Patent ID: 7104008
Filing Date: 2006-09-12
Classification: E05F,E05Y,E06B

Abstract:
1. A door system comprising: a compartment formed with a first wall defined by a first pair of substantially parallel, coplanar panels spaced from one another so that opposed edges of the panels in the first pair of panels define a first gateway and a second wall defined by a second pair of substantially parallel, coplanar panels spaced from one another so that opposed edges of the panels in the second pair of panels define a second gateway opposed to the first gateway and internal surfaces of the compartment defining a generally polygonal shape in plan view; and a barrier apparatus which is housed in the compartment, the barrier apparatus including: a driving mechanism which operatively swings the swivel panel back and forth between the first and second positions, wherein each of the door panels has an arc shape in plan view, and wherein each of the first and second door panels maintains substantial air-tight sealing contact with at least one of the edges of a respective one of the first and second gateways in all swinging positions of the swivel panel.