Liquid supply device
AssigneeBaldwin Germany GmbH
InventorKarlheinz Sperber
Life of this patent
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Abstract
A liquid supply device, particularly for gluing machines, coating machines, paper moistening machines and printing machines. It includes an airtight container of collapsible design including at least one collapsible wall. The container collapses corresponding to the quantity of liquid sucked out of it by a suction pump. The collapsible container may be disposed in a rigid container with walls that support the collapsible container walls from folding over.
Claims18
A liquid supply in combination with an offset-printing machine, the combination comprising:
- an offset-printing machine apparatus for treating sheets or a web;
- a supply container for a liquid for teeing the sheets or web, the container being sealed against exposure to air and collapsible, such that the container is easily collapsed by sub-atmospheric pressure in the interior of the container;
- a suction pump having a suction side connectable to the container for sucking liquid out of the container and having a pressure side for delivering a quantity the liquid outside the container and collapsing the container as a result of a suction force from the suction pump, the container collapse corresponding to the quantity of liquid sucked out, said liquid for treating said sheet or web in said offset-printing machine apparatus being delivered to the apparatus without coming into contact with air;
- and
- a tube provided with a connecting means for engaging the liquid supply container and establishing an airtight line connection between liquid in the liquid supply container and the suction pump.
A process for delivering a stored liquid to an offset-printing machine apparatus of an offset-printing plant for treating sheets or a web offset-printed by said offset printing machine, said process comprising the steps of:
- retaining liquid airtight in a collapsible storage container;
- engaging the storage container with a supply tube provided with an air-tight connector so as to establish an airtight line connection to the liquid in the collapsible storage container;
- applying a suction force to the container through the supply tube to suck out the liquid through the supply tube, and to the extent to which the liquid is sucked out, at the same time reducing the volume of the interior of the container by collapse of the container walls;
- delivering the liquid to said offset-printing machine apparatus through a delivery tube without the liquid coming into contact with air;
- and
- treating said sheets or web by applying said liquid in said offset-printing machine apparatus of said offset-printing plant.
Dependencies are inferred from the claim text.