Patent ID: 9057218
Filing Date: 2015-06-16
Classification: E06B,Y10T

Abstract:
1. A method of fabricating a blast door, the method comprising the steps of: providing a substantially; rectangular panel of a blast-resistant material; providing a frame comprising a first pair of frame members and a second pair of frame members, each frame member being formed of a single extruded element, wherein each of the first pair of frame members includes three cavities extending along the full length of the frame members, one of the cavities being a c-shaped cavity, and wherein each of the second pair of frame members has a cross-section that includes a c-shaped cavity; inserting a pair of opposing perimeter edges of the panel into an opening of each c-shaped cavity of said first frame members such that the first frame members enclose a perimeter potion of the panel on either side thereof; securing said first pair of frame members along the pair of opposing perimeter edges of said panel, the ends of each of said first pair of frame members not extending beyond the panel perimeter corners; inserting the other pair of perimeter edges of the panel into an opening of each c-shaped cavity of said second frame members to enclose a perimeter portion of the panel on either side thereof; securing said second pair of frame members along the other pair of perimeter edges of the panel, said second pair of frame members extending beyond the panel perimeter corners and overlapping the ends of the first frame members; connecting a tie-rail between each of the overlapping ends of one of said second frame members and the overlapping ends of the other of said second frame members, each tie rail extending along one of the three cavities within the cross-section of a respective one of said first frame members; tightening said tie rails so as to pull said opposing second frame members towards each other; and contacting said panel with a base of the cavity of each of said second pair of frame members as said tie-rails are tightened to clamp said second pair of frame members against said panel thereby applying clamping force which secures the panel in the frame.