Patent ID: 6298873
Filing Date: 2001-10-09
Classification: F16K,Y10T

Abstract:
A two-way check valve comprising:a first portion and a second portion;a plate separating said first portion from said second portion;a first internal passageway including a first circular channel in said first portion and a second opening in said second portion, wherein a first opening is formed in said first circular channel;a second internal passageway including a third opening in said first portion and a second circular channel in said second portion, wherein a fourth opening is formed in said second circular channel;said first circular channel including a first o-ring as a first valve means for selectively opening and closing said first opening allowing flow from said second portion to said first portion while blocking flow from said first portion to said second portion; andsaid second circular channel including a second o-ring as a second valve means for selectively opening and closing said fourth opening allowing flow from said first portion to said second portion and blocking flow from said second portion to said first portion.