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VALVE DEVICE

  • US 20100078584A1
  • Filed: 06/26/2006
  • Published: 04/01/2010
  • Est. Priority Date: 06/30/2005
  • Status: Active Grant
First Claim
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1. Valve device comprising a substrate and an elastic membrane, the membrane being joined at least around a valve area to the substrate, the substrate comprising a first channel and a second channel, both ending in the valve area, the first channel having in the valve area a first channel end surface and the second channel having in the valve area a second channel end surface, wherein the area of the first channel end surface is substantially larger than the area of the second channel end surface.

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