Patent ID: 9027901
Filing Date: 2015-05-12
Classification: F24F,Y10T

Abstract:
1. A vibration absorption system for a rooftop mounted air handling unit comprising: an upper rail for supporting the air handling unit; a lower rail for mounting on the rooftop; at least one biasing device disposed between said upper rail and said lower rail; a fastener having a head and extending through at least a first portion of said upper rail and at least a first portion of said lower rail to interconnect said upper rail and said lower rail; and a restraint stiffener that encircles said fastener and which is clamped to said lower rail with a first nut, wherein said restraint stiffener is positioned such that said first portion of said lower rail is pressed between said head of said fastener and said restraint stiffener and wherein said restraint stiffener is capable of reducing the fastener's bending moment; a second nut releasably engaged with said fastener, said first portion of said upper rail and said first portion of said lower rail disposed between said second nut and said head, said second nut adjustably positionable along a length of said fastener wherein adjustment of said second nut along said length of said fastener varies an extent of compression of said at least one biasing device.