Abstract: Nested piston apparatus is disclosed for making free pistons used to provide multi-chamber mixing and sequential delivery syringes within conventional syringe barrels. Each such syringe comprising one or more free pistons made according to the instant invention whereby syringe contents are selectively kept disparate until acted upon by forced displacement of an associated plunger rod. As well, nested piston apparatus is disclosed for using nested piston apparatus as multiple free pistons for making triple chamber syringes.
Abstract: Method and apparatus are disclosed for capping a plurality of bottles enclosed and sealed in a plastic bag. The method comprises disposing the plurality of bottles in a tray in a predetermined array such that caps, disposed in a plate can be displaced for convenient capping in a single step. Ratchet tools are disclosed for facile threading of caps to bottles.