CH511494A - Control device for automatically closing fire doors - Google Patents

Control device for automatically closing fire doors

Info

Publication number
CH511494A
CH511494A CH4270A CH4270A CH511494A CH 511494 A CH511494 A CH 511494A CH 4270 A CH4270 A CH 4270A CH 4270 A CH4270 A CH 4270A CH 511494 A CH511494 A CH 511494A
Authority
CH
Switzerland
Prior art keywords
control device
automatically closing
fire doors
closing fire
doors
Prior art date
Application number
CH4270A
Other languages
German (de)
Inventor
Siepmann Bernd-Josef
Original Assignee
Siemens 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 Siemens Ag filed Critical Siemens Ag
Publication of CH511494A publication Critical patent/CH511494A/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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 Alarms (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Alarm Systems (AREA)
CH4270A 1969-01-08 1970-01-06 Control device for automatically closing fire doors CH511494A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691900771 DE1900771C3 (en) 1969-01-08 1969-01-08 Circuit arrangement for an automatically closing fire door

Publications (1)

Publication Number Publication Date
CH511494A true CH511494A (en) 1971-08-15

Family

ID=5721953

Family Applications (1)

Application Number Title Priority Date Filing Date
CH4270A CH511494A (en) 1969-01-08 1970-01-06 Control device for automatically closing fire doors

Country Status (3)

Country Link
CH (1) CH511494A (en)
DE (1) DE1900771C3 (en)
GB (1) GB1281121A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016210777B3 (en) * 2016-06-16 2017-08-31 Geze Gmbh door drive
CN108131074A (en) * 2017-12-28 2018-06-08 无锡蓝天电子股份有限公司 A kind of fire resistant doorsets monitor of the urgent input interface of band

Also Published As

Publication number Publication date
DE1900771C3 (en) 1979-04-26
DE1900771B2 (en) 1978-08-31
DE1900771A1 (en) 1970-08-27
GB1281121A (en) 1972-07-12

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Legal Events

Date Code Title Description
PL Patent ceased