Abstract: The improved aerosol valve of this invention comprises a gasketed integral valve stem and valve body wherein the stem orifice is disposed at the portion of the valve stem adjacent the upper surface of the valve body in a gasket-receiving groove that has an arcuate lower portion and an upper tapered shoulder portion.

Abstract: An actuator for an aerosol container, comprising a body forming an inlet, a top surface (16) defining a multitude of discharge slits (20), and a multitude of body passageways (22) to conduct fluid from the inlet to the discharge slits. Each of the body passageways has a pouch shape, including narrower upper (22a) and lower portions (22b) and a wider mid portion (22c). When the actuator is used to dispense foam from an aerosol container, the shape of the body passageways has several advantages. First, that shape helps the foam to expand as it passes outward through the dispenser, and second, after the container has ben used to dispense a quantity of foam, the shape of the body passageways helps to draw back into the actuator any excess foam remaining on the outside of the actuator. Preferably, the actuator is formed in a plastic injection molding process, and the body passageways of the actuator are formed into the desired shape as the plastic cools during the molding process.

Abstract: An actuator for an aerosol container, comprising a body forming an inlet, a top surface (16) defining a multitude of discharge slits (20), and a multitude of body passageways (22) to conduct fluid from the inlet to the discharge slits. Each of the body passageways has a pouch shape, including narrower upper (22a) and lower portions (22b) and a wider mid portion (22c). When the actuator is used to dispense foam from an aerosol container, the shape of the body passageways has several advantages. First, that shape helps the foam to expand as it passes outward through the dispenser, and second, after the container has been used to dispense a quantity of foam, the shape of the body passageways helps to draw back into the actuator any excess foam remaining on the outside of the actuator. Preferably, the actuator is formed in a plastic injection molding process, and the body passageways of the actuator are formed into the desired shape as the plastic cools during the molding process.

Abstract: A valve for a pressurized dispenser which includes, within a mounting cup, a valve housing and an annular gasket clamped between the cup and the housing for sealing a discharge passage of a movable valve stem, and which incorporates a clearance space in the cup around the outer marginal portion of the gasket to accommodate the marginal portion when the gasket is stretched during the filling of the dispenser to provide a flow path to the outside of the housing, and which has spacers spaced apart around the periphery of the gasket to define the distance between the cup and the housing within which the gasket is clamped, and between which the stretched gasket extends.