Patent ID: 6948490

Claim:
A steam generator device comprising: walls defining a first and a second chamber, said walls including a barrier wall isolating the first chamber from the second chamber, the first chamber holding a first substance and a second substance, wherein the first and second substances are separated by a wall, the first and second substances reacting together when in mutual contact to generate heat and, by means of said heat, steam; the steam generator device having an opening device for forming a first opening through said barrier wall and a second opening through said wall, wherein said opening device is supported and aligned with respect to a use position thereof and comprises a portion for piercing said wall, said portion being supported in said first chamber and being moveable to engage and pierce said wall to said second opening therethrough; whereby the first and second substances come into contact via said second opening; said first and second substances react together to generate heat and, by means of said heat, steam; and the steam flows through said first opening; said steam generating device further comprising a valve for preventing flow of material in a direction opposite to said flow of steam.