Dispensing vessel having a corrugated secondary container for use in a printing apparatus for depositing a liquid composition on a backplane

Abstract

A dispensing vessel for a liquid replenishment system includes therewithin a secondary container fabricated of a material that is impervious to a driving fluid contained within the interior chamber of the dispensing vessel. The secondary container has a pleated body forming a collapsible bellows configuration with a freely movable end formed of a rigid planar base. The secondary container is attached to the lid of the dispensing vessel such that the interior of the secondary container is in fluid communication with an inlet port and an outlet port formed in the lid of the dispensing vessel.

What is claimed is: 
     
         1 . A dispensing vessel for holding a supply of a liquid composition containing an organic semiconductor material for deposit onto a surface, the dispensing vessel having:
 a outer can and corresponding lid, the lid being conjoinable to the outer can in an air-tight manner, when conjoined the outer can and lid cooperating to define an enclosed chamber, the lid having an exterior surface and an interior surface presented toward the chamber, the lid having a replenishment liquid inlet port and a liquid supply outlet port being formed therethrough, and   a collapsible secondary container for receiving a liquid composition, the secondary container being disposed within the dispensing vessel, the secondary container having a fixed end and a freely movable end,   in use, the interior chamber having a pressurized driving fluid therein, the pressurized driving fluid being able to collapse the secondary container to force a liquid composition therefrom;   
       wherein the dispensing vessel is improved in that:
 the collapsible secondary container is fabricated of a material that is impervious to a driving fluid contained within the interior chamber of the dispensing vessel; and wherein 
 the secondary container is attached to the interior surface of the lid such that the fixed end of the secondary container surrounds the inlet and the outlet ports in the lid, whereby the interior of the secondary container is in fluid communication with both the replenishment liquid inlet port and the liquid supply outlet port. 
 
     
     
         2 . The dispensing vessel of  claim 1  wherein the secondary container has a pleated body that imparts a collapsible bellows configuration to the secondary container. 
     
     
         3 . The dispensing vessel of  claim 2  wherein the movable end of the secondary container has a rigid base responsive to a force imposed thereon by a driving fluid to collapse the bellows and to urge a liquid composition present in the secondary container toward the outlet port in the lid. 
     
     
         4 . The dispensing vessel of  claim 3  wherein the base of the secondary container is planar. 
     
     
         5 . The dispensing vessel of  claim 4  wherein the base of the secondary container is fabricated from stainless steel. 
     
     
         6 . The dispensing vessel of  claim 2  wherein the body of the secondary container is fabricated from stainless steel. 
     
     
         7 . The dispensing vessel of  claim 1  wherein the secondary container is fabricated from stainless steel. 
     
     
         8 . The dispensing vessel of  claim 1  wherein the outer can has a bottom, the bottom having a transparent window therein.