FR1504449A - Improvements to ventilation devices, such as smoke sensors, noxious gases, and others - Google Patents

Improvements to ventilation devices, such as smoke sensors, noxious gases, and others

Info

Publication number
FR1504449A
FR1504449A FR50242A FR50242A FR1504449A FR 1504449 A FR1504449 A FR 1504449A FR 50242 A FR50242 A FR 50242A FR 50242 A FR50242 A FR 50242A FR 1504449 A FR1504449 A FR 1504449A
Authority
FR
France
Prior art keywords
ventilation devices
noxious gases
smoke sensors
smoke
sensors
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
FR50242A
Other languages
French (fr)
Inventor
Jean Hauville
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 filed Critical
Priority to FR50242A priority Critical patent/FR1504449A/en
Application granted granted Critical
Publication of FR1504449A publication Critical patent/FR1504449A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
FR50242A 1966-02-18 1966-02-18 Improvements to ventilation devices, such as smoke sensors, noxious gases, and others Expired FR1504449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR50242A FR1504449A (en) 1966-02-18 1966-02-18 Improvements to ventilation devices, such as smoke sensors, noxious gases, and others

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR50242A FR1504449A (en) 1966-02-18 1966-02-18 Improvements to ventilation devices, such as smoke sensors, noxious gases, and others

Publications (1)

Publication Number Publication Date
FR1504449A true FR1504449A (en) 1967-12-08

Family

ID=8601767

Family Applications (1)

Application Number Title Priority Date Filing Date
FR50242A Expired FR1504449A (en) 1966-02-18 1966-02-18 Improvements to ventilation devices, such as smoke sensors, noxious gases, and others

Country Status (1)

Country Link
FR (1) FR1504449A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2392733A1 (en) * 1977-06-01 1978-12-29 Plymoth Pp Ab ADJUSTABLE SUCTION UNIT
DE3931142A1 (en) * 1989-02-14 1990-08-16 Wolfgang Von Laufenberg Atmos. pollution redn. e.g. of sprayed oil from metal processing - sucks particles into pivoting hood and through filter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2392733A1 (en) * 1977-06-01 1978-12-29 Plymoth Pp Ab ADJUSTABLE SUCTION UNIT
DE3931142A1 (en) * 1989-02-14 1990-08-16 Wolfgang Von Laufenberg Atmos. pollution redn. e.g. of sprayed oil from metal processing - sucks particles into pivoting hood and through filter

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