SE328226B - - Google Patents

Info

Publication number
SE328226B
SE328226B SE02364/67A SE236467A SE328226B SE 328226 B SE328226 B SE 328226B SE 02364/67 A SE02364/67 A SE 02364/67A SE 236467 A SE236467 A SE 236467A SE 328226 B SE328226 B SE 328226B
Authority
SE
Sweden
Prior art keywords
chamber
voltage
thyristor
feb
ionization
Prior art date
Application number
SE02364/67A
Other languages
English (en)
Inventor
T Lampart
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4236285&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE328226(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Cerberus Ag filed Critical Cerberus Ag
Publication of SE328226B publication Critical patent/SE328226B/xx

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
    • 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)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
SE02364/67A 1966-02-22 1967-02-21 SE328226B (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH254966A CH446131A (de) 1966-02-22 1966-02-22 Ionisationsfeuermelderanlage

Publications (1)

Publication Number Publication Date
SE328226B true SE328226B (xx) 1970-09-07

Family

ID=4236285

Family Applications (1)

Application Number Title Priority Date Filing Date
SE02364/67A SE328226B (xx) 1966-02-22 1967-02-21

Country Status (10)

Country Link
US (1) US3521263A (xx)
AT (1) AT268101B (xx)
BE (1) BE694152A (xx)
CH (1) CH446131A (xx)
DE (1) DE1259227B (xx)
DK (1) DK126607C (xx)
FR (1) FR1511451A (xx)
GB (1) GB1109587A (xx)
NL (1) NL162493C (xx)
SE (1) SE328226B (xx)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO129270B (xx) * 1970-05-16 1974-03-18 Preussag Ag Feuerschutz
US3775616A (en) * 1970-06-08 1973-11-27 Nittan Co Ltd Ionization smoke detector
US3735138A (en) * 1971-10-27 1973-05-22 Honeywell Inc Ionization smoke detector
US3913082A (en) * 1973-02-02 1975-10-14 Jenson Robert S Ionization aerosol detector
US4038649A (en) * 1975-09-16 1977-07-26 Emhart Industries, Inc. Smoke detection alarm device
US4053776A (en) * 1976-05-25 1977-10-11 The United States Of America As Represented By Thesecretary Of The Interior Sub-micron particle detector
US4286160A (en) * 1977-01-27 1981-08-25 Ried Jr Louis Ionization particle detector
CA1148279A (en) * 1979-12-14 1983-06-14 Andreas Scheidweiler Ionization smoke detector with increased operational reliability
US4488044A (en) * 1981-11-20 1984-12-11 Pittway Corporation Ionization chamber for smoke detector and the like
US4755682A (en) * 1986-10-07 1988-07-05 The United States Of America As Represented By The United States Department Of Energy Ionization monitor with improved ultra-high megohm resistor
US4808977A (en) * 1987-08-20 1989-02-28 Hedrick Terry J Electromechanical evacuation exit indicating flag
US5189399A (en) * 1989-02-18 1993-02-23 Hartwig Beyersdorf Method of operating an ionization smoke alarm and ionization smoke alarm

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2145866A (en) * 1929-08-14 1939-02-07 Gioacchino Failla Electrotechnique
BE393134A (xx) * 1932-11-07
NL286979A (xx) * 1962-01-10 1900-01-01
GB1009271A (en) * 1963-03-04 1965-11-10 Associated Fire Alarms Ltd Improvements in or relating to smoke detector circuits

Also Published As

Publication number Publication date
GB1109587A (en) 1968-04-10
NL6701753A (xx) 1967-08-23
DK126607C (da) 1977-06-20
CH446131A (de) 1967-10-31
NL162493B (nl) 1979-12-17
BE694152A (xx) 1967-07-31
US3521263A (en) 1970-07-21
AT268101B (de) 1969-01-27
DK126607B (da) 1973-07-30
NL162493C (nl) 1980-05-16
DE1259227B (de) 1968-01-18
FR1511451A (fr) 1968-01-26

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