Patent ID: 9521753
Filing Date: 2016-12-13
CPC Classification: B65B,F16F,G06F,H02G,H05K

Claim Text:
1. A vibration damping circuit card assembly, comprising: a populated circuit card having a mass M; a closed metal container coupled to a surface of said populated circuit card at a region of said populated circuit card that includes a geometric center of said populated circuit card, said closed metal container including a base having a planar surface bonded to said surface of said populated circuit card, said base having a continuous ridge extending away therefrom wherein an annular flange is defined adjacent said continuous ridge, a housing having an open end that is in sliding engagement with said continuous ridge, said housing having a continuous flange defined about said open end for engagement with said annular flange, and an adhesive disposed between said open end of said housing and said continuous ridge, said adhesive also disposed between said continuous flange and said annular flange; and tungsten balls filling approximately 90% of said metal container, wherein a mass of said tungsten balls is approximately (0.07)M.