NL7313897A - GAS INDICATOR. - Google Patents

GAS INDICATOR.

Info

Publication number: NL7313897A
Authority: NL; Netherlands
Prior art keywords: gas indicator; indicator; gas
Prior art date: 1973-10-10

Application number

NL7313897A

Other languages

Dutch (nl)

Original Assignee

Visser Robertus Gerardus

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.)

1973-10-10

Filing date

1973-10-10

Publication date

1975-04-14

1973-10-10 Application filed by Visser Robertus Gerardus filed Critical Visser Robertus Gerardus

1973-10-10 Priority to NL7313897A priority Critical patent/NL7313897A/en

1973-11-30 Priority to BE138387A priority patent/BE808064A/en

1974-01-19 Priority to DE2402493A priority patent/DE2402493A1/en

1974-01-28 Priority to US437351A priority patent/US3895367A/en

1974-01-31 Priority to JP49012299A priority patent/JPS5067197A/ja

1974-01-31 Priority to FR7403229A priority patent/FR2247773B1/fr

1975-04-14 Publication of NL7313897A publication Critical patent/NL7313897A/en

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
- G08B17/117—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means by using a detection device for specific gases, e.g. combustion products, produced by the fire
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
- G01N27/122—Circuits particularly adapted therefor, e.g. linearising circuits

Landscapes

Chemical & Material Sciences (AREA)
Physics & Mathematics (AREA)
Analytical Chemistry (AREA)
General Physics & Mathematics (AREA)
Health & Medical Sciences (AREA)
Emergency Management (AREA)
Chemical Kinetics & Catalysis (AREA)
Electrochemistry (AREA)
Business, Economics & Management (AREA)
Life Sciences & Earth Sciences (AREA)
Biochemistry (AREA)
General Health & Medical Sciences (AREA)
Immunology (AREA)
Pathology (AREA)
Emergency Alarm Devices (AREA)
Fire-Detection Mechanisms (AREA)
Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)

NL7313897A 1973-10-10 1973-10-10 GAS INDICATOR. NL7313897A (en)

Priority Applications (6)

Application Number	Priority Date	Filing Date	Title
NL7313897A NL7313897A (en)	1973-10-10	1973-10-10	GAS INDICATOR.
BE138387A BE808064A (en)	1973-10-10	1973-11-30	GAS INDICATOR
DE2402493A DE2402493A1 (en)	1973-10-10	1974-01-19	GAS INDICATOR
US437351A US3895367A (en)	1973-10-10	1974-01-28	Gas indicator with semiconductive gas sensor
JP49012299A JPS5067197A (en)	1973-10-10	1974-01-31
FR7403229A FR2247773B1 (en)	1973-10-10	1974-01-31

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL7313897A NL7313897A (en)	1973-10-10	1973-10-10	GAS INDICATOR.

Publications (1)

Publication Number	Publication Date
NL7313897A true NL7313897A (en)	1975-04-14

Family

ID=19819783

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL7313897A NL7313897A (en)	1973-10-10	1973-10-10	GAS INDICATOR.

Country Status (6)

Country	Link
US (1)	US3895367A (en)
JP (1)	JPS5067197A (en)
BE (1)	BE808064A (en)
DE (1)	DE2402493A1 (en)
FR (1)	FR2247773B1 (en)
NL (1)	NL7313897A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CH598601A5 (en) *	1975-07-10	1978-05-12	Richard Hunziker
US4007456A (en) *	1975-12-01	1977-02-08	Craftor Inc.	Gas detecting and warning system
US4065759A (en) *	1976-01-07	1977-12-27	Handing Theodore E	Smoke detector
DE2709487A1 (en) *	1976-03-17	1977-09-22	Nohmi Bosai Kogyo Co Ltd	FIRE ALARM
US4088986A (en) *	1976-10-01	1978-05-09	Boucher Charles E	Smoke, fire and gas alarm with remote sensing, back-up emergency power, and system self monitoring
US4096473A (en) *	1976-12-09	1978-06-20	P.R. Mallory & Co. Inc.	High output smoke and heat detector alarm system utilizing a piezoelectric transducer and a voltage doubling means
GB1557921A (en) *	1977-01-10	1979-12-19	British Steel Corp	Gas monitors
USRE30620E (en) *	1978-07-03	1981-05-19	P. R. Mallory & Co. Inc.	High output smoke and heat detector alarm system utilizing a piezoelectric transducer and a voltage doubling means
FR2431124A1 (en) *	1978-07-11	1980-02-08	Silvy Bruno	Breathalyser determining alcohol in motorists body - has stabilised electrical power supply and gas detecting resistor
US4225860A (en) *	1979-01-15	1980-09-30	Pittway Corporation	Sensitivity controlled dual input fire detector
JPS55166163A (en) *	1979-06-13	1980-12-25	Citizen Watch Co Ltd	Controller for anesthetic gas
US4335379A (en) *	1979-09-13	1982-06-15	Martin John R	Method and system for providing an audible alarm responsive to sensed conditions
IT212760Z2 (en) *	1985-02-13	1989-09-20	Salutati Giovanni Pistolozzi M	'PROTECTOR-GAS' PROTECTION SYSTEM AGAINST GAS LEAKS
DE102014019172B4 (en)	2014-12-17	2023-12-07	Elmos Semiconductor Se	Device and method for distinguishing between solid objects, cooking fumes and smoke using a compensating optical measuring system
DE102014019773B4 (en)	2014-12-17	2023-12-07	Elmos Semiconductor Se	Device and method for distinguishing between solid objects, cooking fumes and smoke using the display of a mobile telephone
CN110164066A (en) *	2017-12-29	2019-08-23	郑州天舜电子技术有限公司	A kind of Security alert indicator light

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3733595A (en) *	1971-02-12	1973-05-15	E Benedict	Condition responsive switching circuit
JPS5320668Y2 (en) *	1972-06-07	1978-05-31

1973
- 1973-10-10 NL NL7313897A patent/NL7313897A/en unknown
- 1973-11-30 BE BE138387A patent/BE808064A/en unknown
1974
- 1974-01-19 DE DE2402493A patent/DE2402493A1/en active Pending
- 1974-01-28 US US437351A patent/US3895367A/en not_active Expired - Lifetime
- 1974-01-31 JP JP49012299A patent/JPS5067197A/ja active Pending
- 1974-01-31 FR FR7403229A patent/FR2247773B1/fr not_active Expired

Also Published As

Publication number	Publication date
DE2402493A1 (en)	1975-04-30
BE808064A (en)	1974-03-15
FR2247773B1 (en)	1977-09-16
FR2247773A1 (en)	1975-05-09
JPS5067197A (en)	1975-06-05
US3895367A (en)	1975-07-15

Publication	Publication Date	Title
NL7500695A (en)	1975-07-23	INDICATOR SYSTEM.
DK133480B (en)	1976-05-24	Underroft.
NL7313897A (en)	1975-04-14	GAS INDICATOR.
BE815933A (en)	1974-12-05	INDICATOR
NO141148C (en)	1980-01-23	RYSTESAALD.
NL7410348A (en)	1975-02-06	INDICATION DEVICE.
NL7413308A (en)	1975-04-22	SCALE.
NL180925B (en)	1986-12-16	LASBEK.
NL7415922A (en)	1975-06-10	INDICATION SYSTEM.
NL7411892A (en)	1975-03-10	LASEROSCILLATOR WITH GAS FLUX.
CH548595A (en)	1974-04-30	MANOMETER.
NL7414991A (en)	1975-05-21	ZIPPER-CARRIER.
NO741919L (en)	1974-11-29	Peleskjøt.
NL7509193A (en)	1976-02-04	INDICATOR.
NL7415134A (en)	1975-05-22	LEVEL MEASUREMENT.
NO143087C (en)	1980-12-17	TOERRKLOSETT.
NL7414767A (en)	1975-03-27	ELECTROSTATOGRAPHY.
NL164806C (en)	1983-07-18	RAILWHEEL.
NL7405904A (en)	1975-03-10	INDICATOR.
NL7414802A (en)	1975-05-21	SPINKAN CHANGE.
NL169361C (en)	1982-07-01	GAS SWITCH.
NL7416975A (en)	1975-07-01	INDICATOR.
NL7413490A (en)	1975-04-17	INDICATION SYSTEM.
NL7413062A (en)	1975-09-30	INDICATOR.
ES192929Y (en)	1975-01-16	INDICATOR DEVICE.