Abstract: A dispensing device including a bottle provided with a neck and a trigger dispensing head fitted to the neck is provided. The dispensing head includes a socket at least partially housed in the neck compartment, a main body that, with the socket, delimits a valve compartment in the neck, a valve group, a piston, a chassis, a trigger group, and elastic return elements. The valve group is contained in the valve compartment, limiting the overall size of the device.

Abstract: A trigger-type liquid dispenser, in which an upright and inverted dual unit includes a joint member, a pipe holding member, and a valve body. The joint member includes a through hole, which may be closed by the valve body, a valve-body-holding wall portion, which accommodates the valve body above the through hole in a manner such that the valve body is displaceable upward and downward, and an opening portion, which is formed in the valve-body-holding wall portion. In the inverted position, the upright and inverted dual unit permits content liquid contained in a container to be supplied to the dispenser main body by passing content liquid through a flow path from opening portion, through the hole, to the flow path defined between the joint member and pipe holding member sequentially. The valve body is inserted through the opening portion to be accommodated in the valve-body-holding wall portion.

Abstract: Disclosed is a foaming pump. The foaming pump includes a cylinder which receives contents discharged from a container and air introduced from outside, an open/close unit which opens or closes the cylinder, a head unit which is movable up or down and operates the open/close unit, and a cover unit coupled to the cylinder and the head unit to allow the head unit to move up or down therein. Thus, it is possible to generate and provide soft and minutely uniform foam.

Abstract: An inverted dispenser pump is used to dispense foam. The dispenser pump includes an air cylinder with an air piston to pump air to form the foam along with a liquid cylinder that has a liquid cylinder piston to pump liquid to form the foam. A conduit shell is received over the liquid cylinder in order to draw fluid when in an inverted state. An intake valve member is received around the opening of the conduit shell. The intake valve member has a seal flap configured to seal against the conduit shell opening in order to reduce flow restrictions of liquid drawn into the liquid cylinder.

Abstract: In the present invention we replace a standard dip tube in a fluid dispenser with a hollow fiber membrane that passes liquid in preference to gas. Under the influence of a pressure differential, any liquid in contact with any portion of the hollow fiber membrane passes through the wall of the membrane and travels internally along the length of the membrane to a dispenser head. The fluid dispenser is thereby capable of operating in substantially any orientation and is effective to dispense substantially its entire contents.

Abstract: A dispenser for use with a liquid product including beads which are rupturable to release additives when rubbed between the hands of a user. The dispenser includes a discharge head reciprocable between pressure and return strokes, and a valve assembly for respectively allowing and preventing liquid product from being discharged during the pressure and return strokes. The valve assembly includes ribs for guiding movement of a check valve disposable in respective valve open and closed positions in which the check valve is disposed out of and in contact with a valve seat. The valve assembly includes primary fluid passages for permitting passage of the liquid and beads into a pump cylinder, and secondary fluid passages for permitting displacement of the beads during translation of the check valve between the valve open to the valve closed positions for thereby preventing accumulation of beads between the check valve and its valve seat.

Abstract: The invention relates to a dispenser (10) comprising a pump housing (14) with an adapter (12) for a container that contains fluid. Said dispenser comprises an adapter housing (24) with a passage (20) and inlets (28) for the fluid, an inlet valve (30) that is located in an annular chamber (51) and a non-return valve (32) that is located in a valve chamber (34). The adapter housing (24) consists of an upper part (44) and a lower part (46), which form the annular chamber (51), that latter being centrally traversed by a connecting pipe (52). A base (50) of the annular chamber (51) contains fluid inlets (28) for the inverted position of the dispenser (10) and comprises a fluid-tight collar (60) that projects radially beyond the inlets (28). The inlet valve (30) is an annular, flexible elastic valve disc (31), which surrounds and seals the annular groove (58) and whose external edge lies on the fluid-tight collar (60), sealing the inlets (28).

Abstract: A fluid dispensing system includes a pump body configured to couple to a container. The pump body defines fluid inlet openings and a pump cavity. A shroud cover covers the pump body to draw fluid from the container. An inlet valve allows fluid from the container to enter the pump cavity through the fluid inlet openings. A plunger is slidably received in the pump cavity, and the plunger defines a fluid passage with a dispensing opening through which the fluid is dispensed. A shipping seal seals the fluid passage during shipping to minimize leakage of the fluid during shipping. An outlet valve is disposed inside the fluid passage to minimize the height of the fluid between the outlet valve and the dispensing opening so as to minimize dripping of fluid from the dispensing opening. The pump body includes a venting structure to normalize the air pressure inside the system.

Abstract: A fluid dispensing system includes a pump for pumping fluid from a container. The pump has a vent opening for venting air into the fluid in the container to normalize pressure inside the container as the fluid is pumped. An intake shroud is coupled to the pump, and the shroud includes a channel opening to draw fluid from the container into the pump in a straw-like manner. A baffle is positioned between the vent opening and the channel opening of the shroud to reduce ingestion of the air into the pump so as to reduce short or inconsistent dosing of the fluid when pumped.

Abstract: A tappet pump comprising a reduced number of components. The pump comprises a pump body, a piston, a tappet and an elastic implement which exerts its force on the tappet and on the piston by means of a unidirectional link defined by interdependent limit stops.

Abstract: Manually operated invertible pump for dispensing atomized liquids, the pump having a very compact structure and an aperture which can be intercepted by the pump piston to control liquid entry into the pump when this is in a downwardly inverted position.

Abstract: A product dispensing device includes a container having an opening and a retaining member in the vicinity of the opening. The container is configured to contain a product, and the retaining member defines a dosing cavity for containing an amount of product capable of being dispensed when the device is in an upright orientation. The retaining member comprises a peripheral sidewall. A portion of the device comprises an edge defining an orifice in flow communication with the container and the dosing cavity. At least part of the edge extends inside the peripheral sidewall and/or an extension of the peripheral sidewall at a non-zero distance therefrom. The orifice is positioned to define a maximum filling level of the dosing cavity.

Abstract: Manually operable pump for dispensing atomized liquids, the pump having passageways enabling air to enter the container on which the pump is mounted, when a vacuum forms in the container on dispensing liquid through the pump.

Abstract: The invention relates to an adapter (2) for a manually operated dispensing device (120) for a fluid that is/can be pressurized in a container. The dispensing device includes a housing (148) having a passage channel (30). A tubular adapter housing (34) connects the uptake tube (32) and the channel (30) of the housing (148) of the dispensing device (120). The adapter housing (34) has a connecting sleeve (42) for connection to the connecting nipple of the housing (148) and an uptake tube sleeve (44) for connection to the uptake tube (32). There are several inlets (46) for the fluid in the upside down position of the dispensing device. The adapter housing (34) defines at least one section of the inlets. An inlet valve (48) is defined within the adapter housing (34) for releasing the inlets substantially simultaneously when a pressure acts on the fluid in the container in the substantially upside down position of the container.

Abstract: Manually operable invertible pump for dispensing atomized liquids, the pump having a very compact structure and a flexible diaphragm valve for controlling liquid entry into the pump when this is in an inverted or partly inverted position.

Abstract: A double-acting pump for ejecting a product from a container, with a housing in which a piston with an axial bore is axially slideable and sealed by a first housing portion, with a hollow piston rod which extends the axial bore of the piston and is slideable in an opening of a closing cap of the housing and container. When an actuating head is actuated, it presses the piston against the force of a restoring spring toward a connecting pipe portion for an immersion pipe provided in the housing, so that a pressure is built up in a pressure chamber of the housing which presses a first valve closing piece in the connecting pipe piece against a first valve seat.

Abstract: A hand operated non-aerosol foam dispenser comprising a combined liquid pump and air pump for mounting at the top of a container of foamable liquid, the liquid pump having a liquid cylinder and a liquid piston defining between them a liquid chamber, the air pump having an air cylinder and an air piston defining between them an air chamber, and the liquid piston and air piston being reciprocable together in their respective cylinders by the action of a pump plunger which carries said pistons; an air inlet valve and liquid inlet valve being provided for the air chamber and liquid chamber respectively; an air discharge passage and a liquid discharge passage leading from the air chamber and the liquid chamber respectively, the air discharge passage and liquid discharge passage meeting one another for mixing the pumped air and liquid which passes to an outlet passage of the dispenser by way of a permeable foam regulation element; one or more vent openings being provided to admit air into a cap chamber and into

Abstract: An integrally formed container for complementary use with a mounting cup comprising a neck portion including an interior sealing surface adapted to contact an interior piston portion of a mounting cup and an exterior surface including a lower snap surface adapted to engage the upper snap surface of an exterior snap flange on the mounting cup and a rim surface forming a mouth and disposed between the interior sealing surface of said neck portion and the exterior surface of said neck portion.

Abstract: An inlet valve (10) of a dispenser (1) or thrust piston pump, for highly reliable and speedy valve function in all vertical or inclined positions of the dispenser (1) includes, nearer to the pump chamber (20), a valve ball (35) operating in response to pressure and, further away from the pump chamber (20), a valve ball (36) subject to the force of gravity. Ball (36) pushes ball (35) out of its seat (33) in the event that it is firmly seated in the seat (33) due to a vacuum in the reservoir (9) when the dispenser (1) is turned upside down. The seats (33, 34) for the two valve balls (35, 36) are formed by a radially deformable wall (54), which can be tightly and sealingly supported against balls (35, 36).

Abstract: Dispensing assembly for dispensing two liquid components, comprising an outer piston pump concentric with an inner piston pump provided with resetting means, in which the inlet and outlet of the piston chambers comprise pre-tensioned non-return valves, in which the inner piston has a small free stroke relative to the other parts of the assembly, a stationary stroke limiting part with a stop is present in the outer piston chamber of the outer piston pump, which stroke limiting part under friction can interact with a stop on the inner piston, in order to limit the movement distance thereof and permit the movement thereof only under friction, and the outer piston and the inner piston comprise carrier bevelled collars which can interact in a sealing manner with each other and form an active non-return valve for the outlet of the outer piston chamber.

Abstract: A dispenser includes a container defining a main reservoir for holding a liquid product; a nozzle assembly connected to the container for dispensing liquid from the container; and an inner tank member disposed in the container and defining an active reservoir for holding the liquid product. The inner tank member includes an inlet communicating the active reservoir with the main reservoir, and the nozzle assembly is communicated with the active reservoir.