APPARATUS AND METHOD FOR ASSEMBLING A HEATER ASSEMBLY FOR A NICOTINE POD ASSEMBLY
20210329976 · 2021-10-28
Assignee
Inventors
- Gregory L. Nelson (Chester, VA, US)
- Bipin Patil (Richmond, VA, US)
- Craig GUNN (Richmond, VA, US)
- Rangaraj S. Sundar (Richmond, VA, US)
Cpc classification
A24F40/42
HUMAN NECESSITIES
A61M2207/00
HUMAN NECESSITIES
International classification
A24F40/42
HUMAN NECESSITIES
Abstract
An apparatus for assembling a heater assembly for a nicotine pod assembly includes a base, a wick feed, a slide, and a holder. The wick feed extends toward the base and defines a channel configured to receive a wick structured to draw a nicotine pre-vapor formulation via capillary action. The slide is configured to move along a plane on a top face of the base. The holder is disposed on the top face of the base.
Claims
1. An apparatus for assembling a heater assembly for a nicotine pod assembly, the apparatus comprising: a base; a wick feed extending toward the base and defining a channel configured to receive a wick structured to draw a nicotine pre-vapor formulation via capillary action; a slide configured to move along a plane on a top face of the base; and a holder disposed on the top face of the base.
2. The apparatus of claim 1, further comprising: a wick retainer extending parallel and adjacent to the wick feed for retaining the wick in the channel.
3. The apparatus of claim 1, further comprising: a cutter having a blade configured to slide along a top surface of the slide to cut the wick.
4. The apparatus of claim 1, wherein the wick feed is configured to rotate relative to the base.
5. The apparatus of claim 1, further comprising: a block fixed to the base, wherein the wick feed is rotatably attached to and supported by the block.
6. The apparatus of claim 1, wherein the holder is configured to receive a support of the heater assembly therein, the holder being configured to fix the support relative to the base for inserting the wick.
7. The apparatus of claim 6, wherein the channel in the wick feed is configured to guide the wick into alignment with a heater on the support.
8. The apparatus of claim 1, wherein the wick feed extends orthogonally to the base.
9. The apparatus of claim 1, wherein the holder includes a locking finger configured to engage a support of the heater assembly and retain the support within the holder.
10. The apparatus of claim 1, wherein the holder is configured to secure a support of the heater assembly, the slide includes a front face that is orthogonal to the top face of the base, and the slide is configured to contact a finger of a heater on the support to move the finger to a vertical position so as to compress the wick.
11. The apparatus of claim 1, wherein the wick feed includes a plate and a retainer, the plate is disposed orthogonal to the base and defines the channel, and the retainer is disposed orthogonal to the base and adjacent to the plate, the retainer and the plate defining a slot for guiding the wick.
12. The apparatus of claim 11, further comprising: a block fixed to the base, wherein the plate is rotatably attached to and supported by the block.
13. The apparatus of claim 12, wherein the retainer is fixed to the plate such that the retainer and the plate are configured to rotate relative to the base and the block.
14. The apparatus of claim 1, wherein the holder is configured to secure a support of the heater assembly and to lock a position of the support relative to the base.
15. The apparatus of claim 14, wherein the holder includes a locking finger configured to engage the support and retain the support within the holder.
16. The apparatus of claim 1, further comprising: a blade configured to slide along a top surface of the slide.
17. A method of assembling a heater assembly for a nicotine pod assembly, the method comprising: securing, with a holder, a support of the heater assembly relative to a base; aligning, with a guide plate mounted to the base, a wick strip in a heater of the support, the wick strip structured to draw a nicotine pre-vapor formulation via capillary action; cutting, with a blade configured to slide relative to the base, a portion of the wick strip; clamping, with a slide configured to slide relative to the base, a portion of the heater around the portion of the wick strip; and releasing, with the holder, the support from the base.
18. The method of claim 17, wherein the securing the support relative to the base includes locking the support in the holder.
19. The method of claim 17, wherein the aligning the wick strip in the heater of the support includes inserting the wick strip into a channel in the guide plate.
20. The method of claim 17, wherein the aligning the wick strip in the heater of the support includes inserting the wick strip into a gap defined by a channel in the guide plate and a retainer plate fixed to the guide plate.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The various features and advantages of the non-limiting embodiments herein may become more apparent upon review of the detailed description in conjunction with the accompanying drawings. The accompanying drawings are merely provided for illustrative purposes and should not be interpreted to limit the scope of the claims. The accompanying drawings are not to be considered as drawn to scale unless explicitly noted. For purposes of clarity, various dimensions of the drawings may have been exaggerated.
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DETAILED DESCRIPTION
[0063] Some detailed example embodiments are disclosed herein. However, specific structural and functional details disclosed herein are merely representative for purposes of describing example embodiments. Example embodiments may, however, be embodied in many alternate forms and should not be construed as limited to only the example embodiments set forth herein.
[0064] Accordingly, while example embodiments are capable of various modifications and alternative forms, example embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that there is no intent to limit example embodiments to the particular forms disclosed, but to the contrary, example embodiments are to cover all modifications, equivalents, and alternatives falling within the scope of example embodiments. Like numbers refer to like elements throughout the description of the figures.
[0065] A nicotine electronic vaping device, or nicotine e-vaping device, includes a heating element that vaporizes a nicotine pre-vapor formulation to produce a nicotine vapor. The nicotine pre-vapor formulation may be enclosed in a housing or nicotine pod assembly. The nicotine electronic vaping device includes a power supply, such as a rechargeable battery, arranged in the device. The power supply is electrically connected to a heater assembly for the nicotine pod assembly. The power supply provides power to the heater assembly such that the heater assembly heats to a temperature sufficient to convert the nicotine pre-vapor formulation in the nicotine pod assembly to a nicotine vapor. The nicotine vapor exits the nicotine electronic vaping device through a mouthpiece including at least one outlet.
[0066] The nicotine pre-vapor formulation is a material or combination of materials that may be transformed into the nicotine vapor. For example, the nicotine pre-vapor formulation may include a liquid, solid, and/or gel formulation. These may include, for example and without limitation, water, oil, emulsions, beads, solvents, active ingredients, ethanol, plant extracts, nicotine, natural or artificial flavors, vapor formers such as glycerin and propylene glycol, and/or any other ingredients that may be suitable for vaping. During vaping, the nicotine electronic vaping device is configured to heat the nicotine pre-vapor formulation to generate a nicotine vapor. Nicotine vapor, nicotine aerosol, and nicotine dispersion are used interchangeably and refer to the matter generated or outputted by the devices disclosed, claimed, and/or equivalents thereof, wherein such matter contains nicotine. The nicotine e-vaping device may be regarded as an electronic nicotine delivery system (ENDS).
[0067]
[0068] Referring to
[0069] In at least one example embodiment, a detailed illustration of the base 14 is shown in
[0070] In the example embodiment shown in
[0071] The sidewall 70 may include a notch 88 at a position of the holder 30. Thus, the notch 88 may separate the sidewall 70 into two parts 70(a) and 70(b).
[0072] In the example embodiment shown in
[0073] The base 14 may additionally include a holder cutout 106 aligned with the longitudinal channel 38 and the apertures 94 for receiving the holder 30. The holder cutout 106 may correspond in width to a width of the holder 30, thus simplifying the assembly of the holder 30 on the base 14.
[0074] At an intersection between the longitudinal channel 38 and the lateral channel 66, a support cutout 110 may be defined by the base 14. The support cutout 110 may provide a track or guide for inserting a component of a heater assembly for a nicotine pod assembly into the holder 30. A width of the support cutout SW may be less than the width W1 of the longitudinal channel 38 and a width HCW of the holder cutout 106. The support cutout 110 may extend from the intersection between the longitudinal channel 38 and the lateral channel 66, beyond a plane of the sidewall 70, into notch 88, and to a section of the base 14 having the holder cutout 106.
[0075]
[0076] The guide 18 may include second apertures 118, a third aperture 122, and a slot 126. The slot 126 may be positioned longitudinally along a center of the guide 18 above the channel 38 in the base 14. The second apertures 118 may be positioned along each side 130, 134 and at a front end 138 of the slot 126. The second apertures 118 may receive pins, rods, or screws that extend through the second apertures 118 to apply light pressure on the slide 22 to ensure the motion of the slide 22 is controlled by the actuation of the pin 150. The third aperture 122 receive a pin, rod, or screw to set the functional travel distance of the slide 22 and may be positioned in a lateral center of a front face 142 of the guide 18 and extend through to the front end 138 of the slot 126.
[0077]
[0078] The pin 150 may extend orthogonally to the plate 146 and may be received within the slot 126 in the guide 18, as illustrated, for example, in
[0079] Referring to
[0080] The wick guide 26 may be fixed to the block 34 by a fastener, such as a shoulder screw, 202, as illustrated in
[0081] The wick guide 26, as illustrated in example embodiments of
[0082] The wick retainer 238 may be a flat plate that aligns with (and is fixed to) the wick feed 234 to define a guide or track 246 with the channel 242 in the wick feed 234 in which the wick for nicotine wicking is inserted during assembly (discussed in further detail below). The wick retainer 238 may include apertures 250 that align with apertures 254 (
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[0084] In some example embodiments, the lock 266 may further include a toggle 282 and at least one locking finger 286. The lock 266 may be rotatably fixed to the base 262 at apertures 290 in the toggle 282. Apertures 290 in the toggle 282 may align with apertures 294 in the base 262 to receive a rod or pin therein. The rod or pin may provide a pivot point about which the toggle 282 may rotate. The toggle 282 may include a projection or lever 298 configured to be manipulated by an assembly technician to move the toggle 282 between a first, forward position and a second, rearward position. In the first position, the locking fingers 286 may be in an open, or unlocked, position (further described below), and in the second position, the locking fingers 286 may be in a closed, or locked, position (further described below).
[0085] The locking fingers 286 may be fixed to a front face 302 of the toggle 282 and may rotate with the rotation of the toggle 282. In some example embodiments, three locking fingers 286 may be fixed to the toggle 282. However, it is understood that any number of locking fingers 286 may be included. In some example embodiments, each of the locking fingers 286 may be a plate including a rectangular body 306 and a hook 310 (
[0086] A tab 322 on an opposite side of the toggle 282 from the front face 302 contacts the resilient member 270 (e.g., a spring). The resilient member 270 is a flat, plate-like spring having a body 326 and a tab or projection 330 extending from the body 326. The body 326 of the resilient member 270 is fixed to the base 262 at apertures 334 by fasteners (for example only, screws or bolts). Apertures 334 align with apertures 278 in the base 262 and are configured to receive the fasteners. The tab 330 extends similar to a cantilever beam and overlays the tab 322 of the toggle 282. The tab 330 of the resilient member 270 provides a counter force on the toggle 282 to bias the toggle 282 in the second, rearward, position such that the locking fingers 286 are biased in the locked, closed, position.
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[0088] The cutter 338 may be slideable along the top surface 154 of the slide 22 from a first position to a second position. In the first position, the cutter 338 may be disposed on the top surface 154 of the slide 22 between the wick guide 26 and the guide 18. In the second position, the cutter 338 may be disposed on the top surface 154 of the slide 22 with the blade 346 disposed adjacent the holder 30 and under the wick guide 26.
[0089] Still referring to the example embodiment shown in
[0090] In at least one example embodiment, the wick pad 500 (or nicotine wick pad) may include filaments (or threads) having a capacity to draw the nicotine pre-vapor formulation via capillary action. For example, the wick pad 500 may be a sheet of glass (or ceramic) fibers or filaments woven together. In at least one example embodiment, the wick pad 500 may include any suitable material or combination of materials. Examples of suitable materials may be, but not limited to, glass, ceramic-based, or graphite-based materials.
[0091] The wick pad 500 may have any suitable capillary drawing action to accommodate nicotine pre-vapor formulations having different physical properties such as density, viscosity, surface tension and vapor pressure. The capillary drawing action is the movement of the nicotine pre-vapor formulation (e.g., liquid with nicotine and other substances dissolved therein) within the spaces of the porous wick pad 500 material due to the forces of adhesion, cohesion, and surface tension. Capillary action occurs when molecules of a liquid stay close together (cohesion) while being attracted to and adhering to internal surfaces of a porous structure (adhesion). Notably, capillary action occurs when the adhesion of the molecules of the liquid to the wall of the structure is stronger than the cohesive forces between the molecules. Because the nicotine pre-vapor formulation may include various substances (such as, without limitation water, oil, emulsions, beads, solvents, active ingredients, ethanol, plant extracts, nicotine, natural or artificial flavors, vapor formers such as glycerin and propylene glycol, and/or any other ingredients that may be suitable for vaping, as previously mentioned), a wicking material structured to draw the nicotine pre-vapor formulation may be designed for the specific formulation. Therefore, the material of the wick pad 500 may have a different structure and/or compound to promote capillary action for a specific nicotine pre-vapor formulation. For example, the diameter of the pores and/or dimension of the interstitial spaces in the wick pad 500 material may be sized appropriately to facilitate the drawing of the nicotine pre-vapor formation via capillary action based on the physical properties of the formulation (e.g., surface tension) and the material (e.g., hydrophilicity). For example, a size of the capillary space may need to increase as a density of the liquid increases. Additionally, in an example embodiment, the wick pad 500 may be non-conductive.
[0092] Although the example wick pad 500 is illustrated as a circular sheet in
[0093] As illustrated in
[0094] An aperture 512 may be on one end of each channel 508. In some embodiments, the aperture 512 may be on alternating ends of the channels 508. The aperture 512 on the end of the channel 508 may facilitate insertion of a blade 516 (further described below). With the aperture 512 on alternating ends of the channels 508, the blade 516 may be inserted and sliced through each channel in a more efficient manner.
[0095] At step 412, the blade 516, or razor, is sliced through each channel 508 in the slicing guide 504 to cut or divide the wick pad 500 into wick strips 520 (
[0096] As illustrated in
[0097] At step 416, the slicing guide 504 is removed and the wick strips 520 are separated from the wick pad 500. As illustrated in
[0098] At step 420, the wick strip 520 is inserted in the guide or track 246 of the wick guide 26. As illustrated in
[0099] At step 424, the end of the wick strip 520 is removed using the cutter 338. As illustrated in
[0100] At step 428, the wick guide 26 is rotated about the fastener 202. In at least one example embodiment, the wick guide 26 is rotatably fixed to the block 24 by a fastener 202. The body 210 of the fastener 202 extends through the wick retainer 238, the wick plate 234, and the aperture 222 in the block 24. A projection or other portion extending from a back side of the wick plate 234 may slide within the track 258 in the block 34 as the wick guide 26 rotates relative to the block 24. As illustrated in
[0101] At step 432, the lever 298 on the toggle 282 of the lock 266 is engaged to move the locking fingers 286 to the first position such that the fingers are unlocked and in an open position. In some embodiments, the lock 266 may be rotatably fixed to the base 262 to rotate about a rod or pin within apertures 290 in the toggle 282. The locking fingers 286 may rotate with the rotation of the toggle 282. In one embodiment, as illustrated in
[0102] The tab 322 on the opposite side of the toggle 282 from the front face 302 contacts the resilient member 270. The resilient member 270 is a flat, plate-like, spring having a body 326 and a tab or projection 330 extending from the body 326. The body 326 of the resilient member 270 is fixed to the base 262. The tab 330 extends similar to a cantilever beam and overlays the tab 322 of the toggle 282. The tab 330 of the resilient member 270 provides a counter force on the toggle 282 to bias the toggle 282 in the second, rearward, position such that the locking fingers 286 are biased in the locked, closed, position.
[0103] Thus, when the lever 298 on the toggle 282 of the lock 266 is engaged to move the locking fingers 286 to the first position, a force is exerted on the resilient member 270 by the tab 322.
[0104] At step 436, a preliminary heater arrangement 524 (or preliminary nicotine heater arrangement) for a nicotine pod assembly is inserted into the holder 30. As illustrated in
[0105] The heating element 532 may extend fully or partially across a width of the base 528. In some example embodiments, the heating element 532 may be in contact (for example, direct contact) with an assembled wick (further described below).
[0106] The holder 30 is disposed in the holder cutout 106 of the base 14 such that the notch 88 exists between the holder 30 and the base 14 at a location above the support cutout 110. Thus, as the preliminary heater arrangement 524 for the nicotine pod assembly is inserted into the holder 30, the base 528 is inserted into the support cutout 110 and notch 88, in a position at least partially under the holder 30.
[0107] The preliminary heater arrangement 524 for the nicotine pod assembly is inserted into the holder 30 until the first set of wire loops 536a contact the holder 30 at a location near the slots 274 on the holder 30.
[0108] At step 440, the lever 298 of the toggle 282 is released such that the toggle 282 returns to the second position. As previously stated, the tab 330 of the resilient member 270 provides a counter force on the toggle 282 to bias the toggle 282 in the second, rearward, position such that the locking fingers 286 are biased in the locked, closed, position. As shown in
[0109] At step 444 the wick guide 26 is rotated counterclockwise to a position where the longitudinal axis A of the wick guide 26 is parallel to a plane on the top surface 100 of the base 14. As previously stated, the wick guide 26 is rotatably fixed to the block 24 by a fastener 202. The body 210 of the fastener 202 extends through the wick retainer 238, the wick plate 234, and the aperture 222 in the block 24. The projection or other portion extending from the back side of the wick plate 234 may slide within the track 258 in the block 34 as the wick guide 26 rotates relative to the block 24. The wick guide 26 may be rotated from the position where the longitudinal axis A of the wick guide 26 intersects the plane on the top surface 100 of the base 14 to the position where the longitudinal axis A of the wick guide 26 is parallel to the plane on the top surface 100 of the base 14.
[0110] At step 448, the wick strip 520 is slid into the channel 242 in the wick guide 26 to a position contacting the top surface 540 of the base 528 of the preliminary heater arrangement 524 for the nicotine pod assembly. As illustrated in
[0111] At step 452, the pin 150 of the slide 22 is moved to the fully-forward position, where the pin 150 contacts the front end 138 of the slot 126 and the plane along the front face 174 of the tab 170 on the slide 22 aligns with the plane along the sidewall 70 of the lateral channel 66.
[0112] As illustrated in
[0113] At step 456, the wick strip 520 is cut to create a wick 548 (or nicotine wick). In some embodiments, the end of the wick strip 520 is removed using the cutter 338. As illustrated in
[0114] At step 460, the wick guide 26 is rotated clockwise. As illustrated in
[0115] At step 464, the pin 150 of the slide 22 is moved to release the heater assembly 524′ (or nicotine heater assembly) for the nicotine pod assembly. In some embodiments, the pin 150 moves to the fully-rearward position as shown in
[0116] At step 468, the lever 298 of the toggle 282 is engaged to release the lock 266. Engagement of the lever 298 may move the locking fingers 286 to the first position such that the fingers are unlocked and in the open position. In some embodiments, the lock 266 may be rotatably fixed to the base 262 to rotate about a rod or pin within apertures 290 in the toggle 282. The locking fingers 286 may rotate with the rotation of the toggle 282. In one embodiment, as illustrated in
[0117] The tab 322 on the opposite side of the toggle 282 from the front face 302 contacts the resilient member 270. The resilient member 270 extends similar to a cantilever beam and overlays the tab 322 of the toggle 282. The resilient member 270 provides a counter force on the toggle 282 to bias the toggle 282 in the second, rearward, position such that the locking fingers 286 are biased in the locked, closed, position. Thus, when the lever 298 on the toggle 282 of the lock 266 is engaged to move the locking fingers 286 to the first position, a force is exerted on the resilient member 270 by the tab 322.
[0118] At step 472, the heater assembly 524′ for the nicotine pod assembly is removed from the holder 30. As illustrated in
[0119] At step 476, the lever 298 of the toggle 282 is released such that the toggle 282 returns to the second position. As previously stated, the tab 330 of the resilient member 270 provides a counter force on the toggle 282 to bias the toggle 282 in the second, rearward, position such that the locking fingers 286 are biased in the locked, closed, position.
[0120] At step 480, method 400 ends.
[0121] Now referring to
[0122] It should be understood that when an element or layer is referred to as being “on,” “connected to,” “coupled to,” or “covering” another element or layer, it may be directly on, connected to, coupled to, or covering the other element or layer or intervening elements or layers may be present. In contrast, when an element is referred to as being “directly on,” “directly connected to,” or “directly coupled to” another element or layer, there are no intervening elements or layers present. Like numbers refer to like elements throughout the specification. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items.
[0123] It should be understood that, although the terms first, second, third, or the like, may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers, and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer, or section from another region, layer, or section. Thus, a first element, component, region, layer, or section discussed below could be termed a second element, component, region, layer, or section without departing from the teachings of example embodiments.
[0124] Spatially relative terms (e.g., “beneath,” “below,” “lower,” “above,” “upper,” and the like) may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It should be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “below” or “beneath” other elements or features would then be oriented “above” the other elements or features. Thus, the term “below” may encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
[0125] The terminology used herein is for the purpose of describing various example embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “includes,” “including,” “comprises,” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
[0126] Example embodiments are described herein with reference to cross-sectional illustrations that are schematic illustrations of idealized embodiments (and intermediate structures) of example embodiments. As such, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, example embodiments should not be construed as limited to the shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing.
[0127] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which example embodiments belong. It will be further understood that terms, including those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
[0128] Example embodiments have been disclosed herein. It should be understood that other variations may be possible. Such variations are not to be regarded as a departure from the spirit and scope of the present disclosure, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.