摘要:
A vented pump includes a pump housing with a fluid retention cavity, a fluid inlet, and at least one vent opening therethrough. A pump dome is secured to the pump housing to form a dome cavity. Movement of the pump dome allows material from the fluid retention cavity to enter the dome cavity through the fluid inlet, and selectively allows ambient air to enter the fluid retention cavity through the at least one vent opening.
摘要:
Exemplary embodiments of vented refill units and dispensers having vented refill units are disclosed herein. An exemplary refill unit includes a non-collapsing inverted container. The container has a neck located at the bottom of the container. A pump is secured to the neck. The pump has a housing that has a cylindrical outside surface. In addition, the housing has an attachment mechanism for attaching the pump to a venting insert. The venting insert has a cylindrical inside surface and a cylindrical outside surface. At least a portion of the venting insert is located within the neck. An air passage is located between the pump housing and the cylindrical inside surface of the venting insert. One or more apertures are located through the venting insert. A one-way air inlet valve is located proximate the one or more apertures.
摘要:
A pump 1 for dispensing a cosmetic product, having a pump body 10 and a diaphragm 20. The pump body 10 and the diaphragm 20 are rigidly interconnected and together define an interior space 19 in the pump 1. The pump 1 is equipped with an intake valve 222, which is designed to regulate the intake of the cosmetic product into said interior space 19. The pump 115 is equipped with an outlet valve 201, which is designed to regulate the expulsion of the cosmetic product from said interior space 19. The dispensing pump 1 is designed such that the diaphragm 20 being pushed down causes the intake valve 222 to close and the outlet valve 201 to open, and such that the diaphragm 20 being released causes the outlet valve 201 to close and the intake valve 222 to open.
摘要:
An exemplary refill unit for a dispenser includes an inverted non-collapsing container for holding a liquid. A pump housing is secured to the bottom of the inverted non-collapsing container. The pump housing includes a pump chamber for pumping fluid out of the inverted non-collapsing container. The pump housing includes an annular venting chamber. The annular venting chamber has a floor with an opening therethrough. A vent valve is located within the venting chamber. The vent valve has a first wiper seal in contact with a wall of the annular venting chamber.
摘要:
A lid (2) for a reservoir (1) to be connected to a liquid spraying device, comprising a ventilation hole (3); a flexible tube (4); and a valve (5), wherein the combination of the ventilation hole (3), the flexible tube (4), and the valve (5) forms a ventilation system which allows an air movement from the outside of the reservoir (1) via the ventilation system to the inside of the reservoir (1) while it blocks the movement of a liquid (6) from the inside of the reservoir (1) via the ventilation system to the outside of the reservoir (1).
摘要:
A portable chargeable spray bottle is disclosed comprising a body comprising an upper part and a lower part; a spray nozzle assembly equipped on the upper part, and a liquid charging structure placed at the bottom part. It is further comprises an exhaust structure comprising an exhaust hole penetrating the body, whereby exhaust air flow can escape via the exhaust hole to outside the bottle.
摘要:
A dispenser cap (10) for a liquid container having an opening, the cap (10) comprising a means for attachment (30) to the container, a housing (12) inserted into the opening and comprising a liquid inlet (14), a channel and a liquid outlet (16), the channel comprising a moveable seal (18) defining an outlet-side liquid volume (24) and an inlet-side liquid volume (26), the moveable seal (18) is moveable from a first position to a second position towards the liquid outlet (16) by increasing the inlet-side liquid pressure, thereby causing a dispensable volume of liquid flow out of the outlet (16), the moveable seal (18) also comprising a liquid outlet seal means (22) to seal the liquid outlet when the moveable seal (18) is in its second position, thereby preventing further flow of liquid out of the outlet (16), the cap (10) also comprising a dispensable liquid volume adjustment means (32,34) to adjust the fixed volume of dispensable liquid.
摘要:
Exemplary embodiments of pumps, refill units and dispensers are disclosed herein. Some embodiments include a container for holding a fluid and a pump housing secured to the container. The pump housing includes an annular collar for securing the pump housing to the container. The pump housing includes an air chamber and a vent valve located at least partially within the air chamber. One or more air passageways are provided in the collar for providing air to the air chamber. A compressible liquid pump chamber is also located in the housing. The exemplary embodiment includes a liquid inlet valve for allowing liquid to flow from the container into the compressible pump chamber; and a liquid outlet valve located downstream of the pump chamber.
摘要:
A fluid application system includes a diluent reservoir, a chemical container, a sprayer housing, a manifold located in the sprayer housing, and a pump assembly in fluid communication with an outlet of the manifold. The manifold includes a diluent inlet in fluid communication with the diluent reservoir, a chemical inlet in fluid communication with the container, a mixing chamber in fluid communication with the diluent inlet and the chemical inlet and the outlet of the manifold. The pump assembly draws a mixture of the chemical and the diluent from the manifold and sprays the mixture of the chemical and the diluent from the nozzle.
摘要:
A dispenser for dispensing portions of flowable materials has a piston that is advanced along a dispensing chamber by rotation of a spindle that passes through the piston. A stop may limit travel of the piston to control the volume of flowable material dispensed. The stop may be adjustable. In an example hand-held dispenser the spindle is rotated by a rack and pinion mechanism that can be operated with one hand. The dispenser may be used, for example, for dispensing portions of condiments, sauces or the like.