US3372830A - Insulated double cup - Google Patents

Insulated double cup Download PDF

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Publication number
US3372830A
US3372830A US377212A US37721264A US3372830A US 3372830 A US3372830 A US 3372830A US 377212 A US377212 A US 377212A US 37721264 A US37721264 A US 37721264A US 3372830 A US3372830 A US 3372830A
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US
United States
Prior art keywords
container
receptacle
receptacles
wall
portions
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
US377212A
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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
Priority to NL144543D priority Critical patent/NL144543C/xx
Priority to NL131418D priority patent/NL131418C/xx
Application filed by Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Priority to US377212A priority patent/US3372830A/en
Priority to DE19651482559 priority patent/DE1482559C/de
Priority to BE665741A priority patent/BE665741A/xx
Priority to NL6507976A priority patent/NL6507976A/xx
Priority to GB12714/67A priority patent/GB1082893A/en
Priority to GB26381/65A priority patent/GB1082892A/en
Priority to FR56035A priority patent/FR1474433A/fr
Application granted granted Critical
Publication of US3372830A publication Critical patent/US3372830A/en
Priority to NL717100311A priority patent/NL144543B/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

  • ABSTRACT OF THE DHSCLOSURE A double-walled container having interfitting inner and outer receptacles or wall portions which cooperate to provide an insulated and reinforced finger-gripping section for the container as Well as a novel stacking construction for a double-walled container.
  • Disposable containers or cups for dispensing hot or cold liquids, foods and the like have been made from paper or paper coated wax for quite a number of years. It is well known that such containers are generally incapable of being held or supported without discomfort when full of hot beverages, such as coffee, due to the high rate of heat transferthrough the container side walls. It is equally as discomforting to attempt to grasp such a container, even when the beverage has cooled, since the container side walls deflect to such an extent as to make it relatively diificult to obtain a good grasp. Integral handles and other implementing structure have alleviated this problem to some degree, but do not facilitate the dispensing of containers in a coin operated vending machine.
  • the present invention is an improvement over containers of this type, and more specifically, is an improvement over the double walled nestable plastic container disclosed and claimed in my prior US. Patent 3,079,027 dated Feb. 26, 1963.
  • One object of the present invention is to provide a plastic container which may be readily grasped by a user without discomfort when filled with hot beverages and the like.
  • Another object of the present invention is the provision of a novel and unique plastic container, which in addition to protecting the user, prevents injury to table and other supporting surfaces from heat transfer and vapor transmission.
  • Still a further object of the present invention is to provide a novel container of seamless construction which is strong per unit weight, and which will withstand the users grasp without deflection of the container side walls to any great extent.
  • Still another object of the present invention is the provision of a unitary plastic container which is unaffected by humidity, and will readily permit of telescopic association and withdrawal of a plurality of like containers for use in packaging and dispensing the containers.
  • a still further object of the instant invention is the provision of a disposable double walled container wherein each of the component parts can be economically molded under mass manufacturing techniques, quickly and easily assembled to one another, and then used for a variety of hot and cold products without discomfort to the user, injury to supporting surfaces, or weakening of the container construction itself.
  • FIG. 1 is a perspective view of a double walled container constructed in accordance with the principles of the present invention
  • FIG. 2 is an enlarged fragmentary sectional view of a pair of completely formed double walled containers telescopically assembled to one another;
  • FIG. 3 is an enlarged fragmentary sectional view of the insulating and/ or gripping area of the double walled container
  • FIGS. 4-5 are enlarged fragmentary sectional views of a lower section of the container, and showing alternate constructions thereof;
  • FIG. 6 is an enlarged fragmentary sectional view of a plurality of stacked receptacles forming the outer unit of the container shown in FIGS. 12;
  • FIG. 7 is an enlarged fragmentary sectional view of a plurality of stacked receptacles forming the inner unit of the container illustrated in FIGS. 1-2.
  • FIG. 1 there is shown a double walled container 10 of frusto-conical configuration which is preferably made of high impact polystyrene.
  • a gripping and insulating area 12 is formed in the side wall of the container, the latter tapering upwardly and outwardly to a rolled rim portion 14 to provide a substantially open top for the container.
  • the double walled container 10 comprises a pair of interfitting wall portions or receptacles designated 20, 40 respectively which are joined together by curling the reversely curving rim portion of each receptacle as will become apparent.
  • the receptacles of the container 10 are of the thin-walled variety each on the order of 0.01 inch in thickness; however, it is to 3 be understood that one of the receptacles may be thicker than the other if desired.
  • the outer cup member has a bottom wall 22 which is axially concave upwards so as to form a false bottom.
  • Substantially horizontally extending portions 2446 of the bottom wall 22 are integrally joined at one end by the inclined portion 28 so as to form the desired false bottom configuration.
  • Extending upwardly from the bottorn wall 22 and circumferentially joined to the other end of portion 26 is a lower body section 30.
  • Spaced from this lower body section 30 by the gripping and insulating area 12 is an upper body section 32 which also tapers upwardly and outwardly with respect to the bottom wall 22 of the container and terminates in a reversely curving rim portion 34- as best seen in FIG. 6 of the drawings.
  • the inner receptacle is generally similar in form to the outer receptacle 20, and is telescopically disposed therewithin.
  • the bottom or base end wall 42 of the receptacle 40 also is provided with a false bottom as the result of the spaced parallel portions 44, 46 being integrally joined to the inclined portion 48.
  • Lower and upper body sections 50, 52 of the inner receptacle taper upwardly and outwardly with respect to the bottom wall 42, and are spaced from one another in the same manner as the outer receptacle 20.
  • the insulating and gripping area of inner receptacle 40 incorporates a plurality of exteriorly disposed peripheral projections, in the form of cylindrical rings 56, which are axially spaced and radially offset from one another by the radially directed connecting portions 58 to provide a series of L-shaped segments or stepped portions.
  • the projections and shoulders 56, 58 of the inner receptacle cooperate with the projections and connecting portions 36, 38 respectively of the outer receptacle to provide the insulating and gripping area 12 for the container 10 as will subsequently appear.
  • the lower body section 50 has an inwardly directed shoulder 51 which is used for stacking an adjacently positioned container.
  • tapered wall 49 is spaced from lower body section 30 of the outer receptacle when the receptacles are assembled to one another.
  • the inwardly directed shoulder 51 of the inner receptacle 40 of each container has a smaller diameter than the lowermost portion of the lower body section 30 of the outer receptacle 20 in the vicinity of its bottom wall as will be apparent.
  • This arrangement facilitates stacking of a plurality of containers 10 one within the other permitting the inwardly directed shoulder 51 of the inner receptacle on any particular container to support the bottom wall of the outer receptacle on a similarly constructed container as best seen in FIG. 2 of the drawings.
  • a plurality of containers 10 can be stacked in nested non-jamming relationship, and can easily be separated from one another for dispensing purposes.
  • the assembly of the receptacle 20, 40 to form the double walled container 10 is accomplished by a relative telescopic movement of the receptacles so that the reversely curving rim portions 34, 54 of the outer and inner receptacles respectively, come into contact with one another.
  • This engagement of the rim portions is due to the relative axial dimensions of the receptacles, the inner receptacle having a smaller axial height than the outer receptacle.
  • the bottom walls 22, 42 of the receptacles will thus be spaced a predetermined distance from one an other.
  • each receptacle In assembling the inner and outer receptacles to form a container, the stepped portions of each receptacle will overlap and mate with one another to form a strong, rigid construction and prevent bowing of the container side wall.
  • This overlapping and interlocking relationship of the stepped portions on a pair of cooperating inner and outer receptacles also serves as a gripping and insulating area 12 for each container 10.
  • An inspection of FIG. 3 will reveal that the cylindrical rings or projections 36 on the outer receptacles generally coincides with the cylindrical rings or projections 56 on the inner receptacle, but are slightly axially offset so as to position the generally radially directed connecting portions 38, 58 in non-aligned relationship.
  • each receptacle The cylindrical rings and the radially directed connecting portions of each receptacle are so positioned as to permit a portion of the outer peripheral surface of each cylindrical ring 56 to engage a portion of the inner peripheral surface of a cylindrical ring 36.
  • This arrangement structurally reinforces the side wall of each container 10 as discussed above, permitting the stepped portions of the inner receptacle to lend requisite strength and support to the stepped portions of the outer receptacle.
  • the radially directed connecting portions 38, 58 of the outer and inner receptacles respectively are shown in FIG. 3 as being axially offset from one another by an amount substantially equal to each receptacle wall thickness.
  • the radially inwardly directed connecting portions 58 on the inner receptacle have at least a portion thereof below the top surface of the radially directed connecting portions 38 on the outer receptacle so that a portion of the outer peripheral surface of each projection 56 overlaps, and preferably engages, a portion of the inner peripheral surface of each projection 36.
  • the overlapping and mating engagement of the stepped portions on the inner and outer receptacles of each container will provide an insulation effect.
  • the overlap of at least a portion of the projections 36, 56 will provide spaced pockets 16 for trapping and maintaining air therein.
  • the side walls of the receptacles were spaced from one another initially, they would have a tendency to be forced in engagement with one another when gripped by a user, and thus force air above and below the gripped area. The result of this would be that the user would be protected from the container only by the wall thickness of the receptacles.
  • the beverage within the container will be spaced from the users fingers by an amount at least equal to the wall thickness of each receptacle, together with the length of the radially directed cooperating portion 38 on the outer receptacle.
  • the height of the cylindrical rings will vary somewhat in accordance with the size of the fingers of the user, it only being important to note that this height should be such as to prevent finger entrance in the area of juncture between the cylindrical rings 36 and cooperating portions 38.
  • the spacing between the beverage within the container and the users fingers will vary somewhat in accordance with the wall thickness of the receptacles, the configuration and inclination of the projections, and the length of the cooperating portions 38.
  • FIG. 4 Another embodiment of the container is shown in FIG. 4 and is designated a.
  • identical reference numerals will be employed as in the above embodiments with the application of the suffix a to identify like parts.
  • the essential difference of this embodiment is that the outer receptacle 26a is provided with a radially inwardly directed abutment 31 in its lower body section 30a which underlies and supports the inwardly directed shoulder 51a of the inner receptacle 41in.
  • the effect of this is that the inner receptacle 40a will be supported by the outer receptacle at two discrete points.
  • FIG. 5 is generally similar to those previously described as indicated by the application of identical reference numerals with the sufiix b employed to designate like parts.
  • This embodiment is generally similar to the FIG. 2 form except that the inclined portion 28b of the outer receptacle bottom wall 221) is inclined upwardly by an amount sufficient to cause engagement with the inclined portion 48b of the inner receptacle bottom wall 42!).
  • the inner receptacle instead of being supported by an inwardly di rected shoulder as in the FIG. 4 embodiment, will be supported by a portion of the outer receptacle bottom wall. It is to be observed, however, that wall portion 26b of the outer receptacle will nevertheless be spaced from wall portion 46b of the inner receptacle.
  • each container 10 will be best when the bottom walls of the inner and outer receptacles and side wall portions in the vicinity thereof are spaced from one another, but where it is necessary to support the inner receptacle by the outer receptacle as shown in FIG 5, it is still possibe to maintain a large proportion of the spaced insulation effect.
  • containers formed of inner and outer receptacles can be constructed so as to provide telescopic non-jamming nesting of a plurality of similarly configured containers. It is also preferable for handling, rim rolling operations, etc. that receptacles of the same configuration be constructed so as to permit telescopic non-jamming association.
  • a plurality of outer receptacles 20 are shown in FIG. 6 as being telescopically received one within the other, and in FIG. 7, a plurality of inner receptacles 4t) are similarly positioned.
  • the inner and outer receptacles of the present invention can be associated with similarly configured receptacles, inner and outer receptacles can be associated with one another, and the inner receptacle of each container can support the bottom receptacle of a similarly configured container positioned therein.
  • the radially directed cooperating portions of one receptacle will engage the radially directed cooperating portions of another receptacle to limit the extent of telescopic association there'between as is shown in FIGS. 6-7.
  • the double walled container of the present invention has high insulating characteristics, is extremely rigid in its construction, and will permit telescopic non-jamming nesting of a plurality of containers, inner receptacles, and outer receptacles, as well as telescopic assembly of an inner receptacle within an outer receptacle to form a double walled container unit.
  • the particular structural features of the insulating area as shown herein may be varied to increase the insulation ability of the containers, and the stacking area modified to provide a resilient stack of cups, such as by providing a reverse tapered stacking ring in the inner receptacles.
  • a double-walled container of thin-walled thermoplastic construction comprising inner and outer recep tacles of generally frusto-conical configuration each having a bottom wall and a side wall extending upwardly and outwardly therefrom and terminating in a rim portion, the receptacles being of different size to permit telescopic association thereof and being joined to each other at their rim portions, each of the receptacles having in its side wall a plurality of alternate axially extending and radially extending circumferential portions, the axially extending portions of one receptacle overlapping and engaging the axially extending portions of the other receptacle, with the radially extending portions on the inner receptacle being axially spaced downwardly from corresponding radially extending portions on the outer receptacle by an amount which is sufiicient, when the receptacles are joined to each other at their rim portions, to provide a series of circumferentially extending air insulating pockets and
  • each radially extending portion on the inner receptacle is axially spaced downwardly from a corresponding radially extending portion on the outer receptacle by an amount substantially equal to the wall thickness of one of said receptacles.
  • a container according to claim 1 in which there is a stacking means formed in the inner receptacle adjacent to the bottom wall thereof for receiving the bottom wall of the outer recetpacle of a similarly constructed container when the containers are nested together.
  • a container according to claim 5 in which the axial height of the inner receptacle is less than that of the outer receptacle whereby to axially space the bottom walls of the receptatcles a predetermined distance from each other.
  • a container according to claim 5 in which a portion of the receptacle side walls adjacent to the bottom walls thereof are also spaced from one another.
  • a container according to claim 5 in which the outer receptacle adjacent to the bottom wall thereof has a radially inwardly directed abutment underlying and supporting an external portion of the internal shoulder of the inner receptacle for axially spacing the bottom walls of the receptacles a predetermined distance from one another, the portions of the container side walls beneath the external portion of the internal shoulder and abutment of the inner and outer receptacles respectively being spaced from one another whereby to insulate the container in the vicinity of and adjacent to the bottom walls of the receptacles.
  • a double-walled container of thin-walled thermoplastic construction comprising inner and outer receptacles of generally frusto-conical configuration each having a bottom wall and a side wall extending upwardly and outwardly therefrom and terminating in a rim portion, the receptacles being of different size to permit telescopic association theerof and being joined to each other at their rim portions, said container having an insulated and reinforced finger-gripping section formed in the side walls of the receptacles which comprises a plurality of circumferentially extending protuberances integrally formed in the side wall of each receptacle and projecting radially therefrom, the protuberances of said receptacles being configured and arranged relative to one another when the receptacles are joined to each other at their rim portions to provide a series of spaced, non-communicating air pockets while also laterally reinforcing the container.
  • each receptacle comprise axially positioned, peripherally cointinuous portions which radially project substantially normal to the axis of said container and which are arranged in closely spaced, finger-bridging relationship to one another.
  • each receptacle comprises a plurality of alternate axially extending and radially extending circumferential portions, each radially extending portion on the inner receptacle being axially spaced downwardly from a corresponding radially extending portion on the outer receptacle by an amount substantially equal to the wall thickness of one of said receptacles, the axially extending portion above each radially extending portion on the inner receptacle engaging the axially extending portion below each radially extending portion on the outer receptacle to form the spaced, non-communicating air pockets defined by generally opposing axially extending portions and radially extending portions of the receptacles.
  • a nestable double-walled container of thermoplastic construction for beverages and the like comprising inner and outer wall portions of fnlsto-conical configuration each having a bottom and a side extending upwardly and outwardly therefrom and terminating in a rim portion, said wall portions being of predetermined different size for telescopic association with one another and being joined to each other at the rim portions thereof in a manner to space the bottom of the inner wall portion a predetermined distance from the bottom of the outer wall portion, said inner wall portion being provided with stacking means thereon including an internal shoulder means in the vicinity of the bottom thereof and of smaller minimum diameter than the maximum diameter of an external shoulder means provided on said outer wall portion, the internal shoulder means provided on the inner wall of the double-walled container adapted to receive the external shoulder means on the outer wall of a superposed double-walled container of like configuration to limit the extent of telescopic association of a plurality of double-walled containers, each inner wall portion in the vicinity of its internal shoulder means and each outer Wall portion in the vicinity of its external shoulder means
  • a nestable double-walled container of thermoplastic construction for beverages and the like comprising inner and outer wall portions of frusto-conical configuration each having a bottom and a side extending upwardly and outwardly therefrom and terminating in a rim portion, said wall portion being of predetermined different size for telescopic association with one another and being joined to each other at the rim portions thereof in a manner to space the bottom of the inner wall portion a predetermined distance from the bottom of the outer wall portion, said inner wall portion being provided with stacking means thereon including an internal shoulder means in the vicinity of the bottom thereof and of smaller minimum diameter than the maximum diameter in the vicinity of the juncture between the bottom and side of the outer wall portion forming external shoulder means, the apical angle defining the frusto-conical outer wall providing at the juncture of the bottom and side thereof a maximum diametrical measurement smaller than the minimum diametrical measurement at the rim portion of the container inner wall portion and for the axial height of the inner wall portion immediately above the internal shoulder means,
  • a nestable double-walled container of thin-walled thermoplastic construction comprising inner and outer receptacles of generally frusto-conical configuration each having a bottom wall and a side wall extending upwards and outwards and terminating in a rim portion, the receptacles being of different size to permit telescopic association thereof and being joined to each other at the rim portions, the inner receptacle including an internal shoulder in the vicinity of its bottom and the outer receptacle including an external shoulder so arranged that the internal shoulder will engage the external shoulder of a superimposed like container and thus limit the extent of telescopic association of the containers, the outer receptacle making no engagement with the underside of the internal shoulder, and the inner receptacle being spaced from the side wall of the outer receptacle at least from the level of the internal shoulder down to the bottom of the outer receptacle, and being spaced from at least the portion of the bottom wall of the outer receptacle adjacent to the side of the outer re

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Stackable Containers (AREA)
  • Packages (AREA)
US377212A 1964-06-23 1964-06-23 Insulated double cup Expired - Lifetime US3372830A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
NL144543D NL144543C (tr) 1964-06-23
NL131418D NL131418C (tr) 1964-06-23
US377212A US3372830A (en) 1964-06-23 1964-06-23 Insulated double cup
DE19651482559 DE1482559C (de) 1964-06-23 1965-06-19 Doppelwandiger Isolierbehalter
BE665741A BE665741A (tr) 1964-06-23 1965-06-21
NL6507976A NL6507976A (tr) 1964-06-23 1965-06-22
GB12714/67A GB1082893A (en) 1964-06-23 1965-06-22 Nestable double-walled containers
GB26381/65A GB1082892A (en) 1964-06-23 1965-06-22 Insulated double cups
FR56035A FR1474433A (fr) 1964-06-23 1966-04-01 Gobelet isolant à double paroi
NL717100311A NL144543B (nl) 1964-06-23 1971-01-11 Dubbelwandige beker.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US377212A US3372830A (en) 1964-06-23 1964-06-23 Insulated double cup

Publications (1)

Publication Number Publication Date
US3372830A true US3372830A (en) 1968-03-12

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ID=23488203

Family Applications (1)

Application Number Title Priority Date Filing Date
US377212A Expired - Lifetime US3372830A (en) 1964-06-23 1964-06-23 Insulated double cup

Country Status (4)

Country Link
US (1) US3372830A (tr)
BE (1) BE665741A (tr)
GB (2) GB1082893A (tr)
NL (3) NL6507976A (tr)

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US20220071418A1 (en) * 2020-09-09 2022-03-10 Godinger Silver Art Ltd. Drinking glass with embedded pass-through chamber for cigars
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Publication number Publication date
NL6507976A (tr) 1965-12-24
DE1482559A1 (de) 1969-04-03
NL131418C (tr)
GB1082892A (en) 1967-09-13
BE665741A (tr) 1965-10-18
GB1082893A (en) 1967-09-13
NL144543C (tr)

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