Abstract: A valve (100) includes a base (110) defining a central axis (114). The valve (100) includes a post (118) connected to the base (110) and extending axially outwardly from the base (110), in the direction along the central axis (114). The valve (100) includes at least one flow aperture (122) in one or both of the base (110) and/or the post (118). The valve (100) further includes a flexible membrane (126) having an orifice (130) and having a non-dispensing configuration wherein the orifice (130) is located proximate to the post (118) to minimize communication through the valve (100). The flexible membrane (126) has a dispensing configuration wherein the orifice (130) is moved away from the post (118) for establishing communication through the valve (100).

Abstract: A flow control device (40) for controlling the flow of a pressurized fluent substance is disclosed. The device (40) includes a housing (44, 48, 52) having an inlet portion (44) for receiving the fluent substance, an outlet portion (48) for discharging the fluent substance, and a platform (52). The device (40) further has a valve (56) located within the housing (44, 48, 52). The valve (56) is located between the platform (52) and the outlet portion (48). The valve (56) has a flexible, resilient valve head portion (160) that has confronting, openable portions (212, 216) movable from a closed configuration to an open configuration when the valve head portion (160) is subjected to a pressure differential acting across the valve head portion (160).

Abstract: A flow control device (40) for controlling the flow of a pressurized fluent substance is disclosed. The device (40) includes a housing (44, 48, 52) having an inlet portion (44) for receiving the fluent substance, an outlet portion (48) for discharging the fluent substance, and a platform (52). The device (40) further has a valve (56) located within the housing (44, 48, 52). The valve (56) is located between the platform (52) and the outlet portion (48). The valve (56) has a flexible, resilient valve head portion (160) that has confronting, openable portions (212, 216) movable from a closed configuration to an open configuration when the valve head portion (160) is subjected to a pressure differential acting across the valve head portion (160).