AEROSOL VALVE ASSEMBLY

摘要

An aerosol valve assembly (10), lacking a return spring and dip tube, has a valve housing (30) and a valve body (40) with a lower portion (42), an intermediate portion (43) and a valve stem (41). A gasket (60) in a stem groove (45) seals one or more orifice openings (47) into the valve stem exce pt on valve actuation. The valve housing has a lower wall (32) with a central opening (33) for the valve body lower portion (42) to enter to stabilize the vertically acting valve; and, a plurality of product delivery openings (33) positioned about the central opening. A stroke-limiting surface (53) on the valve body prevents the gasket from completely escaping the stem groove on valve actuation. When valve actuation ceases, the valve is returned to close d position by the gasket acting against the stem groove, and the product actin g against the valve body bottom portion (42) and the lower surface of the valv e body intermediate portion (43).