Abstract:
A multiple dose syringe has a first valve defining a first valve opening pressure and a second valve defining a second valve opening pressure. A storage chamber in fluid communication with the second valve stores multiple doses of a substance therein and includes an outlet for dispensing multiple doses of the stored substance therethrough. A compression surface is movable between first and second positions and defines a compression chamber between the compression surface and the first valve. Movement of the compression surface in a direction from the first position toward the second position dispenses substance in the compression chamber through the first valve and out of the syringe. Movement of the compression surface in a direction from the second position toward the first position causes substance to flow from the storage chamber through the second valve and into the compression chamber.
Abstract:
A foam assembly connectable to a liquid container includes a main pump body, a resiliently deformable piston dome, an air chamber, a liquid chamber, a mixing zone and a porous member. The main pump body has an exit nozzle with the porous member therein. The air chamber and the liquid chamber are each defined by the piston dome and the main pump body. The liquid chamber has a liquid inlet valve and a liquid outlet valve. The mixing zone is in flow communication with the air chamber and the liquid chamber. The volume of the air chamber and the liquid chamber are each dependent on the position of piston dome and during an activation stroke the piston moves from the at rest position to the depressed position and responsively the volume of the air chamber and the volume of the liquid chamber are reduced.
Abstract:
A foam assembly connectable to a liquid container includes a main pump body, a resiliently deformable piston dome, an air chamber, a liquid chamber, a mixing zone and a porous member. The main pump body has an exit nozzle with the porous member therein. The air chamber and the liquid chamber are each defined by the piston dome and the main pump body. The liquid chamber has a liquid inlet valve and a liquid outlet valve. The mixing zone is in flow communication with the air chamber and the liquid chamber. The volume of the air chamber and the liquid chamber are each dependent on the position of piston dome and during an activation stroke the piston moves from the at rest position to the depressed position and responsively the volume of the air chamber and the volume of the liquid chamber are reduced.
Abstract:
A dispenser of fluid products includes a ring nut (2) able to be associated to a container of a fluid product and a substantially hollow dispensing head, able to slide coaxially relative to the ring nut (2); the dispensing head (8) includes a dosing chamber (14) obtained within the dispensing head (8) and a dispensing nozzle (12) to allow the outflow of the fluid product; the dosing chamber (14) has a containment volume variable between a configuration of maximum volumetric capacity when the dosing chamber (14) is isolated and a configuration of minimum volumetric capacity; the dispenser further includes a deformable membrane (15) fastened to the ring nut (2) and a deformable disc-shaped body (16) fastened to the dispensing head (8) and defining the dosing chamber (14) in combination with the membrane (15).
Abstract:
A fluid material dispensing kit including a pouch, provided with a flexible casing and a dispensing case provided with a cover that is to be mounted onto a base. The cover includes an upper recess that has a manually flexibly deformable wall mounted thereon. The wall has a dispensing opening, and the cover is provided with a lower reinforcement that defines, with the wall, a pumping chamber. The reinforcement has a supply opening. The distribution opening and supply opening are provided with, respectively, an output valve and an input valve. The pouch has, built therein, a coupling provided with a well that is sealably covered by the casing of the pouch, and the reinforcement includes a nipple that is to be placed into the well. The nipple is set up so as to enable the perforation of the casing during the placement thereof into the well.
Abstract:
A foam dispensing device uses a single actuator to actuate two concentric pistons, one for an air chamber and one for a telescopically oriented liquid chamber. In all of the various embodiments the liquid chamber stops its actuation first and can continue to move along with the single actuator and the air chamber continues to dispense air. The air and liquids are dispensed into foaming chamber and then dispensed. The liquid chamber can continue to move because the liquid chamber is attached to the pump system by a deformable connector or some form. This arrangement allows for a foaming device that uses just one actuator that has the ability to dispense foam in the first phase and just air to clear out the nozzle effectively in the second phase.
Abstract:
A container for dispensing a liquid comprises a body portion comprising a fibrous material having a coating and a pump portion comprising biodegradable latex. In an alternative embodiment the dispenser can include a biodegradable latex adaptor that couples the body to the pump, wherein the pump draws the liquid from the reservoir using a vacuum. It is contemplated that the structural material of the body portion could be formed out of a biodegradable material. Preferred coating can be used solely for rendering the walls of the body portion substantially impermeable to the liquid, or may perform the function as an adhesive for holding the wall layers together, or to perform both functions.
Abstract:
A manual pump fluid dispenser has a base (112) and a dispensing cap (114) with a dispenser outlet (144′) mounted to the base. Insert (116) is mounted between the base and the cap to define at least one pump chamber (122, 123). The insert engages with the base to define an inlet through which a liquid can be drawn into the at least one pump chamber from a liquid source. The insert has a central core (176) and a resiliently flexible upper diaphragm member (184) projecting upwardly and radially outwardly from the core for contact with the cap to define the at least one pump chamber. The insert is movable between an initial resiliently biased configuration in which the volume of the at least one pump chamber (122, 123) is at a maximum and a deformed configuration in which the volume of the at least one pump chamber is at a minimum, in the deformed configuration, the upper diaphragm (184) is at least partially folded down about itself and/or the core. Other aspects of the dispenser are described and claimed.
Abstract:
This invention relates to pump-action nozzle devices and methods of making the same. The dispenser nozzles of the invention comprises a body which defines an internal chamber having an inlet through which fluid may be drawn into said chamber and an outlet through which fluid present in the chamber may be expelled from the nozzle. The inlet comprises an inlet valve and the outlet comprises an outlet valve. Fluid is dispensed from the dispenser nozzles by pulling the trigger handle of a trigger actuator to resiliently deform or displace a portion of the body of the device that defines the chamber, thereby compressing the chamber and actuating the dispensing of fluid. In preferred embodiments, the outlet comprises an outlet passageway that extends from the chamber to an outlet orifice. One or more spray-modifying features are preferably formed within the outlet passageway.
Abstract:
A device comprising a body including a first polymer and a closure including a second polymer that is substantially not bondable to the first polymer and has a relatively higher shrinkage rate than the first polymer, wherein at least a portion of the closure overlaps at least a portion of the body, forming a hermetic seal therebetween and defining a sealed, empty, sterile container.