Patent ID: 7530555

Claim:
A damping assembly consisting essentially of: a supporting base having an arcuate top face; a first stainless steel layer placed on top of the supporting base and having an arcuate slippery top face mating to the arcuate top face of the supporting base; a polytetrafluoroethylene layer movably seated on top of the arcuate slippery top face of the first stainless steel layer; a supporting stainless steel layer placed on top of the polytetrafluoroethylene layer to force the polytetrafluoroethylene layer to completely engage with the arcuate slippery top face of the first stainless steel layer; a rubber pad provided on top of the supporting stainless steel layer providing necessary resilience; a confinement mounted on top of the rubber pad to enclose the rubber pad so as to confine the rubber pad when experiencing a load on the rubber pad; and a top supporting plate placed on top of the confinement for firm attachment to a bottom face of a main construction such that movement of the polytetrafluoroethylene layer offsets a shaking force and the resilience of the rubber pad provides balance to the top supporting plate and absorbs vertical vibration force to protect the main construction from damage of an earthquake.