초록 ▼

A normally closed valve that may be opened upon insertion of a nozzle, wherein an actuator that engages the nozzle is shaped to enhance the ability to flush thoroughly the interior volume of the valve, which includes a valving chamber. Located in the valving chamber is an actuateable valve element t

A normally closed valve that may be opened upon insertion of a nozzle, wherein an actuator that engages the nozzle is shaped to enhance the ability to flush thoroughly the interior volume of the valve, which includes a valving chamber. Located in the valving chamber is an actuateable valve element that, in a first position, blocks flow through the passageway passing through the housing and that, in a second position, permits flow through the passageway. The actuator, which has a perimeter wall, is disposed adjacent the actuateable valve element. The inlet end of the actuator engages the nozzle when the nozzle is inserted into the valve, and the actuator urges the actuateable valve element into the second position when the nozzle pushes on the actuator. The perimeter wall may define an interior actuator path passing through the inside of the actuator. An exterior actuator path passes between the perimeter wall and the housing. The actuator includes structures for permitting flow from the nozzle to the exterior actuator path, and in a preferred embodiment, structures disposed on the perimeter wall's outlet end permit flow from the interior actuator path to the valving chamber. The actuator preferably further includes a structure, disposed within the perimeter wall, for restricting flow through the interior actuator path. This structure for restricting flow preferably includes a transverse wall mounted to and within the perimeter wall. Protrusions on the exterior of the perimeter wall may be used to keep the actuator centered in the valve.

대표청구항 ▼

[ I claim:] [1.] A normally closed valve that may be opened upon insertion of a nozzle, the valve comprising:a housing including:an inlet housing portion defining an inlet section of a fluid passageway, andan outlet housing portion defining an outlet section of the fluid passageway, the inlet and ou

[ I claim:] [1.] A normally closed valve that may be opened upon insertion of a nozzle, the valve comprising:a housing including:an inlet housing portion defining an inlet section of a fluid passageway, andan outlet housing portion defining an outlet section of the fluid passageway, the inlet and outlet housing portions being connected so as to permit fluid communication between the inlet and outlet sections of the fluid passageway,the housing further defining a valving chamber, the valving chamber forming a middle section of the fluid passageway between the inlet section and the outlet section;an actuateable valve element, located in the valving chamber, that in a first position blocks flow through the passageway, and that in a second position permits flow through the passageway; andan actuator, disposed adjacent the actuateable valve element and the inlet section, for urging the actuateable valve element into the second position when the nozzle is inserted into the inlet section, the actuator including:a perimeter wall, the perimeter wall having an inlet end disposed away from the valve element and an outlet end disposed towards the valve element, the perimeter wall defining an interior actuator path, and the perimeter wall and the housing defining an exterior actuator path,means for permitting flow from the nozzle to the exterior actuator path, wherein the means includes means for maintaining a space between the perimeter wall's interior surface and the nozzle's exterior surface, andmeans, disposed on the perimeter wall's outlet end, for permitting flow from the interior actuator path to the valving chamber.