DOOR WITH LOBBY FOR PREVENTING MIXING OF SEVERAL FLOWS Russian patent published in 2004 - IPC

FIELD: building industry, particularly for producing doors with lobbies.

SUBSTANCE: door comprises at least two leafs rotating around central axis and at least three side partitions of circular arc form. Side partitions may rotate around central axis. Side partitions are located opposite to at least one inlet or outlet passages along lobby periphery and have connection means for side partitions connection to door leafs and side partitions detachment from door leafs. Each side partition may be extended or retracted along circular arc trajectory for performing opening or closing operations. Door has vertical walls arranged so that passageways are formed in-between. Side partitions are detachably connected to vertical walls.

EFFECT: prevention of flows mixing, provision of flows crossing in one point without mixing thereof.

7 cl, 11 dwg