Material applicator
11382400 · 2022-07-12
Assignee
Inventors
Cpc classification
A45D40/06
HUMAN NECESSITIES
International classification
Abstract
A dispenser, such as for lip balm, has a casing, a manually operable dispense mechanism with an actuation dial, lip balm in the casing, and a cap for covering a dispense end. The dispense mechanism included a snap-in actuator that interfaces with cantilevered fingers unitary with the casing. Finger tips interface the actuator at a retention flange for rotatably retaining the actuator within the casing, the finger tips further interface with circumferentially spaced ribs or nubs rearward of the flange for providing a user perceivable tactile clicking and/or a variable rotation resistance upon rotation of the dial. The casing having an enlarged dispense end, a narrowed lower waist region, an exterior surface include an overmolded softened high friction gripping surface on the casing. The exterior surface may include light transmissive portions defining indicia that extend into the casing interior.
Claims
1. A dispenser of material for application to lips, the dispenser comprising: a casing having a lower end and an upper end, the casing having a casing wall defining a cavity with an axis; an elevator slidingly engaged with the casing wall in the cavity, a stick of material for application to lips being disposed on the elevator and in the cavity; an actuator rotatably secured to the casing, the actuator having a dial positioned at the lower end of the casing and a spindle extending upwardly in the casing from the dial, the spindle having a lower portion attached to the dial, an intermediate portion including a retention flange, and a distal portion, the distal portion having a screw thread and being engaged with the elevator, whereby rotation of the dial moves the elevator axially; a resistance mechanism providing resistance to rotation of the spindle, the resistance mechanism comprising a plurality of cantilevered fingers extending from the lower end of the casing and a plurality of circumferentially spaced ribs on an intermediate portion of the spindle, each cantilevered finger having a distal portion interfacing with the intermediate portion of the actuator below the flange whereby when the actuator is rotated there is intermittent engagement of the distal portions of each cantilevered finger with each of the plurality of circumferentially spaced ribs providing tactile feedback.
2. The dispenser of claim 1, wherein each of the plurality of cantilevered fingers are engaging a lower side of the retention flange thereby capturing the actuator within the casing.
3. The dispenser of claim 1, further comprising a cap and wherein the upper end of the casing has a neck for receiving a cap, the neck recessed radially inward, whereby when the cap is on the neck, the casing has an exteriorly exposed gripping surface below the cap.
4. The dispenser of claim 3, wherein the casing at the exteriorly exposed gripping surface has a maximum outer diameter portion adjacent the cap, and tapers to a minimal outer diameter proximate the dial.
5. The dispenser of claim 1, wherein the casing wall is an inner casing wall and a layer of a thermoplastic elastomer wraps around the inner wall providing a gripping surface, and wherein the inner casing wall has a radial projecting portion that extends through the layer of thermoplastic elastomer and outwardly exposed on the casing.
6. The dispenser of claim 5, wherein the inner casing wall is formed of a light transmissive polymer and the radial projecting portion is unitary with the inner casing wall and is formed of the same material.
7. The dispenser of claim 6, wherein the radial projection portion provides a viewing window into the casing allowing a user to see an amount of lip balm remaining in the dispenser.
8. A dispenser of material for application to lips, the dispenser comprising: a casing having a lower end and an upper end, the casing having a casing wall defining an a cavity with an axis; an elevator slidingly engaged with the casing wall in the cavity, a stick of material for application to lips being disposed on the elevator and in the cavity; an actuator rotatably secured to the casing, the actuator having a screw portion threadably engaged with the elevator and a dial positioned at the lower end of the casing, whereby rotation of the dial moves the elevator axially; wherein the casing wall is an inner casing wall and an outer overmolded wall portion extends therearound, the inner casing wall comprising a first thermoplastic material of a light transmissive polymer and the outer overmolded portion comprising a second thermoplastic material different from the first thermoplastic material, the inner wall including an indicia portion projecting radially outward through the outer overmolded wall portion whereby indicia is outwardly exposed on the casing.
9. The dispenser of claim 8, wherein the inner casing wall is formed of a light transmissive polymer and the radial projection portion is unitary with the inner casing wall and is formed of the light transmissive polymer.
10. The dispenser of claim 8, wherein the casing at the exteriorly exposed gripping surface has a maximum outer diameter portion adjacent the cap, and tapers to a minimal outer diameter proximate the dial.
11. A dispenser of material for application to lips, the dispenser comprising: a casing having a lower end and an upper end, the casing having an inner casing wall defining a cavity with an axis; a stick of material for application to lips being disposed in the cavity; an actuator rotatably secured to the casing, the actuator having a screw portion extending upwardly into the casing cavity and into the stick of material and a dial positioned at the lower end of the casing; wherein the casing has an outer overmolded wall portion extends therearound, the inner casing wall comprising a first thermoplastic material and the outer overmolded portion comprising a second thermoplastic material different from the first thermoplastic material, the inner wall including a portion projecting radially outward through the outer overmolded wall portion whereby the portion is outwardly exposed on the casing.
12. The dispenser of claim 11, wherein the inner casing wall is formed of a light transmissive polymer.
13. The dispenser of claim 11, wherein a plurality of fingers extend inwardly and upwardly from a lower margin of the inner casing wall, the fingers unitary with the inner casing wall, the plurality of fingers engaging a rearward side of a retention flange on the actuator.
14. The dispenser of claim 13, wherein the actuator has a plurality of axially extending ribs positioned around the actuator below the retention flange, whereby when the actuator is rotated, the plurality of fingers engage and disengage the plurality of ribs providing tactile feedback.
15. The dispenser of claim 12, further comprising: an actuator rotatably secured to the casing, the actuator having a spindle with a threaded portion extending upwardly into the casing cavity and a dial connecting to a lower end of the spindle and positioned at the lower end of the casing; a plurality of cantilevered fingers extending axially upward and radially inward from the lower end of the casing and engaging a plurality of ribs or nubs on the spindle below a flange on the spindle for retaining the actuator within the casing and for providing tactile feedback when the actuator is rotated.
16. The dispenser of claim 15, wherein each of the plurality of the fingers extend upwardly at an angle from an axis of the casing of between 30 degrees and 60 degrees, the angle facing downwardly.
17. The material applicator of claim 15, wherein the first thermoplastic material being more rigid than the second thermoplastic material.
18. The dispenser of claim 15, wherein the casing has an outer overmolded wall portion extending around the inner casing wall, the inner casing wall comprising a first thermoplastic material and the outer overmolded portion comprising a second thermoplastic material different from the first thermoplastic material, the inner wall including a portion projecting radially outward through the outer overmolded wall portion whereby the portion is outwardly exposed on the casing.
19. The dispenser of claim 18, wherein the inner casing wall is formed of a light transmissive polymer and the radial projection portion is unitary with the inner casing wall and is formed of the same material.
20. The dispenser of claim 19, wherein the viewing window allows a user to see the amount of dispensing material remaining in the dispenser.
Description
DESCRIPTION OF THE DRAWINGS
(1) The drawings included in the present application are incorporated into, and form part of, the specification. They illustrate embodiments of the present disclosure and, along with the description, serve to explain the principles of the disclosure. The drawings are only illustrative of certain embodiments and do not limit the disclosure.
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(53) While embodiments of the disclosure are amenable to various modifications and alternative forms, specifics thereof have been shown by way of example in the drawings and will be described in detail. It should be understood, however, that the intention is not to limit the disclosure to the particular embodiments described. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the disclosure.
DETAILED DESCRIPTION
(54) Referring to
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(56) Referring to
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(58) In embodiments, the casing 104 may comprise a plurality of cantilevered fingers 126 extending from and supported by the base portion 121 of the casing 104. In embodiments, each cantilevered finger 126 has a distal portion 127 and a base portion 131 fixed to or unitary with the base portion 121 of the casing 104. Each cantilevered finger 126 may extend inwardly and upwardly away from the base portion 121 and lower end 120 of the casing wall 124 toward the central axis 110.
(59) Each distal portions 127 may include a seating portion 129. In embodiments, the seating portion 129 may comprise a concave portion or channel on an inner side of the distal portion 127 of a cantilevered finger 126.
(60) In embodiments, each cantilevered finger 126 may be narrowing in width, as circumferentially measured around the axis 110, from its base portion 131 to its distal portion 127. In embodiments, each cantilevered finger 126 may have an upward bend portion 226. In embodiments, the upward bend portion 226 may be circumferentially formed in the cantilevered finger 126. In embodiments, each cantilevered finger 126 may have two or two or more bend portions 226.
(61) In embodiments, the cantilevered fingers 126 may be spaced from one another and/or may be symmetrically disposed around the axis 110. Each cantilevered finger 126 may be radially aligned with a base rib 118. In embodiments, the casing 104 may comprises four cantilevered fingers 126.
(62) In embodiments, the casing 104, including features addressed above and as shown in the figures, may be one unitary piece. For example, the casing 104 may be a molded unitary piece of polymeric material.
(63) In embodiments, a material applicator may further include an overmold portion or layer 107 on the outer surface 324 of the case wall 124. For example, the overmold layer 107 may be a coating or layer of material, such as a polymeric, thermoplastic material, using conventional overlaying or overmolding techniques, or a layer formed by conventional extrusion coating. In embodiments, the overmold layer 107 may provide a soft, resilient feel to the user. In embodiments, the overmold layer 107 may be positioned in a circumferential channel 207 formed by the outer surface 324 of the casing 104.
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(68) In embodiments, the intermediate portion 140 may include a lower support portion 154, an upper conical or tapered portion 156 and a camming portion 158 disposed between the lower support portion 154 and the upper tapered portion 156. In embodiments, the lower support portion 154 may include a plurality of support gussets or legs 160 extending downward to a top portion of the base portion 128. In some embodiments, the lower support portion 154 includes four gussets 160. The gussets 160 may be flared or angled outwardly from a common central position and may be arranged so that the lower support portion 154 has a cross shape when viewed as a cross-section with the cross-sectional plane being orthogonal to the central axis 110.
(69) In embodiments, the upper tapered portion 156 may have a truncated conical shape with an conical outer surface 157 and a flange portion 256 with a rearward or downwardly facing surface 258 that may be perpendicular to the axis diameter at its lower base. In some embodiments, the angled circumferential outer surface 157 may receive and mate with a lower portion 419 of the outer wall surface 319 of an elevator 108.
(70) In embodiments, the camming portion 158 defines an inner cam cylinder 162 having an outer outer surface 134. In embodiments, the camming portion 158 includes a plurality of ribs 132, each rib 132 running axially on and extending radially from the outer outer surface 134. In embodiments, the ribs 132 of the camming portion 158 may be elongated, having a greater axial length than its circumferential width on the outer surface 134. In embodiments, the inner cam cylinder may be cylindrical with the ribs 132 are circumferentially spaced by outer outer surface 134 portions.
(71) In some embodiments, the actuator 136 may be a unitary piece and may be a molded polymeric unitary piece.
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(74) In embodiments, the material applicator 100 includes a resistance mechanism 130 providing resistance to rotation of the threaded drive spindle 114. In embodiments, the resistance mechanism 130 comprises a plurality of cantilevered fingers 126 supported by the casing 104 and a plurality of ribs 132 supported by the threaded drive spindle 114. In embodiments, each rib 132 extends radially outward beyond a outer surface 134 of the threaded drive spindle 114 and each rib extends upward and downward along the outer surface 134. In embodiments, each cantilevered finger 126 has a distal portion 127 selectively contacting the outer surface 134 and each cantilevered finger 126 is subjected to cantilevered bending so the distal portion of each cantilevered finger 126 is biased toward the outer surface 134. In embodiments, a cam action of each rib 132 causes additional cantilevered bending in the cantilevered fingers 126, whereby resistance to rotation is produced as the cam action of the ribs 132 causes the cantilevered fingers 126 to flex. In embodiments, during rotation of the spindle 114, the ribs 132 slip in and out of seating portions 129 in the distal portions 127 of the cantilevered fingers 126, providing a stepped, tactile feedback to the user.
(75) After the actuator 136 is inserted and seated, an elevator 108 may be lowered onto the spindle 114 to a lower position within the cavity 111 of the casing 104. The cavity may be filled with material 102 and the cap 112 may be secured to the upper end 122 of the casing 104.
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(82) Referring to the figures, an upward direction Z and a downward or lower direction −Z are illustrated using arrows labeled “Z” and “−Z,” respectively. A forward direction Y and a rearward direction −Y are illustrated using arrows labeled “Y” and “−Y,” respectively. A starboard direction X and a port direction −X are illustrated using arrows labeled “X” and “−X,” respectively. The directions illustrated using these arrows are applicable to the apparatus shown and discussed throughout this application. The upward direction is generally the dispense end and opposite the downward direction. Various direction-indicating terms are used herein as a convenient way to discuss the objects shown in the figures. It will be appreciated that many direction indicating terms are related to the instant orientation of the object being described. It will also be appreciated that the objects described herein may assume various orientations without deviating from the spirit and scope of this detailed description. Accordingly, direction-indicating terms such as “upwardly,” “downwardly,” “forwardly,” “backwardly,” should not be interpreted to limit the scope of the invention recited in the attached claims.
(83) The term “portion” when used herein can mean all or part of a component, or an assembly. It may mean less than all of a unitary component, or all of a unitary component, or all of a component of an assembly of a plurality of components.
(84) The following United States patents are hereby incorporated by reference herein: U.S. Pat. Nos. 9,795,205, 9,795,205, 9,585,460, 9,554,636, 9,554,636, 9,433,275, 9,433,275, 9,346,597, 9,339,097, 9,339,097, 9,327,891, 9,265,327, 9,265,327, 9,027,786, 8,899,860, 8,899,860, 8,708,146, 8,511,922, 8,407,879, 7,726,480, 7,621,405, 7,354,215, 7,354,215, 6,838,032, 6,736,267, 6,723,269, 6,688,793, 6,598,767, 6,598,767, 6,572,300, 6,572,300, 6,450,716, 6,419,412, 6,419,412, 6,398,439, 6,364,115, 6,305,385, 6,299,369, 6,299,369, 6,269,982, 6,050,415, 5,899,333, 4,958,731 and 4,784,268; and U.S. Pat. Publication Nos. US20180086542, US20180086542, US20180086541, US20180086541, US20180207413, US20160174686 and US20160174685. The above references to U.S. patents in all sections of this application are herein incorporated by references in their entirety for all purposes. Components illustrated in such patents may be utilized with embodiments herein. Incorporation by reference is discussed, for example, in MPEP section 2163.07(B).
(85) The above references in all sections of this application are herein incorporated by references in their entirety for all purposes. All of the features disclosed in this specification (including the references incorporated by reference, including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive.
(86) Each feature disclosed in this specification (including references incorporated by reference, any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic series of equivalent or similar features.
(87) The invention is not restricted to the details of the foregoing embodiment(s). The invention extends to any novel one, or any novel combination, of the features disclosed in this specification (including any incorporated by reference references, any accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed The above references in all sections of this application are herein incorporated by references in their entirety for all purposes.
(88) Although specific examples have been illustrated and described herein, it will be appreciated by those of ordinary skill in the art that any arrangement calculated to achieve the same purpose could be substituted for the specific examples shown. This application is intended to cover adaptations or variations of the present subject matter. Therefore, it is intended that the invention be defined by the attached claims and their legal equivalents, as well as the following illustrative aspects. The above described aspects embodiments of the invention are merely descriptive of its principles and are not to be considered limiting. Further modifications of the invention herein disclosed will occur to those skilled in the respective arts and all such modifications are deemed to be within the scope of the invention.