US3091360A - Nestable cup - Google Patents

Nestable cup Download PDF

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Publication number
US3091360A
US3091360A US769057A US76905758A US3091360A US 3091360 A US3091360 A US 3091360A US 769057 A US769057 A US 769057A US 76905758 A US76905758 A US 76905758A US 3091360 A US3091360 A US 3091360A
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US
United States
Prior art keywords
cup
cups
shoulder means
stack
stacking ring
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
Application number
US769057A
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English (en)
Inventor
Edwards Bryant
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27483739&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US3091360(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to NL288912D priority Critical patent/NL288912A/xx
Priority to NL109540D priority patent/NL109540C/xx
Priority to NL233410D priority patent/NL233410A/xx
Priority to NL288913D priority patent/NL288913A/xx
Priority to BE573429D priority patent/BE573429A/xx
Priority to NL120754D priority patent/NL120754C/xx
Priority to NL288914D priority patent/NL288914A/xx
Application filed by Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Priority to US769057A priority patent/US3091360A/en
Priority to DEI15672A priority patent/DE1136599B/de
Priority to CH361494D priority patent/CH361494A/fr
Priority to GB38677/58A priority patent/GB865024A/en
Priority to GB36612/60A priority patent/GB865025A/en
Priority to US244320A priority patent/US3139213A/en
Publication of US3091360A publication Critical patent/US3091360A/en
Application granted granted Critical
Priority to US370398A priority patent/US3208631A/en
Priority claimed from NL6413461A external-priority patent/NL6413461A/xx
Priority to NL6517013A priority patent/NL6517013A/xx
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

  • a cup particularly a throw-away cup, which is so configured that a plurality of such cups can be stacked in telescopic relation without wedging together.
  • a frusto-conical cup having a shelf or step intermediate its top and bottom margins, such shelf being cooperable with a complementary part of the similar cup to support the cups in nested relation short of total telescoping whereby individual cups are readily separated from the stack of nested cups.
  • the cups may present a very rigid column.
  • the paper box or carton holding the column of cups is very likely to burst.
  • the step by step dropping of the stack of cups in a vending machine is likely to cause damage to the mechanism of the vending machine when the stack of cups is rigid.
  • FIG. 1 is a side view of a cup constructed in accordance with the principles of the present invention
  • FIG. 2 is a vertical sectional view as taken along the line 2--2 in FIG. 1;
  • FIG. 3 is a top view of the cup of FIG. 1;
  • FIG. 4 is a vertical sectional view as taken along the line 4-4 in FIG. 1;
  • FIG. 5 is a horizontal sectional view as taken along the line 5-5 in FlG. 1;
  • FIG. 6 is a front elevational view of a cup constructed in accordance with this invention.
  • FIG. 7 is a fragmentary, perspective view of the bottom of the cup of FIG. 6;
  • FIG. 8 is a top view of the cup
  • FIG. 9 is a fragmentary, longitudinal, sectional view as taken substantially along the line 9-9 in FIG. 8;
  • FIG. 10 is a fragmentary, sectional view showing the stacking of cups according to FIGS. 6-9;
  • FIG. 11 is a fragmentary, perspective view similar to a portion of FIG. 7 and showing a modified form of the invention.
  • IFIG. 12 is a longitudinal, sectional view through a stack of cups of the type shown in FIG. 11;
  • FIG. 13 is a longitudinal sectional view at the bottom of a stack of cups of modified construction.
  • FIG. 14 is another longitudinal sectional view at the bottom of a stack of cups of another modified construction.
  • the cup as hereinafter described in detail is made of plastic, preferably of high impact polystyrene.
  • plastic preferably of high impact polystyrene.
  • Such cups have marked advantages over paper cups which have been impregnated or coated with wax. They present a better feel and taste to the lips, they do not become soggy in use, and they form a substantially perfect vapor barrier so that no moisture condenses on a cool table beneath a cup when the cup contains hot coffee or the like.
  • FIGS. 1-5 a plastic molded or formed cup designated generally by the numeral 10.
  • This cup as shown in FIGS. 1-5, has a lower body portion 12 of frustoconical configuration.
  • the sidewall of the lower body portion 12 forms an angle of approximately 5 with the vertical, tapering upwardly and outwardly.
  • the lower body portion 12 is joined by an intermediate portion 14 of greater taper to an upper body portion 16 of substantially the same taper as the lower body portion.
  • the upper body portion 16 is terminated by an outwardly and downwardly turned lip 18.
  • the cup 10 is provided with an integral bottom 20 comprising an annular ring 22 joined to the lower body portion 12 and forming an acute angle with the horizontal.
  • a cone section 24 having an apex 26 on the central axis of the cup.
  • the relatively sharp angle formed by the junction of the ring 22 with the sidewall allows a person using the cup to rest one or two fingers along the bottom edge of the Cup without burning the fingers when hot coffee is contained in the cup, due to the inefficient heat transfer provided by the sharp edge at the junction between these parts.
  • the question of heat transfer is set forth more fully in my copending application Cup for Hot Beverages, Serial Number 699,679, filed November 29, 1957 now issued into Patent 2,950,350, on September 22, 1959.
  • This mid-section comprises a plurality of stepped cylindrical rings 28.
  • the particular configuration of these rings is set forth in greater detail in my aforesaid copending application.
  • These rings serve several purposes. They rigidify the wall of the cup, which is on the nature of only about 0.01 inch in thickness.
  • the rings serve as a convenient finger grip, both due to the stepped nature of the rings, and due to the increased taper of the including cone. Perhaps most important, the dimensions of the rings are so determined as to provide a very inefficient contact with the users fingers insofar as heat transfer is concerned. Thus, the user may hold a cup full of hot coffee without burning his fingers.
  • a relatively high ring 30 of reverse taper Adjacent the bottom of the cup and spaced up slightly from the bottom, there is provided a relatively high ring 30 of reverse taper. This provides a shelf 32 at the top of the ring. Accordingly, the bottom of the back-tapered ring, as is indicated at 34, of any given cup rests on the shelf 32 at the top of the back-tapered ring of a subjacent cup nested therewith.
  • the support through the back-tapered ring 30 makes it unnecessary for the cups to wedge against one another to be supported in nested relation. In fact, there is a slight spacing between the sidewalls of adjacent cups. Accordingly, not only are the cups not wedged together, but there is space for air to enter so that the bottom cup readily can be dropped from the stack. Similarly, the top cup readily can be removed, if this is desired.
  • the cups do not wedge together.
  • air tends to enter the space between the bottom of one cup and the next cup above at too slow a rate, and the bottom cup may be a little slow in dropping.
  • the section adapted for stacking the cups includes a plurality of protuberances or nibs 36 circumferentially spaced as at 38 about the cup.
  • the supporting edge 34 is provided at the bottom edges of the nibs 36, while the shelf 32 is provided at the top thereof.
  • the nibs or protuberances 36 are wedge-shaped, having substantially straight vertical edges, and being reversely tapered relative to the taper of the cup.
  • the supporting edge at 34 of one cup rests on the supporting shelf 32 of the next cup below it.
  • the cups do not wedge together, and also do not stick together due to air trapped in the cups.
  • the cups can be stacked or nested without any possibility of wedging together, and positively admitting air between adjacent cups, whereby a single cup readily can be removed from the stack.
  • the back tapered stacking ring imparts a desirable strength or rigidity to the cup.
  • it may aid in inhibiting heat transfer from hot coffee or the like to the users fingers.
  • the provision of the stacking ring produces no important diminution in the volume of capacity of the cup.
  • the axial space occupied by the stacked or nested cups is not increased substantially over that of conventional tapered cups which are wedged together.
  • means is presented for venting air from the bottoms of the cups to facilitate separation of the cups.
  • a thin walled plastic cup designated generally by the numeral 110.
  • This cup is made of plastic, preferably high impact polystyrene, and has a lower body portion 112 of frusto-conical configuration.
  • the side wall of the lower body portion 112 preferably forms an angle of approximately 5 with the vertical, tapering upwardly and outwardly.
  • the lower body portion 112 is joined by an intermediate portion 114 of greater taper to an upper body portion 116 of substantially the same taper as the lower body portion.
  • the upper body portion 116 is terminated by an outwardly and downwardly curved lip or rim 118.
  • the cup is provided with an integral bottom 120 comprising an annular ring 122 joined to the lower body portion by structure hereinafter to be described.
  • a cone section 124 is secured to the ring 122, and has an apex 126 on the central axis of the cup.
  • the relatively sharp angle formed by the junction of the ring 122 with the side wall allows a person holding the cup to rest one or two fingers along the bottom edge of the cup without burning the fingers when a hot beverage, such as coffee, is contained in the cup. This is due to the inefficient heat transfer provided by the sharp edge at the junction between these parts. Heat transfer further is inhibited in the intermediate portion 114 of the cup, due to the sharp corners provided by the plurality of step rings forming this section.
  • step rings 128 forming the intermediate portion 114 rigidify the wall of the cup, which is in the nature of only 0.01 inch in thickness.
  • the rings further serve as a convenient finger grip, due to the stepped nature of the rings, and due to the increased taper of the including cone.
  • the cup is provided near the bottom thereof with a relatively high ring 130 of reverse taper relative to the cup.
  • This provides a shelf 132 at the top of the ring, and a step or rest at the :bottom thereof as indicated at 134.
  • the step or rest 134 of one cup is supported on the shelf 132 of the immediately subjacent cup of a telescoped or nested stack of such cups. This prevents wcdging together of the cups.
  • nibs 136 associated with the ring 130.
  • These nibs are circumferentially spaced apart, there being spaces 138 between them. As will be apparent, these spaces provide for venting air from a pocket between adjacent cups.
  • Each of the nibs 136 is wedge shaped, having a reverse taper relative to the cup.
  • a tapered protuberance, Wedge or cam surface 140 there is provided a tapered protuberance, Wedge or cam surface 140.
  • the taper of these protuberances, wedges or cam surfaces is opposite to that of the nibs 136, and it will be observed that the Wedges extend down from the lower shoulder means and radially out from a side wall but do not extend radially out so far as the nibs, thereby providing shoulders 142 beneath each of the associated nibs.
  • Only a few of the nibs have such cam surfaces or wedges, and specifically, in the illustrative example there are three such cam surfaces or wedges which are equally, arcuately spaced about the cup.
  • each cup is forced inwardly slightly in the vicinity of the wedges, while a cup externally thereof is forced outwardly slightly where engaged by a wedge.
  • the outer cup pulls in slightly short of a true circle intermediate the outwardly bulged or bowed portions.
  • the rest or step 134 of one cup does not immediately engage on the subjacent shelf 132, but must cause a certain amount of cup deformation previously.
  • the wedging engagement is quite localized at distinct points as this prevents the engagement from being sufficient to cause the cups to stick together.
  • FIGS. 11 and 12 A modification of the invention is shown in FIGS. 11 and 12 for providing a resilient stack. Parts in these two figures are generally similar to those in FIGS. 6-10, and similar numerals are utilized but in the 200 series, rather than in the 100 series. In so far as the termination of the numbers is similar, further description is unnecessary.
  • a distinguishing feature is that there are no wedges or ramps below the nibs 236. Rather, the shelf 232 is joined to the adjacent sidewall 212 by a tapered or frustoconical section at 242. All of the nibs lie against this tapered surface, and are cammed inwardly as the cups are pushed together. The tapered or frustooonical surface 242 is engaged on the inside, and stretched somewhat into rounded shape. As will be apparent, it also pulls in slightly between adjacent nibs. The taper is sufliciently abrupt that, coupled with the sharp corner of the cooperating shelf 234, there is no sticking together by wedging.
  • FIGS. 13 and 14 Further embodiments or modifications of the invention are shown respectively in FIGS. 13 and 14.
  • the cups 410 are similar to those heretofore shown and described, having a continuous stacking ring, rather than the series of nibs, and lacking any slanting or wedging surfaces. Instead, the underside of the step or rest 434 is provided at circumferentially spaced locations with downward bumps or protuberances 444. As will be apparent, when the stack of these cups is urged axially together, as under their own weight, the rest 444 of each cup is deflected upwardly in the vicinity of each protuberance, and conversely the shelf 434 is deflected downwardly beneath each protuberance. Again, the inherent flexibility of the plastic material coacts with this configuration of parts to impart a resilient action to the stack of cups.
  • FIG. 21 The form of the invention shown in FIG. 21 departs somewhat from that heretofore shown and described.
  • the cup is more nearly like that shown in FIGS. 6-10.
  • a stacking ring of reverse taper is provided at 730 in each cup, there being a supporting shelf 732 at the top thereof, and a rest or step 734 at the bottom thereof.
  • the distinguishing feature of this form of the invention resides in the provision of a plurality of inwardly directed nibs 736 positioned above the shelf 732 in each instance.
  • the upper surfaces of these nibs are inclined outwardly at a greater angle than the adjacent sidewall 712 of the cup and accordingly the nibs 736 are cammed outwardly, corresponding portions of adjacent cups being deflected somewhat inwardly in the vicinity of the rest 734 upon stacking of the cups.
  • the camming action, and the resiliency of the plastic result in a resilient stack of cups.
  • the outlines of the cup are generally the same.
  • sections are provided for utilizing the inherent resiliency of the plastic, either directly, or by a wedging action or by both, whereby to impart a resilient characteristic to a stack of such cups telescoped together.
  • the wedging or deforming sections comprise nibs or protuberances, thereby presenting between them air vents affording passage for escape of air, ormore correctly entrance of air into the pockets formed between adjacent cups, whereby to prevent the cups from sticking together by air pressure when an attempt is made to drop them one by one gravitationally.
  • a one-piece nestable circular cup of thin Walled plastic construction and of a size to be gripped and lifted by one hand comprising a recessed bottom and a sidewall integral therewith, said sidewall being joined to said recessed bottom at a circumferential bottom margin and tapering generally upwardly and outwardly therefrom in diverging relation to an upper margin defining an open upper end, said upper margin having a rim of predetermined axial extent which is of sufficient increased thickness relative to the thickness of the thin plastic sidewalls to lend required lateral strength at said open upper end, said sidewalls having circumferential stacking ring means formed therein, positioned below said upper margin and having an axial extent greater than the axial extent of the thickened rim portion, said stacking ring means having at its lower extremity circumferentially disposed externally projecting shoulder means and having at its upper extremity circumferentially disposed internal shoulder means of smaller minimum diameter than the maximum diameter of said external shoulder means and spaced upwardly from said recessed bottom, said internal shoulder means adapted to form a shelf to co
  • a one-piece seamless cup of thin walled plastic construction and of a size to be substantially encompassed and to be lifted by one hand comprising a bottom and side walls integral therewith, said side walls being joined to said bottom at a circumferential bottom margin and tapering generally upwardly and outwardly therefrom in diverging relation to an upper circumferential margin defining an open upper end, said side walls having circumferential stacking ring means formed therein, positioned below said upper margin, said stacking ring means having at its lower extremity externally projecting shoulder means and having at its upper extremity internal shoulder means of smaller minimum diameter than the maximum diameter ofsaid external shoulder means to form a shelf adapted to co-act with the complementary external shoulder means of a like container in limiting the extent of.
  • a one-piece seamless cup of thin walled plastic construct-ion and of a size to be substantially encompassed and to be lifted by one hand comprising a bottom and side walls integral therewith, said side walls being joined to said bottom at a-circumferential bottom margin and tapering generally upwardly and outwardly therefrom in diverging relation to an upper circumferential margin defining an open upper end, said side walls having circumferential stacking ring means formed therein, positioned below said upper margin, said stacking ring means having at its lower extremity externally projecting shoulder means and having at its upper extremity internal shoulder means of smaller minimum diameter than the maximum diameter of said external shoulder means to form a shelf adapted to co-act with the complementary external shoulder means of a like container in limiting the extent of telescopic association of said containers, and a plurality of circumferentially spaced protuberances extending down from said lower shoulder means and radially out from said side walls the maximum diameter of said protuberan-ces exceeding the minimum diameter of said internal shoulder means and said protuberances
  • a one-piece seamless cup of thin walled plastic construction comprising a bottom and side walls integral therewith, said side walls being joined to said bottom at a circumferential bottom margin and tapering generally upwardly and outwardly therefrom in diverging relation to an upper circumferential margin defining an open upper end, said side walls having circumferential stacking ring means formed therein, positioned below said upper margin, said stack-ing ring means having at its lower extremity externally projecting shoulder means and having at its upper extremity internal shoulder means, said stacking ring means comprising a plurality of circumferentially spaced sections having a back taper thereto converging from bottom to top, intervening stacking ring means portions having a different taper from said spaced sections, at least one of said shoulder means thereby being circumferentially discontinuous to admit air to the space between adjacent cups to facilitate separation thereof, the minimum diameter of said internal shoulder means and the maximum diameter of said external shoulder means differing in radius by more than the thickness of said side walls, the internal shoulder means forming a shelf adapted to co

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Stackable Containers (AREA)
  • Table Devices Or Equipment (AREA)
US769057A 1957-11-29 1958-10-29 Nestable cup Expired - Lifetime US3091360A (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
NL288912D NL288912A (es) 1957-11-29
NL109540D NL109540C (es) 1957-11-29
NL233410D NL233410A (es) 1957-11-29
NL288913D NL288913A (es) 1957-11-29
BE573429D BE573429A (es) 1957-11-29
NL120754D NL120754C (es) 1957-11-29
NL288914D NL288914A (es) 1957-11-29
US769057A US3091360A (en) 1957-11-29 1958-10-29 Nestable cup
DEI15672A DE1136599B (de) 1957-11-29 1958-11-24 Becher
CH361494D CH361494A (fr) 1957-11-29 1958-11-28 Ensemble comprenant au moins deux récipients destinés à être emboîtés l'un dans l'autre
GB38677/58A GB865024A (en) 1957-11-29 1958-12-01 Improvements in nestable cups
GB36612/60A GB865025A (en) 1957-11-29 1958-12-01 Improvements in nestable cups
US244320A US3139213A (en) 1957-11-29 1962-12-13 Nestable cup
US370398A US3208631A (en) 1957-11-29 1964-05-21 Nestable cup
NL6517013A NL6517013A (es) 1957-11-29 1965-12-28

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US69967857A 1957-11-29 1957-11-29
US769057A US3091360A (en) 1957-11-29 1958-10-29 Nestable cup
US244320A US3139213A (en) 1957-11-29 1962-12-13 Nestable cup
NL6413461A NL6413461A (es) 1964-11-19 1964-11-19

Publications (1)

Publication Number Publication Date
US3091360A true US3091360A (en) 1963-05-28

Family

ID=27483739

Family Applications (2)

Application Number Title Priority Date Filing Date
US769057A Expired - Lifetime US3091360A (en) 1957-11-29 1958-10-29 Nestable cup
US244320A Expired - Lifetime US3139213A (en) 1957-11-29 1962-12-13 Nestable cup

Family Applications After (1)

Application Number Title Priority Date Filing Date
US244320A Expired - Lifetime US3139213A (en) 1957-11-29 1962-12-13 Nestable cup

Country Status (6)

Country Link
US (2) US3091360A (es)
BE (1) BE573429A (es)
CH (1) CH361494A (es)
DE (1) DE1136599B (es)
GB (2) GB865024A (es)
NL (7) NL6517013A (es)

Cited By (75)

* Cited by examiner, † Cited by third party
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US3157335A (en) * 1962-04-18 1964-11-17 Continental Can Co Plastic cup with spaced and tapered radial hollow projections of 90 degrees or less in the finger contact area thereof
US3178051A (en) * 1962-09-26 1965-04-13 Illinois Tool Works Container and lid
US3203611A (en) * 1962-07-10 1965-08-31 Haveg Industries Inc Insulated nestable container and method of making the same
US3223305A (en) * 1962-12-14 1965-12-14 Illinois Tool Works Plastic cup with fins
US3232512A (en) * 1964-05-08 1966-02-01 Illinois Tool Works Stackable insert container with axially spaced engaging surfaces
US3237803A (en) * 1962-09-26 1966-03-01 Illinois Tool Works Stackable container having lip with formed undercuts
US3262626A (en) * 1963-09-25 1966-07-26 Sweetheart Plastics Cup
US3332540A (en) * 1964-07-16 1967-07-25 Arthur J Browning Shaving mug
US3342370A (en) * 1966-04-08 1967-09-19 Borden Chemical Company Nestable cup construction
US3353707A (en) * 1964-11-27 1967-11-21 Foster Grant Co Inc Nestable container
US3397867A (en) * 1965-12-24 1968-08-20 Impromex A G Cups, mugs or similar liquid containers
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US3403804A (en) * 1965-12-10 1968-10-01 L M P Lavorazione Materie Plas Blown bottle of flexible plastics
US3484018A (en) * 1967-11-28 1969-12-16 Sweetheart Plastics Nestable containers
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US8828170B2 (en) 2010-03-04 2014-09-09 Pactiv LLC Apparatus and method for manufacturing reinforced containers
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GB865024A (en) 1961-04-12
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NL288914A (es)
DE1136599B (de) 1962-09-13
NL120754C (es)
NL6517013A (es) 1966-03-25
US3139213A (en) 1964-06-30
GB865025A (en) 1961-04-12
CH361494A (fr) 1962-04-15
BE573429A (es)
NL288913A (es)
NL288912A (es)

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