FIRE DOOR ASSEMBLY

FIELD: building, particularly devices to protect wall openings in industrial and residential building structures against free flame. ^ SUBSTANCE: fire door assembly comprises door leaf and door frame. Fire-resistant screen is installed over door frame and is located from the first door frame side. F...

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Bibliographische Detailangaben
Hauptverfasser:	TIKHONOV VLADIMIR PETROVICH, AMEL'CHUGOV SERGEJ PETROVICH, KOROTKOV JURIJ ANDREEVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL FIXED CONSTRUCTIONS FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES LADDERS
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Beschreibung
Zusammenfassung:	FIELD: building, particularly devices to protect wall openings in industrial and residential building structures against free flame. ^ SUBSTANCE: fire door assembly comprises door leaf and door frame. Fire-resistant screen is installed over door frame and is located from the first door frame side. Fire-resistant screen is retained in upper position with fixer. The fire-resistant screen is made as a number of pivotally connected fire-resistant plates, which are retained in collapsed upper position with heat-sensitive fixer so that accordion-like structure is created. Fire-resistant plates include metal substrates and hear-reflective surfaces located from outer fire-resistant screen side. The fire-resistant plates are covered with heat-insulation layer from inner sides thereof. ^ EFFECT: increased fire-resistance. ^ 4 dwg