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FR721147A - Vacuum cleaner for ventilation or smoke ducts - Google Patents

Vacuum cleaner for ventilation or smoke ducts

Info

Publication number
FR721147A
FR721147A FR721147DA FR721147A FR 721147 A FR721147 A FR 721147A FR 721147D A FR721147D A FR 721147DA FR 721147 A FR721147 A FR 721147A
Authority
FR
France
Prior art keywords
ventilation
vacuum cleaner
smoke ducts
ducts
smoke
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
Other languages
French (fr)
Inventor
Albert Cauchemont
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
Application granted granted Critical
Publication of FR721147A publication Critical patent/FR721147A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
FR721147D 1931-08-07 1931-08-07 Vacuum cleaner for ventilation or smoke ducts Expired FR721147A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR721147T 1931-08-07

Publications (1)

Publication Number Publication Date
FR721147A true FR721147A (en) 1932-02-29

Family

ID=9096153

Family Applications (1)

Application Number Title Priority Date Filing Date
FR721147D Expired FR721147A (en) 1931-08-07 1931-08-07 Vacuum cleaner for ventilation or smoke ducts

Country Status (1)

Country Link
FR (1) FR721147A (en)

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