FR70963E - Sealed shut-off shutter, especially for ventilation ducts - Google Patents

Sealed shut-off shutter, especially for ventilation ducts

Info

Publication number
FR70963E
FR70963E FR70963DA FR70963E FR 70963 E FR70963 E FR 70963E FR 70963D A FR70963D A FR 70963DA FR 70963 E FR70963 E FR 70963E
Authority
FR
France
Prior art keywords
shutter
ventilation ducts
sealed shut
shut
sealed
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
Louis Julien
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 FR70963E publication Critical patent/FR70963E/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
FR70963D 1957-01-23 1957-01-23 Sealed shut-off shutter, especially for ventilation ducts Expired FR70963E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR70963T 1957-01-23

Publications (1)

Publication Number Publication Date
FR70963E true FR70963E (en) 1959-09-30

Family

ID=8702588

Family Applications (1)

Application Number Title Priority Date Filing Date
FR70963D Expired FR70963E (en) 1957-01-23 1957-01-23 Sealed shut-off shutter, especially for ventilation ducts

Country Status (1)

Country Link
FR (1) FR70963E (en)

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