Abstract: A two-compartment dispenser of fluent material includes a primary compartment having a collapsible wall and initially holding the main body of the material, a secondary compartment, and a compartment separator that forms a barrier between the two compartments and has a passage for the fluent material to flow from the primary to the secondary compartment. A dispensing nozzle as connected to the secondary compartment, which also has a movable wall portion resiliently biased to expand the volume of the secondary compartment to its fullest extent. A check valve controls the passage through the compartment separator and is closed when the movable part of the secondary compartment is pressed inwardly to force fluent material from the secondary compartment out through the dispensing nozzle. Release of pressure on the movable part reduces pressure in the secondary compartment and allows the check valve to open so that fluent material can flow from the primary compartment to the secondary compartment.

Abstract: An improved collapsible container includes an outer rigid portion with a flange and a downwardly extending flexible bag portion so as to permit ease of filling, sealing and transport. Dispensing is done, preferably with a pump which, on first actuation, breaks the seal on the container. The pump, and a rigid outer container with which the collapsible container is used, are adapted for reuse with only the collapsible container and its contents replaced.

Abstract: A trigger attachment, for a finger operated pump having an axially outwardly projecting actuating and dispensing stem having therein an axial bore through which material is dispensed upon axial inward movement of the stem, has a body attached to the pump body and a generally vertically extending portion which can be griped by the hand, a trigger mechanism hinged to the body and adapted to be coupled to said actuating stem, the trigger mechanism converting a radial motion of the trigger with respect to the body into axial inward motion at the actuating stem, and a nozzle coupled to the outlet bore in said actuating stem.

Abstract: A pressurized dispenser which includes a container, a mounting cup with a central opening attached thereto, a dispenser having a body member forming a tank and an open top portion, a dispensing stem projecting through the central opening, the body retained in the mounting cup, and a diaphragm interposed between the body and the mounting cup sealing around the projecting stem. The body member forms a chamber having a diameter smaller than the diameter of the tank axially inward of the tank, to form a bottom in the tank at the point where the chamber begins. At least one hole is formed in the bottom radially outward of the chamber forming a path to the inside of the container. A piston-like member inserted into the tank extending to its bottom has a flange extending axially inward terminting in a sealingly lip sealing against the side of the tank at the bottom and an annular portion axially inward of the sealing edge forming a throat, with the valve stem extending through the throat.

Abstract: A directional applicator for a self-defense product includes a container having a bottom, side walls and a top; a valve mounted to the top of the container, an actuating stem, having an axial dispensing bore, for the valve, projecting outwardly from the container; an actuator with a first part having therein a spray nozzle disposed on the stem of the nozzle disposed on the stem of the valve with the nozzle in communication with the bore, and a second actuator part fixedly mounted to the container; and a key-ring mounted to the first part which is fixed to the container for axial sliding movement along the applicator between a position where it is adjacent to the actuator and a position where it is spaced from the actuator sufficiently to permit a thumb or finger to be inserted between the key-ring and actuator to operate the actuator to thereby provide a safety feature to prevent accidental actuation.

Abstract: In an atomizing pump dispenser which includes a pump body having a pump chamber with a piston disposed for reciprocal motion therein for dispensing a fluid from the pump chamber upon depression of a dispensing stem which is operatively coupled to the piston, and in which a valve member operatively coupled to the piston closes off an inlet throat for the chamber during dispensing, the inlet throat being formed by a separate insertable flexible seal, the flexible seal is disposed at the bottom of the pump chamber in such a manner as to be slidable between two positions. In the first position, which the seal assumes when the pump stem is depressed, it abuts against the pump body to prevent communication between the pump chamber and the space below the throat.

Abstract: In a dispensing actuator which includes a button rotatable between a dispensing and nondispensing position, between two stops, the button having a tab engaging the stops, to avoid overriding the stop in the dispensing position, the tab has an inwardly extending lip which abuts against the stop. The button also may include a flash burr formed on the outer circumference of the inner end of the button to frictionally engage the inside of the bore to permit automatic assembly of the actuator onto the container and valve without danger of the button falling out of the housing.

Abstract: A dispenser package has an outer case which is open on one end and which receives, in its other, partially closed, end, a snap-fitted dispenser assembly. The actuating stem of the dispenser extends out of a small opening in the end of the outer case to which the dispenser is fitted. A closely fitted inner container is filled with the fluid product to be dispensed and is then press fitted into the outer case, provision being made to vent the trapped air during assembly. The inner end of the inner case is seated against the dispenser assembly and so provides additional direct support for maintaining the dispenser in place.

Abstract: A pressurized dispenser including a container, a mounting cup having a central opening therein, said mounting cup attached to said container, a dispensing means comprising a body member forming a tank and having an open top portion with a dispensing stem projecting therefrom through said central opening in said mounting cup, said body retained in said mounting cup, and a diaphragm interposed between said body and said mounting cup, sealing around said projecting stem at least when said stem is in an unoperated position, a passageway is formed in the body extending across the top of said body and through the body, the passage in communication with the tank in the area below the diaphragm, an annular gasket is interposed between the mounting cup and container, the gasket having an opening with the same profile as the outside of the body disposed so as to seal against the body to interrupt communication between the passageway and container, so that, during pressure filling, when pressure medium is supplied to th

Abstract: A triple seal valve member for an atomizing pump dispenser which includes an integrally molded plastic valve member having an outer portion terminating in a sealing tip for sealing against an axial outlet port, the outer part being of a first cross section; an inner part containing therein a hollow recess open at its inner end for accepting a biasing spring, the inner part of a larger cross section than the outer part, the radially outer portion of the inner part adapted to seal against an opening at the inner end of a pump chamber; an intermediate portion forming a generally cylindrical recess between the inner and outer portions, the recess in communication with the hollow recess in the inner portion; a narrowed throat formed at the area of communication between the hollow recess and the cylindrical recess; said intermediate portion having openings therein in the vicinity of its outer end permitting communication between the cylindrical recess and the area above the said inner portion; with a ball having a

Abstract: A vented pump and pre-loaded spring for dispensing liquid at a controlled rate from a container upon depression of a plunger or stem. A pump body extends within the container and houses the stem and piston. The lower end of the stem functions as an inlet valve. The piston is slidable on the stem between upper and lower stop limits and seals the outlet passage in the stem when the plunger is in a raised position. An initial downward movement of the plunger closes the inlet valve and then, after a slight build up of pressure within the pump chamber, moves the outlet passage downwardly of the piston into communication with the pump chamber below the piston. Continued downward motion of the stem moves the piston downwardly and expels the liquid through the outlet passage while maintaining a constant seal at the inlet valve.

Abstract: Various means for controlling the rate of travel of a plunger through a pump chamber in a dispensing pump are disclosed including an arrangement in which a cap is slidably mounted to the upper end of the pump plunger and a spring interposed between the cap and plunger with a detent mounted on the container contacting the plunger to prevent downward motion so that as the cap is depressed it is moved downwardly relative to the plunger preloading the spring and in which, after a predetermined degree of motion of the cap relative to the plunger, the lower end of the cap releases the detent to that the preload expands driving the plunger downwardly at a uniform rate. In another illustrated embodiment a preload spring is disposed within the pump between a plunger stem and plunger piston, the hydraulic forces within the pump chamber permitting the spring to be compressed before an outlet passage is opened, the spring once again acting to permit uniform discharge.

Abstract: An improved plastic seal valve for the bottom of the chamber of a dispensing device in which a valve stem operates. The valve stem is hollow and contains a cross hole which is normally located just above an annular plastic seal made between the housing and the stem at the bottom of the tank, the cross hole porting the hollow stem, with the plastic seal allowing closer tolerances in manufacture of the stem and allowing greater accommodation for such distortions as may still occur in molding through flexibility in the bottom stem portion the stem having a taper that just release the sealing pressure and functions on the bottom seal as the upper seal closes. In addition a weaker spring may be used, thus, making it easier to operate the valve while at the same time obtaining improved sealing over the life of the valve.

Abstract: A liquid dispenser which permits dispensing liquid or viscous semi-liquid products from an unpressurized container using a non-vented pump in which a rigid outer container open on one end and having a breathing hole holds a flexible collapsible bag, filled with the product to be dispensed; the bag is affixed to the container as by extending through the open container end and the bag ends overlapping the containers edges, and the non-vented pump installed therein placed on or over the open container end so as to seal the bag against the outer container. When operated, the force of the atmospheric pressure, acting through the hole, partially collapses the bag, and forces the liquid to be dispensed into the pump.

Abstract: A glass container is molded with a recessed outlet end having a sharp outer edge and an enlarged lip. The outside surfaces of the lip of the container from a point adjacent the recessed opening are straight in part and convexly shaped in another part and terminate in a portion of reduced diameter at the neck of the container. A closure assembly centrally housing an aerosol "or pump-type" valve is formed with a depending flange, an annular stepped portion adjoining the central housing, and a concave surface portion connecting the stepped portion and the depending flange. A liquid elastomeric resin lining is flowed onto the concave surface and depending flange portions and cured to form a resilient liner. The closure assembly is then mounted upon the recessed open end of the glass container forming an inwardly diverging channel between the recessed outlet and enlarged lip of the container on the one hand and the stepped and concave portions of the closure assembly on the other hand.

Abstract: A glass container is molded with a recessed outlet end having a sharp outer edge and an enlarged lip. The outside surfaces of the lip of the container from a point adjacent the recessed opening are straight in part and convexly shaped in another part and terminate in a portion of reduced diameter at the neck of the container. A closure assembly centrally housing an aerosol "or pump-type" valve is formed with a depending flange, an annular stepped portion adjoining the central housing, and a concave surface portion connecting the stepped portion and the depending flange. A liquid elastomeric resin lining is flowed onto the concave surface and depending flange portions and cured to form a resilient liner. The closure assembly is then mounted upon the recessed open end of the glass container forming an inwardly diverging channel between the recessed outlet and enlarged lip of the container on the one hand and the stepped and concave portions of the closure assembly on the other hand.