A fluid pump includes a pump body having a pump inlet and a pump outlet, and a spring valve combination provided within the pump body. The spring valve combination includes a spring body having a first end portion, a second end portion and a spring section therebetween, which spring section is compressible in an axial direction from an initial condition to a compressed condition and is subsequently expandable to its initial condition; a first valve element provided at the first end portion of the spring body; and a second valve element provided at the second end portion of the spring body, wherein the spring body and the first and second valve elements are integrally formed. The first and second valve elements interact with an interior of the pump body to define a one-way inlet valve and a one-way outlet valve, respectively.

Bellow actuated pump devices for dispensing a product from a container may include a bellow and a base or a bellow, a base, and a valve having two or more valves wherein actuation of the bellow opens a discharge portion of the valve and dispenses a product and the de-actuation of the bellow opens an intake portion of the valve and refills the pump for the next actuation.

Provided is a case for liquid state cosmetics. The case for liquid state cosmetics includes a case body in which a liquid content is contained, a shoulder unit coupled to an upper portion of the case body and having a content discharge hole at a central portion thereof, a pumping unit inserted into the shoulder part and connected to the content discharge hole to discharge the content through pumping action due to elasticity, and a button unit coupled to an upper portion of the shoulder unit and connected to the pumping unit to operate the pumping unit so that the content is discharged by pumping action of the pumping unit.

A pump for dispensing a fluid product from a product container, includes a unitary pump body defining an axis and including a pump chamber, a pump inlet and a pump outlet. The pump chamber is collapsible over an axially directed pumping stroke from an initial condition to a collapsed condition and is biased to return to its initial condition in a return stroke. An axially compressible spring is arranged to at least partially support the pump body during its collapse.

The invention concerns a device (1; 100) for dispensing fluids (L), comprising means (3) for coupling it with a container (C; C) holding the fluid (L) and comprising: an outlet duct (63; 163) for the fluid (L); a collapsible chamber (60; 160) defined at least partially by an elastically yielding portion of an actuator element; first valve means (25; 125); second valve means (48; 148). One between said first valve means (25; 125) and second valve means (48; 148) comprises a movable element (47; 147, 157) belonging to the actuator element (40; 140). The invention concerns also a system for dispensing fluids (L), comprising a container (C; C) and a device (1; 100) as described above.

A pump for dispensing a fluid product, able to be mounted on a container of the flexible tube or rigid flask type, includes a variable-volume metering chamber at least partly defined by a membrane deformable between an initial state in which the volume of the metering chamber is maximum and a deformed state in which the volume of the metering chamber is minimum. The pump also includes a valve for admitting the fluid product to the metering chamber. The pump further includes a valve for discharging the fluid product from the metering chamber. Finally, the pump includes means for opening and closing the admission and discharge valves. Notably, the pump consists of a single molded piece.

The invention relates to a dosing device designed to equip a container including a deformable reservoir containing a product. The device includes an insert that includes a dosing chamber that can be deformed by pressure from the product coming from the reservoir. The dosing chamber includes a top valve for the intake of the product from the reservoir, a bottom valve dispensing the product, and a deformable body connecting the top valve and the bottom valve. The dosing chamber is configured such that, under pressure from the product coming from the reservoir, the top valve is closed by the deformation of a first portion of the chamber, the bottom valve remaining closed, whereupon, the bottom valve opens under the effect of the deformation of the body.

A fluid dispensing device having a flexible fluid pouch and a dispensing assembly, the dispensing assembly having a top piece and a bottom piece, the top piece having a flexible actuator including a flexible dome and a flexible flange extension, the bottom piece having a bottom portion of a pump chamber, a pump chamber inlet, a chamber inlet valve, and a bottom portion of an outlet valve, the top piece and the bottom piece mated together to form a pump chamber and an outlet valve, the device configured to allow bidirectional fluid flow through either or both inlet and outlet valves, and to dispense a volume of fluid that is less than the volume of the pump chamber. The flexible pouch may have a single opening or two openings. In the case of a single opening, the entire dispensing assembly is in the interior of the pouch. In the case of two openings, only the flexible dome extends to the exterior of the pouch. The outlet valve is configured so that the more pressure that is applied to the flexible fluid pouch, the more tightly the outlet valve seals.

A dispenser pump is constituted by a closure body (2), a diaphragm body (3) which forms a pump chamber with the closure body and optionally a top actuator (4) for pressing the diaphragm body (4). The diaphragm body has a deformable wall (35) formed integrally in the same polymer as its annular mounting portion (31). An inlet valve (5) through the floor (21) of the closure body has a flap (52) which is formed and hinged integrally with that floor (21). An outlet valve may also be formed in the same polymer, either integrally with the diaphragm body or as a separate component. The deformable wall of the diaphragm body is shaped to generate a restoring force itself without a separate spring, so that the entire pump may be made from the same polymer e.g. polypropylene and without metal components.

Method and apparatus are disclosed for methods and apparatus for application of washer fluid to vehicle cameras. An example vehicle includes a camera including a lens. The example vehicle includes a reservoir and a flexible housing defining a cavity fluidly coupled to the reservoir and including an outlet valve adjacent the lens. The example vehicle also includes a solenoid coupled to the flexible housing to affect a cavity pressure by flexing the flexible housing. The outlet valve opens upon the cavity pressure being greater than a predetermined threshold to spray the washer fluid onto the lens.