Patent ID: 9139409
Filing Date: 2015-09-22
Classification: B66F

Abstract:
1. A boom assembly, comprising: a lower boom including an intermediate member end and a base end configured to be pivotally coupled to a lift device, the lower boom further including a boom base portion that comprises a tubular section positioned to carry structural loading and a boom weighted portion positioned to provide counterweight for the lift device, wherein the boom weighted portion is asymmetrically distributed along the length of the lower boom and biased toward the intermediate member end of the lower boom; an intermediate member pivotally coupled to an end of the tubular section with a bracket; an upper boom having a first end pivotally coupled to the intermediate member; an intermediate link coupled directly between the upper boom and the lower boom; and an actuator coupled between the intermediate member and the upper boom; wherein the intermediate member includes a base portion including a pair of sidewalls positioned to carry structural loading and a weighted portion positioned to provide counterweight for the lift device, wherein the weighted portion of the intermediate member includes a discrete boss comprising at least one of a disk, a rib, and a ridge.