Abstract: A method of charging a container with a predetermined quantity of a fluent material includes the steps of connecting the container to a bulk supply of the material, applying a vacuum within the container at a predetermined pressure level and for a predetermined period of time determined by an electronic timer to draw a charge of material into the container, the quantity of said charge being determined as a function of said pressure level and said period, and vacuum purging surplus material from the connection between the container and the bulk supply on completion of a filling operation and before commencement of a succeeding filling operation.

Abstract: A plurality of cells are mounted on a cell holder with their liquid crystal filling ports faced downwardly. A support is used having a longitudinal groove in the upper surface and a liquid crystal holding member in the form of helically wound coil or a bundle of inert fibers is placed in the groove. The support and cell holder are placed in a vacuum tank and the filling ports are contacted against the liquid crystal holding member to fill the liquid crystal into the cells while at the same time inert gas is admitted into the vacuum tank to assist filling.

Abstract: A method and apparatus for collecting fluids into flexible containers. The apparatus includes an outer vacuum chamber having a flexible container disposed therein. A split inner chamber is positioned around the flexible container. A bladder means is disposed between the inner chamber and the outer chamber. The bladder means is in communication with the atmosphere so as to cause the bladder means to expand and fill the space between the inner chamber and the outer chamber when the vacuum is applied to the outer chamber.

Abstract: A device which forms a closed compartment for an expandable container to permit a vacuum to be created around the flexible container so as to reduce the pressure inside the container and thereby permit the transfer of fluid materials into the expandable container. The vacuum device is simple in its construction in that it comprises a cover and base member forming a compartment which houses the expandable container and through which a vacuum line is interconnected. In a preferred manner, the cover has a pocket which supports the expandable container and positions it in a slanted manner such that a sealable inlet port is in a raised position as it extends through the cover. The cover member also has means to release the vacuum in the compartment. As a further embodiment, an electrical inlet and outlet are provided in the base which by means of a switch can operate a vacuum pump in conjunction with the opening and closing of the cover.