Abstract:
A valve for a pressurized dispensing container has a resilient annular grommet that surrounds a valve stem. The grommet has a lower segment which engages an elongate valve stem opening with a slight interference fit to provide user controllable metering of the product being dispensed. A recess in the lower surface of the grommet contains the stem button from the closed state to the fully open state to provide stability for the stem. The upper portion of the grommet has a restoring boot to assure that the valve is returned to its closed state once manual force is removed from the valve. A boot flange and stem recess engagement together with other dimensional relationships assures that the boot provide the required restoring force throughout the dispensing of product.
Abstract:
A piston is longitudinally slidable within a pressurized container to dispense materials from the container. The piston has a generally annular sidewall and a traverse barrier wall at one end of the sidewall and integral therewith to define a cup-shaped closure open at one end. An annular step is provided on the sidewall which divides the sidewall into two segments, an upper segment and a lower segment. The annular step is below and spaced from the barrier wall. The upper segment has a diameter smaller than the diameter of the lower segment and the clearance between the upper segment and the interior of the container is substantially greater than the clearance between the lower segment and the interior of the container.
Abstract:
The grommet used for sealing the charging opening in a pressurized dispensing container is designed so that it can be held in a venting state prior to the charging of the propellant chamber. The design involves an annular ridge above the neck of the grommet and an annular groove above the annular ridge. In that fashion, the grommet can be held loosely on the opening in the base of the container. Flats or cutaways on the crown and groove assure passageway between the propellant chamber and the outside so that air can be taken in and expelled from the propellant chamber during the product loading stages.
Abstract:
An axially actuated valve for use in a pressurized container is controlled by a user to dispense the amount of product desired. The valve stem is moved in an up and down direction so that when dispensing, the user can control the amount of the valve openings that are in communication with the material to be dispensed. A resilient sealing grommet provides an interference fit around the lower part of the valve stem from the button up to the top of the valve stem openings. This interference fit effectively closes off the uncovered portion of the valve openings thereby permitting user control of the dispensing rate. The stem has openings partially tapered in the form of an inverted truncated pyramid to further facilitate user control of the dispensing of product.
Abstract:
A razor includes a handle, a flexible neck extending from the top of the handle and a blade-carrying razor head pivotally fitted on the distal end portion of the neck. A lower portion of the handle functions as an actuator for dispensing shaving material contained within the handle and is operable between a stop position and a dispensing position. The neck is structured to flex and/or twist in a yielding action in response to external forces as the blade-carrying razor head travels over irregular or varying contours of the skin surface. The flexible neck may be formed to include a scoop for directing a stream of water through the blade-carrying razor head in a fanned array, providing an enhanced flushing action to remove debris and residue which accumulates on the blades.
Abstract:
A grommet for sealing the propellant charging opening in a pressurized dispensing container has a crown portion inside the container, a base portion outside of the container and a resilient neck joining the base and crown. The neck dimensions are such so as to provide three interference fit sealing zones between grommet and container base. The neck has a length less than the lip of the container opening to provide a first interference fit sealing relationship. The neck diameter is greater than the diameter of the lip to provide a second interference fit sealing relationship. The corner between neck and crown is rounded to provide a third interference fit sealing relationship. The grommet has a central opening so that a stretch pin can be inserted to stretch the neck during the injection of propellant. The extended neck lifts the crown from the container and causes the neck to contract to provide a passageway around the neck and under the crown for injected propellant.
Abstract:
A pressurized dispensing container includes a stop between piston and container cap to provide a gap through which propellant can be dispensed through an open valve or after the end of the dispensing of the material that is in the zone between piston and cap. This stop can be designed to keep the piston orthogonal. Excess pressurized propellant will be dispensed through the valve in its open state by forcing its way through the clearance between piston and can sidewall, through the gap between piston and cap and out of the open valve. Alternatively, the stop can also cause the piston to skew thereby providing an enhanced passageway around the piston for propellant that then exits through gap and open valve.
Abstract:
For use in a pressurized container that dispenses product, a pouch support has an upper edge that rests on the upper opening of the container and a sidewall that extends downwardly to a tail piece providing a port. At this port, the pouch is sealed to the tail piece. A dip tube integral with the pouch support extends down from the tail piece.This arrangement permits filling the pouch in place in the container where the pouch is supported by the pouch support because the pouch opening is held open by the tail piece of the pouch support. Product that is ultimately dispensed , is filled through the port of the tail piece and through the dip tube. After the filling operation is completed, the valve is attached in place by crimping the valve cup to the upper opening of the container sidewall.The dip tube has a plurality of sidewall openings that permit dispensing product when the pouch is pinched off at the dip tube.
Abstract:
The structure of a piston design to be used in a pressurized dispensing container which dispenses product that is loaded at a higher temperature where it is highly flowable but maintained and dispensed at a lower temperature where it is highly viscous. The piston has an annular sidewall with an upper end that maintains a very close tolerance to the can in which it is used. The lower end has a smaller interference fit with the container. Between the upper and lower end is a recess zone that provides a more substantial clearance with the sidewall of the container.
Abstract:
A plastic dispensing actuator for a pressurized container used to dispense product has a dispensing nozzle that is mounted on the tilt valve of the container and a lever attached to the dispensing nozzle. The lever is attached by a living hinge to the wall of the nozzle. The lever is in the normal vertically aligned state for storage and shipment. It is rotated about the hinge to a horizontal dispensing state whereby actuation of the lever by depressing it causes the nozzle and the valve to tilt thereby dispensing product.