Fluid delivery system

Abstract

A fluid delivery system for degrading valuable items in the event on an attack is provided. A piston 30 is disposed within a cylinder 2 . On demand gas under pressure can be admitted into the cylinder 2 so as to urge the piston to move towards an outlet 8 , thereby expelling fluid 4 irrespective of the orientation of the delivery system.

What is claimed is:  
     
         1 . A fluid delivery system comprising: 
 a first cylinder having an outlet and containing fluid;    a piston in substantially fluid sealed sliding arrangement within the cylinder; and    supply means for the selective supply of gas under pressure into the first cylinder so that the piston is urged towards the outlet and the fluid is ejected from the outlet.    
     
     
         2 . A fluid delivery system as claimed in  claim 1 , wherein the cylinder has an inlet and the means for the selective supply of gas under pressure to the inlet comprises a pressurized gas reservoir and electronically activated means for opening the reservoir.  
     
     
         3 . A fluid delivery system as claimed in  claim 2 , wherein the pressurized gas reservoir contains pressurized carbon dioxide gas.  
     
     
         4 . A fluid delivery system as claimed in  claim 1 , wherein the outlet is connected to a spray bar.  
     
     
         5 . A fluid delivery system as claimed in  claim 1 , further comprising a burst disc in a fluid delivery path following the outlet of the first cylinder.  
     
     
         6 . A fluid delivery system as claimed in  claim 1 , further comprising a second cylinder containing fluid and having an inlet and an outlet, a second piston in substantially fluid sealed sliding engagement therein, and means for the selective supply of gas to the inlet of the second cylinder, wherein gas under pressure is introduced at the inlet, so that the piston is urged towards the outlet and the fluid is ejected from the outlet.  
     
     
         7 . A fluid delivery system as claimed in  claim 6 , wherein the first and second cylinders share common means for the selective supply of gas.  
     
     
         8 . A fluid delivery system as claimed in  claim 6 , wherein a common fluid delivery path follows the outlet of the first and second cylinders.  
     
     
         9 . A fluid delivery system as claimed in  claim 6 , wherein the first and second cylinders contain different fluids.  
     
     
         10 . A fluid delivery system as claimed in  claim 6 , further comprising at least two relatively moveable sections, wherein the contents of a cylinder can be accessed by moving at least one of the sections relative to the other sections.  
     
     
         11 . A fluid delivery system as claimed in  claim 10 , wherein the fluid in a cylinder is further contained within a removable fluid container.  
     
     
         12 . A fluid delivery system as claimed in  claim 11 , wherein the piston contained within a cylinder is further contained within the removable fluid container.  
     
     
         13 . A media protection system comprising: 
 a media container; and    a fluid delivery system comprising (i) a cylinder having an outlet and containing fluid, (ii) a piston in substantially fluid sealed sliding arrangement within the cylinder, and (iii) supply means for the selective supply of gas under pressure into the cylinder so that the piston is urged towards the outlet and the fluid is ejected from the outlet.    
     
     
         14 . A media protection system as claimed in  claim 13 , wherein the media container includes a cash cassette.