Patent ID: 7207347
Filing Date: 2007-04-24
Classification: B60K,F16K,Y10T

Abstract:
1. An over filling interdiction, vapor venting and roll over multi-function valve comprising a housing defining a confined space formed with one or more fluid inlets to said confined space, a fluid outlet chamber at top end of said housing and being in flow communication with an outlet duct; a first outlet port extending between said confined space and said fluid outlet chamber, and a second outlet port extending between said confined space and said fluid outlet chamber; a valve assembly located within the confined space and comprising a first stage float member associated with said first outlet port, and a second stage float member associated with said second outlet port, said float members being axially displaceable by buoyancy forces within the confined space about parallel axes, from an open position in which said first and second outlet port is open to a closed position; in which said first and said second outlet port is respectively sealingly engaged by said first stage float member and by said second stage float member wherein said first stage float member at least partially overlaps over said second stage float member such that when said first stage float member is in its open position it is supported by the second stage float member, the arrangement being such that only displacement of the second stage float member from the open position into closed position the first stage float member can be displaced into its closed position and sealingly engage the first outlet port.