A dispensing pump includes a polymer compression spring assembly. The dispensing pump includes a pump base, and a dispensing head having a piston stem. The polymer compression spring assembly includes a slotted tubular spring element and first and second loading cones received at opposing ends of the slotted tubular spring element. The first loading cone is fixed relative to the pump base while the second loading cone is axially movable with the piston stem and dispensing head. The tubular spring element is disposed coaxially about the piston stem between the cones. When the dispensing head is compressed, the loading cones axially compress toward each other whereby the slotted tubular spring element radially expands to create an opposing contraction force, and in turn, an axial extension force. When released, the spring element elastically contracts to its at rest shape, returning the loading cones and dispensing head to their at rest positions.

A container closure can include a collar, an actuator, and a biasing element. The collar can be configured to couple to a container. The collar can have a container facing surface and a second surface opposite the container facing surface. The actuator can be movable relative to the collar from a first position to a second position. The actuator can be in fluid communication with a cavity defined by the container such that the actuator dispenses material out of the container as the actuator moves from the first position to the second position. The biasing element can have a first portion coupled to the actuator and a second portion coupled to the second surface of the collar, the biasing element configured to bias the actuator toward the first position.

A pump dispenser having a bottle with a neck and a pump assembly. The pump assembly includes an actuator, a closure connected to the actuator and coupled to the neck of the bottle, a dip tube, and a dual chamber pump. The dual chamber pump includes a piston assembly, a sealing cap, and a housing, which includes a pump chamber, a storage chamber having a cavity, and a core. The sealing cap is rigidly connected to the core and closes the storage chamber at a lower portion such that the substance to be released remains stored in the storage chamber cavity. When the actuator is pushed down for a first time by a user, a piston assembly moves to push down a connecting stem, which pushes down the sealing cap to open the storage chamber for releasing the substance contained in the storage chamber from the bottle.

A ring (10) for arranging around a valve body (21) of a fluid dispenser valve (20) that is mounted by means of a fastener capsule (50), such as a crimpable capsule, on a reservoir (1) containing fluid to be dispensed, said ring (10) being made as a single piece including at least one inner portion (100, 110) that co-operates with said valve body (21), and a radial flange (11) that forms a neck gasket that extends between the neck of the reservoir (1) and the fastener capsule (50).

A manual pump (P) having a pump body (B) defining a slide cylinder (F) for a piston (K) secured to an actuator rod (S); a pump chamber (C) and an outlet valve (V) arranged between the pump chamber (C) and a dispenser orifice (O) so as to dispense the fluid from the pump chamber (C). The pump includes an inlet valve (2, 12) arranged between the pump chamber (C) and an inlet (I) of the pump (P) to take the fluid into the pump chamber (C) from the reservoir (R), the inlet valve having a movable member (2) that selectively bears against a valve seat (12), a return passage (23) enabling a fraction of the fluid that is put under pressure in the pump chamber (C) to escape therefrom without passing via the outlet valve (V). The return passage (23) creates a lack of sealing at the inlet valve.

The present invention relates to a pump head for a metering device for a metered dispensing of a fluid. The pump head can thereby be fitted on a storage container, for example a bottle, which is designed for storing the fluid to be dispensed. Pump head and storage vessel together thereby form the metering device according to the invention. The pump head is distinguished by including a passage for air, by means of which air from outside can be transferred into the storage vessel during the pumping process for pressure compensation. The present invention relates in addition to purposes of use for the pump head and the metering device.

The present invention provides a manually-operated spray pump for discharging a predetermined amount of content by downwardly pressing a manually-operated button having a nozzle, and sealing the content therein by blocking a passage of the nozzle after discharge, wherein the manually-operated button comprises: a button main body coupled to a pump main body so as to communicate with a flow passage of the pump main body, and having an opening, which communicates with the flow passage so as to lead to the outside, formed on the outer surface at one side thereof; an elastic opening-and-closing member mounted on the flow passage of the opening, and opening the opening only when the content is discharged and closing the opening before and after discharge; and a cap member for mounting the elastic opening-and-closing member in position in the opening of the button main body.

A discharging device for the discharge of liquid media is specified, with a pump chamber that comprises an inlet opening and an outlet opening, and with a piston that is displaceable in the pump chamber. The object is to be able to dispense a medium with high accuracy using the discharging device. For this purpose, the piston comprises a projection which enters the inlet opening after a predetermined stroke of the piston.

The present invention relates to a metering pump for a metering device, the metering pump being connectable to a storage container. The metering pump thereby comprises a non-return valve which has sealing elements on the base-side, which sealing elements enable internal sealing of the metering pump. In addition, the present invention relates to a metering device in which the metering pump according to the invention is connected to a storage container.

A foam dispenser utilizing components made from the same or similar materials that can be recycled in a single recycling process or stream includes a plastic spring system acting on spring cones formed in a piston rod and an accumulator, an air valve having multiple flanges to facilitate the flow of air into and out of the foam dispenser, and a liquid piston configured to improve the control of liquid flow through the foam dispenser and which is more easily manufactured.