The device (100) for packaging and dispensing a product, liquid or in gel form, optionally for an ophthalmic application, comprises a container (1) containing the product to be dispensed by a dispensing head (7), as well as a refilling and filtering assembly for the air entering the container (1) after a dispensing, the dispensing head delimiting one or more dosing chambers (5) and including at its end a flexible part (7) which can be actuated to allow the release of the dose of product in a compressed state of said chamber (5). The air refilling and filtering assembly has a sterilizing filter (11) which cooperates with a check valve (12), this assembly (11, 12) being typically located in a central or inner portion of the head (7). The supply of outside air is accomplished by means of a channel (16) leading to an outer orifice (10) able to be obturated by a cover (15).

A device for dispensing drops of a liquid or semi-liquid product is provided having an axial tube (12) which has an elastically deformable outer jacket defining an internal space (16) enclosing the product and a neck (14) which defines an open internal passage for the passage of the product. A system for generating drops has an elastic deformable piece (22) mounted inside the neck of the tube around a rigid member (24). The elastically deformable piece has an opening end part (30b) situated outside of the neck and through which the product can exit from the system in case of pressure on the outer jacket. The opening end part (30b) is deformed into a first position when it is mounted to bear on an opening end (36) of the rigid member when no pressure is exerted on the jacket of the tube.

A squeeze sprayer for dispensing fluid product as a spray or spray mist includes a squeeze bottle and a squeeze sprayer closure attached to the squeeze bottle. The squeeze sprayer includes a cap which defines a chamber for receipt of air and fluid and further defines an outlet. Further included as a part of the squeeze sprayer is a valve which is assembled into the cap and a dip tube which is received by the cap. The dip tube is constructed and arranged to provide air to the chamber and the squeezing of the bottle forces air and fluid into the chamber and from there through the outlet to be dispensed as a spray or spray mist. A second embodiment provides an upright squeeze sprayer with a unique orifice cup. A third embodiment includes a directional adapter.

A sprayer device with a trigger operated pump is operative for pumping and spraying liquid from an attached liquid container. The trigger sprayer includes valve body provided with a base portion that is configured to be mounted to the neck of the liquid container and a delivery nozzle from which the liquid is sprayed. A fluid flow path extends from the base portion to the delivery nozzle. A pumping chamber is in fluid communication with the flow passage and there is a vent opening between the pumping chamber and the interior of said base. A piston with spaced inboard and outboard seals is movable in the pumping chamber and the vent opening is located between the seals. A check valve is disposed between the vent opening and the interior of the base portion to prevent liquid from the container from backflowing into the pumping chamber during shipment and handling.

The invention is directed to a dispensing device comprising a rigid container, a flexible bladder, and a rigid stopper. The container is adapted to contain a product to be dispensed. The flexible bladder is disposed below and in fluid communication with the container. The bladder comprises a top end, a sidewall extending downwardly from the top end and terminates in a spout. The bladder is in a liquid tight engagement with the container and the product contained in the container is adapted to flow into the bladder. The rigid stopper is disposed within the flexible bladder and comprises a top end, and at least one sidewall extending downwardly from the top end, and terminates in an open bottom end. The stopper comprises a plurality of through holes.

The present invention discloses a fast water stopping structure, which comprises a body, the body is provided with an internal watercourse, the body is also provided with a water outlet hole connected to the watercourse, the inlet end of the water outlet hole is provided with a water stop plate, the water stop plate is provided with a crack. The structure quickly stops water from the water outlet hole after the water flow is shut off to prevent water from dripping down.

Some embodiments are directed to a valve, including a rigid end piece that defines a center; a rod at the center of the end piece defining an axis; and a flap, wherein the flap is in one piece and has a flexible wall situated opposite a free end of the rod, the flexible wall is perforated by an orifice concentric with the end of the rod, the orifice has a contour substantially homothetic with that of the contour of the end of the rod in a plane perpendicular to the axis of the rod, the orifice has a surface below a projected surface of the end of the rod in the plane, the flap is connected to the end piece by a non-deformable fixed connection, and the flexible wall presses against the end of the rod at any point of its surface in contact with the end.

The present invention relates to a foundation container comprising a pump having convenient pressurization and, more specifically, to a foundation container comprising a pump having convenient pressurization, wherein the outer wall of a pump main body is formed in the shape of an inwardly concave janggu (a Korean traditional hourglass drum), thereby not delimiting a pumping method to vertically pressurizing the center of a pump upper body, but facilitating the discharge of the contents even though any region of the pump upper body is pressurized. In addition, the present invention relates to a foundation container comprising a pump having convenient pressurization, wherein productivity is improved due to easy mass production by integrating a pump upper body and a pump main body in one body and forming a discharge valve and a suction valve in the same shape so as to simplify the structure of a pump.

A portable pump by which liquid may be horizontally pressed out, comprising a liquid storage container, a pump head being provided at a side of the liquid storage container, and a liquid suction device that is connected to the pump head being provided within the liquid storage container. The liquid suction device comprises a liquid suction chamber, a spring, a piston, and a liquid outlet pipe that is connected to the pump head. The liquid suction chamber is provided with a liquid inlet pipe and a fixed end of the spring, check valves being provided within the liquid outlet pipe and the liquid inlet pipe. The piston is sleeved with the liquid outlet pipe and provided with a through hole that matches an opening of the liquid outlet pipe. The portable pump can provide better sealing and avoid a liquid leakage gap in a pressed liquid outlet structure.

A dispensing head including a cap having: an outer wall with at least one part referred to as the shell part and at least one part referred to as the pressing part that is made of a material more flexible than the at least one shell part; at least one outlet; an insertion orifice, a stopper, the stopper being mounted in the cap by being inserted into the cap from the insertion orifice side and in an insertion direction, at least one assembly, each assembly including: an inlet, passing through the stopper; a deformable pocket, an interior volume of which is intended to contain the fluid of this assembly and is delimited at least in part by the at least one pressing part of the cap; preferably a feed duct and/or a dispensing duct.