Smoke generating device

Abstract

A cold smoke generating device includes an air source that may include a hollow flexible collapsible container having an expandable and compressible cavity for accepting air and air-borne reagent therein. The collapsible container is fluidly connected with a narrow flexible extension that includes an elongated cavity or chamber. Isolated and/or free reagents are disposed within the chamber of the narrow flexible extension. These reagents are capable of reacting with each other, with atmospheric air, or with other gases and fluids to generate a visible aerosol when expelled into the surrounding air.

1 . A smoke generating device for generating smoke to be discharged into air near the device, said device comprising: 
 a collapsible hollow container including a compressible cavity that contains a reduced pressure;    a flexible extension having two ends and a sidewall that defines a chamber, an end of said flexible extension being in fluid connection with the collapsible hollow container, a second end of the flexible extension being sealed; and    at least one ampoule comprising an inert rigid breakable material filled with a reagent capable of generating aerosol when exposed to air and being disposed within said chamber.    
   
   
       2 . The smoke generating device of  claim 1  further comprising at least one porous plug for absorbing a reagent.  
   
   
       3 . The smoke generating device of  claim 1  further comprising an ampoule being breakable upon bending or twisting said flexible extension and said ampoule being fixed in place by at least one porous plug such that said plugs are soaked when said ampoule is broken to enrich air which passes through said plug.  
   
   
       4 . The smoke generating device of  claim 1  further including a gas tight connector disposed between the collapsible container and the flexible extension.  
   
   
       5 . The smoke generating device of  claim 1  wherein said ampoule has longitudinally situated mechanically weakened points that aid in breaking the ampoule.  
   
   
       6 . The smoke generating device of  claim 1  wherein said ampoule is a cylindrical and having one or more places where a diameter is smaller to aid in breaking the ampoule.  
   
   
       7 . The smoke generating device of claim in  1  wherein the ampoule includes surface scratches for aiding in breaking the ampoule.  
   
   
       8 . The smoke generating device of  claim 1  wherein said ampoule has one conical end inserted into a hard tube disposed within said chamber to facilitate breaking of the ampoule.  
   
   
       9 . The smoke generating device of  claim 1  wherein said chamber and said collapsible container are separate pieces assembled together directly before use to allow use of one collapsible container with several consecutive elongated containers.  
   
   
       10 . The smoke generating device of  claim 1  wherein said plug comprises felt.  
   
   
       11 . The smoke generating device of  claim 1  wherein said plug comprises a sintered material.  
   
   
       12 . The smoke generating device of  claim 1  wherein said ampoule comprises a weakened are having one or more selected from a group consisting of a smaller diameter, a notch, a sidewall having a thin region, a prescored sidewall and a scratched surface to aid in breakage of the ampoule.  
   
   
       13 . The smoke generating device of  claim 1  further comprising a removable end cap that seals an end of the chamber.  
   
   
       14 . The smoke generating device of  claim 1  a pair of plugs disposed in a longitudinal direction on an exterior of said ampoule within the chamber.  
   
   
       15 . The smoke generating device of  claim 1  further comprising a hollow rigid material for accepting a tip of the ampoule to aid in breakage of the ampoule.  
   
   
       16 . A smoke generating device for generating smoke to be discharged into air near the device, said device comprising: 
 an external source of air flow;    a flexible extension having two ends and a sidewall that defines a chamber, an end of said flexible extension being in fluid connection with the external source of air, a second end of the flexible extension being sealed; and,    at least one ampoule comprising an inert rigid breakable material filled with a reagent capable of generating aerosol when exposed to air and being disposed within said chamber    
   
   
       17 . The smoke generating device of  claim 16  wherein said source of air flow is an electric driven pump or blower.  
   
   
       18 . The smoke generating device of  claim 16  wherein said source of air flow is a hand operated pump.  
   
   
       19 . The smoke generating device of  claim 16  wherein said source of air flow is a pressurized gas container.  
   
   
       20 . The smoke generating device of  claim 16  wherein said source of air flow is a collapsible hollow container including a compressible cavity that contains a reduced pressure.