Patent ID: 6619563
Filing Date: 2003-09-16
Classification: B05B

Abstract:
A manifold block housing a plurality of paired inlet channels and outlet channels formed in the block housing and a single applicator channel in microvalved connection with each respective pair of said inlet channels and said outlet channels, each said inlet channel meeting its paired outlet channel at a common intersection of said channels located within a valve chamber of a respective microvalve with said applicator channel in adjacent proximity to said microvalve, wherein, when a microvalve is triggered to the â€œopenâ€  position, the liquid flows through said proximate inlet channel, to and through the applicator channel, with a portion thereof flowing to and through said paired outlet channel and, when said microvalve is triggered to the â€œclosedâ€  position, the liquid flows to and through the proximate inlet channel, and recirculates to and through its paired outlet channel, with no liquid flow to or through the applicator channel, thereby substantially eliminating stagnation in any of said channels in either the â€œopenâ€  or â€œclosedâ€  mode of operation of any of said microvalves.