Abstract: A child resistant trigger pump dispenser having an elongated, transversely oriented body member with the pump outlet at one end thereof and a vertically extending lower end section for receiving fluid from a container. The lower end section of the pump is equipped with a rigidly attached closure member having a multiplicity of short threads with projections adjacent their ends on the inner wall of the downwardly depending skirt. The container neck is provided on its outside surface with a multiplicity of long interrupted threads, some having recessed portions on their underside adjacent their terminal ends to receive the projections on the short threads on the closure member skirt portion.

Abstract: An apparatus for threading a closure which includes a vertically movable nest for receiving a closure shell and a vertically movable threading tool which includes a cylindrical threading member having threads on the outside thereof which is receivable within the shell and is movable in an orbital path to produce threads on an inside curl that has been previously formed on the closure shell.

Abstract: An accumulative pressure pump that has upper and lower pressure chambers of different diameters, each of which is provided with a piston having a connected stem. A third seal piston is provided between the upper and the lower piston. Inlet and outlet check valves are provided. The outlet valve opens on accumulation of pressure on the downward stroke of the two pistons. The lower portion of the inner sidewall of the lower chamber is provided with a rib or a recess to permit any air trapped in the two chambers to be expelled through a bottom opening that is provided in the lower chamber. The dip tube is connected directly to the second piston and has its end abutting or adjacent the bottom of the container and is reciprocal with the second piston whereby its lower end moves into the lowermost portion of the container to permit substantial removal of the entire contents of the container.

Abstract: A child resistant finger pump dispenser having a vertically oriented body member or tank. The tank has a piston therein with an attached hollow outlet stem extending out of its upper end. An actuator button is attached to the upper end of the stem and has a laterally directed spray nozzle extending from the side of the skirt portion of the actuator. A housing has an upper portion that partially surrounds the actuator button and a lower portion that supports the tank and includes a depending skirt having a multiplicity of short threads with projections adjacent their ends on the inner wall of the downwardly depending skirt. The container neck is provided on its outside surface with a multiplicity of interrupted threads, some having recessed portions on their underside adjacent their terminal ends to receive the projections on the threads on the closure member skirt portion.

Abstract: A thermoplastic closure suitable for fitment to a threaded container neck is disclosed. The closure has at least one venting groove in the sidewall traversing the closure thread. A rigidifying means is provided at the point of traverse of the venting groove and the closure thread. This rigidifying means has a perpendicular height measured from the sidewall less than the perpendicular height of the closure thread also measured from the sidewall. The rigidifying means provides hoop strength to the closure sidewall.

Abstract: An apparatus for threading a closure having cylindrical walls which includes securing the closure in a stationary nest, inserting a threading tool having indentions on the outside thereof into the interior of the closure, moving the closure into a ring having projecting threads on the inside thereof around the outside walls of said closure, moving the threading tool into contact with the interior portion of the closure upon which threads are to be formed, and moving the threading tool around the interior portion of the stationary closure in an orbital path to form threads in the closure without rotating the threading tool about the threading tool axis.

Abstract: An actuator assembly for a dispensing device including a cap for engagement with a container neck, the cap having a series of arcuate protuberances therein, an operable dispensing button with a discharge orifice, the button having a series of tabs thereon, a cover piece enclosing the button which exposes a portion of the button for finger engagement, and a guide slot in the cover piece to prevent relative movement between the button and the cover piece. The arcuate protuberances and the tabs cooperate to prevent fluids from being dispensed from the dispensing container until the protuberances and tabs are properly aligned.

Abstract: An integral thermoplastic biasing hinge is disclosed. Hinged plate members are biased to achieve one of two positions, e.g., an open or closed position by the utilization of a spring member having two arms which are resiliently connected at one of their ends and hingedly connected to the plate members at their other ends.

Abstract: This invention relates to a tamperproof package which includes a thermoplastic closure for fitment to a container which has a threaded neck portion and an outwardly extending annular flange adjacent but beneath the threaded neck portion. The thermoplastic closure features an annular band which is attached to the lowermost extent of the closure sidewall by way of a plurality of spaced-apart frangible ribs. Pendantly attached to the lower portion of the annular band is a plurality of spaced-apart tabs. These tabs are inwardly foldable so that a tab portion will be in a position of interference with the container annular flange when the closure is fitted to the container. This interference prevents removal of the closure from the container unless there is fracture of the frangible ribs. Rib fracture indicates that the closure has been tampered with by removal or attempted removal of the closure.

Abstract: An apparatus for forming a thread about the sidewall of a closure is disclosed. The apparatus features a nest for holding the closure and a circular tool fittable within the closure while it is in the nest. The nest and the circular tool have cooperating die means so that when the circular tool achieves planetary motion the die means coact one with the other to form a thread on the closure.

Abstract: A method and apparatus for threading a closure which includes securing the closure in a stationary nest, inserting a threading tool having threads on the outside thereof into the interior of the closure, moving the threading tool into contact with the interior portion of the closure upon which threads are to be formed, and moving the threading tool around the interior portion of the stationary closure in an orbital path to form threads in the closure without rotating the threading tool about the threading tool axis.

Abstract: A child-resistant package characterized by a container with a threaded neck portion, a closure provided with a multiplicity of threads cooperatively engaging the threads on the neck portion, means connected to the threaded neck portion for stopping the threading rotation of the closure onto the threaded neck portion at a predetermined position, and resilient liner means interposed between the underside of the top of the closure and the top of the neck portion.

Abstract: A two-piece, twist-on, twist off closure which permits fluids to be dispensed from a container. The two-piece closure includes an insert which can be fastened to a container, a post located in the center of the insert, and a sleeve which fits onto the outside of the insert and has a hole in the center thereof for receipt of the post to form a seal therewith.

Abstract: A thermoplastic closure suitable for fitment to a threaded container neck is disclosed. The closure has a top wall with an annular sidewall depending therefrom. To provide a gas-tight seal between the closure and the container, there is provided a gas-tight sealing system above the closure thread. About the inside surface of the annular sidewall is an extended closure thread which, due to its extent, requires the user to make two turning motions to achieve removal of the closure from the container. By requiring two turning motions, sufficient time is provided for venting of any pressurized gas from the container to the atmosphere. This venting can be facilitated by the utilization of any conventional venting means.

Abstract: A threaded thermoplastic closure having a free-floating liner is disclosed. To prevent backoff of the closure from a container, studs are provided on the top wall of the closure which anchor the closure to the liner, thus utilizing the resistance to rotation present between the liner and the container lip.

Abstract: A metal cap or closure having a smooth, rounded edge. The smooth, rounded edge is formed by contacting the rough edge of the cap or closure with a plurality of moving metal spheres. The apparatus for forming the smooth, rounded edge includes a plate in which the spheres are rotatably mounted and a holder for holding the closure over the spheres so that the edge of the closure contacts the rotating spheres.

Abstract: A thermoplastic closure for fitment to a container for packaging product capable of producing internal container pressure, e.g., carbonated beverages, is disclosed. The closure comprises a top wall and an annular sidewall downwardly depending from the top wall. A closure thread on the inside surface of the sidewall is provided for cooperation with the container neck thread to achieve fitment of the closure to the container. A sealing system adjacent the top wall of the closure provides sealing of the closure to the container. Venting structure is provided on either the closure or the container or both for venting of pressurized gas from the container upon loss of the seal when the closure is rotated to remove it from the container. A heat-shrinkable tamper-indicating means is attached to the lowermost edge of the sidewall of the closure. Application of heat to the tamper-indicating means causes it to shrink towards the container and to a point of interference with a container flange.

Abstract: A child-resistant closure for a container having a threaded cylindrical neck. The container neck is provided with a plurality of outwardly extending ratchet-teeth on its exterior surface below the thread. The cap portion of the closure has a central opening in its top surface that receives the base of the article to be attached to the container neck, e.g. a trigger pump. A collar member is received on the lower end of the closure member and is axially movable thereon. The collar member is provided with a plurality of ratchet-teeth adapted to engage the ratchet-teeth on the neck of the container when the collar is in its lower or down position. The cap has spaced apart splines on its skirt which define recesses that receive inwardly directed lugs provided at the top of the collar. The engagement of the lugs and splines permit the collar to move axially on the cap but prevents separate radial movement between the collar and cap.

Abstract: A dispensing device for a pressurized liquid container capable of delivering metered quantities of an aerosol composition having a discharge tube through which the container can be filled with fluids under pressure including a generally cylindrical chamber including an upper chamber and a generally cylindrical lower chamber, a discharge tube mounted in the sealed upper end of the chamber and extending into the chamber, the discharge tube being axially movable in the chamber and having a cup-shaped piston member rigidly connected thereto, the cup-shaped piston having a resilient rim slidable within the lower chamber when the discharge tube is depressed a predetermined amount to isolate a metered quantity of fluid within the upper chamber, the rim of the cup-shaped piston member being sufficiently resilient to allow fluids introduced under pressure through said discharge tube during filling of the container to flow between the rim and the side walls of the lower chamber.

Abstract: A two-piece nozzle, for fitment to hand actuated liquid pumps having a barrel portion and a bore therethrough for passage of liquid, is disclosed. The nozzle has an integrally formed nozzle cap which is mounted to the end portion of the barrel. Enclosed within the nozzle cap is an integrally formed sealing structure which is attached to the barrel of the pump. The sealing device provides a peripheral liquid-tight seal around the barrel between the nozzle cap and the barrel. It also provides a check valve which is movably positioned at the mouth of the bore to provide a liquid-tight bore seal. The check valve is biased to provide the liquid-tight bore seal which bias can be overcome by liquid pressure in the bore developed upon actuation of the pump.