Patent ID: 8176682
Filing Date: 2012-05-15
Classification: E06B

Abstract:
1. A door assembly comprising: two door panels in parallel orientation only joined together by door panel bushings and door panel pins, wherein the door panel bushings are disposed in a first door panel and a second door panel of the two door panels, wherein the door panel pins connect the door panel bushings positioned adjacent thereto, wherein the door panel bushings disposed in the first door panel dampen energy from the first door panel prior to transmission of energy through the door panel pins to the door panel bushings in the second door panel for further damping of energy prior to transmission of energy into the second door panel, wherein the door panel bushings and door panel pins allow independent relative motion of the two door panels to reduce energy transmission therebetween, wherein the two door panels are not enclosed within an outer shell; two frames in parallel orientation only joined together by frame bushings and frame pins, wherein the frame bushings are disposed in a first frame and a second frame of the two frames, wherein the frame pins connect the frame bushings positioned adjacent thereto, wherein the frame bushings disposed in the first frame dampen energy from the first frame prior to transmission of energy through the frame pins to the frame bushings in the second frame for further damping of energy prior to transmission of energy into the second frame, wherein the frame bushings and frame pins allow independent relative motion of the two frames to reduce energy transmission there between; and a plurality of hinges operably connecting the two door panels and one frame of the two frames.