Patent ID: 9593828
Date: 2017-03-14
CPC Classifications: F16F,F21V

Claim:
1. An apparatus for damping vibration of a pole, the apparatus comprising: a housing; a horizontal surface within the housing; wherein the horizontal surface further comprises: a first dampening weight, wherein the first dampening weight is located within the first enclosed concave area; further wherein the first dampening weight is comprised of a spherical mass which is configured to freely roll within the first enclosed concave area; a second dampening weight, wherein the second dampening weight is located within the second enclosed concave area; further wherein the second dampening weight is comprised of a spherical mass which is configured to freely roll within the second enclosed concave area; a third dampening weight, wherein the third dampening weight is located within the third enclosed concave area; further wherein the third dampening weight is comprised of a spherical mass which is configured to freely roll within the third enclosed concave area; and a lid, wherein the lid is above the horizontal surface; further wherein the lid is configured to seal the first dampening weight within the first enclosed concave area; further wherein the lid is configured to seal the second dampening weight within the second enclosed concave area; further wherein the lid is configured to seal the third dampening weight within the third enclosed concave area; wherein the apparatus is configured to be mounted to a top end of the pole for damping wind-induced first mode vibration of the pole.