Patent ID: 7128081
Filing Date: 2006-10-31
Classification: B01L,F16K,F25B,G01N,G05D,H01L,Y10T

Abstract:
1. A method of controlling the flow of a fluid comprising the steps of: a. providing a housing having a heated thermal mass at a first position and a cooled thermal mass at a second position, said heated thermal mass oriented with respect to said cooled thermal mass at a second position with an intervening gap; b. providing a movable block having a channel, said channel being capable of receiving a fluidic conduit, said movable block located in said intervening gap and, said fluidic conduit capable of transporting one or more fluids, freezing the fluids contained therein at a low temperature to restrict flow and thawing fluids contained therein at a high temperature to allow flow; c. providing a movement means secured to said housing to move said movable block between said first position and said second position, d. actuating said movement means to move said movable block between said first position to restrict flow and said second position to allow flow.