Patent ID: 7909070

Claim:
A filling device configured for filling a cylindrical aerosol container ( 1 ) with a liquid, or paint, the filling device comprising: a disposable single use cup ( 3 ) including a filling opening at a top of the cup, an injection opening ( 4 ) at a bottom of the cup, the injection opening ( 4 ) being adapted to a valve ( 2 ) of the aerosol container ( 1 ), and an immobilizing element around an interior of the filling opening; and a disposable single use cylindrical piston head ( 7 ), the piston head ( 7 ) being fitted to and detachable from a cylindrical pusher element ( 12 ), the piston head ( 7 ) including a scraper configured to be in continuous contact with an inside wall of the cup ( 3 ) during a transfer operation, and an interlock on an end of the pusher element, wherein after a filling operation to fill the aerosol container, the piston head ( 7 ) is seated and kept adjacent to the bottom of the cup to seal the bottom of the cup such that the piston head and the cup can be turned upside down and secured to the aerosol container to form a cap for the aerosol container, the cap being cylindrical and having a generally flat top, and the bottom of the cup being the top of the cap.