Abstract:
A dispensing container including a interior barrier bag is disclosed, along with a method for filling the barrier bag with a material to be dispensed. The dispensing structure includes a non-vented pump and a dip tube structure, and a mechanism for venting the interior of the container to the atmosphere and for venting the interior of the barrier bag during filling. During assembly and filling, the barrier bag is wrapped or collapsed around the dip tube structure, so that the dip tube structure and the barrier bag can be easily inserted into a conventional container. After insertion, the barrier bag is inflated (with either an air blast or the introduction of the dispensed product) and filled with product. After filling a pump structure can be attached to the container. The method and apparatus allow a barrier bag device to be used on conventionally-designed container structures. The method and apparatus are particularly useful with containers which are made up at least partially of recycled materials.
Abstract:
A dispensing unit retainer is formed with a tapered surface into which a dispensing unit, such as a modular pump or the like, is permanently retained with an interference fit. Axially inward movement of the modular pump is limited by a shoulder formed at the inner end of the tapered surface. The retainer can be integrally formed with a container. Once installed in the retainer, the dispensing unit cannot be removed without damage to the retainer or dispensing unit. An upstanding annular wall concentrically surrounding the surface includes an inwardly extending projection for sealing the discharge orifice of the dispensing unit actuator and two axially extending openings cooperating with the actuator to inhibit accidental discharge of the dispensing unit.
Abstract:
An actuator for a dispensing pump is disclosed that pressurizes air and releases the air into an internal fluid passage to mix with, and aerate, fluid dispensed from the dispensing pump and expels residual fluid. The actuator has a body portion, an actuating portion biased away from the body portion, and an air chamber formed between the two portions. Force applied to the actuating portion is transmitted to, and serves to operate, the dispensing pump and compresses the actuating portion toward the body portion, pressurizing the air in the air chamber. The pressurized air is selectively released into the fluid passage. Disclosed embodiments employ a dome-shaped resilient membrane and a piston as the actuating portion.
Abstract:
A trigger attachment, for a finger operated pump having an axially outwardly projecting actuating and dispensing stem having therein an axial bore through which material is dispensed upon axial inward movement of the stem, has a body attached to the pump body and a generally vertically extending portion which can be griped by the hand, a trigger mechanism hinged to the body and adapted to be coupled to said actuating stem, the trigger mechanism converting a radial motion of the trigger with respect to the body into axial inward motion at the actuating stem, and a nozzle coupled to the outlet bore in said actuating stem.
Abstract:
In an atomizing pump dispenser which includes a pump body having a pump chamber with a piston disposed for reciprocal motion therein for dispensing a fluid from the pump chamber upon depression of a dispensing stem which is operatively coupled to the piston, and in which a valve member operatively coupled to the piston closes off an inlet throat for the chamber during dispensing, the inlet throat being formed by a separate insertable flexible seal, the flexible seal is disposed at the bottom of the pump chamber in such a manner as to be slidable between two positions. In the first position, which the seal assumes when the pump stem is depressed, it abuts against the pump body to prevent communication between the pump chamber and the space below the throat. After the dispensing stroke, as the stem is pushed upward by biasing means and, with it, the valve member, the flexible seal moves to a second position in which a bypass channel is opened permitting fluid to immediately begin refilling the pump chamber from below the throat.
Abstract:
A liquid dispenser which permits dispensing liquid or viscous semi-liquid products from an unpressurized container using a non-vented pump in which a rigid outer container open on one end and having a breathing hole holds a flexible collapsible bag, filled with the product to be dispensed; the bag is affixed to the container as by extending through the open container end and the bag ends overlapping the containers edges, and the non-vented pump installed therein placed on or over the open container end so as to seal the bag against the outer container. When operated, the force of the atmospheric pressure, acting through the hole, partially collapses the bag, and forces the liquid to be dispensed into the pump.
Abstract:
A glass container is molded with a recessed outlet end having a sharp outer edge and an enlarged lip. The outside surfaces of the lip of the container from a point adjacent the recessed opening are straight in part and convexly shaped in another part and terminate in a portion of reduced diameter at the neck of the container. A closure assembly centrally housing an aerosol "or pump-type" valve is formed with a depending flange, an annular stepped portion adjoining the central housing, and a concave surface portion connecting the stepped portion and the depending flange. A liquid elastomeric resin lining is flowed onto the concave surface and depending flange portions and cured to form a resilient liner. The closure assembly is then mounted upon the recessed open end of the glass container forming an inwardly diverging channel between the recessed outlet and enlarged lip of the container on the one hand and the stepped and concave portions of the closure assembly on the other hand. The closure assembly is then secured to the container by the crimping or rolling of the depending flange. This action causes the sharp edge to bite into the elastomeric lining, compresses the resilient lining, causing it to flow in the diverging channel toward the recessed opening of the container and fill the channel, and seals the container. The closure assembly can also be used with a metal bottle and will form a continuous structure with the top edge thereof permitting a simple container structure whose edges will not be deformed when crimped.
Abstract:
An aerosol dispensing device includes a rotating actuator, an upstanding wall partially surrounding the actuator, and a sliding nozzle closure. The actuator may include a spray nozzle and a downwardly extending projection, in fluid communication with the spray nozzle, to sealingly engage an upwardly projecting stem of an aerosol valve. The upstanding wall may include an upper opening, a lower opening below the upper opening, and a spray opening. The sliding nozzle closure may include an upper projection, fitting into the upper opening and the spray nozzle, to seal the spray nozzle when the actuator is in a non-dispensing position, and, a lower member, fitting into the lower opening, to facilitate the sliding movement of the nozzle closure.
Abstract:
An integrally formed container for complementary use with a mounting cup comprising a neck portion including an interior sealing surface adapted to contact an interior piston portion of a mounting cup and an exterior surface including a lower snap surface adapted to engage the upper snap surface of an exterior snap flange on the mounting cup and a rim surface forming a mouth and disposed between the interior sealing surface of said neck portion and the exterior surface of said neck portion.
Abstract:
Nozzle closures which are mounted for pivoting movement from a closed to an open position are used with a spray dispensing device. In the open position, the nozzle closure moves away from the spray nozzle on an actuator and a spray opening in a surrounding wall, allowing fluid to dispensed through the nozzle from a pump or aerosol valve, as the actuator is depressed. In the closed position, the nozzle closure pivots into a position where a first projection enters at least partially into the spray nozzle. The projection acts to seal the spray nozzle against air, thereby preventing drying of any fluid in the nozzle and reducing the chance that the spray nozzle will become clogged. The nozzle closure also includes a second projection which fits into a recess in the actuator and serves to provide resistance against depression of the actuator, thereby providing a locking function for the actuator to prevent accidental discharge from the spray nozzle. The sealing finger completely covers a spray opening in a wall surrounding the actuator.