Abstract:
A self-sealing nozzle for a liquid dispensing device having a valve and a discharge port, the discharge port including a plug that may be bulbous in shape, the plug being retained by a retainer at the end of the discharge passage leading to the port. An elastomeric seal has an annular inner surface that seals against the plug when liquid is not being dispensed by said valve, but expands and forms a passage around the plug when liquid is being dispensed by said valve.
Abstract:
A fluid storage container includes a container main body 10 which stores fluid inside, a discharge outlet member 20 which is formed at the opening 11 which is formed on the container main body 10, a tube member 30 which has a flow path 31 which reaches the discharge outlet member 20 from the base of the container main body 10, and a piston member 40 which moves an inside cylinder within the container main body 10. This fluid storage container stores fluid in the space that is formed between the base of the container main body 10 and the piston member 40. In addition, this fluid storage container provides, within the discharge outlet member 20, an inflow valve structure 50 which flows in fluid that has been stored in the container main body 10 and an outflow valve structure 60 which flows out to the outside fluid that has been entered with the inflow valve structure 50.
Abstract:
A fluid-dispensing pump 1 includes a cylinder 11, a piston 12 which can reciprocate inside the cylinder 11, a coupling tube 13 for coupling the nozzle head 2 and the piston 12, a coil spring 17 for giving momentum to the piston 12 in a direction of sending it up via the coupling tube 13, an inflow valve mechanism 14 for introducing a fluid stored inside the fluid-storing portion 4 into the cylinder 11, an outflow valve mechanism 15 for dispensing the fluid from the nozzle head 2, and a leakage prevention mechanism 18, which prevents a fluid having flowed into the cylinder 11 from leaking out to a fluid flow path 131 of the coupling tube 13 when a pressure is not applied to the nozzle head 2.
Abstract:
The present invention is a cosmetic or dermatological preparation for use with a dispenser system that includes at least 0.01% by weight of one or more hydrocolloids. The preparation is particularly suitable with a dispenser comprising an essentially cylindrical container and an inner container wall for housing a cosmetic or dermatological preparation; a follow-up plunger on a base side of the dispenser, which is capable of being slidably displaced on the inner container wall under the pressure of the ambient atmosphere; a head section on a top end of the dispenser that can be slidably displaced in relation to the container and that comprises a dispensing channel, the dispensing channel capable of being connected in a communicating manner to the container; a manually actuable delivery device comprising a variable-volume delivery chamber, a delivery element that can be displaced longitudinally in relation to the container and the head section, comprising a delivery plunger that can be slidably displaced within the delivery chamber and a delivery stem connected to the delivery plunger, and a delivery channel circumferentially enclosed by the delivery stem and comprising a delivery-channel inlet opening communicating with the delivery chamber and a delivery-channel outlet opening. The delivery channel outlet opening is capable of being moved into an open position relative to the dispensing channel by displacing the delivery element.
Abstract:
An ophthalmic delivery device includes a body defining a fluid reservoir and a pump in fluid communication with the reservoir. The delivery device also includes a nozzle that includes a dosage chamber for holding a dosage of fluid, a valve seat, and a valve cover. The valve cover extends about the valve seat and forms an interface therebetween and the valve seat includes an outlet aperture. The interface is in fluid communication with the outlet aperture and the dosage chamber, and at least part of the valve cover is movable between (i) a closed position with the valve cover engaging the valve seat to close the interface and form a fluid-tight seal therebetween, and (ii) an open position with at least part of the valve cover spaced away from the valve seat in response to fluid flowing through the outlet aperture at a pressure greater than a valve opening pressure to allow the passage of pressurized fluid therebetween. The valve seat and the valve cover are dimensioned to dispense the dosage of fluid through the interface at a velocity of equal to or less than 6 meters per second.
Abstract:
A collapsible dispensing system for flowable materials is disclosed. A conical one-way valve assembly of coaxially conforming parts is attached to a collapsible container. An enclosing sleeve seals an elastomeric sheath to a valve body. Flowable materials are dispensed under positive pressure without back flow of external gases and contaminants, even after repeated dispensing of container contents. This enables flowable materials that are susceptible to oxidation and contamination to be reformulated without antioxidants and/or preservatives. The collapsible multiple dose dispensing system maintains the integrity and sterility of flowable materials, thereby prolonging product use life. The system takes advantage of a conical design, allowing for quicker, easier and cheaper manufacturing and assembly.
Abstract:
In existing vaporizers the medication passes through unsterilized passages which preclude heir use to administer sterile medications. The present invention therefore provides a device for dispensing a vaporized spray of sterile medicated liquid. It uses a combination atomizing and pressure release valve in which there is a flexible membrane with an aperture, and a plug extending upwardly through the aperture and having a surface against which the membrane is biassed in the closed position, the membrane lifting off the surface of the plug in the open position to thereby open the aperture.
Abstract:
A manual pump dispenser which includes a reciprocable pump piston has a discharge valve snap-fitted to the pump body for the outletting of the liquid product from the pump chamber, the discharge valve being formed of an elastomer material and comprising a conically-shaped valve element at one end sloping outwardly toward the discharge passage, the valve having a non-reentrant element at its opposite end for snap fit engagement with a transverse support web within the pump body through a coaxial opening thereof, the conically-shaped valve element seating against a circular valve seat having a complementary taper to that of the valve element.
Abstract:
An aerosol tip mechanism for an aerosol-type dispenser for dispensing liquid content has a flexible outer shell, a rigid cap portion composed of lower and upper portions, and a rigid nozzle portion having a rigid shaft received within the outlet portion of the flexible outer shell. The rigid shaft interfaces the outlet portion of the outer shell, forming a first normally-closed one-way valve. The lower and upper portions of the rigid cap portion form boots adapted to receive an outlet portion of the flexible outer shell, the boots thereby constraining a lateral motion of the outlet portion of the outer shell, and symmetrically centering the outlet portion around the rigid shaft of the nozzle. The rigid nozzle portion includes a plurality of liquid channels for delivering liquid from a reservoir to a swirling chamber defined within the rigid cap portion, which liquid channels are configured to minimize energy losses of the liquid and promote a more homogeneous fluid particle size in the dispensed aerosol. The aerosol tip mechanism provides for long-term sterility of the stored fluid, which in turn allows for preservation of the sterility of non-chemically preserved formulations, which may be in the form of suspension or liquid gels.
Abstract:
The invention relates to a device for packaging and dispensing substances in the form of a liquid, a gel, or a paste form, the device comprising a receptacle having a plurality of compartments for separately storing at least two substances, each compartment having an outlet for the substance, the device further comprising fixing means for fixing a rotary dispensing head on the receptacle to enable the substance contained in a selected compartment corresponding to a predetermined angular position of the head to be dispensed. Said dispensing head has a single dispensing channel provided at its outlet end with a non-return valve suitable for opening under the effect of thrust from upstream substance, and it is shaped to establish selective communication between the outlet of said selected compartment and said dispensing channel and/or to exert selective action on means for extracting substance and associated with said selected compartment.