Closure assembly for preventing transmission of interference fields

DETAILED DESCRIPTION According1y, it is an object of the present invention to avoid the above-noted drawbacks associated with doors for electromagnetically-shielded spaces known in the prior art.
It is also an object of the present invention to provide a simple and inexpensive door system which is particularly well-suited for use in connection with heavy and wide door structures.
It is another object of the present invention to provide a door assembly exhibiting excellent performance regarding attenuation of interference fields, and, at the same time, being equivalent in convenience to the use and functioning of a normal door, to the greatest possible extent.
It is a further object of the present invention to provide an assembly having a door which can be rapidly and easily opened without any extra locking and pressing operations which impede the opening of such a door, e.
g.
in the case of emergencies.
It is still another object of the present invention to provide a simple door system having a door, which, when opened, exposes a good and smooth path directly into the electromagnetically-shielded space, without any need to provide various kind of ramp arrangements which would make the overall structure expensive and difficult to manage.
These and other objects are provided by the present invention which is directed to an assembly including a closure such as a door situated with respect to a fixed structure for preventing transmission of interference fields such as high-frequency electromagnetic fields between the closure and fixed structure.
The closure is disposed to be movable with respect to the structure and at least one of the closure and the fixed structure is provided with means for establishing contact between the closure and structure for preventing transmission of interference fields between the two.
In particular, the closure assembly comprises a fixed structure defining an opening adapted to be closed by a closure, with a closure having a surface defining a plane being mounted to the fixed structure