US Patent 10322920 Scissor-boom lift

A scissor boom system including a scissor boom assembly having a telescopic boom section including a base-boom, a middle-boom, and a top-boom, a scissor links assembly, a chassis, and a power hoist. The chassis supports the power hoist, the power moves the telescopic boom section and the scissor links assembly between raised and lowered conditions when manipulated. The scissor boom assembly provides a stable work platform for workers. The telescopic boom section provides for horizontal-movement of a work platform, and the scissor links assembly is thus able to provide vertical-movement of the work platform, as desired.