Patent ID: 9140055
Filing Date: 2015-09-22
Classification: E05F,E06B

Abstract:
1. A door system capable of providing RF shielding, said door system comprising: a door jamb defining an opening; two bi-folding door leaves, wherein each bi-folding door leaf is comprised of: a seal system, comprising a combination of vertically extending finger stock and an opposing vertically extending compression strip, wherein the seal system is within each of the first and second vertically disposed hinge joints and wherein a leading edge of one second leaf section has vertically extending finger stock and the other second leaf section has a vertically extending compression strip so as to form a seal system between the second leaf sections; and two rotating armatures, wherein each rotating armature is in communication with the second leaf section of each of the bi-folding door leaves, wherein the armatures rotate towards each other to put the door system in the closed position and away from each other to put the door system in the open position, wherein the door leaves are substantially flat across the opening when in the closed position, and wherein the door leaves are folded along the second vertically disposed hinged joints and the leaf sections are stacked outside the opening when in the open position.