Patent ID: 6598618
Filing Date: 2003-07-29
Classification: A61M,G05D,Y10T

Abstract:
A wide-range flow regulator for low fluid flows, comprising:a housing comprising first and second chambers, said first and second chambers each having an inlet and an outlet, said outlet of said first chamber and said inlet of said second chamber connected by a labyrinth path; an at least partly elastic diaphragm separating said first chamber and said second chamber, said diaphragm comprising an outer ring, a central disk, and an intermediate section connecting said outer ring and said central disk, wherein said intermediate section is more flexible than said central disk; and a discharge tube having an inlet connected to said outlet of said second chamber, wherein the central disk of said diaphragm seals the inlet of said discharge tube when there is a change in the pressure differential between said second chamber and said first chamber.