Abstract: An improved structure of a soap dispenser head to deliver a fixed amount of soap liquid and to prevent any leakage of soap liquid, essentially comprised of a graded trough on either side of a soap delivery head of a soap dispenser; a soap liquid inlet being provided on either side of the graded trough; a soap liquid outlet being provided at the bottom of the graded trough; a piston penetrating the graded trough, a cap being provided on the top of the graded trough, a ring seat being provided at the bottom of the piston ring of the piston; a coil being inserted on to the bottom of the ring seat, a stop being provided at the lower end of the piston; a retaining hole is provided at the lower end of the piston, a hole being provided on the stop for the retaining to penetrate through the stop and inserted into the retaining hole in the piston thus to position the stop in the lower end of the piston so that when the soap dispenser is depressed for the piston in the soap delivery head to move downward, the ring seat

Abstract: A self-contained viscous liquid dispenser includes a housing defining an internal liquid reservoir, and an opening defined through a front surface of the housing. An insert member is fitted through the opening, extends into the reservoir, and defines an internal pump chamber having a back end open to the reservoir and a front end open to the outside of the housing. A pump cylinder is slidably disposed and retained in the chamber. The pump cylinder is movable within the pump chamber from a rest position to a pressurizing position to pressurize and dispense liquid within the pump chamber through a delivery channel and out a dispensing orifice in the pump cylinder. The pump cylinder may be a multiple component device.

Abstract: A dispensing head for dispensing a product, for example, a cosmetic product, includes a body configured to mount the head on a container containing the product, an actuator that allows a dispensing element on the container to be actuated and an outlet configured to be placed in flow communication with the dispensing element to deliver a dose of product from the outlet. The dispensing head further includes a cover element configured to cover the outlet when the dispensing head is in a storage position. A removable cap is configured to be placed on the body, the cap including a portion that engages with the cover element to retain the cap on the body.

Abstract: A liquid discharging apparatus having a simple construction and capable of reducing the number of components with high efficiency is provided. The liquid discharging apparatus for discharging a liquid contained in a container from a nozzle head that is mounted on a cap attached to an opening of the container and is movable up and down together with a piston is characterized in comprising a virgin seal body positioned around a piston engagement hole formed on the cap and integrated with the cap so as to be separable from the cap by way of a thin portion, a vertical slit defined in the virgin seal body and having a pinch portion provided with a slip stopping portion at the opened portion thereof, wherein the nozzle head is fixed to its top dead center by the virgin seal body when the liquid discharging apparatus is not used.

Abstract: A dispensing head for dispensing a product, for example, a cosmetic product, includes a body configured to mount the head on a container containing the product, an actuator that allows a dispensing element on the container to be actuated and an outlet configured to be placed in flow communication with the dispensing element to deliver a dose of product from the outlet. The dispensing head further includes a cover element configured to cover the outlet when the dispensing head is in a storage position. A removable cap is configured to be placed on the body, the cap including a portion that engages with the cover element to retain the cap on the body.

Abstract: A valve ball serving to come into leaktight contact against a valve seat so as to close off selectively a communication passageway for a fluid, said valve ball comprising a substantially spherical core and a covering surrounding said core, said covering defining a deformable surface suitable for adapting its shape to accommodate any surface imperfections of the valve seat.

Abstract: A dispenser device without any air intake, such as an airless pump, for dispensing a fluid substance, the device comprising a dispensing chamber (14) of variable volume, which chamber is provided with an inlet (12) equipped with an inlet valve member (51, 53), and is provided with an outlet equipped with an outlet valve member, the dispenser further comprising a piston (3) for causing the volume of the dispensing chamber (14) to vary, closure elements (51; 52; 55; 63) being provided to close off the dispensing chamber (14) in airtight manner, substantially at its inlet (12), prior to it being used for the first time, the device being characterized in that the closure elements are formed by the inlet valve member (51, 53).

Abstract: A pump of type comprising a moving member mounted to move relative to a support, the moving member having a central duct into which the substance to be dispensed penetrates via at least one opening, the support co-operating with the moving member to define a variable volume pump chamber around said central duct, the pump also having a diaphragm having a central portion in which said central duct is inserted, the diaphragm being organized in such a manner as to isolate the pump chamber from the opening(s) of the central duct when the volume of the pump chamber increases and the substance is sucked into it. At least one of the central duct and the central portion of the diaphragm includes an annular bulge that is suitable, when the volume of the pump chamber increases, for bearing in leakproof manner on the other of the central portion and the central duct of the diaphragm, so as to isolate the pump chamber from the opening(s) of the central duct.

Abstract: An anti-clog pump sprayer has a cover mounted for independent reciprocation on a plunger head, the cover having a cupped spring biased portion covering the discharge orifice on the head to avoid clogging on product drying, and being lifted off the orifice during the relative shift for uncovering the orifice in readiness for spraying. The sprayer may also have a product retraction device on the plunger head in communication with the discharge orifice, a projection on the underside of the cover top wall for actuating the device at the commencement of the plunger return stroke for creating a slight sub-atmospheric pressure for suctioning any residual product inwardly of the orifice to thereby avoid clogging.

Abstract: The invention relates to a pump of the type including a moving member mounted to move relative to a support, the moving member having a central duct in which substance to be dispensed penetrates via at least one opening, the support co-operating with the moving member to define, around said central duct, a pump chamber of variable volume, said pump also having a membrane with a central portion in the form of a sleeve that is open at its top end and closed at its bottom end, said central duct being inserted in said central portion, the membrane being organized to isolate the pump chamber from the opening(s) of said central duct while the volume of the pump chamber is increasing and substance is being sucked into it. At least one of the membrane and the central duct is shaped to prevent a leakproof annular zone forming between the membrane and the central duct which would prevent the substance contained in the pump chamber from flowing via said central duct while the volume of the pump chamber is decreasing.