MXPA00012427A - Dispensing package - Google Patents

Abstract

A dispensing package (10) for cosmetic creams is disclosed. The dispensing package includes a container body (16) having a first end (18) and a second end (30). The container body includes a first inner perimeter (58) adjacent the first end (18) and a second inner perimeter (62) adjacent the second end (30), wherein the first perimeter is larger than the second perimeter. The dispensing package also includes an elevator (14) positioned within the container body for movement between the second end of the container body and the first end of the container body to force material held within the container body out the first end of the container body. The elevator (14) includes an outer surface facing an inner wall (24) of the container body and a sealing bead (54) formed on the outer surface of the elevator. The sealing bead (54) engages the inner wall of the container body adjacent the second end (30) of the container body to form a seal permitting filling of the dispensing package and containment of product volatiles during storage and distribution. The sealing bead disengages from the inner wall (24) of the container body where the second inner perimeter transitions to the first inner perimeter to provide pressure relief from the seal and a free-floating elevator as the elevator (14) moves from the second end of the container body toward the first end of the container body.

Description

% • * DESPACHADOR CONTAINER FIELD OF THE INVENTION This invention relates to containers 5 dispatchers ascending turntable, and, more particularly, with dispatchers containers ascending turntable exhibiting dosage aided by pressure and a delivery system, and a free floating elevator which is suitable for 10 filling with liquids.

BACKGROUND OF THE INVENTION Dispensing containers with upward rotating plate have been used to dispatch products in cosmetic cream for the user's axillary area. Normally, the product moves towards the outer end of the dispensing container by manually turning a wheel by hand, which pushes a feed screw and, in turn, an elevator. The movement of the elevator in the product presses on it causing the product to be extruded through the holes of a perforated dome on the application surface of the perforated dome. An undesirable side effect of this type of the dispensing container that occurs when the ^^ ^^ fc¡ ^^^ g cream products are used is that after the product has been dispensed, residual pressure exists within the product in the dispenser package against the perforated dome causing the product to spill onto the surface of application of the perforated dome for a period of time after the user has stopped shipping. Depending on the properties of the material of the cream product contained in the dispensing container, the separation of the product may occur and the individual components of the cream product could be spread on the application surface. Any of these incidents results in an undesirable dirty appearance of the application surface and may also adversely affect the aesthetics of application. In addition, after the product and / or its components have been spilled (defined as a separation of the liquid component of a chemical from the product or physical matrix) on the application surface, the product, or its components, can be spread to the outer wall of the container body and dirty the user's hands. One approach to lightening the residual pressure on the product is to use a dispensing container having a feed screw to push an elevator that drives the cream product in a uni-directional manner. The thrust of the feed screw overlaps the reciprocal movement caused by an internal cam. When the feed screw moves the internal cam upwards, the pressure on the product increases and extrusion of the product through the perforated dome occurs. An integral spring or spring can be used separately on the feed screw to retract the feed screw and the elevator once the inner cam has reached its highest position. It is important that the surface of the lift match the internal topography of the perforated dome and the elevator move perpendicular to the feed screw without wobbling (defined as swinging or moving irregularly in an orientation which is not perpendicular to the screw of feed into the dispenser package as measured by a suitable angle measurement or deflection indicator) so that the pressure on the product during extrusion is uniform. Retracting intermittently elevator a suitable distance, discrete amounts of the product (doses) are dispensed for each cycle and the residual pressure on the product is relieved, preventing it from slipping on the surface of packaging application dispatcher. Dispensing containers according to this method are set forth in detail in U.S. Patent No. 5,000,356 to Johnson et al., Which is incorporated herein by reference. One of the most common methods for filling a dispensing container with an upward rotating plate with cosmetic cream is to empty the cosmetic cream as a liquid in the upper open end of the dispensing container. Unfortunately, the cosmetic cream in liquid form often exits undesirably behind the elevator. One method to solve this problem is to provide a sealing bead that completely surrounds the elevator. However, when this method is used, the interference between the sealing bead and the internal walls of the dispensing container is substantial and results in partial retraction or no retraction of the elevator as set forth in U.S. Patent No. 5,000,356. from Johnson et al. When a sealing bead that completely surrounds the elevator is not used, it is now free floating (experiencing a minimum contact pressure with the inner wall of the container body thereby allowing the elevator to retract) although it tends to lose its proper orientation to be perpendicular with the feeding screw inside the dispensing container during its use. When the elevator is not properly oriented inside the dispensing container, the product is not evenly dispensed and the pressure of the product against the perforated dome is not uniform resulting in uneven pressure relief by the elevator and spillage of the product. Therefore, it is desirable to provide a dispenser package having a sealing system, which effectively seals the dispenser package to prevent leakage during the filling of the product from the top, while also providing a free floating elevator that responds to the retraction action of the feed screw to prevent spillage of the product on the application surface while achieving a proper orientation to be perpendicular to the feed screw inside the dispenser package during its use..

BRIEF DESCRIPTION OF THE INVENTION Therefore, it is an object of the present invention to provide a dispenser package that includes a container body having a first end and a second end.The container body includes a first internal perimeter adjacent to the first end. and a second internal perimeter adjacent to the second end, wherein the first perimeter is larger than the second perimeter.The dispensing container also includes an elevator positioned within the container body to move between the second end and the container body and the container. first end of the container body to make the material stay inside the container body outside the first end of the container body The elevator includes an external surface facing an internal wall of the container body and a sealing bead formed on the surface external of the elevator The sealing bead engages with the inner wall of the body of the container adjacent the second end of the container body to form a seal that allows the filling of the liquid product into the dispenser container as well as the containment of the volatile products during storage and distribution. The sealing bead is decoupled from the inner wall of the container body where the second internal perimeter transitions to the first internal perimeter to provide a free floating elevator as the elevator moves from the second end of the container body to the first end of the body of the container. It is also an object of the present invention to provide a dispenser package, wherein the elevator includes at least one fin extending upwardly and outwardly (defined as an outwardly extending member) projecting from an edge of a top surface. of the elevator. A further object of the present invention is to provide a dispenser package, wherein the elevator includes a main shaft of the elevator and a secondary shaft of the elevator and the container body includes a main shaft of the container body and a secondary shaft of the container body. , and wherein the first and second fins project respectively from the first and second edges of the upper surface of the elevator along the main axis of the elevator.

It is also an object of the present invention to provide a dispenser package, wherein the container body includes a thickened portion adjacent the second end of the container body to create the smaller internal perimeter adjacent the second end of the container body. The sealing bead surrounding the riser engages the thickened portion to form the seal and moves above the thickened portion as the riser moves toward the first end of the container body to easily provide a free floating riser as elevator moves towards the first end of the body of the container. A further object of the present invention is to provide a dispenser package, wherein the sealing bead forms a compression seal with the internal wall of the container body adjacent the second end of the container body. It is another object of the present invention to provide a dispenser package, wherein the first and second fins form a 1: 1 contact. (defined as minimum contact force by interference) with the inner wall of the container body.

Other objects and advantages of the present invention will become apparent from the following detailed description when viewed in conjunction with the accompanying drawings, which set forth certain embodiments of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a longitudinal sectional view of the dispenser package of the present with the elevator in its fully retracted position. Figure 2A is a detailed, longitudinal sectional view of the dispenser package with the elevator in its fully retracted position as highlighted by the circle 2A shown in FIG.

Figure 1. Figure 2B is a cross-sectional view of the container body with the elevator along the line 2B-2B as shown in Figure 1. Figure 3 is a top view of the elevator. Figure 3A is a detailed top view of the elevator highlighted by the circle 3A as shown in Figure 3.

Figure 4 is a longitudinal sectional view of the elevator along line 4-4 as shown in Figure 2B. Figure 5 is a longitudinal sectional view of the dispenser package with the elevator moving above the thickened portion of the wall of the container body. Figure 6 is a detailed longitudinal sectional view of the dispenser package with the elevator moving above the swollen portion of the wall of the container body as highlighted by the circle 6 shown in Figure 5.

DESCRIPTION OF THE PREFERRED MODE With reference to Figures 1 to 6, a dispensing container 10 is exposed. The dispensing container 10 is a screw dispenser package commonly used in the application of deodorants and other materials. The dispensing container employs a screw mechanism 12 with the help of pressure to move a lifter 14 inside a container body 16 and push the material of the first end 18 of the container body 16. The screw mechanism 12 with the help of pressure preferably is similar to that disclosed in U.S. Patent No. 5,000,356 to Johnson et al., although other screw mechanisms can be employed with the aid of pressure without departing from the spirit of the present invention. In summary, and with reference to Figures 1 and 5, the screw mechanism 12 is actuated by rotating a manual wheel 20 coupled to the feed screw 22 and the elevator 14. In use, the manual wheel 20 is rotated, rotating with this the feed screw 22. After the elevator 14 is housed inside the body of the container 16, the rotation of the feed screw 22 causes the elevator 14 to move upwards from the feed screw 22, thereby pushing the material from the dispensing container 10 when the manual wheel 20 is rotated to cause the elevator 14 to move upwards. According to the preferred embodiment of the present invention, the dispenser package 10 includes a container body 16 in which the material is stored, a lifter 14 used to push the material from the interior of the container body 16 and a screw mechanism 12 which controls the movement of the elevator 14 within the container body 16. The container body 16 is preferably constructed of polypropylene and the elevator 14 is preferably constructed of polyethylene. The use of these materials in the construction of the container body 16 and the elevator 14 achieves a sliding interaction. between the inner wall 24 of the container body 16 and the outer surface 26 of the elevator 14. However, other materials can be used without departing from the spirit of the present invention. Referring to Figures 1 and 2B, the container body 16 usually has an oval shape in the cross section, although other shapes could be employed without departing from the spirit of the present invention such as, for example, rectangular, circular, elliptical, triangular and square. The container body 16 is preferably constructed of a single piece of plastic and includes a first end 18 through which the material is dispensed, elongated side walls 28 and a second end 30 substantially closed. The container body 16 can also be constructed of several pieces of plastic. The second end 30 includes an opening 32 sized and shaped to adapt the screw mechanism 12 in a manner that will be discussed in more detail below. The screw mechanism 12 is a conventional drive system used in similar dispensing devices. Briefly, the screw mechanism 12, preferably used in accordance with the present invention, includes a manual wheel 20 that can be rotated in a threaded feed screw 22 secured to the manual wheel 20 that can be rotated for rotation therewith. The manual wheel 20 is maintained within a recess 34 formed externally of the second end 30 of the container body 16. The recess 34 is formed to accommodate the manual wheel 20 therein, while allowing a user to engage and rotate the manual wheel 20 when the user wishes to dispatch the material. The feed screw 22 has a first end 36 and a second end 38. The second end 38 of the feed screw 22 extends through the opening 32 in the second end 30 of the container body 16 and engages with the manual wheel 20. In this way, the feed screw 22 is rotated when the manual wheel 20 is rotated by the user. The first end 36 of the feed screw 22 extends into the container body 16 such that the lift 14 can be mounted on the feed screw 22 until it reaches a desired position adjacent the first end 18 of the container body 16. As such, the lifter 14 includes a threaded central opening 40 shaped and sized to receive the feed screw 22. After the elevator 14 is formed to fit in a molded manner within the body of the container 16, the elevator 14 does not rotate within the container body 16 and rotation of feed screw 22 causes elevator 14 to be mounted above feed screw 22. In use, manual wheel 20 and feed screw 22 are rotated by the user when he or she wishes that the additional material is pushed from the first end 18 of the body of the container 16. When the manual wheel 20 and the feed screw 22 are rotated in the proper direction, the elevator 14 moves towards the first end 18 of the container body 16. The movement of the elevator 14 towards the first end 18 of the container body 16 moves the stored material in a similar direction and the material is finally pushed out of the first end 18 of the body of the container 16 to be used by the individual. After the dispensing container 10 herein employs a screw mechanism 12 with the aid of pressure, the elevator 14 slightly retracts after the material is pushed from the container body 16 to prevent spillage of additional material from the dispenser package. 10. The elevator 14 of the dispenser package 10 hereby works in conjunction with the inner wall 24 of the container body 16 to seal the space between the external surface 26 of the elevator 14 and the inner wall 24 of the container body 16. When the space between the external surface 26 of the elevator 14 and the inner wall 24 of the container body 16 is suitably sealed according to the present invention, the dispenser package 10 can be filled with the material in liquid form (i.e., filling with liquid the Dispatcher container). In addition, a suitable seal according to the present invention contains the volatile elements of the material during the storage and / or distribution of the loaded dispensing container. However, the seal created between the sealing bead 54 of the elevator 14 and the inner wall 24 of the container body 16 breaks after the liquid product has solidified and the elevator 14 moves towards the first end 18 of the container body 16. In this way, the dispensing container 10 herein provides a free floating elevator 14 ideally designed to be used with a dispensing container with the aid of pressure. Specifically, the elevator 14 is provided with an upper surface 42 facing the first end 18 of the container body 16 and a lower surface 44 facing the second end 30 of the container body 16. The upper surface 42 provides a support surface on which the material sits as it moves inside the container body 16. The upper surface 42 has an outline that matches the internal topography of the perforated dome 72. to achieve a uniform internal pressure between the product and the perforated dome 72 during the use of the dispensing container. The lifter 14 also includes an outer surface 26 between the upper surface 42 and the lower surface 44. The outer surface 26 of the elevator 14 is designed to move adjacent the inner wall 24 of the container body 16 as the elevator 14 moves. inside the body of the container 16 for dispensing the material therein. As such, the external surface 26 of the elevator 14 is shaped to conform to the inner wall 24 of the container body 16 after the container body 16 usually has an oval shape and includes a main shaft 46 and a secondary shaft 48, the lifter 14 has a similarly oval shape and includes a main shaft 50 and a secondary shaft 52. The formation of a secure seal between the external surface 26 of the elevator 14 and the inner wall 24 of the container body 16 is achieved by the provision of a sealing bead 54 along the external surface 26 of the elevator 14 adjacent to the lower surface 44 of the elevator 14, as best shown in Figure 2A. The sealing bead 54 works in conjunction with the thickened portion 56 of the container body 16 to form a secure seal that allows the interior of the dispensing container 10 to be filled with the liquid product. Accordingly, the container body 16 includes a first internal perimeter 58 along the first end 18 and the central section 60 of the container body 16 and a second internal perimeter 62 adjacent the second end 30 of the container body 16 (i.e., a thickened portion), wherein the first internal perimeter 58 is slightly larger than the second internal perimeter 62. The second internal perimeter 62 is created by forming the container body 16 such that the wall of the container body 16 is thicker adjacent to the second end 30 of the container body 16. According to With the preferred embodiment of the present invention, the wall of the body of the container 16 adjacent to the second end 30 of the body of the container 16 is of about 0.003"and 0.005" thicker than the wall of the container body 16 adjacent the first end 18 of the container body 16. While the internal perimeter of the container body 16 is controlled by adjusting the thickness of the body wall of the container body 16. container 16 in the exposed embodiment, the internal perimeter of container body 16 can be controlled in other ways without departing from the spirit of the present invention. The sealing bead 54 of the elevator 14 is shaped and dimensioned to firmly engage the thickened portion 56 of the container body 16 when the elevator 14 is in its fully retracted position adjacent to the second end 30 of the container body 16 (see Figures 1 and 2A ). The sealing bead 54 extends approximately 0.015"from the external surface 26 of the riser 14. In this way, the sealing bead 54 forms a compression seal with the inner wall 24 of the container 16 in the thickened portion 56 of the container body 16 for sealing the space between the external surface 26 of the elevator 14 and the internal wall 24 of the container body 16. As the container body 16 is used for a longer time, the sealing bead 54 adjusts the shape and dimension of the internal wall 24 of the container body 16. When the elevator 14 is in its fully retracted position and the sealing bead 54 forms a compression seal with the thickened portion 56 of the container body 16, the dispensing container 10 can be filled with the material in a manner conventionally, without worrying that the material will leak inside the external surface 26 of the elevator 14 and the inner wall 24 of the container body 16. In summary, the The elevator 14 and the sealing bead 54 are formed in such a way that the sealing bead 54 engages the inner wall 24 of the container body 16 adjacent the second end 30 of the container body 16 to form a seal that allows the container to be filled with liquid. dispenser as well as the containment of the volatile elements of the material during storage and distending. When a consumer wishes to use the dispenser package 10, he or she first moves the sealing bead 54 over the thickened portion 56 of the container body 16 as the elevator 14 moves toward the first end 18 of the container body 16. That is to say, the sealing bead 54 rapidly disengages from the inner wall 24 of the container body 16 where the second internal perimeter 62 transitions towards the first internal perimeter 58 to provide a free floating elevator 14 ideally suited for use with a dispenser package with the aid of Pressure (see Figures 5 and 6). The height and gradient of the transition of the inner wall 24 from the second inner perimeter 62 to the first inner perimeter 58 is critical in defining the coupling / uncoupling relationship between the sealing bead 54 of the inner wall 24. The preferred angle of The transition of the inner wall 24 from the second inner perimeter 62 to the first internal perimeter 58 is between approximately 3 degrees and 10 degrees from the horizontal.

As shown in Figure 1, the sealing bead 54 only slightly engages the thickened portion 56. As a result of this, only limited pressure must be applied before the riser 16 moves toward the first end 18 of the container body 16. and the sealing bead 54 moves above the thickened portion 56. It is important, however, that the sealing bead 54 not be positioned too far below the thickened portion 56 of the container body 16 because the internal force of the internal wall 24 on the sealing bead 54 could not allow that the elevator 14 moves upward in the center section 60 and could result in a damage of the internal cam 74. Once the sealing bead 54 moves above the thickened portion 56 of the container body 16, the sealing bead 54 remains adjusted to the shape and dimensions of the thickened portion 56 and does not contact the inner wall 24 of the container body 16 as the elevator moves through the central section 60 and the first end 18 of the body of vessel 16 (see Figures 5 and 6). In this way, the present invention provides a free floating elevator 14.

The movement of the elevator 14 within the container body 16 is enhanced by the provision of first and second fins 64, 66 extending upwardly and outwardly projecting from the edge of the upper surface 42 of the elevator 14 towards the first end 18 of the container body 16. The provision of the fins 64, 66 improves movement of the elevator 14 within the container body 16 by restraining the bobber of the elevator 14 within the container body 16. The fins 64, 66 project from the first and second edges 68, 70 of the upper surface 42 of the riser 14 along the main axis 50 of the riser 14. Specifically, the fins 64, 66 project from the edges 68, 70 of the upper surface 42 along the external surface of the elevator 14 to a position that is slightly inward of the point at which the radius of the main shaft 50 intersects the radius of the secondary shaft 52. The fins 64, 66 are designed for Xtend this limited distance and avoid compression of the fins, causing the fins to curl in an undesirable way. Further, by placing the fins 64, 66 along a single portion of the edges 68, 70 of the upper surface 42, the resistance created by the fins 64, 66 is limited without sacrificing the functionality of the fins 64, 66. If the resistance created by the fins 64, 66 is too great, the riser 14 can operate improperly and the screw mechanism 12 can be damaged The fins 64, 66 are angled and are thin enough to conform to the inner wall 24 of the container body 16 through the range of dimensional variations found in the normal injection molding of both the container body 16 and the elevator 14. The fins 64, 66 form a uniform 1: 1 contact with the internal wall 24 of the body of container 16 (ie, the fins 64, 66 have the same dimensions as the inner wall 24 and do not need to be compressed by the inner wall 24; in this way the fins 64, 66 form a free floating contact dent. of the inner wall 24 of the container body 16). As a result of 1) the minimum contact area between the fins 64, 66 and the inner wall 24 of the container body 16, 2) the minimum contact angle between the fins 64, 66 and the inner wall 24 of the container body 16 and 3) the minimum thickness and sufficient flexibility of the fins 64, 66, the 1: 1 contact between the fins 64 , 66 and the inner wall 24 of the container body 16 is practically free of flotation and requires a minimum force to achieve a reciprocating movement. The height of the elevator 14 can be adjusted to adapt to a change in the height of the dispensing container 10. For example, if the height of the dispensing container 10 increases, then the height of the elevator 14 may need to be increased to prevent the elevator from wobbling. during its use. The efficiency of the sealing bead 54 is improved with the provision of the fins 64, 66 discussed in the foregoing. Specifically, the fins 64, 66 prevent wobbling thereby ensuring a firm seal between the sealing bead 54 and the thickened portion of the container body 16. While the preferred embodiment has been shown and described, it should be understood that no attempt is made limiting the invention through this disclosure, instead, it is intended to cover all modifications and alternative constructions that are within the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. CLAIMS 1. A dispenser package characterized by: a container body having a first end and a second end, the container body includes a "first internal perimeter adjacent to the first end and a second internal perimeter adjacent to the second end, wherein the The first internal perimeter is greater than the second internal perimeter, and a lifter placed inside the container body to move between the second end of the container body and the first end of the container body to push the material held inside the container body out of the container. First end of the container body, the elevator includes an external surface, wherein the external surface couples an internal wall of the container body adjacent the second end of the container body to form a seal and the outer surface is decoupled from the internal wall of the container body. body of the container where the second internal perimeter makes transitions towards the prime r internal perimeter to provide substantially less interference between the elevator and the second end of the container body, as the elevator moves from the second end of the container body towards the first end of the container body.
2. A dispenser package, characterized by a container body having a first end and a second end; an elevator positioned within the container body to move between the second end of the container body and the first end of the container body for pushing the material maintained inside the container body out of the first end of the container body, the elevator is shaped to Fitting to the inner wall of the container body and including a main shaft of the elevator and a secondary axis of the elevator, the elevator includes an external surface; and at least one fin projecting from the outer surface of the riser along the main axis of the riser, the fin is shaped to engage the internal wall of the container body such that the riser prevents wobble and still remains retractable.
3. A dispenser package, characterized by a container body having a first end and a second end, the container body includes a first "internal perimeter adjacent to the first end and a second internal perimeter adjacent to the second end, wherein the first internal perimeter It is larger than the second perimeter of an elevator placed within the container body to move between the second end of the container body and the first end of the container body to push the material held inside the container body out of the first end of the container body. container, the elevator includes an external surface, wherein the outer surface couples an inner wall of the container body adjacent the second end of the container body to form a seal and the outer surface is decoupled from the internal wall of the container body where the second internal perimeter makes transitions to the first p internal erimeter to provide substantially less interference between the elevator and the second end of the container body as the elevator moves from the second end of the container body towards the first end of the container body; and wherein the preferred angle of transition from the inner wall of the second internal perimeter to the first internal perimeter is 3 degrees to 10 degrees from the horizontal.
4. 4. The dispenser package according to any of the preceding claims, wherein the elevator further includes at least one fin projecting from the external surface of the elevator.
5. 5. The dispenser package according to any of the preceding claims, wherein the container body includes a thickened portion adjacent the second end of the container body to create the smaller internal perimeter adjacent the second end of the container body.
6. 6. The dispenser package according to any of the preceding claims, wherein the container body includes a thickened portion adjacent the second end of the container body to create the smaller internal perimeter adjacent the second end of the container body, wherein the external surface of the elevator it includes a sealing bead which engages the thickened portion to form the seal and moves above the thickened portion as the elevator moves toward the first end of the container body to provide substantially less interference between the elevator and the second end of the container body as the elevator moves from the second end of the container body to the first end of the container body e.
7. 7. The dispenser package according to any of the preceding claims, wherein the container body and the elevator generally have an oval shape, the elevator includes a main axis of the elevator and a secondary axis of the elevator and the container body includes a main axis of the elevator. container body and a secondary shaft of the container body and wherein at least one fin projects from the external surface of the elevator along the main axis of the elevator.
8. 8. The dispenser package according to any of the preceding claims, wherein elevator includes a first fin and a second fin projecting from the external surface of the elevator along the main axis of the elevator.
9. 9. The dispenser package according to any one of the preceding claims, wherein the first and second fins respectively project from a first and second edge of a top surface of the elevator along the main axis of the elevator to a position inside the point in the elevator. which a radius of the main axis of the elevator intersects a radius of the secondary axis of the elevator.
10. 10. The dispenser package according to any of the preceding claims, wherein the external surface of the elevator includes a sealing bead which forms a compression seal with the internal wall of the container body adjacent to the second end of the container body. SUMMARY OF THE INVENTION A dispensing container (10) for cosmetic creams is exposed. The dispenser package includes a container body (16) having a first end (18) and a second end (30). The container body includes a first internal perimeter (58) adjacent to the first end (18) and a second internal perimeter (62) adjacent to the second end (30), wherein the first perimeter is greater than the second perimeter. The dispenser package also includes an elevator (14) positioned within the container body to move between the second end of the container body and the first end of the container body to push the material held within the container body out of the first end of the container. of container. The lifter (14) includes an external surface facing an internal wall (24) of the container body and a sealing bead (54) formed on the external surface of the elevator. The sealing bead (54) engages with the inner wall of the container body adjacent the second end (30) of the container body to form a seal allowing the filling of the dispensing container and the containment of the volatile elements of the product during storage. and distribution. The sealing bead is decoupled from the inner wall (24) of the container body where the second internal perimeter transitions to the first internal perimeter to provide seal pressure relief and a free floating elevator as the lifter (14) moves from the second end of the container body towards the first end of the container body.