US3893567A - Vertical stacker - Google Patents
Vertical stacker Download PDFInfo
- Publication number
- US3893567A US3893567A US280962A US28096272A US3893567A US 3893567 A US3893567 A US 3893567A US 280962 A US280962 A US 280962A US 28096272 A US28096272 A US 28096272A US 3893567 A US3893567 A US 3893567A
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- United States
- Prior art keywords
- wall
- protrusions
- shoulder
- intermediate wall
- article
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
- B65D1/26—Thin-walled containers, e.g. formed by deep-drawing operations
- B65D1/265—Drinking cups
Definitions
- ABSTRACT A thin wall, disposable, plastic container or cover having a nesting facility comprised of a lower shoulder, an upper shoulder, and an intermediate side wall. Protrusions are formed in the intermediate side wall which extend radially from the side wall the full axial extent of said side wall, and the circumferential width of the protrusions is equal to the space between them.
- the different containers or covers are formed with different numbers of protrusions.
- This invention relates to nestable containers and covers and more particularly comprises a new and improved stacking facility for containers and covers, which prevent the articles from jamming when axial loads are applied to them.
- undercut stacking rings of that type There are certain disadvantages, however, to undercut stacking rings of that type. For example, undercuts make it difficult to remove the containers from the cavities after the containers are formed, and special strippers are necessary to eject the containers from the cavities.
- Another disadvantage of stacking facilities having undercuts is the difficulty in actually forming their details. And if the details of the stacking facilities are not formed well, the articles will likely jam when an axial load is applied.
- One important object of this invention is to provide a stacking facility which is free of undercuts and which nevertheless maximizes the interference of the stacking rings of adjacent articles so as to minimize the possibility of jamming of adjacent articles.
- the stacking ring is composed ofa lower shoulder formed in the side wall, that may or may not be coincident with the article bottom.
- An upper shoulder is formed in the article side wall above the lower shoulder, and the axial space between the shoulders determines the pitch or stack height of the nested articles.
- An intermediate wall joins the outer edge of the lower shoulder and the inner edge of the upper shoulder, and this wall is either vertical or slightly inclined upwardly and outwardly with respect to the article axis.
- a plurality of protrusions are formed in the intermediate wall, which extend the full axial height thereof, and the protrusions are spaced apart about the intermediate wall a distance substantially equal to their own circumferential width.
- the articles which are intended to be nested together all have the abovespecified features, but in addition, the number of protrusions in adjacent articles in a nest are different.
- FIG. 1 is a side view of a pair of nested containers constructed in accordance with this invention and partially broken away to reveal their nesting facilities;
- FIG. 2 is an enlarged fragmentary cross-sectional view of the nesting facilities of the two containers shown in FIG. 1',
- FIG. 3 is a diagrammatic representation of the nesting facility of the cups in FIGS. 1 and 2;
- FIGS. 4 and 5 are diagrammatic representations similar to FIG. 3 of other embodiments of this invention.
- FIG. 6 is a diagrammatic representation of the manner in which the nesting rings of two identical contain ers of the type shown in FIGS. 1-3 cooperate to prevent jamming with the profiles offset for clarity;
- FIG. 7 is a diagrammatic representation similar to FIG. 6 but showing the manner in which nesting rings of two dissimilar containers of the types shown in FIGS. 3 and 5 nest together;
- FIG. 8 is an enlarged fragmentary view of two thin wall, plastic lids constructed in accordance with this in vention',
- FIG. 9 is a fragmentary bottom view of one lid of FIG. 8;
- FIG. 10 is a fragmentary bottom view of yet another lid in accordance with this invention.
- FIG. 11 is a diagrammatic representation of yet another container constructed in accordance with this invention.
- the container shown in FIG. I typically may be a 3.5 oz. container, and it has a side wall 10, bottom wall [2, rolled rim l4, and a nesting facility 16.
- the side and bottom walls are integrally formed (typically on thermoforming equipment) and the stock thickness may be in the range of 0.005 to 0.020 inches after forming. This stock thickness range is merely exemplary and is not intended in any way to limit the scope of this inven tion. However, as expressed in the introduction, this invention has particular application to thin wall, nestable containers where stock thickness itself is insufficient to provide positive nesting without some likelihood of jamming.
- the nesting facility 16 shown in FIGS. 1-3 includes an upper shoulder 18, lower shoulder 20, and intermediate side wall 22.
- the intermediate side wall 22 is vertically disposed (cylindrical with respect to the cup axis), but this wall may taper outwardly somewhat to create a draft in the container which would facilitate stripping from the mold.
- the wall 22 is not undercut, which would positively interfere with cup stripping after forming.
- the container shown in FIG. 1 about its entire circumference had upper and lower shoulders and intermediate side walls which were uninterrupted so that the radial width of the shoulders was uniform throughout a full 360, when two cups of like design were nested one in the other, the only interference between the upper and lower shoulders of the two adjacent containers would be the thickness of the stock, i.e. the thickness of vertical intermediate wall 22. If the stock thickness were in the range of 0.005 to 0.020 inches, and the material was a typical high impact styrene used in the disposable container industry, an axial load applied to the containers would cause the material in the nesting rings to distort, and the lower shoulder of the upper container would pass within intermediate wall 22 of the next lower container, and the two containers would jam together. When jammed, the cups cannot easily be stripped apart and likely will cause malfunctioning of vending mechanisms or feeding mechanisms which are intended to automatically feed the cups one at a time from the stack.
- the intermediate wall 22 is provided about its circumference with protrusions 24 whose width is circumferentially equal to the space between the protrusions. That is, as shown in FIG. 3, the protrusion 24 measured from point A to point B is equal in circumferential width to the space between adjacent protrusions 24 measured from point B to point C.
- the protrusions 24 are described by radii 26 and 28 and arcuate wall 30.
- the radii 26 and 28 define relatively sharp corners 32 and 34 with the cylindrical intermediate wall 22.
- the radii may be reversed so that they form sharp corners with the arcuate wall and merge smoothly with the intermediate wall 22. In this arrangement, the protrusions effectively extend radially in rather than out from the intermediate wall.
- the protrusions 24 may be approximately .040 inches, and the points A, B and C are determined by the intersection of an arc lying midway between the maximum depth of the protrusions and the circumferential intermediate wall 22; that is, an are 0.020 inch beyond the intermediate wall 22.
- the distance A to B, and the distance B to C may be 36".
- the nesting rings of two such containers as shown in FIG. 3 are suggested, 18 out of phase with one another.
- the two contain ers are out of phase one quarter cycle (one cycle being equal to the circumferential width of one protrusion and one intervening space) there is substantial interference between the uninterrupted portion of the upper shoulder of the lower container and the bottom wall of the protrusion of the upper container.
- the lower wall 36 ofthe protrusion will rest upon the portion 38 of the upper shoul der supported by the portion of the intermediate side wall between protrusions.
- the cycle composed of protru sion and gap 52 is 5126, which provides 7 protrusions and 7 gaps about the cup periphery.
- the cycle composed of protrusion and gap 62 spans 40, and consequently 9 such pairs are provided about the cup periphery.
- a multiple cavity mold be provided with different nesting rings having different numbers of protrusions.
- a multi-cavity mold may include 6 or 7 different sizes of protrusions, and such a configuration will greatly reduce the likelihood of identical cups with like numbers of protrusions being nested im mediately adjacent one another when the cups are stacked.
- FIGS. 8 and 9 this invention is shown embodied in a thin wall, disposable, plastic lid.
- two such lids are shown nested together in the manner of the two containers of FIG. 2.
- each lid which includes a closure wall 82, side wall 84, flange 86, and skirt 88 is also provided with a nesting recess 90 that functions in the same manner as the nesting facilities in the containers of FIGS. 1-5.
- the lid itself in combination with a container functions conventionally as a coverall lid to cover the rim and seal the container.
- the channel 92 defined by the flange 86, side wall 84, and skirt 88 receives the rim of the container and forms a seal with it.
- the recess 90 is defined by an inner cylindrical wall 94 and a second outer cylindrical wall 96.
- Wall 96 is provided with protrusions 98 formed like the protrusions in the embodiments of FIGS. l-S.
- the circumferential width of each protrusion 98 is equal to the gap between the protrusions measured in the fashion described above in connection with the containers.
- lower wall 102 of the protrusion forms a lower shoulder which rests on the upper shoulder 100. If the width of the protrusions and gaps between protrusions are equal, uniformly distributed interference is achieved when the lids are nested together.
- protrusions are shown in the embodiment of FIGS. 8 and 9 formed on the outer cylindrical wall 96 of the nesting recess 90, it is evident that the protrusions may be alternatively formed on the wall 94 as well. That arrangement is shown in the embodiment of FIG. 10, wherein nesting recess 110 has a continuous uninterrupted cylindrical outer wall 2 and an interrupted inner cylindrical wall I14 with protrusions H6.
- nesting recess 110 has a continuous uninterrupted cylindrical outer wall 2 and an interrupted inner cylindrical wall I14 with protrusions H6.
- the protrusions formed in the walls to assure nesting may either extend radially in or out from the circumferential intermediate wall.
- FIG. 11 such an arrangement is shown for a container otherwise the same as the containers of FIGS. 1-5.
- the intermediate side wall of the nesting ring 120 is provided with protrusions 122 formed at their ends by arcuate walls 124 and 126.
- the circumferential width of the protrusions is equal to the space between them.
- protrusions may be formed in different containers or lids to further insure against jamming. That is, the protrusions and the nesting recesses may be of different numbers as suggested in FIGS. 3-5 so that adjacent lids or containers in a nest may have different numbers of protrusions so as to positively prevent jamming.
- a one-piece, thin wall, disposable, plastic article comprising an outwardly inclined axially extending wall and a transverse wall integral with the axially extending wall,
- nesting facility formed in the axially extending wall, said nesting facility having a lower external shoulder and an upper internal shoulder,
- protrusions formed in the intermediate wall extending the full axial height thereof, said protrusions being spaced apart about the intermediate wall a distance substantially equal to the circumferential width of the protrusions so that each protrusion has a circumferential width equal to the circumferential width of each intermediate wall portion between each protrusion, with said protrusions acting to provide a stacking interference at equally spaced portions about the circumference of the article when it is stacked with a similar article out of circumferential phase therewith,
- said intermediate wall section being free of undercuts between the upper and lower shoulders.
- a one-piece, thin wall, disposable, plastic article defined in claim 1 further characterized by said article being a container and said intermediate wall section lying in the axially extending wall.
- a one-piece, thin wall, disposable, plastic article comprising,
- a nesting facility formed in a recess in the transverse wall, said nesting facility having, a lower external shoulder and an upper internal shoulder.
- protrusions formed in the intermediate wall extending the full axial height thereof, said protrusions being spaced apart about the intermediate wall a distance substantially equal to the circumferential width of the protrusions so that each protrusion has a circumferential width equal to the circumferential width of each intermediate wall portion between each protrusion, with said protrusions acting to provide a stacking interference at equally spaced portions about the circumference of the article when it is stacked with a similar article out of cir cumferential phase therewith,
- a one-piece, thin wall, disposable, plastic article as defined in claim 4 further characterized by said article being a lid and having a flange extending outwardly from said axially extending wall and having a skirt extending downwardly from the outer edge of the flange, said axially extending wall, flange, and skirt enclosing the rim of a container when fitted on itv 6.
- a one-piece, thin wall, disposable, plastic contamer comprising a bottom and an outwardly inclined upwardly extending side wall integrally formed from a thin sheet of plastic material and joined at a bottom edge, said container having a nesting facility characterized by:
- protrusions formed in the intermediate wall extending the full axial height thereof, said protrusions being spaced apart about the intermediate wall a distance substantially equal to the circumferential width of the protrusions so that each wall whose center is coincident with the axis of the container.
- protrusions being further characterized by radii which merge smoothly into the arcuate wall and define sharp corners with the intermediate wall.
- At least one additional container nested therewith and characterized as set forth in said claim, said containers being further characterized by at least some of said containers having different numbers of protrusions.
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Stackable Containers (AREA)
Abstract
Description
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US280962A US3893567A (en) | 1972-08-16 | 1972-08-16 | Vertical stacker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US280962A US3893567A (en) | 1972-08-16 | 1972-08-16 | Vertical stacker |
Publications (1)
Publication Number | Publication Date |
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US3893567A true US3893567A (en) | 1975-07-08 |
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US280962A Expired - Lifetime US3893567A (en) | 1972-08-16 | 1972-08-16 | Vertical stacker |
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Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0029650A1 (en) * | 1979-09-24 | 1981-06-03 | Unilever Plc | Nestable container with strengthening fillets |
US4275815A (en) * | 1976-05-24 | 1981-06-30 | Sweetheart Plastics, Inc. | Lid |
EP0068718A1 (en) * | 1981-06-19 | 1983-01-05 | American Can Company | Hermetically sealable containers and method of sealing |
US4542029A (en) * | 1981-06-19 | 1985-09-17 | American Can Company | Hot filled container |
US4685273A (en) * | 1981-06-19 | 1987-08-11 | American Can Company | Method of forming a long shelf-life food package |
USD381268S (en) * | 1995-12-12 | 1997-07-22 | James River Corporation Of Virginia | Cup lid |
USD381267S (en) * | 1995-12-12 | 1997-07-22 | James River Corporation Of Virginia | Cup lid |
US5791509A (en) * | 1995-12-12 | 1998-08-11 | James River Corporation Of Virginia | Uniform stacking cup lid |
US6415804B1 (en) * | 1999-12-23 | 2002-07-09 | Lam Research Corporation | Bowl for processing semiconductor wafers |
US20060076395A1 (en) * | 2004-10-12 | 2006-04-13 | Hayes Thomas J | Container having textured grip and enhanced wall integrity |
US20070170236A1 (en) * | 2004-02-16 | 2007-07-26 | Stora Enso Oyi | Cup package of a fibrous material and a method of manufacturing the same |
US20100247830A1 (en) * | 2009-03-24 | 2010-09-30 | Pactiv Corporation | Blank for a container having a rolled rim, and method of making the same |
USD635816S1 (en) | 2006-06-09 | 2011-04-12 | Conagra Foods Rdm, Inc. | Container basket |
USD638701S1 (en) | 2010-09-08 | 2011-05-31 | Conagra Foods Rdm, Inc. | Container |
USD639186S1 (en) | 2010-09-08 | 2011-06-07 | Conagra Foods Rdm, Inc. | Container with sleeve |
USD639656S1 (en) | 2010-09-08 | 2011-06-14 | Con Agra Foods RDM, Inc. | Container lid |
US8302528B2 (en) | 2005-10-20 | 2012-11-06 | Conagra Foods Rdm, Inc. | Cooking method and apparatus |
USD680426S1 (en) | 2012-06-12 | 2013-04-23 | Conagra Foods Rdm, Inc. | Container |
US8613249B2 (en) | 2007-08-03 | 2013-12-24 | Conagra Foods Rdm, Inc. | Cooking apparatus and food product |
US8850964B2 (en) | 2005-10-20 | 2014-10-07 | Conagra Foods Rdm, Inc. | Cooking method and apparatus |
US8866056B2 (en) | 2007-03-02 | 2014-10-21 | Conagra Foods Rdm, Inc. | Multi-component packaging system and apparatus |
USD717162S1 (en) | 2012-06-12 | 2014-11-11 | Conagra Foods Rdm, Inc. | Container |
US8887918B2 (en) * | 2005-11-21 | 2014-11-18 | Conagra Foods Rdm, Inc. | Food tray |
US9027825B2 (en) | 2012-06-12 | 2015-05-12 | Conagra Foods Rdm, Inc. | Container assembly and foldable container system |
US9132951B2 (en) | 2005-11-23 | 2015-09-15 | Conagra Foods Rdm, Inc. | Food tray |
US9211030B2 (en) | 2005-10-20 | 2015-12-15 | Conagra Foods Rdm, Inc. | Steam cooking apparatus |
US9676539B2 (en) | 2013-05-24 | 2017-06-13 | Graphic Packaging International, Inc. | Package for combined steam and microwave heating of food |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3045887A (en) * | 1958-01-28 | 1962-07-24 | James R Caine | Thin walled plastic container |
US3061139A (en) * | 1960-03-14 | 1962-10-30 | Illinois Tool Works | Self-venting package |
US3401862A (en) * | 1964-05-08 | 1968-09-17 | Illinois Tool Works | Disposable container |
US3484018A (en) * | 1967-11-28 | 1969-12-16 | Sweetheart Plastics | Nestable containers |
US3596795A (en) * | 1968-12-26 | 1971-08-03 | Solo Cup Co | Nestable cups and holders |
US3654076A (en) * | 1969-09-29 | 1972-04-04 | Keyes Fibre Co | Nested packaging trays produced by a rotary pulp molding machine having different sets of molding dies |
-
1972
- 1972-08-16 US US280962A patent/US3893567A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3045887A (en) * | 1958-01-28 | 1962-07-24 | James R Caine | Thin walled plastic container |
US3061139A (en) * | 1960-03-14 | 1962-10-30 | Illinois Tool Works | Self-venting package |
US3401862A (en) * | 1964-05-08 | 1968-09-17 | Illinois Tool Works | Disposable container |
US3484018A (en) * | 1967-11-28 | 1969-12-16 | Sweetheart Plastics | Nestable containers |
US3596795A (en) * | 1968-12-26 | 1971-08-03 | Solo Cup Co | Nestable cups and holders |
US3654076A (en) * | 1969-09-29 | 1972-04-04 | Keyes Fibre Co | Nested packaging trays produced by a rotary pulp molding machine having different sets of molding dies |
Cited By (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4275815A (en) * | 1976-05-24 | 1981-06-30 | Sweetheart Plastics, Inc. | Lid |
EP0029650A1 (en) * | 1979-09-24 | 1981-06-03 | Unilever Plc | Nestable container with strengthening fillets |
EP0068718A1 (en) * | 1981-06-19 | 1983-01-05 | American Can Company | Hermetically sealable containers and method of sealing |
US4542029A (en) * | 1981-06-19 | 1985-09-17 | American Can Company | Hot filled container |
US4685273A (en) * | 1981-06-19 | 1987-08-11 | American Can Company | Method of forming a long shelf-life food package |
USD381268S (en) * | 1995-12-12 | 1997-07-22 | James River Corporation Of Virginia | Cup lid |
USD381267S (en) * | 1995-12-12 | 1997-07-22 | James River Corporation Of Virginia | Cup lid |
US5791509A (en) * | 1995-12-12 | 1998-08-11 | James River Corporation Of Virginia | Uniform stacking cup lid |
US6415804B1 (en) * | 1999-12-23 | 2002-07-09 | Lam Research Corporation | Bowl for processing semiconductor wafers |
US6612315B2 (en) | 1999-12-23 | 2003-09-02 | Lam Research Corporation | Bowl, spin, rinse, and dry module, and method for loading a semiconductor wafer into a spin, rinse, and dry module |
US20070170236A1 (en) * | 2004-02-16 | 2007-07-26 | Stora Enso Oyi | Cup package of a fibrous material and a method of manufacturing the same |
US9617061B2 (en) * | 2004-02-16 | 2017-04-11 | Stora Enso Oyj | Cup package of a fibrous material and a method of manufacturing the same |
US20060076395A1 (en) * | 2004-10-12 | 2006-04-13 | Hayes Thomas J | Container having textured grip and enhanced wall integrity |
WO2006043971A1 (en) * | 2004-10-12 | 2006-04-27 | Pactiv Corporation | Container having textured grip and enhanced wall integrity |
US10569949B2 (en) | 2005-10-20 | 2020-02-25 | Conagra Foods Rdm, Inc. | Cooking method and apparatus |
US9505542B2 (en) | 2005-10-20 | 2016-11-29 | Conagra Foods Rdm, Inc. | Cooking method and apparatus |
US9211030B2 (en) | 2005-10-20 | 2015-12-15 | Conagra Foods Rdm, Inc. | Steam cooking apparatus |
US8302528B2 (en) | 2005-10-20 | 2012-11-06 | Conagra Foods Rdm, Inc. | Cooking method and apparatus |
US8850964B2 (en) | 2005-10-20 | 2014-10-07 | Conagra Foods Rdm, Inc. | Cooking method and apparatus |
US8887918B2 (en) * | 2005-11-21 | 2014-11-18 | Conagra Foods Rdm, Inc. | Food tray |
US9815607B2 (en) | 2005-11-21 | 2017-11-14 | Conagra Foods Rdm, Inc. | Food tray |
US9132951B2 (en) | 2005-11-23 | 2015-09-15 | Conagra Foods Rdm, Inc. | Food tray |
USD653495S1 (en) | 2006-06-09 | 2012-02-07 | Conagra Foods Rdm, Inc. | Container basket |
USD635816S1 (en) | 2006-06-09 | 2011-04-12 | Conagra Foods Rdm, Inc. | Container basket |
USD635817S1 (en) | 2006-06-09 | 2011-04-12 | Conagra Foods Rdm, Inc. | Container assembly |
USD636218S1 (en) | 2006-06-09 | 2011-04-19 | Conagra Foods Rdm, Inc. | Container assembly |
US8866056B2 (en) | 2007-03-02 | 2014-10-21 | Conagra Foods Rdm, Inc. | Multi-component packaging system and apparatus |
US8613249B2 (en) | 2007-08-03 | 2013-12-24 | Conagra Foods Rdm, Inc. | Cooking apparatus and food product |
US8920892B2 (en) | 2009-03-24 | 2014-12-30 | Pactiv LLC | Container having a rolled rim, and method of making the same |
US20100247830A1 (en) * | 2009-03-24 | 2010-09-30 | Pactiv Corporation | Blank for a container having a rolled rim, and method of making the same |
USD638701S1 (en) | 2010-09-08 | 2011-05-31 | Conagra Foods Rdm, Inc. | Container |
USD639186S1 (en) | 2010-09-08 | 2011-06-07 | Conagra Foods Rdm, Inc. | Container with sleeve |
USD639656S1 (en) | 2010-09-08 | 2011-06-14 | Con Agra Foods RDM, Inc. | Container lid |
US9027825B2 (en) | 2012-06-12 | 2015-05-12 | Conagra Foods Rdm, Inc. | Container assembly and foldable container system |
USD717162S1 (en) | 2012-06-12 | 2014-11-11 | Conagra Foods Rdm, Inc. | Container |
USD680426S1 (en) | 2012-06-12 | 2013-04-23 | Conagra Foods Rdm, Inc. | Container |
US9676539B2 (en) | 2013-05-24 | 2017-06-13 | Graphic Packaging International, Inc. | Package for combined steam and microwave heating of food |
US10301100B2 (en) | 2013-05-24 | 2019-05-28 | Graphic Packaging International, Llc | Package for combined steam and microwave heating of food |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCF | Information on status: patent grant |
Free format text: PATENTED FILE - (OLD CASE ADDED FOR FILE TRACKING PURPOSES) |
|
AS | Assignment |
Owner name: MARYLAND CUP CORPORATION Free format text: CHANGE OF NAME;ASSIGNOR:SWEETHEART PROPERTIES, INC.;REEL/FRAME:004568/0663 Effective date: 19841231 Owner name: SWEETHEART PROPERTIES, INC., A CORP. OF MD. Free format text: MERGER;ASSIGNOR:SWEETHEART PLASTICS, INC.;REEL/FRAME:004568/0656 Effective date: 19841231 |
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AS | Assignment |
Owner name: LILY-TULIP, INC., A DE CORP. Free format text: MERGER;ASSIGNOR:MARYLAND CUP CORPORATION;REEL/FRAME:005300/0311 Effective date: 19861217 Owner name: FORT HOWARD CUP CORPORATION Free format text: CHANGE OF NAME;ASSIGNOR:LILY-TULIP, INC.;REEL/FRAME:005300/0320 Effective date: 19861231 Owner name: BANKERS TRUST COMPANY, AS COLLATERAL AGENT Free format text: SECURITY INTEREST;ASSIGNOR:FORT HOWARD CUP CORPORATION;REEL/FRAME:005287/0404 Effective date: 19891114 |
|
AS | Assignment |
Owner name: SWEETHEART CUP COMPANY INC. Free format text: CHANGE OF NAME;ASSIGNOR:FORT HOWARD CUP CORPORATION;REEL/FRAME:005346/0001 Effective date: 19891129 |
|
AS | Assignment |
Owner name: SWEETHEART CUP COMPANY INC., ILLINOIS Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BANKERS TRUST COMPANY, AS COLLATERAL AGENT;REEL/FRAME:006687/0491 Effective date: 19930830 Owner name: SWEETHEART CUP COMPANY INC., ILLINOIS Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BANKERS TRUST COMPANY, AS COLLATERAL AGENT;REEL/FRAME:007029/0011 Effective date: 19930830 |