DK137099C - - Google Patents

Info

Publication number
DK137099C
DK137099C DK175474A DK175474A DK137099C DK 137099 C DK137099 C DK 137099C DK 175474 A DK175474 A DK 175474A DK 175474 A DK175474 A DK 175474A DK 137099 C DK137099 C DK 137099C
Authority
DK
Denmark
Application number
DK175474A
Other languages
Danish (da)
Other versions
DK137099B (en
Inventor
A Scheidweiler
Original Assignee
Cerberus Ag
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.)
Filing date
Publication date
Application filed by Cerberus Ag filed Critical Cerberus Ag
Publication of DK137099B publication Critical patent/DK137099B/en
Application granted granted Critical
Publication of DK137099C publication Critical patent/DK137099C/da

Links

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
    • G08B17/11—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

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)
  • Fire Alarms (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Alarm Systems (AREA)
DK175474AA 1973-03-30 1974-03-29 Fire alarm device. DK137099B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH462173A CH570016A5 (en) 1973-03-30 1973-03-30

Publications (2)

Publication Number Publication Date
DK137099B DK137099B (en) 1978-01-16
DK137099C true DK137099C (en) 1978-06-12

Family

ID=4279532

Family Applications (1)

Application Number Title Priority Date Filing Date
DK175474AA DK137099B (en) 1973-03-30 1974-03-29 Fire alarm device.

Country Status (17)

Country Link
US (1) US3872449A (en)
JP (1) JPS5619671B2 (en)
AT (1) AT340807B (en)
BE (1) BE812331A (en)
CA (1) CA1063260A (en)
CH (1) CH570016A5 (en)
DE (1) DE2408374B2 (en)
DK (1) DK137099B (en)
ES (1) ES425125A1 (en)
FI (1) FI55420C (en)
FR (1) FR2223766B1 (en)
GB (1) GB1430035A (en)
IT (1) IT1014554B (en)
NL (1) NL7403973A (en)
NO (1) NO136383C (en)
SE (1) SE389569B (en)
ZA (1) ZA741754B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5512635B2 (en) * 1972-07-26 1980-04-03
CH576175A5 (en) * 1974-12-19 1976-05-31 Cerberus Ag
JPS5737265Y2 (en) * 1976-07-07 1982-08-17
US4131888A (en) * 1976-08-18 1978-12-26 American District Telegraph Company Dual projected-beam smoke detector
US4091363A (en) * 1977-01-03 1978-05-23 Pittway Corporation Self-contained fire detector with interconnection circuitry
FR2386874A1 (en) * 1977-04-08 1978-11-03 Gamma Electronic IONIZATION SMOKE DETECTOR ASSOCIATED WITH AN ELECTRONIC VELOCIMETRIC MEASUREMENT CIRCUIT
US4222046A (en) * 1978-07-31 1980-09-09 Honeywell Inc. Abnormal condition responsive means with periodic high sensitivity
US4250500A (en) * 1979-10-22 1981-02-10 Rca Corporation Smoke detector
CA1148279A (en) * 1979-12-14 1983-06-14 Andreas Scheidweiler Ionization smoke detector with increased operational reliability
DE3127324A1 (en) * 1981-07-10 1983-01-27 Siemens AG, 1000 Berlin und 8000 München METHOD AND ARRANGEMENT FOR INCREASING THE SENSITIVITY AND EMERGENCY SAFETY IN A DANGER, IN PARTICULAR FIRE DETECTING SYSTEM
US4539488A (en) * 1981-11-30 1985-09-03 Zenith Electronics Corporation Pulse wave to parabola wave converter
JPS60126798A (en) * 1983-12-13 1985-07-06 ニッタン株式会社 Environmental abnormality detector
US5019805A (en) * 1989-02-03 1991-05-28 Flash-Alert Inc. Smoke detector with strobed visual alarm and remote alarm coupling
US6188318B1 (en) 1999-06-29 2001-02-13 Pittway Corp. Dual-technology intrusion detector with pet immunity
CN102455288B (en) * 2010-10-15 2014-10-15 西门子公司 Apparatus for carrying out calibration on photoelectric signal path of sensor device through online signal level monitoring
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

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735007A (en) * 1956-02-14 Time-base generator
US2811711A (en) * 1951-05-19 1957-10-29 Electronics Corp America Fire method and apparatus
US3582676A (en) * 1968-09-24 1971-06-01 Bendix Corp Pulse length normalizing and short pulse eliminating circuit
US3531692A (en) * 1969-03-03 1970-09-29 Combustion Eng Activity detector having increased accuracy of response
JPS482587U (en) * 1971-05-25 1973-01-12

Also Published As

Publication number Publication date
US3872449A (en) 1975-03-18
BE812331A (en) 1974-07-01
AU6689674A (en) 1975-09-25
DE2408374A1 (en) 1974-10-17
AT340807B (en) 1978-01-10
SE389569B (en) 1976-11-08
DK137099B (en) 1978-01-16
DE2408374B2 (en) 1978-06-01
ZA741754B (en) 1975-01-29
NL7403973A (en) 1974-10-02
CA1063260A (en) 1979-09-25
FR2223766B1 (en) 1978-12-01
FI55420C (en) 1979-07-10
NO741081L (en) 1974-10-01
GB1430035A (en) 1976-03-31
ES425125A1 (en) 1976-06-16
NO136383B (en) 1977-05-16
IT1014554B (en) 1977-04-30
ATA144074A (en) 1977-04-15
FR2223766A1 (en) 1974-10-25
JPS49131099A (en) 1974-12-16
NO136383C (en) 1977-08-31
CH570016A5 (en) 1975-11-28
FI55420B (en) 1979-03-30
JPS5619671B2 (en) 1981-05-08

Similar Documents

Publication Publication Date Title
AR201758A1 (en)
AR201235Q (en)
AR201231Q (en)
FR2223766B1 (en)
AU450229B2 (en)
AR201229Q (en)
AR199451A1 (en)
AR200256A1 (en)
AR197627A1 (en)
AR196382A1 (en)
AR200885A1 (en)
AR195948A1 (en)
AU447540B2 (en)
AR195311A1 (en)
AR210729A1 (en)
AR193950A1 (en)
AU461342B2 (en)
AR201432A1 (en)
AU1891376A (en)
AR196212Q (en)
AR196123Q (en)
BG19732A1 (en)
CH566459A5 (en)
BG18744A1 (en)
CH566905A5 (en)

Legal Events

Date Code Title Description
PBP Patent lapsed