US Patent 12071300 Refuse packer system with helical band actuators

A refuse collection vehicle includes a body having a storage compartment and a packer system. The storage compartment includes a floor. The packer system includes an ejector, two or more helical band actuators, and a driver. The helical band actuators each include a drive cylinder base, a helical band drive cylinder, and a drive cylinder receptacle coupled between the helical band drive cylinder and the ejector. The driver is commonly coupled to the helical band actuators and operable to extend and retract the helical band drive cylinders. The helical band actuators are operable to advance the ejector such that refuse is compacted in the storage compartment or ejected from the storage compartment.