Abstract: A pump dispenser has a pump body and a reciprocable plunger with a lock-down mechanism, comprising internal or external lock formations of the plunger and body, such as thread formations, by which the plunger can be locked down for shipping and released subsequently by a rotational release movement. To supplement security for demanding shipping conditions the dispenser also has a supplementary catch mechanism in which respective catch formations of the plunger and body engage selectively in the locked-down position to inhibit the rotational release movement. The catch formations may have circumferentially-directed surfaces which engage between the underside of a plunger head having a shroud and a nozzle and the top of the body beneath the plunger head. They can be released by resilient deformation of one or more of the catch formations.

Abstract: A dispenser pump has a plunger (3) operable in a body including an outer cylinder body (6) having a vent opening (66) in its sidewall and a body insert (7) fitting into the top of the outer body and providing an external collar through which the plunger stem operates. The body insert (7) has lock-down threads (722) to lock down the plunger for shipping. The insert (7) also has formations for blocking or unblocking the vent opening (66) by rotation between the outer body (6) and body insert (7), driven by rotation of the plunger head (31) which makes a catch engagement with the top of the body insert (7). This plunger head rotation is the locking or unlocking action for the plunger lock-down. Blocking the vent during shipping reduces leakage.

Abstract: A dispenser for dispensing a flowable product from a container has a pump module mounted on the container at an opening thereof. The pump module includes a pump body, which defines a pump chamber and a pump chamber inlet for product to flow from the container interior into the pump chamber. A pump actuator is operable in a pumping stroke relative to the pump body to vary the volume of the pump chamber and dispense the product. The pump includes a movable body portion which is operable in a displacement stroke into the container. The movable portion has a displacement body with a product-engaging face directed onto an interior product space of the container upstream of the pump chamber inlet, to assist priming. Below this a disrupter member, a grid of narrow bars, projects to penetrate the product.

Abstract: A pump dispenser has a deformable pump chamber constituted by first and second part-chambers each having a respective resiliently deformable faceted chamber wall and a connecting conduit communicating between them. They may be moulded in one piece and require no separate restoring spring. The first and second part-chambers may be disposed in line between a pump body providing an inlet valve from a container and a movable actuator cap providing a valved outlet.

Abstract: A pump dispenser has a deformable pump chamber constituted by first and second part-chambers each having a respective resiliently deformable faceted chamber wall and a connecting conduit communicating between them. They may be moulded in one piece and require no separate restoring spring. The first and second part-chambers may be disposed in line between a pump body providing an inlet valve from a container and a movable actuator cap providing a valved outlet.

Abstract: A foam dispenser has a foam-generating pump (1) mounted on a container (100) to hold liquid. The pump (1) has a liquid intake conduit with a ball valve (27) and an air intake conduit (45) provided partly by a jacket component (4) fitting around the pump body (2) with clearance. The pump has structure defining a mixing zone (50) for mixing air and liquid, a foam chamber (28) for holding foam received from the mixing zone, and a discharge conduit leading from the foam chamber to a discharge outlet (36). The mixed air and liquid pass through a permeable foam regulator mesh (54). One or more air inlets (47) lead into the mixing zone (50) from the air intake conduit (45). A liquid inlet in the form of a restricted jet orifice (89) leads into the mixing zone (50) from the liquid intake conduit, upstream of the inlet ball valve (27). A regulator mesh (53) is also provided between the liquid inlet and mixing zone.

Abstract: A dispenser for dispensing a flowable product from a container has a pump module mounted on the container at an opening thereof. The pump module includes a pump body, which defines a pump chamber and a pump chamber inlet for product to flow from the container interior into the pump chamber. A pump actuator is operable in a pumping stroke relative to the pump body to vary the volume of the pump chamber and dispense the product. The pump includes a movable body portion which is operable in a displacement stroke into the container. The movable portion has a displacement body with a product-engaging face directed onto an interior product space of the container upstream of the pump chamber inlet, to assist priming. Below this a disrupter member, a grid of narrow bars, projects to penetrate the product.

Abstract: An outlet valve for a dispensing nozzle comprising a first valve component constructed and arranged to be received by the dispensing nozzle and a second valve component constructed and arranged to cooperate with the first valve component. The first valve component and the second valve component define a normally-closed flow interface.

Abstract: A dispensing closure for dispensing fluid product from a squeeze container consists of an outer cap element (3) and an inner element or valve disc (4) fitting inside the cap element. Each is moulded from thermoplastics; no elastomer is used. The cap element includes an outwardly-deflectable diaphragm wall (35) around a central outlet opening (361). The inner element (4) has a peripheral mounting ring (41), a central blocking portion (48) and a set of support spokes (46) providing flow clearance between them. In a closed position the blocking portion closes the outlet opening. In an outflow condition the diaphragm wall (35) deflects outwardly to allow flow. In a recovery mode the blocking portion (48) deflects inwardly for compensation air or residual liquid product to enter the container.

Abstract: An outlet valve for a dispensing nozzle comprising a first valve component constructed and arranged to be received by the dispensing nozzle and a second valve component constructed and arranged to cooperate with the first valve component. The first valve component and the second valve component define a normally-closed flow interface.

Abstract: A pump dispenser comprising a container having a neck (6) to which the pump is attached. A pump body (1) has an outward flange (91) through which it is supported on the edge of the container neck (6). A body/neck rotation stop mechanism (64,7) is provided by an interlock engagement between the pump body and the container neck, and has widely-spaced interlock projections (64) on the container neck (6), e.g. one or two projections, each having a circumferentially-directed abutment face (642). A series of spaced interlock teeth (71) projects down from the outward flange (91) of the pump body and these have respective abutment faces (711) to engage the neck projections and limit relative rotation of the pump body and neck. This can assure reliable action of a plunger-locking mechanism of the dispenser.

Abstract: A dispensing closure for dispensing fluid product from a squeeze container consists of an outer cap element (3) and an inner element or valve disc (4) fitting inside the cap element. Each is molded from thermoplastics; no elastomer is used. The cap element includes an outwardly-deflectable diaphragm wall (35) around a central outlet opening (361). The inner element (4) has a peripheral mounting ring (41), a central blocking portion (48) and a set of support spokes (46) providing flow clearance between them. In a closed position the blocking portion closes the outlet opening. In an outflow condition the diaphragm wall (35) deflects outwardly to allow flow. In a recovery mode the blocking portion (48) deflects inwardly for compensation air or residual liquid product to enter the container.

Abstract: A dispenser pump for spraying a fine mist has a plunger (2) reciprocable in a pump body (3). The plunger has a head (4) and a stem (5). A closure (8) holds the pump in a container neck, and has an external decorative crimp sleeve (82). The plunger head has a matching external trim (72). A pump spring (7) is mounted outside the pump chamber (71), around the stem above the piston thereof. A pre-compression spring (75) acts to delay opening of the outlet piston seal until sufficient pressure builds in the pump chamber (71).

Abstract: A foam dispenser has a pump body and a sprung plunger (2). A one-piece moulded cylinder component (31) comprises a larger diameter portion (32) for an air cylinder and a smaller diameter portion (33) for a liquid cylinder. The plunger (2) carries respective pistons (22,21) movable in the air cylinder and liquid cylinder to pump air and liquid through valved outlets to a mixing chamber (8) in the plunger for foam production. The liquid cylinder has a discrete inlet piece (9) including an inlet valve. The liquid outlet valve is operated by a valve pin (25) connected to a valve pin retainer (39) which is formed integrally as a one-piece moulding with the cylinder component (31).

Abstract: A dispensing closure for dispensing liquid, comprising an outer nozzle component (6) defining a nozzle opening (66) and a valve assembly (7) disposed in the closure upstream of the nozzle opening, the valve assembly comprising an outer valve element (3) and a generally rigid intermediate valve seat element (4) disposed inwardly of the outer valve element, the outer valve element comprising an outer valve flap (38) and the intermediate valve element (4) defining an outflow opening (451) bordered by an outer seat region (411,471), the outer valve flap (38) being movable between a closed position, in which it overlaps the outer seat region of the intermediate valve element to close the outflow opening (451) against inflow therethrough, and an open position, in which it is deflected away from the outer seat region (411,471) to open the outflow opening for outflow.

Abstract: A dispensing closure for a squeeze bottle comprises an outer element, an intermediate element and an inner element. The outer element (3) comprises an outwardly-deflectable diaphragm (35) surrounding an outlet opening (36). The intermediate element (5) comprises an annular seat (57) underlying the outlet opening (36) of the outer element and support structure (56) for the annular seat, with an inflow opening (552) through the annular seat (57) and an outflow opening (551) through the intermediate element around the annular seat (57). The inner element comprises a blocking portion (48; 148) and support structure (46; 146) mounting the blocking portion in the closure aligned with the annular seat. The diaphragm has an inward closed position in which the annular seat of the intermediate element engages around the outlet opening to block flow, and an outwardly-deflected position in which it allows outflow through the outflow opening and outlet opening.

Abstract: A dispenser pump is constituted by a closure body (2), a diaphragm body (3) which forms a pump chamber with the closure body and optionally a top actuator (4) for pressing the diaphragm body (4). The diaphragm body has a deformable wall (35) formed integrally in the same polymer as its annular mounting portion (31). An inlet valve (5) through the floor (21) of the closure body has a flap (52) which is formed and hinged integrally with that floor (21). An outlet valve may also be formed in the same polymer, either integrally with the diaphragm body or as a separate component. The deformable wall of the diaphragm body is shaped to generate a restoring force itself without a separate spring, so that the entire pump may be made from the same polymer e.g. polypropylene and without metal components.

Abstract: A dispenser has a plunger (3) operable in a pump body (4). The plunger can be locked up or locked down, and formations (88,89) of a pump plunger stem and pump body insert (6) for achieving this are described. Components of the dispenser, including a pump body cylinder/closure component (5), container neck and a pump body insert (6), are rotationally locked together with non-selective alignment and sealed by sliding-fit seals to prevent damage or leakage caused by relative turning of the components in transit.

Abstract: A dosing device is described, for dispensing doses of liquid from a container. It has an outlet passage with a front outlet tube (44) and a control chamber (2,29) positioned behind the front outlet tube. A flow path for dosed flow of liquid squeezed from the container leads in around the front of the control chamber (2,29) to the outlet tube (44), via flow openings (23). The control chamber (2) has control openings (28) to admit a restricted flow and time the fall of a blocking piston (3) to a blocking position where it blocks the outlet passage to terminate a dose. To improve uniformity of dosing, the outlet tube (44) has a tortuous flow-restricting formation (449) formed by a set of inward radial finger projections (49).

Abstract: A foam dispenser has a foam-generating pump (1) mounted on a container (100) to hold liquid. The pump (1) has a liquid intake conduit with a ball valve (27) and an air intake conduit (45) provided partly by a jacket component (4) fitting around the pump body (2) with clearance. The pump has structure defining a mixing zone (50) for mixing air and liquid, a foam chamber (28) for holding foam received from the mixing zone, and a discharge conduit leading from, the foam chamber to a discharge outlet (36). The mixed air and liquid pass through a permeable foam, regulator mesh (54), One or more air inlets (47) lead into the mixing zone (50) from the air intake conduit (45). A liquid inlet in the form of a restricted jet orifice (89) leads into the mixing zone (50) from the liquid intake conduit, upstream of the inlet ball valve (27). A regulator mesh (53) is also provided between the liquid inlet and mixing zone.