US3483908A - Container having discharging means - Google Patents

Container having discharging means Download PDF

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Publication number
US3483908A
US3483908A US696296A US3483908DA US3483908A US 3483908 A US3483908 A US 3483908A US 696296 A US696296 A US 696296A US 3483908D A US3483908D A US 3483908DA US 3483908 A US3483908 A US 3483908A
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United States
Prior art keywords
container
sidewall
recesses
center
substantially solid
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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US696296A
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English (en)
Inventor
Donald W Donovan
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.)
Monsanto Co
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Monsanto Co
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Publication date
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Publication of US3483908A publication Critical patent/US3483908A/en
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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—Rigid or semi-rigid 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 or by deep-drawing operations performed on sheet material
    • B65D1/34—Trays or like shallow containers
    • 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—Rigid or semi-rigid 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 or by deep-drawing operations performed on sheet material
    • B65D1/40—Details of walls
    • 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
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/38—Devices for discharging contents

Definitions

  • the present invention relates to containers having a bottom portion which is flexibly designed in relation to the overall container body to aid in the discharge of a substantially solid substance from the container.
  • the present invention is related to containers and more specifically to containers designed for holding and discharging substantially solid substances from the containers in one piece.
  • a container having a bottom and sidewall integral therewith wherein the combined configuration and thickness of said bottom in axial cross-section is designed to provide greater axial flexibility in relation to the sidewall of said container.
  • FIG. I is a side view of a container constructed in accordance with the principles of this invention.
  • FIG. 11 is a bottom view illustrataing one embodiment of a container constructed in accordance with the principles of the present invention.
  • FIG. III is a sectional view of FIG. II as taken along the line III1II showing a side view of the container bottom illustrated in FIG. II;
  • FIG. IV is a second side view of the container as shown in FIG. I after the bottom portion has been depressed.
  • FIG. V is a bottom view illustrating an alternate embodiment of a container constructed in accordance with the principles of the present invention.
  • FIG. VI is a side view of an alternate container embodiment constructed in accordance with the principles of this invention.
  • FIG. VII is a side view of a container constructed in accordance with the principles of this invention utilizing plural recesses.
  • FIG. VIII illustrates the top view of the embodiment shown in FIG. VII.
  • FIG. I there is diagrammatically shown a container 10 having a sidewall 12 and an integrally connected bottom 14 configured to enhance deformation or flexing in the axial direction.
  • This configuration is illustrated more clearly in FIGS. II and III wherein the bottom 14 is shown having a spiral groove 16 spiralling outwardly from the center portion 13 of the bottom 14.
  • the sidewall 12 of the container 10 is provided with a series of substantially parallel ribs 20 which provide increased resistance to deformation in the lateral direction.
  • a substantially solid substance such as a cupcake 22, held within the container I2
  • a finger or other means thereby forcing the cupcake upwardly such that the upper portion of the cupcake 22 can be gripped by hand or other means as shown in FIG. IV.
  • PIG. V illustrates an alternate embodiment of the present invention wherein the bottom grooves 24 are circular as opposed to the spiral arrangement shown in FIG. 11 and which will flex in a somewhat similar manner to the container bottom shown in FIG. II.
  • a container having a substantially flat bottom such as shown in FLG- VI.
  • a container is constructed having a bottom 32 of relatively thin thickness in comparison to the thickness of the sidewall 30.
  • the groove configuration such as shown in FIG. II and V is preferred over a flat bottom since a substantially greater flexing action is generally obtainable due to the widening of the grooves while the bottom is being forced upwardly.
  • This advantage of the grooved configuration can be partially oflset by rounding and thinning the bottom corner portion 34 of the flat bottom container 30. However, this may result in significant distortion of the lower portion of the sidewall when axial pressure is applied to the bottom of the container which may be undesirable for some applications. Consequently, the use of the thinned flattened bottom configuration is recommended for applications not requiring substantial bottom flexing and/or where container distortion is not a major problem.
  • FIG. VII there is shown a container 40 which is particularly adaptable for holding more than one cupcake or other substantially solid substance.
  • two recesses 42 and 44 are employed, each having strengthened sidewalls and flexible bottoms.
  • other special features have been incorporated in this container 4! which contribute unique structural characteristics.
  • the sidewall axial lengths between the two recesses are reduced such that the upper marginal edges 46 and 48 of these sidewalls at the portion between the recesses extend rather abruptly downwardly to a land or section 50 connecting the two recesses 42 and 44.
  • a flange section 52 which can be seen more clearly in FIG.
  • VIII is integrally connected to the upper marginal edges of both recesses, except at the land area wherein it is connected to upper extensions of the land or section 50, and extends outwardly in a substantially horizontal manner to provide a surface 54 whereby a film or sheet such as the film 56 shown in FIG. VII can be secured by any means to provide a hermetically sealed package.
  • the bottoms 53 and 60 of the Memos 42 and 44, respectively are constructed similarly to that shown in FIG. 11 to provide the special bottom flexing effect of the present invention.
  • the bottom flexing action can be enhanced by reducing the bottom wall tickness in relation to the sidewall thickness such that both the bottom configuration and bottom thickness contribute to the flexing action.
  • the containers of the present invention are designed for holding substantially solid substances such as cakes, fruit and the like as opposed to liquids or granular materials.
  • These containers have a bottom and integrally connected sidewall wherein the combined configuration and thickness of the bottom in axial cross-section is designed to provide greater axial flexibility in relation to the lateral flexibility of the sidewall of the container. Consequently, substantially solid substances can be readily removed from these containers in substantially one piece by pressing upwardly against the bottom forcing a portion of the packaged substance above the upper edge of the sidewall of the container so that it can be gripped and removed from the container in substantially one piece.
  • the preferred container for accomplishing this purpose is one with a bottom wall having a peripheral I margin integrally connected to a sidewall, a center portion which may be a point or greater area centrally oriented with relation to the peripheral margin and having an intermediate flexing portion disposed generally around the center and being corrugated outwardly relative to the center.
  • the bottom flexing action is obtained primarily by the widening of the grooves and ridges of the corrugations when axial pressure is applied to the bottom.
  • the corrugations extend outwardly from the center so that the grooves and ridges will expand inwardly and upwardly in response to the applied pressure.
  • the grooves and ridges of the corrugation will extend generally around the center of the bottom so that the expansion of the corrugations is fairly equivalent all around the center.
  • corrugations Two embodiments of corrugations are shown in the drawings wherein the grooves and ridges extend spirally in one embodiment and in concentric rings in the other. However, it is also possible to extend the grooves and ridges of the corrugations around the center in a square, hexagonal or other pattern, if desired, as long as i the expansive effect of the corrugations are fairly equivalent around the center.
  • One corrugation extending out wardly from the center will work although it is generally preferable to have between two to four formed in any manner such as from one spiral.
  • the wall thickness of the bottom wall such that the average bottom wall thickness is to the average sidewall thickness.
  • the overall container thickness may vary substantially as long as the bottom of the container is fairly readily flexible to finger pressure.
  • the containers of the present invention are formed from plastics, primarily substantially thermoplastic in nature, such as polystyrene and the like and the average sidewall thicknesses of such plastics will generally vary between 0.002 to 0.020 inch and more benerally between 0.003 to 0.010 inch.
  • the average wall thickness of the bottom may be the same, greater or less than the average wall thickness of the sidewall. If the bottom wall thickness averages greater than the sidewall thickness, it may be necessary to form ribs or other discontinuities in the sidewall to increase sidewall resistance to lateral deflection when held.
  • the sidewall is generally peripherally continuous, that is,
  • FIGS. VII and VIII illustrate a container with some rather unusual and unique features incorporated in tr e caintainer.
  • this general type of container has plural recesses, each with flexible bottoms, for holdin a plurality of substantially solid substances such as cupcakes.
  • a special structure is incorporated by extending a portion of. the upper edge of each recess sidewall downwardly to a land or section connecting adjacent recesses.
  • This section the cross-sec tion of which may be flat, curvilinear, etc., imparts un usual structural stability to the container body which is of generally a thin-walled plastic material.
  • the recess sidewalls Along the upper edges of the recess sidewalls is an integrally con nected flange whieh'extends outwardly from the sidewalls in a generally planar manner to provide an upper surface whereby a film or sheet of plastic, paper and the like may be secured to cover the recess openings, thereby hermetically sealing the contents of the package. if desired, ribbing and the like may be formed in the recess sidewalls to increase resistance to lateral deflection when held.
  • the ribs extend from about the bottom of each recess partially up the recess sidewall terminating in about the same plane taken perpendicularly with respect to the recess axis to provide improved structural stability to the overall package.
  • a thin wall, plastic container for holding a substantially solid food substance and for discharging the substance in substantially one piece, said container cornprising a resilient base for supporting the container, said base having a peripheral edge, a center portion centrally oriented with relation to the peripheral edge, said center portion being in the same general plane as the peripheral edge when said container is empty and an intermediate fiexing portion disposed generally around the center and being corrugated outwardly relative to the center and a sidewall integrally connected at its lower end to theperipheral edge of said base and extending upwardly from said peripheral edge to a generally open upper end whereby the corrugations of said flexing portion expand outwardly and the base moves upwardly when the center portion is pressed from beneath with a finger or the like to elevate an upper portion of he substantially solid food substance on the base beyond the open upper end of the container, the resilient base substantially returning to its initial position when the exerted pressure is released.
  • a hermetically sealed food package for holding a plurality of substantially solid food substances and for discharging each of the substances in substantially One piece, said package comprising a one piece, thin Wall plastic body having a plurality of recesses, each recess comprising a resilient bottom wall having a peripheral margin, a center portion centrally oriented with relation to the peripheral margin and an intermediate flexing portion disposed generally around the center and being corrugated outwardly relative to the center, a sidewall integrally connected to the peripheral margin of said bottom wall and extending upwardly from said peripheral margin to a generally open upper end, said sidewall having greater resistance to deflection in a direction parallel to the axis of the recess than the bottom wall, and a thermoplastic film covering for closing the open upper ends of said recesses, whereby, with the covering removed, the corrugations of each flexing portion may expand outwardly and the bottom wall of each recess may move upwardly when the center portion of each bottom Wall is pressed from beneath with a finger or the like to elevate an upper portion
  • each recess has a plurality of longitudinally disposed ribs extending upwardly from the proximity of the bottom perpiheral margin terminating in about the 6 same plane taken perpendicularly with respect to the recess axis.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Packages (AREA)
US696296A 1968-01-08 1968-01-08 Container having discharging means Expired - Lifetime US3483908A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69629668A 1968-01-08 1968-01-08

Publications (1)

Publication Number Publication Date
US3483908A true US3483908A (en) 1969-12-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
US696296A Expired - Lifetime US3483908A (en) 1968-01-08 1968-01-08 Container having discharging means

Country Status (5)

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US (1) US3483908A (enrdf_load_stackoverflow)
DE (1) DE1900244A1 (enrdf_load_stackoverflow)
FR (1) FR1601986A (enrdf_load_stackoverflow)
GB (1) GB1251432A (enrdf_load_stackoverflow)
NL (1) NL6900260A (enrdf_load_stackoverflow)

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US4154345A (en) * 1978-02-22 1979-05-15 Sweetheart Plastics, Inc. Food product containers and the method and apparatus for manufacturing same
US4197674A (en) * 1978-06-16 1980-04-15 Blackmore Fred N Jr Plant container
US4216622A (en) * 1978-09-19 1980-08-12 Hackney Howard U Jr Plant container
US4244470A (en) * 1979-08-06 1981-01-13 Howard Johnson Company Individual ice cream dispensing receptacle
US4394906A (en) * 1981-06-23 1983-07-26 Hollenbeck John C Food container/holder
US4537311A (en) * 1983-06-27 1985-08-27 Russell G. Sharp Seamless suppository dispenser
US4611978A (en) * 1982-02-26 1986-09-16 Cesare Sangiorgi Production line for bitumen cakes
US4790740A (en) * 1985-01-29 1988-12-13 Pearlman Melinda F Apparatus for preparing a decorative cooked egg
US4796411A (en) * 1986-05-06 1989-01-10 Prima Meat Packers, Ltd. Research And Development Center Packaging food in raised state
USD348220S (en) 1993-02-22 1994-06-28 Richard R. Herzog Pizza container
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Cited By (152)

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Publication number Priority date Publication date Assignee Title
US3647104A (en) * 1970-02-24 1972-03-07 Harford E Goings Disposable tray
US4076207A (en) * 1975-05-19 1978-02-28 The Cornelius Company Food mold
US4154345A (en) * 1978-02-22 1979-05-15 Sweetheart Plastics, Inc. Food product containers and the method and apparatus for manufacturing same
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FR1601986A (enrdf_load_stackoverflow) 1970-09-21
DE1900244A1 (de) 1969-08-28
GB1251432A (enrdf_load_stackoverflow) 1971-10-27
NL6900260A (enrdf_load_stackoverflow) 1969-07-10

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