Abstract: An improved gasketed mounting cup for an aerosol container wherein the mounting cup has a curvilinear channel portion and the gasket is a folded-over sleeve gasket, simulating the gasket thickness of a cut gasket; wherein the outer segment of the folded-over gasket is longer than the other gasket segment but of a limited length that will allow the ultimate positioning of the gasket without the longer gasket segment contacting the surface of the mounting cup and being wedged between the bead of the container and the mounting cup during advancement of the gasket into the mounting cup.

Abstract: An apparatus for forming a double-segment overlapping gasket material for the mounting cup of an aerosol container comprising a punch mounted on a reciprocating ram having a central opening for the body of the mounting cup and a nose portion adapted to extend within the channel portion of the mounting cup, said nose portion having a specific shape and the punch having a shoulder in the inside diameter of the punch to urge the gasket material disposed on the body portion of the cup into the channel portion, whereat upon the bottoming of the punch against the gasket, a fold line is formed in the gasket which results in the formation of the overlapping double-segment gasket.

Abstract: In its broadest aspect, the present invention concerns a unitary flexible barrier of phallic configuration for use in a plural-zoned, valved pressure container wherein the barrier has a shaped spatial form having sufficient rigidity to maintain its shape prior to insertion into and use in a plural-zoned, valved pressure container. The barrier comprises a flexible wall portion, the free terminal end of the flexible wall portion forming a seal and the terminus of the flexible wall portion distal to the seal extending into a central piston region that closes the barrier. The wall portion is steeply frusto-conical in shape.

Abstract: An aerosol valve assembly, lacking a return spring and dip tube, has a valve housing and a valve body with a lower portion, an intermediate portion and a valve stem. A gasket in a stem groove seals one or more orifice openings into the valve stem except on valve actuation. The valve housing has a lower wall with a central opening for the valve body lower portion to enter to stabilize the vertically acting valve; and, a plurality of product delivery openings positioned about the central opening. A stroke-limiting surface 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 closed position by the gasket acting against the stem groove, and the product acting against the valve body bottom portion and the lower surface of the valve body intermediate portion.

Abstract: An easy-to-open aerosol valve assembly for viscous and semi-viscous products, lacking a metal or plastic return spring and product-carrying dip tube, has a valve housing and a valve body with a lower portion, an intermediate portion and a valve stem. A gasket in a stem groove seals one or more orifice openings into the valve stem except on valve actuation. The valve housing has an inwardly and downwardly depending lower wall with a central opening for the valve body lower portion to enter to stabilize the vertically-acting valve; and, a plurality of product delivery openings positioned about the central opening. A relatively narrow product flow passage lies between the side wall of the valve housing and the valve body intermediate portion. The valve body intermediate portion overlies the valve housing lower wall with its plurality of product delivery openings. A stroke-limiting surface on the valve body prevents the gasket from completely escaping the stem groove on valve actuation.

Abstract: An improved gasketed mounting cup for an aerosol container wherein the mounting cup has a curvilinear channel portion and the gasket is a folded-over sleeve gasket, simulating the gasket thickness of a cut gasket; wherein the outer segment of the folded-over gasket is longer than the other gasket segment but of a limited length that will allow the ultimate positioning of the gasket without the longer gasket segment contacting the surface of the mounting cup and being wedged between the bead of the container and the mounting cup during advancement of the gasket into the mounting cup.

Abstract: An improved gasketed mounting cup for an aerosol container wherein the mounting cup has a curvilinear channel portion and the gasket is a folded-over sleeve gasket, simulating the gasket thickness of a cut gasket; wherein the outer segment of the folded-over gasket is longer than the other gasket segment but of a limited length that will allow the ultimate positioning of the gasket without the longer gasket segment contacting the surface of the mounting cup and being wedged between the bead of the container and the mounting cup during advancement of the gasket into the mounting cup.

Abstract: An improved gasketed mounting cup for an aerosol container wherein the mounting cup has a curvilinear channel portion and the gasket is a folded-over sleeve gasket, simulating the gasket thickness of a cut gasket; wherein the outer segment of the folded-over gasket is longer than the other gasket segment but of a limited length that will allow the ultimate positioning of the gasket without the longer gasket segment contacting the surface of the mounting cup and being wedged between the bead of the container and the mounting cup during advancement of the gasket into the mounting cup.

Abstract: A dispenser comprising a valved aerosol container and a unitary flexible barrier member having an outer wall segment terminating at a sealing edge, which sealing edge is joined to the container between top and sidewall portions, and an inner wall segment joined to the outer wall segment through a fold and a central piston region emerging from the terminus of the inner wall segment distal to the old. The barrier being sufficiently thick and rigid to be free-standing before incorporation into a pressurized container. The outer and inner wall segments are oppositely-directed frustoconical shapes forming a small acute angle with each other when the barrier is initially inserted into the container. The outer wall segment may be thicker and more rigid than the inner wall segment. The barrier is nestable with like barriers.

Abstract: A dual receptacle aerosol sprayer with a thin, flexible plastic outer receptacle for product and a substantially rigid inner receptacle for propellant seated within the outer receptacle. A closure closes the inner receptacle and contains a valve assembly. Primary propellant and secondary product valves in the valve assembly control flow from the inner and outer receptacles up propellant and product valve stem bores into an actuator having an aspirating nozzle insert with a Venturi constriction. A conduit extends from the valve assembly through the inner receptacle and into the outer receptacle. To avoid propellant overloading and rupture of the outer receptacle, a one-way tertiary valve downstream of the secondary product valve closes on clogging of the actuator discharge outlet to prevent, during actuation, misdirected propellant flow from the actuator and through the stem product bore and the secondary product valve, from entering the outer product-containing receptacle.

Abstract: The present invention concerns a unitary flexible barrier for use in a plural-zoned, valved pressure container wherein the barrier has a shaped spatial form having sufficient rigidity to maintain its shape prior to insertion into and use in a plural-zoned, valved pressure container.

Abstract: A liquid sprayer with two side-by-side containers, an interconnecting bridge, and a nozzle insert positioned interiorly of the bridge. Alternatively, a two container piggyback liquid sprayer, a button actuator and a nozzle insert positioned interiorly of the button. One container is for product such as paint, etc., and the other container contains propellant. Very high product/propellant ratios are obtained. An intermediate portion of the nozzle insert has a venturi constriction with an internal propellant outlet orifice. Two product channels transverse to the nozzle insert longitudinal axis overlap the internal outlet orifice by approximately one-half. An outer frustoconical surface surrounds the internal venturi constriction outlet. An expansion chamber diameter is greater than the diameter of both the venturi constriction outlet orifice and the outer frustoconical surface adjacent this orifice.

Abstract: An improved gasketed mounting cup for an aerosol container wherein the gasket is a folded-over and hinged sleeve gasket; said gasket being used as an alternative to the cut-type gasket. In the preferred version the hinge is distal to the body portion of the mounting cup. There is also provided a method for forming the improved gasketed mounting cup, as well as a novel punch for forming the folded-over or hinged gasket.

Abstract: A liquid sprayer with two side-by-side containers, an interconnecting bridge, and a nozzle insert positioned interiorly of the bridge. Alternatively, a two container piggyback liquid sprayer, a button actuator and a nozzle insert positioned interiorly of the button. One container is for product such as paint, etc., and the other container contains propellant. Very high product/propellant ratios are obtained. An intermediate portion of the nozzle insert has a venturi constriction with an internal propellant outlet orifice. Two product channels transverse to the nozzle insert longitudinal axis overlap the internal outlet orifice by approximately one-half. An outer frustoconical surface surrounds the internal venturi constriction outlet. An expansion chamber diameter is greater than the diameter of both the venturi constriction outlet orifice and the outer frustoconical surface adjacent this orifice.

Abstract: A liquid sprayer with two side-by-side containers, an interconnecting bridge, and a nozzle insert positioned interiorly of the bridge. Alternatively, a two container piggyback liquid sprayer, a button actuator and a nozzle insert positioned interiorly of the button. One container is for product such as paint, etc., and the other container contains propellant. Very high product/propellant ratios are obtained. An intermediate portion of the nozzle insert has a venturi constriction with an internal propellant outlet orifice. Two product channels transverse to the nozzle insert longitudinal axis overlap the internal outlet orifice by approximately one-half. An outer frustoconical surface surrounds the internal venturi constriction outlet. An expansion chamber diameter is greater than the diameter of both the venturi constriction outlet orifice and the outer frustoconical surface adjacent this orifice.