| http://www.w3.org/ns/prov#value | - ng the valve toward or away from the seat, wherein there is an anchor mounted in the coupling body; wherein the biasing device includes a fulcrum pivotally mounted in the coupling body and having one end yieldably biasing the valve into closed position and an opposite end; and wherein the resiliently extensible member is an endless, resiliently expandable band that is in tensioned, circumscribing
|
