Abstract A seismic motion-damper comprising an inertia element disposed within a container containing a fluid-liquid is attached to an upper portion of upstanding electrical equipment, and said damper is tuned so as, by utilizing sympathetic vibrations, tends to cancel out seismic vibrations, which otherwise could damage the electrical equipment. The damping device includes an inertia element disposed within a surrounding container, the latter containing a liquid which serves to damp vibrating motion of the container by the liquid movement within the container caused by relative motion between the inertia element and the surrounding container. If desired, one or more damping cylinders may be additionally provided within the container to assist in damping the seismic vibrations.
In combination, upstanding electrical equipment and a tuned damping device affixed adjacent a high point of said upstanding electrical equipment, whereby sympathetic vibrations will tend to cancel out damaging vibrations, said damping device comprising a container having a liquid-fluid disposed therein, an inertia element disposed within said container, and a helicallyconfigured damping element provided interiorly within said container having one end thereof affixed to the internallydisposed inertia element and its other end affixed to the outer container.
Claim 2
Dependent Claim
77 words
In combination, upstanding electrical equipment and a tuned damping device affixed adjacent a high point of said upstanding electrical equipment, whereby sympathetic vibrations will tend to cancel out damaging vibrations, said damping device comprising a container having a liquid-fluid disposed therein, an inertia element disposed within said container, and a helicallyconfigured damping element provided interiorly within said container having one end thereof affixed to the internallydisposed inertia element and its other end affixed to the outer container.