Patent ID: 6471503
Filing Date: 2002-10-29
Classification: B29C,F16K,Y10S,Y10T

Abstract:
A valve comprising:a) a housing having a first side and a second side; b) a disc mounted within said housing between said first side and said second side thereof and rotatable about a disc central axis, said disc including: i) a disc first face adjacent said housing first side; ii) a disc second face opposite said disc first face and adjacent said housing second side; iii) a first disc bore spaced radially outwardly from said disc central axis, said first disc bore extending from said disc first face partially through said disc; and iv) a second disc bore centered along said disc central axis and extending from said disc second face partially through said disc, said second disc bore having sufficient diameter and depth that said second disc bore communicates with said first disc bore; c) a plurality of first housing passages passing through said housing first side, said first housing passages being spaced radially outwardly from said disc central axis, at least one of said first housing passages selectively communicating with said first disc bore as said disc is rotated about said disc central axis; and d) a housing second passage passing through said housing second side, said housing second passage being generally in alignment with said disc central axis such that said housing second passage stays in constant communication with said second disc bore as said disc is rotated about said disc central axis.