A dispenser (10) to deliver a liquid medication. The dispenser (10) includes a hollow reservoir body (11) providing an interior that receives the liquid. The body (11) has a threaded neck (13) that receives a cap (58). The cap (58) includes a pump assembly (17) and a nozzle member (29). The pump assembly (17) includes a vent one-way (48) that provides for the delivery of air to the interior of the reservoir (11).

Disclosed is a metering pump comprising a housing that extends from an inlet region to an outlet and surrounds a piston which is urged into a starting position by a compression spring. In the metering pump the stop limiting the lifting stroke of the piston is formed by the lower end of the piston coming in contact with the inlet portion.

The present disclosure relates to a two-way pumping device for consumption of a residual amount of a liquid. The two-way pumping device includes a vessel, a body portion including first and second chambers for storing a liquid, a suction pipe extending to the outside of the body portion, a first bearing for opening and closing the suction pipe, a pump portion including a head portion protruding outside the body portion, a first piston slidably moving in the first chamber, a second piston slidably moving in the second chamber, a first discharge portion that discharges a fluid in the first chamber to the outside, a second discharge portion that discharges a fluid in the second chamber to the outside, a spring that applies an elastic restoring force to the pump portion, and a suction portion capable of causing a liquid to flow into the second chamber.

A pump system may include a blown-in dip tube connected to a valve body and having a connection which may include an improved blown-in dip tube connector having one or more of a lip for sealing with a blown-in dip tube, a seal ring configured to mate with a blown-in dip tube and seal therewith, a dip tube lock for mating with a blown-in dip tube, or an o-ring for providing an improved seal with a blown-in dip tube.

A dispenser and applicator head (T1) having a connection stub (1) made of a substantially-rigid first material; an assembly core (2) made of the same material; a flexible link section (S) that interconnects the connection stub and the assembly core; an applicator pad (5) made of a heat-transfer material to impart a cold sensation on contact with the skin and mounted on the assembly core; and a dispenser channel (6) that passes through the stub, the link section, the core, and the pad in which it forms a dispenser orifice. The link section includes a flexible bridge (3) made of the same material as the stub and interconnecting the stub and the core; and sheathing (4) made of an elastically-deformable material, the sheathing surrounding the bridge, at least in part, and interconnecting the stub and the core.

The ejection head includes a pressing member; a nozzle tip that is fitted to a concavity; and an insert member. The insert member includes: a concave portion that forms a filling space for the content medium; at least one through hole formed on a circumferential wall; and a long groove that extends from the through hole to the nozzle tip. The insert member has a front end having an outer circumferential edge formed as an annular inclined surface, and the front end is formed with a bulging portion. The bulging portion is formed with a plurality of radial grooves and a cylindrical groove. At least one through hole is located in a position that is circumferentially offset from the plurality of radial grooves.

Fluid product dispenser comprising: a reservoir (R) having a neck (1), a dispensing head (T) mounted axially on the neck (1) and comprising a dispensing member (P), and a fastening ring (F) engaging both the neck (1) and the dispensing member (P), the fastening ring (F) comprising a skirt (2) including a plurality of internal latching projections (211), characterised in that the neck (1) defines externally a plurality of horizontal latching shoulders (130) oriented downward and a plurality of release ramps (112), the latching projections (211), initially engaged below the horizontal latching shoulders (130), being constrained radially outward on the release ramps (112) by rotation of the skirt (2) around the neck (1), thus releasing the latching projections (211) of their latching engagement from below the latching shoulders (130).

A dispensing pump (1000) includes a polymer compression spring (1048), base vents (1060) and a flow baffle (1092). The dispensing pump includes a pump base (1002), and a dispensing head (1004) having a piston stem (1034). The polymer compression spring assembly includes a slotted tubular spring element (1048) and first and second loading cones received at opposing ends of the slotted tubular spring element. The venting ports allow air to escape when capping the container after filling and the flow baffle reduces or prevents the product from being pulled into the pump accumulator before residual air (headspace) has been evacuated from the container during the initial priming strokes.

One aspect of the invention provides a pump cap that includes: a cylinder having an interior space into which a content may be drawn; a piston configured to move up and down within the interior space and having an inflow hole formed therein that connects to the interior space; a valve configured to move together with the upward and downward movement of the piston, while maintaining contact with an inner perimeter of the cylinder and an outer perimeter of the piston, so as to be capable of closing the inflow hole; a rod that is coupled to an upper portion of the piston, has an inside connecting with the inside of the piston, and protrudes to the outside of the cylinder; a shoulder coupled to an upper portion of the cylinder; and an elastic member that has one end contacting the shoulder and another end contacting the rod and is configured to provide an elastic force for pushing the rod upward, where the elastic member may include a deformable flexible portion.

A fluid pump apparatus includes a multi-chamber pump mechanism, with an actuator having a nozzle portion defining a nozzle chamber that has a controlled opening through a discharge valve, which is calibrated to open in response to a fluid pressure in the nozzle chamber exceeding the threshold pressure.