US Patent 10974856 Apparatus for flushing packages with gas

An apparatus for flushing a plurality of randomly spaced packages with an inert gas includes a linear conveyor for conveying the packages, a linear servo motor, comprising a closed loop, positioned generally above the linear conveyor. The arrangement includes a plurality of gas-flushing nozzles which are mounted on the linear servo motor for movement in concert with the packages on the conveyor. Each nozzle can be selectively angularly positioned and articulated with respect to the linear servo motor to facilitate insertion into, and withdrawal from, each package to effect flushing of the contents of each package with an inert gas.