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DE3340860A1
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Fitting for roof openings of buildings
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DE3238408A1
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Device for ventilating buildings
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DE3141268A1
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Aerating device for buildings
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DE3138642A1
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RAIN SENSOR
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DE3127236A1
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Ventilation and heating arrangement
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DE3012345A1
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Pressure operated ram with intermediate positions - has piston rod with notches engaged by locking mechanism on cylinder
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DE2952767A1
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VENTILATION DEVICE FOR BUILDING
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DE2931942A1
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Rotary regenerative heat exchanger - has rotor with circular disc surfaces parallel to flow directions of media
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DE2842727A1
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DEVICE FOR THE CONTROLLED DELIVERY OF AIR INTO VENTILATION AND / OR AIR CONDITIONING
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DE2834267A1
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Sound absorber esp. for ventilation ducts - uses sound-absorbing elements in case slidable in slots in opposite walls, and in parallel to each other
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DE2822936A1
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Ventilator arrangement for building roofs - has zigzag inclined plates for waste air and gutters for rain water
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DE2722131A1
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VENTILATION DEVICE FOR BUILDINGS, IN PARTICULAR FIRE FANS
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DE2708774A1
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Natural draught ventilator for horizontal factory roof - has vertical V-shaped louvres with rain gutters on each limb
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DE2652838A1
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Roof ventilating opening and grid - has rectangular grid matching opening and projecting above it, inside upper surround
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DE2637470A1
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Roof ventilator emergency operating system - has actuator cylinders changed over from air to water operation in event of fire
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DE2635248A1
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DEVICE FOR OPENING AND CLOSING A VENTILATION FLAP OF FIRE FANS
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DE2625575A1
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Natural draught ventilator for horizontal factory roof - has vertical V-shaped louvres with rain gutters on each limb
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DE2609669A1
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Buildings ventilation unit with air channel - has crosswalls to form air diverting layout with slit half channel width to deflect air stream
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CH591609A5
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Fire fume vent for factory roofs - has vent plate opened by torsion rod spring when catch is released at free end
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