Patent ID: 9410659
Filing Date: 2016-08-09
CPC Classification: B66C,F16M,G01N,G05D,Y10S

Claim Text:
1. A mobile boom system comprising: a mobile boom base platform; a rotary mast carried by said boom base platform and rotatable relative to said boom base platform about a pan axis; a gimbal comprising a first portion attached to said rotary mast and a second portion rotatable relative to said rotary mast about a tilt axis; a boom arm having first and second ends and an intermediate portion coupled to said gimbal, said boom arm having a hollow center; a tilt angle sensor for detecting a tilt angle of the boom arm; at least one counterweight supported on a portion of said boom arm disposed between said intermediate portion and said first end; a counterweight positioning subsystem for changing a position of said at least one counterweight relative to said gimbal; and a computer system programmed to receive tilt angle data from said tilt angle sensor and send control signals to said counterweight positioning subsystem for controlling the position of the at least one counterweight as a function of at least said tilt angle data.