This application relates to dispensers for flowable compositions, and more particularly to a dispenser having a base which causes a plunger to urge a predetermined amount of flowable composition through an opening in the dispenser.
Traditionally, topically administered medicine was often formulated as liquids. Applying a liquid to a skin surface often resulted in a portion of the dose spreading beyond the target area. Cream-based formulations were developed as viscous liquids to prevent the unintended application of the medicine to an unaffected area. More recently, pharmacists have been taking traditional medicines and “compounding” them in a cream base.
Administering the cream-based medicines is a challenge because providing an accurate measured dose is not easy. One common form of a dispenser is a traditional hypodermic syringe, without the needle. The user can depress the plunger to force an amount of cream out of the barrel as indicated by markings on the side of the barrel. For older patients, it is not always easy to measure out 0.1 ml or so of medicine, as this may require more dexterity than is available. In addition, it may be difficult for patients to visually track the amount of liquid dispensed by relying on the markings on the side of the barrel because eyesight may vary from patient to patient. Furthermore, depending on the dispenser, more or less liquid may appear to be dispensed compared to the actual amount dispensed when relying on the markings.
The terms “invention,” “the invention,” “this invention” and “the present invention” used in this patent are intended to refer broadly to all of the subject matter of this patent and the patent claims below. Statements containing these terms should be understood not to limit the subject matter described herein or to limit the meaning or scope of the patent claims below. Embodiments of the invention covered by this patent are defined by the claims below, not this summary. This summary is a high-level overview of various embodiments of the invention and introduces some of the concepts that are further described in the Detailed Description section below. This summary is not intended to identify key or essential features of the claimed subject matter, nor is it intended to be used in isolation to determine the scope of the claimed subject matter. The subject matter should be understood by reference to appropriate portions of the entire specification of this patent, any or all drawings, and each claim.
According to various examples, a dosing dispenser includes a housing defining a chamber, a traveler within the chamber, and a plunger within the chamber. In some aspects, the traveler is movable along an axis between an engaged position and a disengaged position relative to the plunger, and the traveler is spaced apart from the plunger in the disengaged position.
In some cases, the plunger includes a first end and a second end, the second end of the plunger defines a plunger cavity, and the plunger defines a filling portion of the chamber between the first end of the housing and the first end of the plunger. In certain aspects, the traveler is configured to abut and selectively position the plunger in the engaged position. In various aspects, the traveler includes a first end and a second end, and the first end includes a plunger driver configured to selectively engage the plunger within a plunger cavity of the plunger and movably position the plunger within the chamber.
In various examples, a base assembly is coupled to the housing. In certain examples, the base assembly includes a base and is configured to movably position the traveler within the chamber through rotation of the base. According to some examples, in the disengaged position, the traveler is spaced apart from the plunger, and in the engaged position, a plunger driver of the traveler abuts the plunger within a plunger cavity of the plunger. In various aspects, the housing includes a dispensing channel, the plunger includes a crown, the plunger defines a filling portion of the chamber between the dispensing channel and the plunger, and at least a portion of the crown is positionable within the dispensing channel of the housing when a volume of the filling portion of the chamber is at a minimum. According to certain examples, the housing further includes an intermediate chamber between the chamber and the dispensing channel, and at least a portion of the crown is positionable within the intermediate chamber when the volume of the filling portion of the chamber is at the minimum.
According to some examples, a dosing dispenser includes a housing defining a chamber, a traveler positionable within the chamber, and a plunger positionable within the chamber. In certain cases, the traveler is independently positionable along an axis relative to the plunger in at least one direction within the chamber.
In various aspects, the chamber includes a first end and a second end, the housing further includes a dispensing channel in fluid communication with the chamber at the first end, and the at least one direction is away from the first end. In some cases, the housing further includes a dispensing channel in fluid communication with the chamber, and the at least one direction is away from the dispensing channel. In some examples, the traveler is configured to abut and selectively position the plunger in the a direction opposite the at least one direction.
In certain examples, a base assembly is configured to movably position the traveler within the chamber. In some aspects, the base assembly includes a base, a drive screw threadably engaged with the traveler and coupled to the base such that rotation of the base rotates the drive screw and axially moves the traveler within the chamber, a base support rotatably supporting the drive screw and the base, the base support including a mounting portion and a supporting portion, the supporting portion including at least one notch, and a cam mounted on the drive screw and including at least one extension configured to engage the at least one notch as the cam is rotated through the drive screw. In various aspects, a cross-sectional shape of the plunger is substantially similar to a cross-sectional shape of the chamber such that the plunger forms a fluid tight seal with the housing within the chamber as the plunger is movably positioned within the chamber.
According to certain examples, a method of dispensing a flowable composition with a dosing dispenser includes positioning a plunger within a chamber defined by a housing of the dosing dispenser, positioning a traveler within the chamber such that the traveler is spaced apart from the plunger, and loading the flowable composition within the chamber.
In certain examples, the housing includes a first end and a second end, the first end includes a dispensing channel in fluid communication with the chamber, positioning the plunger within the chamber includes abutting the plunger against the first end of the housing within the chamber, and loading the flowable composition includes loading the flowable composition through the dispensing channel. In some cases, the plunger includes a crown, and positioning the plunger within the chamber includes positioning at least a portion of the crown within the dispensing channel.
In various cases, loading the flowable composition includes loading a predetermined volume of the flowable composition within the chamber between a dispensing end of the housing and a first end of the plunger facing the dispensing end, and the method further includes advancing the traveler within the chamber such that the traveler abuts a second end of the plunger opposite the first end after the predetermined volume is loaded, and dispensing the flowable composition from the dispensing end of the housing by advancing the traveler towards the dispensing end. According to some examples, the method includes positioning the traveler within the chamber such that the traveler abuts the plunger after the flowable composition is loaded, and advancing the traveler within the chamber such that the traveler movably positions the plunger within the chamber and dispenses the flowable composition from the housing.
Various implementations described in the present disclosure can include additional systems, methods, features, and advantages, which cannot necessarily be expressly disclosed herein but will be apparent to one of ordinary skill in the art upon examination of the following detailed description and accompanying drawings. It is intended that all such systems, methods, features, and advantages be included within the present disclosure and protected by the accompanying claims.
The features and components of the following figures are illustrated to emphasize the general principles of the present disclosure. Corresponding features and components throughout the figures can be designated by matching reference characters for the sake of consistency and clarity.
The subject matter of embodiments of the present invention is described here with specificity to meet statutory requirements, but this description is not necessarily intended to limit the scope of the claims. The claimed subject matter may be embodied in other ways, may include different elements or steps, and may be used in conjunction with other existing or future technologies. This description should not be interpreted as implying any particular order or arrangement among or between various steps or elements except when the order of individual steps or arrangement of elements is explicitly described. Directional references such as “forward,” “aft,” “up,” “down,” “top,” “left,” “right,” “front,” and “back,” among others are intended to refer to the orientation as illustrated and described in the figure (or figures) to which the components and directions are referencing.
Disclosed is a dosing dispenser and associated methods, systems, devices, and various apparatus. The dispenser includes a housing, a plunger, a drive screw, and a traveler. It will be understood by those having ordinary skill in the art that the disclosed dispenser is described in but a few examples among many.
To ensure that the dispenser provides an accurate dosage, the patient may be consistently alerted to stop rotation of the drive screw at the appropriate location, and the amount of medicine that is pushed through a dispensing end may not vary due to leaks or fluctuation in the movement of the plunger.
As illustrated in
In various examples, the first end 104 is a dispensing end of the housing 100 that includes a dispensing aperture 110. As described in detail below, during use of the dispenser 10, the flowable composition may flow into or out of the chamber 108 through the dispensing aperture 110.
In various examples, the first end 104 of the housing 100 also includes an applicator locking interface 112 (see, e.g.,
In some examples, the first end 104 may also include threading 118 that is configured to engage with threading 806 of the cap 800. In various cases, the first end 104 may optionally comprise ribs 120 that are configured to engage with grooves 808 of the cap 800 to provide a stopping interface and align a shape of the cap 800 with a shape of the housing 100. In other examples, the grooves may be provided on the first end 104 and the ribs 120 may be provided on the cap 800.
In various examples (see, e.g.,
As illustrated in
The plunger 200 is shaped to snugly fit within the chamber 108 without freely rotating within the chamber 108. In certain embodiments, the chamber 108 may have some variation in size from top to bottom, with the second end typically being slightly smaller in cross-sectional area than the first end. Also, there may be some variation in sizes among chambers 108 and plungers 200. Therefore, the plunger 200 is configured with a flexible design that provides a fluid tight seal along the entire length of the chamber 108 and between variations among housing 100 sizes. In these embodiments, the plungers 200 may be formed to have a greater degree of flexibility that allows the plunger 200 to bend or compress as needed to form a fluid tight seal inside smaller cross-section areas, and to flex or expand as needed to form a fluid tight seal inside larger cross-section areas.
In certain embodiments, the plunger 200 includes a sealing member 214 that includes a flexible design configured to flexibly bend, compress, flex, and/or expand as needed to allow the plunger 200 to maintain a fluid tight seal within the chamber 108. In the present example, the plunger 200 includes two sealing members 214, although it will be appreciated that any desired number of sealing members 214, including zero sealing members 214, may be used.
As illustrated in
In some examples, the first end 204 of the plunger 200 may also include ribs 218. The ribs 218 may provide air passages between adjacent ribs 218 which may allow for pressure to build up across the first end 204 and reduce the initial force needed to start filling the chamber 108 with the flowable composition.
In various cases, second end 206 of the plunger 200 defines a cavity 208 having a cavity sidewall 210 and a cavity end wall 212. The cavity 208 is dimensioned and configured to engage a plunger driver 314 of the traveler 300 such that the plunger 200 is movably positioned within the chamber 108 through the traveler 300. In various cases, a skirt of the plunger 200, or the portion of the body that extends from the cavity end wall 212 to the second end 206, is provided to reduce fold-over or rotation of the plunger 200 during filling or dispensing of the flowable composition. In various examples, the plunger 200 is configured to be positioned within the chamber 108 such that the first end 204 of the plunger 200 faces the first end 104 of the housing 100 and the second end 206 faces the second end 106 of the housing 100.
Referring to
In various examples, the traveler 300 includes collars 312 at various positions on the body 302. The collars 312 have a shape that is complimentary to the shape of the chamber 108 of the housing 100 such that rotation of the traveler 300 is resisted as the drive screw 400 moves the traveler 300 axially along the drive screw 400 within the chamber 108. The number of collars 312, the shape of the collars 312, or the location of the collars 312 on the body 302 should not be considered limiting on the present disclosure. In the present example, the traveler 300 includes two collars 312A and 312B. In this example, the collar 312B is proximate to the second end 306 of the body 302 and the collar 312A is proximate to the first end 304.
In some cases, the traveler 300 includes a plunger driver 314 extending from proximate the first end 304. The plunger driver 314 is shaped and dimensioned such that the plunger driver 314 may engage the plunger 200 within the plunger cavity 208 to movably position the plunger 200 within the chamber 108. In various cases, an end 316 of the plunger driver 314 is configured to engage the plunger 200. Thus, the plunger driver 314 may have a cross-sectional profile shape that is complimentary to the shape of the plunger cavity 208. In various cases, the plunger driver 314 may optionally define a plunger drive chamber 318 that is in fluid communication with the chamber 308. In such cases, the end 316 of the plunger driver 314 may define an opening 320, as illustrated in
As illustrated in
Referring to
As illustrated in
The mounting portion 510 defines a mounting portion cavity 516 that is dimensioned and configured to accommodate the support collar 410 of the drive screw 400. In some cases, mounting projections 518 are provided within the mounting portion cavity 516 to retain the drive screw 400 axially relative to the base support 500 while allowing for rotation of the drive screw 400 relative to the base support 500. In some cases, the mounting projections 518 provide a snap-fit engagement with the support collar 410 of the drive screw 400. In various other examples, other suitable mechanisms for retaining the drive screw 400 relative to the base support 500 while allowing for rotation of the drive screw 400 relative to the base support 500 may be used.
The supporting portion 512 defines a supporting portion cavity 520 that is dimensioned and configured to accommodate the cam 600. As illustrated in
Referring to
In various cases, at least one engagement end 608 includes a projection 610 and a trailing edge 612. In some cases, the trailing edge 612 is configured to engage the supporting portion 512 when the projection 610 is within one of the slots 522 to prevent rotation of the cam 600 in the direction of the trailing edge 612. The trailing edge 612 may have various suitable profiles and geometries that provide an interface that resists rotation of the cam 600 in the direction of the trailing edge 612 when the projections 610 are within the slots 522. In some cases, the trailing edge 612 may have a profile that engages the supporting portion 512 such that the arms 606 of the cam 600 will break before allowing back rotation.
In some cases, at least one projection 610 also has a clicking profile 614. In various examples with multiple arms 606, one, some, or all of the projections 610 may have the clicking profile 614. The clicking profile 614 is configured to sufficiently radially bend the engagement end 608 so as to emit an audible “click” when the engagement end 608 returns to an unbent stage after travelling over the supporting portion 512 and engages one of the slots 522. Thus, in certain embodiments, the interaction between at least one of the projections 610 with the clicking profile 614 and at least one of the slots 522 may provide the audible “click” response, while the interaction between at least one of the projections 610 without the clicking profile 614 merely provide the anti-reverse rotation feature.
The interaction between at least one of the projections 610 with the clicking profile 614 and at least one of the slots 522 may also provide tactile feedback. In other embodiments, the interaction between at least one of the projections 610 without the clicking profile 614 (or with an additional clicking profile 614) may provide a back-up audible “click” to the audible “click” that is also emitted by the interaction between at least one of the projections 610 with the clicking profile 614 and at least one of the slots 522. As described in detail below, the auditory and/or tactile feedback from the interaction between at least one of the projections 610 with the clicking profile 614 and at least one of the slots 522 may alert the user that a predetermined amount of the flowable composition was dispensed.
The base 700 includes a body 702 having a first end 704 and a second end 706. The base 700 may have a profile shape that is similar to the profile shape of the base support 500 and/or the housing 100, although it need not. In various other cases, the base 700 may have any desired profile shape. The base 700 defines a keyhole 708 that is dimensioned to accommodate and receive the key 412 of the drive screw 400. The base 700 defines a base cavity 710 that is configured to accommodate the cam 600 and the supporting portion 512. In some aspects, the base 700 includes projections 712 which are configured to engage the attachment groove 514 such that the base 700 is retained on the base support 500 while being rotatable relative to the base support 500. In various other examples, various other mounting mechanisms may be utilized.
When assembled on the base support 500, the base 700 retains the cam 600 on the drive screw 400 between the base support 500 and the base 700. In some cases, the base 700 may provide visual feedback to the user to indicate when at least one of the projections 610 with the clicking profile 614 is engaged with at least one of the slots 522. For example, in some cases where the base 700 has a profile shape that is similar to the profile shape of the base support 500 and/or the housing 100, the base 700 may provide visual feedback that the at least one projection 610 is not engaged with the slot 522 when the profile of the base 700 is misaligned with the profile of the base support 500 and/or the housing 100. In a similar manner, the base 700 may provide visual feedback that the at least one projection 610 is engaged within the slot 522 when the profile of the base 700 is aligned with the profile of the base support 500 and/or the housing 100. Various other visual feedback may be provided by the base 700 when compared to the base support 500 and/or the housing 100.
In
In
In
The cap 800 includes a body 802 that defines a cavity 804. In various aspects, at least a portion of the cavity 804 includes threading 806 that is configured to engage the threading 118 of the housing 100. As described previously, in some cases, the cap 800 includes grooves 808 that are configured to engage the ribs 120 to provide a stopping interface and align a shape of the cap 800 with a shape of the housing 100. In other examples, the grooves may be provided on the first end 104 and the ribs 120 may be provided on the cap 800.
The applicator 900 includes a body 902 having an applicator surface 904 and a housing locking interface 906. A dispensing channel 908 is defined through the body 902. As illustrated in
The housing locking interface 906 is complimentary to the applicator locking interface 112. For example, in some cases, the locking interface 906 may be a male Luer-style interface or a female Luer-style interface. In some cases, the locking interface 906 (or the locking interface 112) may be tamper-proof such that a user may not remove the applicator 900 after a doctor or other person initially fills the dispenser with the flowable composition and attaches the applicator 900 to the housing 100. When assembled, the dispensing channel 908 is in fluid communication with the chamber 108 and dispensing aperture 110 of the housing 100.
As illustrated in
In addition, in this example, the base support 500 is coupled to the housing 100 in a snap-fit configuration such that a portion of the base support 500 overlaps a portion of the housing 100. For example, the second end 106 of the housing 100 is within the mounting portion cavity 516 of the base support 500. In various cases, the base 700 includes a base projection 716 that is insertable into the supporting portion cavity 520 of the base support such that the base 700 is rotatably supported by the base support 500.
As illustrated in
In various examples, as illustrated in
As illustrated in
As illustrated in
In various examples, as illustrated in
In general, once the dispenser 10 (or any of the dispensers 20, 30, 40, 50, 60, 70, 80, 90, 1100, or 1200) is assembled but prior to coupling of the applicator 900, the chamber 108 is filled with the appropriate measured amount of flowable composition. The base 700 is turned so that the drive screw 400 turns and advances the plunger 200 and flowable composition toward the first end 104 of the housing 100. The applicator 900 is then snapped onto the first end 104 of housing 100. The base 700 is turned and the plunger 200 is advanced until there is essentially no air inside the chamber 108 between the flowable composition and the applicator 900. The cap 800 is placed on the applicator 900 and the dispenser 10 is ready for use.
The user removes the cap 800 and turns the base 700 the appropriate amount of clicks (typically as directed on the instructions given to the user by the dispensing physician or pharmacy). As the base 700 is turned, the arms 606 of the cam 600 flex and move over the cam 600 as described above, and/or at least projection 610 moves toward at least one of the slots 522. As the projection 610 passes over and into the slot 522, at least one audible “click” is heard when the base 700 reaches a home or “click” position. Also, the user may sense a vibration when the base 700 reaches a home or “click” position.
With each click, a predetermined amount of flowable composition 1000 is forced by the rising plunger 200 to be dispensed through the applicator 900. In the embodiments where the flowable composition 1000 is an emulsion, cream, or other semi-solid composition, the dispensed flowable composition 1000 may form a bead or pool over the central area of the applicator surface 904 of the applicator 900. The user applies the flowable composition 1000 to the skin by rubbing the applicator 900 on the skin. The flowable composition 1000 at least partially spreads out over the applicator surface 904 and is rubbed into the skin.
The tactile and audible click heard as the base 700 is rotated provides feedback as to how much flowable composition 1000 is dispensed. For example, the prescription might be for 1 cc of flowable composition 1000 per dose to be applied to the skin. If each click is 0.25 cc, for example, then the prescription might instruct the user to turn the base 700 to hear four clicks so as to dispense 1 cc of flowable composition 1000. The design of the present invention substantially prevents reverse rotation of the base 700 with respect to the housing 100 so that flowable composition 1000 is not inadvertently sucked back into the dispenser 10, which may reduce the effective dosage dispensed and may contaminate the flowable composition 1000 in the chamber 108. The click also provides positive feedback when the right amount of flowable composition 1000 has been dispensed per turn. In various cases, the amount of flowable composition 1000 dispensed per click may be adjusted or varied by changing the distance or amount of rotation of the base 700 between clicks. In some cases, changing the amount of rotation of the base 700 between clicks may include changing the size, number, or shape of the slots 522 of the base support 500, changing the threads 408 on the drive screw 400, and/or changing the size, number, or shape of the arms 606 of the cam 600, among others.
In certain embodiments, the dispenser 10 of the present invention may optionally include a vibration mechanism whereby the dispenser 10 and, in particular, the applicator 900 area vibrates when activated so as to improve transfer of the flowable composition 1000 to the skin. The vibration mechanism may be one of several possible mechanisms known to those skilled in the art.
The dispenser of the present invention may also include an indicator mechanism either to show the approximate number of remaining doses or to show when the chamber 108 is near empty, both so that the user can have advance awareness that a refill may be needed.
In certain embodiments, the indicator may be a visual indicator, such as ruler with a set of marks along the side of the housing 100, with each mark being correlated to a particular quantity of flowable composition 1000 remaining in the dispenser 10. In these embodiments, the housing 100, or at least a portion thereof (such as an elongated window extending from near the first end 104 to near the second end 106) may be clear or translucent. As one non-limiting example,
In that various components may be reused in different capacities. For example, in one aspect, the volume is modular so that different housings 100 having chambers 108 with different volumes may be interchanged while using the same plunger 200, base support 500, cam 600, base 700, cap 800, and applicator 900. In some cases, the same traveler 300 and drive screw 400 may be used with the different sized housing 100, or the size of the traveler 300 and drive screw 400 may be adjusted depending on the size of the chamber 108.
A collection of exemplary embodiments, including at least some explicitly enumerated as “ECs” (Example Combinations), providing additional description of a variety of embodiment types in accordance with the concepts described herein are provided below. These examples are not meant to be mutually exclusive, exhaustive, or restrictive; and the invention is not limited to these example embodiments but rather encompasses all possible modifications and variations within the scope of the issued claims and their equivalents.
EC 1. A dosing dispenser including: a housing having a first end and a second end, the housing defining a chamber extending from the first end to the second end, the first end of the housing including a dispensing channel in fluid communication with the chamber; a plunger including a first end and a second end, the plunger positionable within the chamber with the first end proximate to the first end of the housing and the second end proximate to the second end of the housing, the second end of the plunger defining a plunger cavity, the plunger defining a filling portion of the chamber between the first end of the housing and the first end of the plunger; and a traveler including a first end and a second end, the traveler positionable within the chamber, the first end including a plunger driver configured to selectively engage the plunger within the plunger cavity and movably position the plunger within the chamber.
EC 2. The dosing dispenser of any of the preceding or subsequent example combinations, further including a base assembly coupled to the second end of the housing, the base assembly including a base and configured to movably position the traveler within the chamber through rotation of the base.
EC 3. The dosing dispenser of any of the preceding or subsequent example combinations, wherein the base assembly further includes: a drive screw threadably engaged with the traveler and coupled to the base such that rotation of the base rotates the drive screw and axially moves the traveler within the chamber; a base support rotatably supporting the drive screw and the base, the base support including a mounting portion and a supporting portion, the supporting portion including at least one notch; and a cam mounted on the drive screw and including at least one extension configured to engage the at least one notch as the cam is rotated through the drive screw.
EC 4. The dosing dispenser of any of the preceding or subsequent example combinations, wherein the drive screw includes a first end, a second end, and a support collar between the first end and the second end, wherein the drive screw includes external threads between the first end and the support collar configured to threadably engage the traveler, and wherein the base support axially retains the drive screw relative to the base support through engagement of the base support with the support collar of the drive screw.
EC 5. The dosing dispenser of any of the preceding or subsequent example combinations, wherein the traveler is movable between an engaged position and a disengaged position relative to the plunger; wherein in the disengaged position, the traveler is spaced apart from the plunger, and wherein in the engaged position, the plunger driver of the traveler abuts the plunger within the plunger cavity.
EC 6. The dosing dispenser of any of the preceding or subsequent example combinations, wherein a cross-sectional shape of the plunger is substantially similar to a cross-sectional shape of the chamber such that the plunger forms a fluid tight seal with the housing within the chamber as the plunger is movably positioned within the chamber.
EC 7. The dosing dispenser of any of the preceding or subsequent example combinations, wherein the first end of the plunger includes a crown, and wherein at least a portion of the crown is positionable within the dispensing channel of the housing when a volume of the filling portion of the chamber is at a minimum.
EC 8. A dosing dispenser including: a housing having a first end and a second end, the housing defining a chamber extending from the first end to the second end, the first end of the housing including a dispensing channel in fluid communication with the chamber; a plunger including a first end and a second end, the plunger positionable within the chamber with the first end proximate to the first end of the housing and the second end proximate to the second end of the housing, the second end of the plunger defining a plunger cavity, the plunger defining a filling portion of the chamber between the first end of the housing and the first end of the plunger; and a base assembly coupled to the second end of the housing, the base assembly including a base and configured to movably position the plunger within the chamber through rotation of the base.
EC 9. The dosing dispenser of any of the preceding or subsequent example combinations, further including a traveler within the chamber and coupled to the base assembly, wherein the traveler includes a plunger driver configured to selectively engage the plunger within the plunger cavity, and wherein the traveler is configured to axially move within the chamber through rotation of the base of the base assembly.
EC 10. The dosing dispenser of any of the preceding or subsequent example combinations, wherein the base assembly further includes a drive screw, wherein the base is coupled to the drive screw such that rotation of the base rotates the drive screw, and wherein the drive screw is threadably engaged with the traveler such that rotation of the drive screw axially moves the traveler.
EC 11. The dosing dispenser of any of the preceding or subsequent example combinations, wherein the traveler is movable between a disengaged position and an engaged position relative to the plunger, wherein in the disengaged position, the traveler is spaced apart from the plunger within the chamber, and wherein in the engaged position, the plunger driver abuts the plunger within the plunger cavity.
EC 12. The dosing dispenser of any of the preceding or subsequent example combinations, wherein the base assembly further includes: a base support including a mounting portion and a supporting portion, wherein the mounting portion is coupled to the second end of the housing, wherein the supporting portion defines a supporting portion cavity and at least one notch, and wherein the base support rotatably supports the base relative to the housing; and a cam including a body and at least one arm, wherein the cam is retained within the supporting portion cavity and rotatable relative to the base support, and wherein the cam is configured to provide auditory feedback upon engagement of the at least one arm with the at least one notch as the cam is rotated.
EC 13. The dosing dispenser of any of the preceding or subsequent example combinations, wherein a cross-sectional shape of the mounting portion of the base support is different from a cross-sectional shape of the supporting portion of the base support, and wherein a cross-sectional shape of the housing is substantially similar to a cross-sectional shape of the base.
EC 14. The dosing dispenser of any of the preceding or subsequent example combinations, wherein a cross-sectional shape of the plunger is substantially similar to a cross-sectional shape of the chamber such that the plunger forms a fluid tight seal with the housing within the chamber as the plunger is movably positioned within the chamber.
EC 15. A dosing dispenser including: a housing having a first end and a second end, the housing defining a chamber extending from the first end to the second end, the first end of the housing including a dispensing channel in fluid communication with the chamber; a plunger including a first end and a second end, the plunger positionable within the chamber with the first end proximate to the first end of the housing and the second end proximate to the second end of the housing, the second end of the plunger defining a plunger cavity, the plunger defining a filling portion of the chamber between the first end of the housing and the first end of the plunger; and a traveler including a plunger driver, the traveler configured to movably position the plunger within the chamber, the traveler movable between a disengaged position and an engaged position relative to the plunger, wherein in the disengaged position, the traveler is spaced apart from the plunger within the chamber, and wherein in the engaged position, the plunger driver abuts the plunger within the plunger cavity.
EC 16. The dosing dispenser of any of the preceding or subsequent example combinations, wherein in the engaged position, the traveler and plunger are movable within the chamber between a filled position and a dispensed position, wherein in the filled position, the first end of the plunger is spaced apart from the first end of the housing and volume of the filling portion of the chamber is at a maximum, and wherein in the dispensed position, the first end of the plunger abuts the first end of the housing and the volume of the filling portion of the chamber is at a minimum.
EC 17. The dosing dispenser of any of the preceding or subsequent example combinations, wherein the traveler includes a first end and a second end, wherein the plunger driver extends from the first end of the traveler, wherein the traveler includes at least one collar between the first end and the second end that is configured to resist rotation of the traveler as the traveler is movably positioned within the chamber.
EC 18. The dosing dispenser of any of the preceding or subsequent example combinations, wherein the traveler defines a traveler chamber extending from the first end to the second end, wherein at least a portion of the traveler chamber includes threading, and wherein the dosing dispenser further includes a drive screw threadably engaged with the threading of the traveler and configured to movably position the traveler within the chamber.
EC 19. The dosing dispenser of any of the preceding or subsequent example combinations, further including a base assembly coupled to the second end of the housing, the base assembly including a base and configured to movably position the traveler within the chamber through rotation of the base, wherein the base assembly further includes: a drive screw threadably engaged with the traveler and coupled to the base such that rotation of the base rotates the drive screw and axially moves the traveler within the chamber; a base support rotatably supporting the drive screw and the base, the base support including a mounting portion and a supporting portion, the supporting portion including at least one notch; a cam mounted on the drive screw and including at least one extension configured to engage the at least one notch as the cam is rotated through the drive screw.
EC 20. The dosing dispenser of any of the preceding or subsequent example combinations, wherein the drive screw includes a first end, a second end, and a support collar between the first end and the second end, wherein the drive screw includes external threads between the first end and the support collar configured to threadably engage the traveler, wherein the drive screw includes a key between the support collar and the second end, and wherein the base and cam each define a keyhole dimensioned to accommodate the key.
EC 21. A dosing dispenser comprising: a housing defining a chamber; a traveler within the chamber; and a plunger within the chamber, wherein the traveler is movable along an axis between an engaged position and a disengaged position relative to the plunger, and wherein the traveler is spaced apart from the plunger in the disengaged position.
EC 22. The dosing dispenser of any of the preceding or subsequent example combinations, wherein the plunger comprises a first end and a second end, wherein the second end of the plunger defines a plunger cavity, and wherein the plunger defines a filling portion of the chamber between the first end of the housing and the first end of the plunger.
EC 23. The dosing dispenser of any of the preceding or subsequent example combinations, wherein the traveler is configured to abut and selectively position the plunger in the engaged position.
EC 24. The dosing dispenser of any of the preceding or subsequent example combinations, wherein the traveler comprises a first end and a second end, wherein the first end comprises a plunger driver configured to selectively engage the plunger within a plunger cavity of the plunger and movably position the plunger within the chamber.
EC 25. The dosing dispenser of any of the preceding or subsequent example combinations, further comprising a base assembly coupled to the housing, the base assembly comprising a base and configured to movably position the traveler within the chamber through rotation of the base.
EC 26. The dosing dispenser of any of the preceding or subsequent example combinations, wherein in the disengaged position, the traveler is spaced apart from the plunger, and wherein in the engaged position, a plunger driver of the traveler abuts the plunger within a plunger cavity of the plunger.
EC 27. The dosing dispenser of any of the preceding or subsequent example combinations, wherein the housing comprises a dispensing channel, wherein the plunger comprises a crown, wherein the plunger defines a filling portion of the chamber between the dispensing channel and the plunger, and wherein at least a portion of the crown is positionable within the dispensing channel of the housing when a volume of the filling portion of the chamber is at a minimum.
EC 28. The dosing dispenser of any of the preceding or subsequent example combinations, wherein the housing further comprises an intermediate chamber between the chamber and the dispensing channel, and wherein at least a portion of the crown is positionable within the intermediate chamber when the volume of the filling portion of the chamber is at the minimum.
EC 29. A dosing dispenser comprising: a housing defining a chamber; a traveler positionable within the chamber; and a plunger positionable within the chamber, wherein the traveler is independently positionable along an axis relative to the plunger in at least one direction within the chamber.
EC 30. The dosing dispenser of any of the preceding or subsequent example combinations, wherein the chamber comprises a first end and a second end, wherein the housing further comprises a dispensing channel in fluid communication with the chamber at the first end, and wherein the at least one direction is away from the first end.
EC 31. The dosing dispenser of any of the preceding or subsequent example combinations, wherein the housing further comprises a dispensing channel in fluid communication with the chamber, and wherein the at least one direction is away from the dispensing channel.
EC 32. The dosing dispenser of any of the preceding or subsequent example combinations, wherein the traveler is configured to abut and selectively position the plunger in the a direction opposite the at least one direction.
EC 33. The dosing dispenser of any of the preceding or subsequent example combinations, further comprising a base assembly configured to movably position the traveler within the chamber.
EC 34. The dosing dispenser of any of the preceding or subsequent example combinations, wherein the base assembly comprises: a base; a drive screw threadably engaged with the traveler and coupled to the base such that rotation of the base rotates the drive screw and axially moves the traveler within the chamber; a base support rotatably supporting the drive screw and the base, the base support comprising a mounting portion and a supporting portion, the supporting portion comprising at least one notch; and a cam mounted on the drive screw and comprising at least one extension configured to engage the at least one notch as the cam is rotated through the drive screw.
EC 35. The dosing dispenser of any of the preceding or subsequent example combinations, wherein a cross-sectional shape of the plunger is substantially similar to a cross-sectional shape of the chamber such that the plunger forms a fluid tight seal with the housing within the chamber as the plunger is movably positioned within the chamber.
EC 36. A method of dispensing a flowable composition with a dosing dispenser, the method comprising: positioning a plunger within a chamber defined by a housing of the dosing dispenser; positioning a traveler within the chamber such that the traveler is spaced apart from the plunger; and loading the flowable composition within the chamber.
EC 37. The method of any of the preceding or subsequent example combinations, wherein the housing comprises a first end and a second end, wherein the first end comprises a dispensing channel in fluid communication with the chamber, wherein positioning the plunger within the chamber comprises abutting the plunger against the first end of the housing within the chamber, and wherein loading the flowable composition comprises loading the flowable composition through the dispensing channel.
EC 38. The method of any of the preceding or subsequent example combinations, wherein the plunger comprises a crown, and wherein positioning the plunger within the chamber comprises positioning at least a portion of the crown within the dispensing channel.
EC 39. The method of any of the preceding or subsequent example combinations, wherein loading the flowable composition comprises loading a predetermined volume of the flowable composition within the chamber between a dispensing end of the housing and a first end of the plunger facing the dispensing end, and wherein the method further comprises: advancing the traveler within the chamber such that the traveler abuts a second end of the plunger opposite the first end after the predetermined volume is loaded; and dispensing the flowable composition from the dispensing end of the housing by advancing the traveler towards the dispensing end.
EC 40. The method of any of the preceding or subsequent example combinations, further comprising: positioning the traveler within the chamber such that the traveler abuts the plunger after the flowable composition is loaded; and advancing the traveler within the chamber such that the traveler movably positions the plunger within the chamber and dispenses the flowable composition from the housing.
EC 42. A method of dispensing a flowable composition with a dosing dispenser, the method comprising: positioning a plunger within a chamber defined by a housing of the dosing dispenser; positioning a traveler within the chamber such that the traveler is spaced apart from the plunger; and loading the flowable composition within the chamber, wherein loading the flowable composition within the chamber abuts the flowable composition against the plunger and moves the plunger within the chamber independently from the traveler.
EC 43. The method of any of the preceding or subsequent example combinations, wherein loading the flowable composition within the chamber abuts the flowable composition against the plunger such that no air gaps are formed between the plunger and the flowable composition.
The above-described aspects are merely possible examples of implementations, merely set forth for a clear understanding of the principles of the present disclosure. In some of the figures, various components are illustrated as transparent (represented by dashed lines) to show additional features of the dosing dispenser. It will be appreciated that in other examples, the components need not be transparent and may be opaque and/or have any other colors or shading. Many variations and modifications can be made to the above-described embodiment(s) without departing substantially from the spirit and principles of the present disclosure. All such modifications and variations are intended to be included herein within the scope of the present disclosure, and all possible claims to individual aspects or combinations of elements or steps are intended to be supported by the present disclosure. Moreover, although specific terms are employed herein, as well as in the claims which follow, they are used only in a generic and descriptive sense, and not for the purposes of limiting the described invention, nor the claims which follow.
This application is a continuation of U.S. application Ser. No. 16/545,956, filed on Aug. 20, 2019 and entitled DOSING DISPENSER, which is a continuation of U.S. application Ser. No. 15/847,167, filed Dec. 19, 2017 and entitled DOSING DISPENSER SYSTEM, now issued as U.S. Pat. No. 10,435,226, which claims the benefit of U.S. Provisional Application No. 62/439,280, filed Dec. 27, 2016 and entitled DOSING DISPENSER SYSTEM AND METHOD, both of which are hereby incorporated by reference in their entireties.
Number | Date | Country | |
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62439280 | Dec 2016 | US |
Number | Date | Country | |
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Parent | 16545956 | Aug 2019 | US |
Child | 16807154 | US | |
Parent | 15847167 | Dec 2017 | US |
Child | 16545956 | US |