keywords: photoelectric barrier; photoelectric; barrier
Prior art date: 1979-06-27

Application number

AT0336280A

Other languages

English (en)

Other versions

ATA336280A (de

Original Assignee

Hochiki Kabushiki Kaisha Hochi

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.)

1979-06-27

Filing date

1980-06-26

Publication date

1988-01-25

1979-06-27 Priority claimed from JP8009579A external-priority patent/JPS5932838B2/ja

1979-07-03 Priority claimed from JP8344679A external-priority patent/JPS5832439B2/ja

1980-06-26 Application filed by Hochiki Kabushiki Kaisha Hochi filed Critical Hochiki Kabushiki Kaisha Hochi

1987-06-15 Publication of ATA336280A publication Critical patent/ATA336280A/de

1988-01-25 Application granted granted Critical

1988-01-25 Publication of AT384903B publication Critical patent/AT384903B/de

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

Landscapes

Chemical & Material Sciences (AREA)
Analytical Chemistry (AREA)
Business, Economics & Management (AREA)
Emergency Management (AREA)
Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Geophysics And Detection Of Objects (AREA)
Optical Communication System (AREA)

AT0336280A 1979-06-27 1980-06-26 Lichtschranke AT384903B (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP8009579A JPS5932838B2 (ja)	1979-06-27	1979-06-27	光電式検出器
JP8344679A JPS5832439B2 (ja)	1979-07-03	1979-07-03	減光式分離型火災感知器

Publications (2)

Publication Number	Publication Date
ATA336280A ATA336280A (de)	1987-06-15
AT384903B true AT384903B (de)	1988-01-25

Family

ID=26421141

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT0336280A AT384903B (de)	1979-06-27	1980-06-26	Lichtschranke

Country Status (7)

Country	Link
US (1)	US4333724A (de)
AT (1)	AT384903B (de)
AU (1)	AU533232B2 (de)
CH (1)	CH637779A5 (de)
DE (1)	DE3023784C2 (de)
FR (1)	FR2460012A1 (de)
GB (1)	GB2057121B (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4640621A (en) *	1983-06-17	1987-02-03	Eastern Technical Associates, Inc.	Transmissometer and optical elements therefor
JPS61194784A (ja) *	1985-02-23	1986-08-29	Hitachi Ltd	光学的物体検知回路
HU195589B (en) *	1986-09-15	1988-05-30	Peter Hakkel	Portable optical system for protecting field
US4859858A (en) *	1986-12-04	1989-08-22	Cascadia Technology Corporation	Gas analyzers
US4914720A (en) *	1986-12-04	1990-04-03	Cascadia Technology Corporation	Gas analyzers
DE3715507A1 (de) *	1987-05-09	1988-11-17	Berufsgenossenschaft Nahrungsm	Verfahren und vorrichtung zur messung von staubkonzentrationen in gasen oder festpartikelkonzentrationen in fluessigkeiten
GB9905155D0 (en) *	1999-03-06	1999-04-28	Mayer David	Signalling device
DE19940280C2 (de) *	1999-08-26	2001-11-15	Draeger Safety Ag & Co Kgaa	Gassensor mit offener optischer Meßstrecke
US7017408B2 (en) *	2004-02-13	2006-03-28	Be Intellectual Property, Inc.	Electro-optic liquid level sensing system for aircraft beverage brewing
US8102259B2 (en) *	2006-10-17	2012-01-24	Honeywell International Inc.	Fluorescent light immunity through synchronous sampling
US10786948B2 (en)	2014-11-18	2020-09-29	Sigma Labs, Inc.	Multi-sensor quality inference and control for additive manufacturing processes
US10207489B2 (en) *	2015-09-30	2019-02-19	Sigma Labs, Inc.	Systems and methods for additive manufacturing operations

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1082973A (en) *	1964-04-02	1967-09-13	Int Research & Dev Co Ltd	Electrical interrupted-beam alarm systems
CH417405A (de) *	1964-07-14	1966-07-15	Cerberus Ag Werk Fuer Elektron	Vorrichtung zur Feststellung von Aerosolen in Luft
CH424968A (de) *	1965-08-04	1966-11-30	Zellweger Uster Ag	Verfahren und Vorrichtung zur Steuerung von elektrischen Apparaten mit Hilfe von insbesondere tonfrequenten Impulsen, die dem Starkstromnetz überlagert werden
DE2059656A1 (de) *	1970-12-04	1972-06-29	Alfons Endl	Lichtschranke mit einer Schaltung zum Konstanthalten der Schaltwelle
US3846772A (en) *	1972-08-11	1974-11-05	Chubb Fire Security Ltd	Fire detector responsive to amplitude modulation of a pulsed em beam
US3889118A (en) *	1973-06-14	1975-06-10	Rockwell International Corp	Electronic presence sensing device
US3973852A (en) *	1974-08-30	1976-08-10	The Dow Chemical Company	Method and apparatus for measuring particulate concentration in the atmosphere
US3995960A (en) *	1975-07-25	1976-12-07	Nasa	Method and apparatus for background signal reduction in opto-acoustic absorption measurement
US4065759A (en) *	1976-01-07	1977-12-27	Handing Theodore E	Smoke detector
US4126790A (en) *	1976-09-20	1978-11-21	Solomon Elias E	Strobed smoke detector
US4200399A (en) *	1978-11-20	1980-04-29	General Motors Corporation	Resonant optoacoustic spectroscopy apparatus

1980
- 1980-06-19 AU AU59412/80A patent/AU533232B2/en not_active Expired
- 1980-06-20 GB GB8020207A patent/GB2057121B/en not_active Expired
- 1980-06-25 DE DE3023784A patent/DE3023784C2/de not_active Expired
- 1980-06-26 US US06/163,073 patent/US4333724A/en not_active Expired - Lifetime
- 1980-06-26 AT AT0336280A patent/AT384903B/de not_active IP Right Cessation
- 1980-06-27 CH CH494880A patent/CH637779A5/fr not_active IP Right Cessation
- 1980-06-27 FR FR8014404A patent/FR2460012A1/fr active Granted

Also Published As

Publication number	Publication date
FR2460012A1 (fr)	1981-01-16
GB2057121A (en)	1981-03-25
AU533232B2 (en)	1983-11-10
FR2460012B1 (de)	1983-12-16
DE3023784A1 (de)	1981-01-22
DE3023784C2 (de)	1983-09-29
ATA336280A (de)	1987-06-15
CH637779A5 (fr)	1983-08-15
GB2057121B (en)	1983-04-27
US4333724A (en)	1982-06-08
AU5941280A (en)	1981-01-08

Publication	Publication Date	Title
AT378616B (de)	1985-09-10	Photoelektrischer rauchsensor
FI802465A (fi)	1981-02-09	Stoedkonstruktion foer glaspanel
IT1109800B (it)	1985-12-23	Barriera anti-intrusi
AT363172B (de)	1981-07-10	Markhoehlennagel
AT359315B (de)	1980-11-10	Mikrohaertepruefer
GB2034024B (en)	1983-05-05	Photoelectric barrier
TR20825A (tr)	1982-09-16	Feniluereler
SE8001519L (sv)	1980-09-07	Vermestralskydd
DE3045283A1 (de)	1982-11-18	Improved photon detector
DK62182A (da)	1982-02-12	Paelekonstruktion
AT369471B (de)	1983-01-10	Verbandsmauerwerk
AT384903B (de)	1988-01-25	Lichtschranke
PT71061A (pt)	1980-05-01	Leiterplatte mit steckverbinder
TR20812A (tr)	1982-09-15	Feniluereler
BR7905344A (pt)	1980-10-14	Barrica de rolha
SE8000661L (sv)	1980-07-30	Blyror-vermevexlare
AT364180B (de)	1981-09-25	Diaraehmchen
ES252607Y (es)	1981-05-16	Racor
ATA676479A (de)	1983-03-15	Baukonstruktion
FR2455236B1 (fr)	1985-09-27	Elements structurels
FI800594A (fi)	1980-08-29	Balk
KR830000335U (ko)	1983-04-30	광전기 접속 장치
IT1110282B (it)	1985-12-23	Tio-indazoli basici
BR8005354A (pt)	1981-03-10	Composto plastificante
AT376473B (de)	1984-11-26	Kellerlichtschacht

Legal Events

Date	Code	Title	Description
1982-05-15	ELJ	Ceased due to non-payment of the annual fee
2001-02-15	ELJ	Ceased due to non-payment of the annual fee