Pill crushing cup with rotational locking lugs

Abstract

A pill crushing apparatus for use with first and second nestable cups comprising a first cup holder which is moved linearly toward a second cup mounting surface holding a second cup. The first cup holder rotates relative to the rotationally fixed second cup. During the crushing process, the pills first may begin to crush against the linear load being applied thereto, and thereafter grind into a fine powder due to the rotational force of the first cup against the second cup. The first cup and second cup have different sidewall angles to promote pill crushing while inhibiting migration of the crush material to prevent the crushed material from reaching the open gap between the top perimeters of the nesting cups. Each cup includes a plurality of lugs having a curved profile configured to engage respective recesses on the cup holders. Each cup is fabricated through thermoforming or vacuum forming techniques.

Claims

1. A pill cup adapted for use with a pill crushing apparatus, the pill crushing apparatus including a cup holder configured to removably hold the pill cup and a cup mating surface axially aligned and insertable within the pill cup such that a rotational interaction between the pill cup and the cup mating surface imparts a grinding force against one or more pills held between the pill cup and the cup mating surface, the pill cup comprising: a) a bottom wall; b) an integral upwardly extending sidewall; and c) an upper perimeter flange wherein said upper perimeter flange includes a plurality of annularly spaced locking lugs configured to align with and engage a plurality of complementary spaced recesses on the cup holder such that each respective locking lug engages substantially all of its respective recess.

2. The pill cup of claim 1 wherein said bottom wall includes a radial pattern of fluted sections.

3. The pill cup of claim 1 wherein said upwardly extending sidewall has an inner wall surface having a vertical cross section different than a vertical cross section of an external surface of said cup mating surface.

4. The pill cup of claim 3 wherein said upwardly extending sidewall includes an upper wall segment having an outwardly curved surface and a lower wall segment having an inwardly curved surface.

5. The pill cup of claim 4 wherein said outwardly curved surface has a radius of about 1.380 mm (0.054 inches) and said inwardly curved surface has a radius of about 1.662 mm (0.065 inches).

6. The pill cup of claim 1 wherein each of said locking lugs has a curved transverse cross section.

7. The pill cup of claim 6 wherein each of said curved transverse cross section forms an open completed circle.

8. The pill cup of claim 7 wherein said curved transverse cross section forms a solid completed circle.

9. A pill cup assembly having nestable first and second cups adapted for use with a pill crushing apparatus, the pill crushing apparatus including a cup holder configured to removably hold the first cup and a cup mounting surface configured to axially align and releasably engage the second cup with the first cup such that rotation of one cup relative to the other cup imparts a grinding force against one or more pills held between the first and second cups, the pill cup assembly comprising: a first cup and a second cup, wherein each of said first and second cups comprises: a) a bottom wall; b) an integral upwardly extending sidewall; and c) an upper perimeter flange wherein said upper perimeter flange includes a plurality of annularly spaced locking lugs configured to align with and engage a plurality of complementary spaced recesses on a respective cup holder or a respective cup mounting surface such that each respective locking lug engages substantially all of its respective recess.

10. The pill cup assembly of claim 9 wherein each of said bottom walls includes a complementary radial pattern of fluted sections.

11. The pill cup of claim 9 wherein said upwardly extending sidewall of said first cup has an inner wall surface having a vertical cross section different than a vertical cross section of an outer wall surface of said upwardly extending sidewall of said second cup.

12. The pill cup assembly of claim 11 wherein said upwardly extending sidewall of said first cup includes an upper wall segment having an outwardly curved surface and a lower wall segment having an inwardly curved surface and wherein upwardly extending sidewall of said second cup includes an upper wall segment and a lower wall segment with the lower wall segment of the second cup adapted to interface closely with said lower wall segment of said first cup so as to promote said grinding force and wherein said upper wall segment of said first cup and the upper wall segment of the second cup create a gap which tapers outwardly in a direction toward said upper perimeter flange of said first cup.

13. The pill cup assembly of claim 12 wherein said outwardly curved surface has a radius of about 1.380 mm (0.054 inches), said inwardly curved surface has a radius of about 1.662 mm (0.065 inches), said upper wall segment of said second cup extending at an angle of about 100° with respect to said upper perimeter flange of said second cup, and wherein said lower wall segment of said second cup extends at an angle of about 170° with respect to said upper wall segment of said second cup.

14. The pill cup assembly of claim 9 wherein each of said locking lugs has a curved transverse cross section.

15. The pill cup assembly of claim 14 wherein said curved transverse cross section forms an open completed circle.

16. The pill cup assembly of claim 15 wherein said curved transverse cross section forms a closed completed circle.

Description

DESCRIPTION OF THE DRAWING FIGURES

(1) The above-mentioned and other features and advantages of this invention, and the manner of attaining them, will become apparent and be better understood by reference to the following description of the invention in conjunction with the accompanying drawing, wherein:

(2) FIG. 1 is a perspective view of the main housing body;

(3) FIG. 2 is a perspective view of the underside of the lid;

(4) FIG. 3A is a perspective view to an embodiment of the pill crushing machine without the main body housing;

(5) FIG. 3B is a front elevational view thereof;

(6) FIG. 3C is a side elevational view thereof;

(7) FIG. 3D is a top plan view thereof;

(8) FIG. 4 is a cross-sectional view thereof as taken generally along the line 4-4 of FIG. 3D;

(9) FIG. 5 is an exploded, elevational view thereof;

(10) FIGS. 6A-6D are views of the top cup;

(11) FIGS. 7A-7D are views of the bottom cup;

(12) FIGS. 8A and 8B are side elevational views of the top and bottom cups in their nested condition at the beginning of the pill crushing operation and near the end of the pill crushing operation, respectively;

(13) FIGS. 9A and 9B are enlarged, upper and lower end perspective views, respectively, of the rotator base element;

(14) FIGS. 10A and 10B are enlarged, upper and lower end perspective views, respectively, of the second base element;

(15) FIG. 11 is a perspective view of the first axial translation element;

(16) FIG. 12 is a perspective view of the second axial translation element;

(17) FIG. 13 is a perspective view of the bottom cup holder;

(18) FIG. 14 is a perspective view of the second axial translation element;

(19) FIG. 15 is an enlarged, fragmented, perspective view of a prong element;

(20) FIG. 16 is a view of an alternative embodiment of nestable bottom and top cups with an associated bottom cup holder;

(21) FIGS. 17A and 17B are cross-sectional views of the nestable bottom and top cups shown in FIG. 16; and

(22) FIGS. 18A, 18B and 18C are cross-sectional views of further alternative embodiments of a bottom cup suitable for use within a pill crushing machine of the present invention.

DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT

(23) Referring now to the drawings, there is seen in the figures a pill crushing machine designated generally by the reference numeral 10 having a main housing body 12 and lid 14 which is hinge connected to housing body 12 via hinge elements 12a and 14a (see FIGS. 1 and 2). While the housing body 12 seen in FIG. 1 is not shown in the remaining figures for the sake of clarity, it is understood that it would extend between base 13 and lid 14 (see FIGS. 3A-5).

(24) As seen in FIGS. 5, 6A-6D, 7A-7D, and 8A and 8B, a pair of nestable cups 16 and 18 are provided for use with machine 10 which are preferably single use and formed of a suitable plastic. In a preferred embodiment shown, bottom cup 16 and top cup 18 have different dimensions, with top cup 18 (which nests inside bottom cup 16 with pills “P” to be crushed deposited therebetween as seen in FIG. 8A) being overall generally smaller and having side walls 18a and 18b (which meet at line 18L) which are straight in the direction from lower wall segment 18b to upper perimeter flange 18c (seen best in the cross-section of FIGS. 6D and 8A and 8B). Upper wall segment 18a extends at an angle A1 of about 100° with respect to perimeter flange 18c, and lower wall segment 18b extending at an angle A2 of about 170° with respect to upper wall segment 18a. Rather than being straight, upper wall segment 16a of bottom cup 16 includes having an outwardly curved surface having a radius of about 1.380 mm and a lower wall segment 16b (which meets upper wall segment 18a at line 18L) having an inwardly curved surface having a radius of about 1.662 mm. The inwardly curved lower wall segment 16b interfaces closely with top cup lower segment wall 18b to promote fine grinding of the pill particles therebetween while the outwardly curved surface of bottom cup upper wall segment 16a interfaces with the sharper angled (i.e., more vertically inclined that the lower wall segment) straight upper wall segment 18a of top cup 18 so as to create a large enough space to inhibit pill powder migration as explained further below. The cup bottom walls 16d and 18d are of a non-planar configuration and include a radial pattern of fluted sections 16d′ and 18d′, respectively. Top cup perimeter flange 18c includes a plurality of annularly spaced, upwardly-facing (in a direction away from bottom wall 18d) protrusions 18e, and bottom cup perimeter flange 16c includes a plurality of annularly spaced, downwardly-facing (in a direction toward bottom wall 16d) protrusions 16e, the purpose of which is described below.

(25) Lid 14 includes a top cup holder 20 having a geometry complimentary to the geometry of the respective inside surfaces of the top cup 18 to be removably placed thereon which thus forms a mating fit between the two when the top cup 18 is removably mounted onto the top cup holder 20. In a further preferred embodiment, a spring loaded plunger 21 may be provided at approximately the center of top cup holder 20 which biases the top cup 18 against the bottom cup 16 when the lid is closed. To prevent rotation of top cup 18 during the pill crushing operation, top cup protrusions 18e may be aligned and engaged with complementary spaced, respective recesses 20a formed about the perimeter of top cup holder 20 (see FIG. 2).

(26) Bottom cup 16 may be removably positioned within complementary shaped bottom cup holder 22. To ensure that bottom cup 16 will rotate together with bottom cup holder 22 during the pill crushing operation, bottom cup protrusions 16e may align with and be engaged with complementary spaced respective recesses 22d formed about the perimeter of bottom cup holder 22.

(27) Bottom cup holder 22 (FIGS. 3-5 and 13) includes a bottom wall 22a, side wall 22b and top perimeter edge 22c having a plurality of annularly spaced recesses 22d which may align with and engage protrusions 16e of bottom cup 16 when placed therein. Bottom cup holder 22 fits within the complementary shaped center recess 24a of rotator base element 24 (see also FIGS. 9A and 9B). Rotator base element 24 includes a lower wall segment 24b which is radially spaced from a center stem 24c having a plurality of annularly spaced vanes 24d extending radially outwardly therefrom (see FIG. 9B). Bottom cup holder 22 includes a plurality of annularly spaced rib elements 22e which may align with and engage a like plurality of annularly spaced openings 24e formed along the lip 24f and extending partly down the side wall 24g thereof (see FIG. 9A). As such, bottom cup holder 22 is rotationally fixed to rotator base element 24.

(28) Rotator base element 24 may be rotationally fixed to a second base element 26 via vanes 24d aligning with and fitting within respective walled slots 26b which radially extend from center aperture 26a (see FIGS. 4, 9B and 10A). Second base element 26 includes a lower annular wall segment 26c defining a center bore 26d (see FIG. 10B). A third base element 36 (see FIGS. 4, 5 and 12) includes a center stem portion 36c which telescopes into center bore 26d of second base element 26. As seen best in FIG. 12, third base element 36 further includes a ring element 36a which lies concentrically radially outwardly of center stem portion 36c which forms an annular channel 36d therebetween. With center stem portion 36c inserted into center bore 26d, annular wall segment 26c resides within annular channel 36d (see FIG. 4).

(29) Third base element is seen to further include a shoulder portion 36b and stem portion 36e having a center bore 36g into which the output shaft of a drive motor (not shown) positioned there beneath may extend. Shoulder portion 36b is further seen to taper in a spiral fashion from a minimum width portion 36b′ to a maximum width portion 36b″ which forms a step 36b′″ for reasons explained below.

(30) A first axial translation element 30 having internal threads 30a and external splined surface 30c (see FIGS. 4, 5 and 11) is fixed to second base element 26, e.g., via screws passed through holes 30b which align with respective holes 26f (see also FIG. 10B). A second axial translation element 34 is provided having threads 34a on the outer wall surface thereof and terminating in a ledge portion 34b (FIG. 14). The lower surface 34c is seated against shoulder portion 36b of third base element 36 (FIG. 12) with ledge portion 34b abutting step 36b′″. Second axial translation element 34 resides within first axial translation element 30 with threads 30a engaging threads 34a (see FIG. 4).

(31) Third base element stem portion 36e extends into a center bore 40a of a housing mount 40 with stem clips 36f (FIG. 12) engaging and fixing third base element 36 to mount 40. Shoulder portion 36b is thus seated upon ledge 40b of housing mount 40.

(32) A chip guard 50 (FIGS. 4 and 5) is provided which encircles the nesting cups 16, 18 within machine 10. In FIG. 4, cups 16,18 are not shown for the sake of clarity, but would reside in the space “S” between top cup holder 20 and bottom cup holder. The juncture of the cup perimeters wherein gap “G” is formed (FIG. 8) would reside in area indicated by reference arrow SG in FIG. 4. With chip guard wall segment 50a located radially outwardly of space SG, any pill fragments “F” which could otherwise escape through this area are physically blocked by the chip guard.

(33) In a preferred embodiment, chip guard 50 has a length extending from top cup holder base wall 20a to a position along rotator base element outer side wall 24e. A ring element 52 is provided which attaches to chip guard 50 via clips 50b integrally formed in the chip guard 50. One or more spring loaded plunger elements 54 connect ring 50 to second base element 26 at holes 26′. As such, spring loaded plunger elements 54 act to bias ring 52 and hence also chip guard 50 toward and against top cup holder base 20a. If desired, one or more notches 50c may be provided adjacent the top edge 50d which provide open access to the nested cups. In an alternate embodiment, plunger elements 54 may be electronically controlled whereby they may be signaled to retract when desired which acts to pull ring 52 and chip guard 50 down (toward housing base 13). The retracted position of chip guard 50 would provide access to the cup sitting in bottom cup holder 22.

(34) In yet another embodiment, chip guard 50 may be fixed to and move together with lid 14 such that when lid 14 is opened, chip guard 50 is lifted away from bottom cup holder 22. Likewise, when lid 14 is closed in preparation for pill crushing operation, guard 50 is lowered into its physical blocking position adjacent gap G.

(35) To crush one or more pills, bottom cup 16 is placed in bottom cup holder 22. Pills “P” are placed inside bottom cup 16 and a top cup 18 is placed (nested) inside bottom cup 16 with the pills P located therebetween (FIG. 8). Lid 14 is closed and latched at 15 (FIGS. 3A-3D). The motor (not shown) is activated which rotates third base element 36 as described above. Referring to FIG. 12, rotation of third base element 36 in a clockwise direction “CW” causes step 36b″ to push against ledge portion 34b which causes rotation of second axial translation element 34 in the same direction. First axial translation element 30 is prevented from rotating with second axial translation element 34 due to one or more prongs 31 which extend from ledge 40b of housing mount 40.

(36) As seen best in FIG. 14, each prong 31 includes a radially inward extension 31a which terminates in a splined face 31b. Splined face 31b meshes with the splined surface 30c of first axial translation element 30 and, since the splines extend in a longitudinal direction (parallel to housing axis X-X), first axial translation element 30 is prevented from rotating while splined face 31b is in meshing engagement with splined surface 30a. However, since first axial translation element 30 is threadedly engaged to second axial translation element 34 as explained above, first axial translation element 30 will ride along the threads in an upward, axial direction toward lid 14. And since bottom cup holder 22 is rotationally fixed to second base element 26, which in turn is rotationally fixed to rotator base element 24, which in turn is rotationally fixed to bottom cup holder 22, they too will all rotate together with bottom cup holder 22 while translating in the same upward, axial direction. This axial translation presses bottom cup 16 up against top cup 18 (which itself is biased toward bottom cup 16 by spring loaded plunger 21 as described above).

(37) Spring 56 extends between rotator base element 24 and second base element 26 to provide additional biasing force of bottom cup holder 24 in the upward direction toward lid 14. This upward, linear force may act to first crack pills P located between the nesting cups. Once splined surface 30a is clear of splined face 31b, first axial translation element 30 is free to rotate together with second axial translational element 34. With bottom cup holder interconnected with first axial translation element 30, it too will rotate and cause bottom cup 16 to rotate since they are rotationally fixed together.

(38) As discussed above, top cup 18 remains rotationally fixed via engagement of protrusions 18e with recesses 20a in lid 14. As such, bottom cup 16 rotates against and with respect to top cup 18 which provides a crushing and grinding action upon the pills P located therebetween. As seen in FIGS. 8A and 8B, while the crushed pill particles are allowed to migrate in a radially outward direction, and potentially also up between the side walls 16b, 18b of the top and bottom cups, any pill chip fragments “F” (FIG. 8A) are physically blocked from escaping through gap G by chip guard 50 in the manner explained above. Of course as the pills are being ground into ever smaller particles, the cups begin to move closer together due to the bias forces discussed above. FIG. 8B illustrates the cups very close together at a point near or at the end of the pill crushing operation. The side wall spacing “SWS” between the nesting cups tapers outwardly in a direction toward the cups' top perimeters with the fine pill powder material “PPM” migrating upwardly through this space. The enlarging side wall spacing “SWS” creates enough open area so as to allow the leading edge “LE” of the powdered pill material “PPM” to continuously cascade back down into the cup during the crushing operation such that the powder pill material “PPM” never reaches the cup open top perimeter.

(39) FIGS. 16-18C show alternative embodiments of bottom and/or top cups suitable for use within pill crushing machine 10 of the present invention. A first alternative embodiment of a top cup 118, bottom cup 116 and bottom cup holder 122 are generally shown in FIGS. 16 and 17A-17B. Similar to top cup 18 and bottom cup 16 described above, nestable cups 116 and 118 are provided for use with machine 10 which are preferably single use and formed of a suitable plastic. Cups 116 and 118 are preferably formed through thermoforming or vacuum forming techniques.

(40) In a preferred embodiment shown, bottom cup 116 and top cup 118 have different dimensions such that top cup 118 nests inside bottom cup 116 with pills “P” to be crushed deposited therebetween. With the exception of perimeter flange 116c/118c and associated locking lugs 116e/118e, each cup 116/118 is generally constructed in a similar manner as top cup 18 and bottom cup 16 where top cup 18 is overall generally smaller and has side walls 18a and 18b (which meet at line 18L) which are straight in the direction from lower wall segment 18b to upper perimeter flange 18c. Upper wall segment 18a extends at an angle A1 of about 100° with respect to perimeter flange 118c, and lower wall segment 18b extends at an angle A2 of about 170° with respect to upper wall segment 18a. Rather than being straight, upper wall segment 16a of bottom cup 16 includes having an outwardly curved surface having a radius of about 1.380 mm and a lower wall segment 16b (which meets upper wall segment 18a at line 18L) having an inwardly curved surface having a radius of about 1.662 mm. The inwardly curved lower wall segment 16b interfaces closely with top cup lower segment wall 18b to promote fine grinding of the pill particles therebetween while the outwardly curved surface of bottom cup upper wall segment 16a interfaces with the sharper angled (i.e., more vertically inclined that the lower wall segment) straight upper wall segment 18a of top cup 18 so as to create a large enough space to inhibit pill powder migration. The cup bottom walls 16d and 18d are of a non-planar configuration and include a radial pattern of fluted sections 16d′ and 18d′, respectively. While the sidewalls and bottom walls of the cups are preferably the same as cups 18 and 16, top cup perimeter flange 118c of top cup 118 includes a plurality of annularly spaced, upwardly-facing (in a direction away from bottom wall 118d) locking lugs 118e, and bottom cup perimeter flange 116c includes a plurality of annularly spaced, downwardly-facing (in a direction toward bottom wall 116d) locking lugs 116e.

(41) As shown in FIG. 16, bottom cup holder 122 includes a bottom wall 22a, side wall 22b and top perimeter edge 122c having a plurality of annularly spaced recesses 122d which may align with and engage locking lugs 116e of bottom cup 116 when placed therein. Bottom cup holder 122 is configured to fit within the complementary shaped center recess 24a of rotator base element 24 as described above with regard to bottom cup holder 22. Bottom cup holder 122 includes a plurality of annularly spaced rib elements 22e which may align with and engage a like plurality of annularly spaced openings 24e formed along the lip 24f and extending partly down the side wall 24g thereof of rotator base element 24 (see FIG. 9A). As such, bottom cup holder 122 is rotationally fixed to rotator base element 24.

(42) Bottom cup 116 may be removably positioned within complementary shaped bottom cup holder 122. To ensure that bottom cup 116 will rotate together with bottom cup holder 122 during the pill crushing operation, bottom cup locking lugs 116e may align with and be engaged with complementary spaced respective recesses 122d formed about the perimeter of bottom cup holder 122. In a preferred embodiment, each locking lug 116e is proportioned so as to seat the entire length of the locking lug within its respective recess 122d such that substantially all of the recess is occupied by the lug. As used herein, “substantially all” shall mean all of the recess is to be occupied except for that minimal amount of space required for sufficient positioning of the lug within the recess. In a preferred embodiment, each lug is proportioned to fit snuggly within its respective recess. In this manner, locking lugs 116e are virtually instantly engaged by the sidewalls of recesses 122d upon rotational activation of the crushing mechanism. This minimizes, and preferably eliminates, any lateral force applied to the locking lugs upon initiation of rotation. Furthermore, as shown in FIGS. 16 and 17A-17B, locking lugs 116e are preferably formed to include a curved profile (such as when viewed in transverse cross-section as taken along section line A-A in FIG. 18A). This curved profile serves to strengthen the structural integrity of the locking lug thereby further resisting locking lug distortion, flexion or other deformation when rotationally engaged by bottom cup holder 122. Although not shown, a top cup holder, similar to top cup holder 20 described above, is provided which would include complementary spaced recesses configured to align with and engage top cup locking lugs 118e to ensure that top cup 118 remains stationary upon rotational actuation of bottom cup holder 122/bottom cup 116.

(43) FIGS. 18A-18C show additional alternative embodiments of a bottom cup amenable for use within a pill crushing machine. It should be noted that, although shown and described as alternative embodiments of bottom cups, it is envisioned that the drawings and descriptions may also be equally suitably directed to alternative embodiments of a top cup. It should further be noted that for each of the various alternative embodiments, a corresponding complementary cup holder (top and/or bottom) will be provided so as to align with and engage each embodiment's distinctive locking lug to ensure proper rotational grinding of a pill within the pill crushing machine. Similar to bottom cup 116, bottom cup 216 (FIG. 18A), bottom cup 316 (FIG. 18B) and bottom cup 416 (FIG. 18C) each generally comprise a cup structure consisting of sidewalls 18a/18b along with a bottom wall 18d. However, each bottom cup includes a unique flange/locking lug profile.

(44) As can been seen in FIG. 18A, bottom cup 216 has a perimeter flange 216c carrying a plurality of spaced, upwardly extending locking lugs 216e. Locking lugs 216e are similar in cross section to lugs 116e shown in FIGS. 16 and 17B, but project upwardly away from the bottom cup bottom wall 18d. Thus, when seated within a complementary bottom cup holder, the upwardly projecting locking lugs provide a convenient lift surface such that an operator may quickly and easily extract the bottom cup (with powdered pill material contained therein) from the bottom cup holder. In a further embodiment of bottom cup 216, one or more locking lugs 216e may include preformed perforations at the union of the locking lug and the flange. In this manner, one or more of the locking lugs 216e may be removed from the bottom cup after pulverizing the pill (and optional mixing with a suitable swallowing aid) so as to enable more convenient administration of the powered pill to the patient.

(45) Turning now to FIGS. 18B and 18C, alternative bottom cups 316 and 416, respectively, may be manufactured so as to include a closed curve locking lug 316e/416e, respectively. It is envisioned that locking lug 316e and/or 416e may be either an open profile closed curve (i.e. a ring) or a closed profile closed curve (i.e. a rod). Further, the location of the locking lug on the surface of the perimeter flange may be customized. At one extreme, as shown in FIG. 18B, locking lug 316e may be located at the distal end of perimeter flange 316c. Alternatively, at the other extreme, locking lug 416e may be located on perimeter flange 416c immediately adjacent upper sidewall 18a.

(46) As discussed above, each of bottom cups 116, 216, 316 and 416, and/or top cup 118 is preferably fabricated through thermoforming or vacuum forming techniques. In a first step of a method to thermoform or vacuum form the top and/or bottom cups, a thin sheet of thermoformable plastic is heated within an oven until pliable. The heated plastic sheet is then removed from the oven and introduced to a mold. The mold can be a positive and/or negative mold wherein the plastic sheet is stretched to form the shape of the finished cup. In vacuum forming, a vacuum may be applied to the mold to draw the plastic into or around the mold features. The thermoformed plastic sheet is then cooled and ejected from the mold. In a preferred embodiment, the upper perimeter flanges 116c/216c/316c/416c of each cup are sufficiently flexible such that each respective locking lug 116e/216e/316e/416e freely disassociates from the mold. Alternatively, a stripper may physically separate the thermoformed sheet with the finished cups from the underlying mold. The ejected sheet with formed cups is then directed to a trim station when the cups are excised from the sheet. The unformed portion of the sheet is then recycled for further use while the finished cups are stacked and packaged.

(47) While this method and apparatus has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as described.