Patent ID: 7448412
Filing Date: 2008-11-11
Classification: F15C,F16K,G05D,Y10T

Abstract:
1. A valve comprising: a substrate having first and second opposing faces, a hole through the substrate between the first and second faces, and a pair of input pads thereon; a movable valve member on the substrate with the movable valve member being associated with the hole in the substrate, wherein the movable valve member is configured to open or substantially block the hole responsive to an electrical signal applied to the pair of input pads; a frame surrounding and supporting the substrate at edges thereof so that central portions of the first and second faces of the substrate are exposed through an opening in the frame and so that a fluid seal is provided between the frame and edges of the substrate; and a baffle on the frame and spaced apart from the substrate, the baffle having at least one opening therethrough, wherein the baffle and the substrate define a baffle chamber therebetween and wherein the opening through the baffle defines a width that is less than a width of the baffle chamber in a direction parallel with respect to a surface of the substrate.