US20040206766A1 - Container - Google Patents
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- Publication number
- US20040206766A1 US20040206766A1 US10/809,071 US80907104A US2004206766A1 US 20040206766 A1 US20040206766 A1 US 20040206766A1 US 80907104 A US80907104 A US 80907104A US 2004206766 A1 US2004206766 A1 US 2004206766A1
- Authority
- US
- United States
- Prior art keywords
- container
- lid
- edge portion
- flaps
- cross
- 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.)
- Abandoned
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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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/32—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper having bodies formed by folding and interconnecting two or more blanks each blank forming a body part, whereby each body part comprises at least one outside face of the box, carton or tray
-
- 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
- B65D43/00—Lids or covers for rigid or semi-rigid containers
- B65D43/02—Removable lids or covers
- B65D43/0202—Removable lids or covers without integral tamper element
- B65D43/0204—Removable lids or covers without integral tamper element secured by snapping over beads or projections
- B65D43/0212—Removable lids or covers without integral tamper element secured by snapping over beads or projections only on the outside, or a part turned to the outside, of the mouth
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00018—Overall construction of the lid
- B65D2543/00064—Shape of the outer periphery
- B65D2543/0012—Shape of the outer periphery having straight sides, e.g. with curved corners
- B65D2543/00175—Shape of the outer periphery having straight sides, e.g. with curved corners four straight sides, e.g. trapezium or diamond
- B65D2543/00194—Shape of the outer periphery having straight sides, e.g. with curved corners four straight sides, e.g. trapezium or diamond square or rectangular
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00018—Overall construction of the lid
- B65D2543/00259—Materials used
- B65D2543/00268—Paper
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00018—Overall construction of the lid
- B65D2543/00259—Materials used
- B65D2543/00296—Plastic
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
- B65D2543/0049—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
- B65D2543/00509—Cup
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
- B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
- B65D2543/00555—Contact between the container and the lid on the inside or the outside of the container on both the inside and the outside
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00601—Snapping means on the container
- B65D2543/00611—Profiles
- B65D2543/00648—Flange or lip
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00601—Snapping means on the container
- B65D2543/00611—Profiles
- B65D2543/00657—U-shaped or inverted U
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00601—Snapping means on the container
- B65D2543/00675—Periphery concerned
- B65D2543/00685—Totality
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00712—Snapping means on the lid
- B65D2543/00722—Profiles
- B65D2543/00768—U-shaped or inverted U
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00712—Snapping means on the lid
- B65D2543/00787—Periphery concerned
- B65D2543/00805—Segments
Definitions
- the present invention relates to a container particularly but not exclusively for containing food, whose lid engages with the container body against accidental opening.
- Containers of this type in general have been known, such as the one as disclosed in U.S. Pat. No. 4,915,291 and shown in FIGS. 10 and 11 of the accompany drawings.
- This container essentially has an upright tubular body 1 , of given cross-section, provided with outwardly turned edges 2 .
- two box-like lids 3 and 3 ′ cooperate, having mating cross-sections, and provided with inwardly turned edges 4 and adapted to close respective top and bottom ends of the body 1 .
- the lids 3 of this container are secure and cannot be removed without destruction. Despite of the secure disposition, the lids 3 are not sealingly engaged with the body 1 , and this makes the container unsuitable for containing matter that can leak such as powder or liquid.
- the invention seeks to mitigate or at least alleviate such a drawback by providing an improved container.
- a container comprising a body and a lid for closing an opening of the body.
- the body has a base and a peripheral wall upstanding therefrom to define a receptacle.
- the peripheral wall defines the opening which has a circumferential edge portion that turns outwardly along its entire length to have a first cross-section.
- the lid has a circumferential edge portion that turns downwardly along its entire length to have a second cross-section complementary in shape to and for enclosing the first cross-section for surface sealing engagement therewith.
- the lid edge portion includes at least two flaps on different sides of the lid, which are foldable inwardly and upwardly to be resiliently self-expanding for bearing resiliently at an acute angle against an outer surface of the body wall to thereby maintain the sealing engagement, with the lid edge portion forming a gap with the body wall outer surface across which the flaps extend.
- the body wall is inclined from bottom to top at an acute angle outwardly.
- the gap has a width and the flaps have a dimension measured from the lid edge portion that is larger than the width of the gap such that the flaps are resiliently flippable outwardly through an over-center action while bearing against the body wall outer surface upon removal of the lid from the body.
- the body wall is inclined from bottom to top at an acute angle outwardly.
- the lid edge portion turns upwardly along its entire length before turning downwardly to thereby form an annular rib including the second cross-section.
- the annular rib includes an inner side that has a profile complementary in shape to that of a top part of an inner surface of the body wall for surface sealing engagement therewith.
- the lid edge portion turns downwardly along its entire length before turning upwardly to adjoin the annular rib, thereby forming an annular groove immediately within the annular rib.
- the flaps are integrally connected to the lid edge portion along fold lines such that the flaps are readily foldable.
- the body wall outer surface has a relatively rough surface texture for frictional engagement by the flaps.
- the body is molded from paper pulp.
- the lid is also molded from paper pulp.
- FIG. 1 is a top perspective view of an embodiment of a container in accordance with the invention, which has a body and lid for closing the body;
- FIG. 2 is an exploded perspective view of the container of FIG. 1, showing its body and lid separately;
- FIG. 3 is a top plan view of the body of FIG. 2;
- FIG. 4 is a cross-sectional side view of the body of FIG. 3, taking along line IV-IV;
- FIG. 5 is another cross-sectional side view of the body of FIG. 3, taking along line V-V;
- FIG. 6 is a top plan view of the lid of FIG. 2;
- FIG. 7 is a cross-sectional side view of the lid of FIG. 6, taking along line VII-VII;
- FIG. 8 is another cross-sectional side view of the lid of FIG. 6, taking along line VIII-VIII;
- FIG. 9 is a fragmentary cross-sectional side view of the container of FIG. 1, illustrating inter-engagement between the lid and the body;
- FIG. 10 is a perspective view of a prior art container, which has a body and top and bottom lids closing the body;
- FIG. 11 is a cross-sectional side view of the container of FIG. 10, illustrating inter-engagement between the lids and the body.
- FIGS. 1 to 9 of the drawings there is shown a container 10 embodying the invention, which container 10 comprises a body 100 having a top opening and a separate lid 200 for closing the opening of the body 100 .
- the body 100 and the lid 200 are both molded from virgin paper pulp for example.
- the body 100 has a generally square base 110 and a four-sided peripheral wall 120 upstanding integrally therefrom, while gradually expanding, to define a receptacle for containing matter such as food and in particular food with liquid content (i.e. juice, sauce or soup) or mere liquid.
- the peripheral wall 120 is inclined slightly outwards from bottom to top at an acute angle of about 15°.
- the body wall 120 defines the opening that has a circumferential edge portion 122 which turns outwardly along its entire length or periphery to have a cross-section 122 C. More specifically, the body edge portion 122 is smoothly curved outwardly and then slightly downwardly such that the cross-section 122 C has a relatively shallow inverted U-shape.
- the lid 200 is of a generally square shape, having a central panel 210 and an integrally connected peripheral portion 220 surrounding the panel 210 .
- the peripheral portion 220 has a circumferential edge portion 222 that turns upwardly and then downwardly along its entire length to form a hollow annular rib 222 R of a second cross-section 222 C for enclosing the first cross-section 122 C of the body edge portion 122 .
- the second cross-section 222 C has a relatively deep inverted U-shape including an upper part that is complementary in shape to and matches with the first cross-section 122 C for surface sealing engagement therewith.
- the circumferential rib 222 R of the lid 200 has opposite inner and outer sides slightly diverging downwardly.
- the rib's inner side has a profile complementary in shape to that of the top part of an inner surface 120 A of the body wall 120 for surface sealing engagement therewith.
- the rib's outer side is slightly taller than the rib's inner side and extends beyond the body edge portion 122 to form an annular gap 223 with and around an outer surface 120 B of the body wall 120 .
- the peripheral portion 220 turns initially downwardly along its entire length from the panel 210 and then outwardly before turning upwardly to adjoin the rib 222 R, thereby forming an annular groove 224 G immediately within the annular rib 222 R.
- the presence of the groove 224 G allows the adjacent inner side of the rib 222 R to extend relatively deeper into the container body 100 . This enlarges the area of sealing engagement of the lid edge portion 222 with the body edge portion 122 downwardly from the top of the inner surface 120 A of the body wall 120 , whereby the lid 200 can seal more effectively with the body 100 against leakage of liquid content.
- the lid edge portion 222 includes four flaps (or tabs) 226 on respective opposite sides of the lid 200 , which are integrally connected to the lid edge portion 222 along respective weakened fold lines 225 formed by, for example, punched slots or pressed dashes or simply a pre-formed crease such that the flaps 226 are readily foldable about these lines 225 .
- the flaps 226 should first be folded about the lines 225 inwardly and upwardly into the rib 222 R, thereby providing respective hooks (or clasps) 226 H.
- the in-turned hooks 226 H are resiliently self-expanding.
- the upward angular disposition of the hooks 226 H enables easy placement of the lid 200 onto the body 100 .
- the hooks 226 H of the lid 200 are pressed to contract through pivoting about their fold lines 225 upon hitting the edge portion 122 of the body 100 , thereby giving way to the body edge portion 122 which is then sealingly engaged by the lid edge portion 222 .
- the hooks 226 H are lowered past the body edge portion 122 , they immediately flip back and expand by resiliency and thus bear with their distal ends/edges upwardly resiliently against the inclined outer surface 120 B of the body wall 120 at positions below and inwardly of the body edge portion 122 .
- the hooks 226 H extend at an acute angle (about 45°) inwardly and upwardly across the gap 223 .
- the hooks 226 H act at an acute angle upon and bear against the inclined wall surface 120 B to thereby encourage and maintain the sealing engagement between the lid 200 and the body 100 , counteracting removal of the lid 200 from the body 100 .
- the wall surface 120 B is made to have a relatively rough surface texture for frictional engagement by the hooks 226 H.
- the lid 200 can easily be opened by being pulled, conveniently at one corner or on one side thereof, upwardly away from the body 100 .
- the gap 223 has a width G and the hooks 226 H have a dimension H measured from the lid edge portion 222 that is larger than the gap width G.
- the hooks 226 H are resiliently flippable downwardly and outwardly through an over-center action, with their distal ends/edges continuing to grip the body wall outer surface 120 B for the time being, to thereby release the body 100 .
- the hooks 226 H pivot past a “center” angular position at which compression of the hooks 226 H maximizes.
- the subject container 10 can be designed to have any other suitable shapes, for example including a generally rectangular, triangular or circular base.
- the number of sides of the container body wall 120 is not restricted, nor is the number of flaps/hooks 226 H.
- the associated lid 200 may have only two flaps 226 H (instead of three) on different i.e. adjacent (rather than opposite) sides.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
A container has a body and a lid. The body has a peripheral wall having a circumferential edge portion that turns outwardly along its entire length to have a first cross-section. The lid has a circumferential edge portion that turns downwardly along its entire length to have a second cross-section complementary in shape to and for enclosing the first cross-section for surface sealing engagement therewith. The lid edge portion includes four side flaps which are foldable inwardly and upwardly to provide respective resiliently self-expanding hooks for bearing resiliently at an acute angle against an outer surface of the body wall to thereby maintain the sealing engagement, with the lid edge portion forming a gap with the body surface across which the hooks extend.
Description
- The present invention relates to a container particularly but not exclusively for containing food, whose lid engages with the container body against accidental opening.
- Containers of this type in general have been known, such as the one as disclosed in U.S. Pat. No. 4,915,291 and shown in FIGS. 10 and 11 of the accompany drawings. This container essentially has an upright tubular body1, of given cross-section, provided with outwardly turned
edges 2. With the tubular body 1, two box-like lids - The
lids 3 of this container are secure and cannot be removed without destruction. Despite of the secure disposition, thelids 3 are not sealingly engaged with the body 1, and this makes the container unsuitable for containing matter that can leak such as powder or liquid. - The invention seeks to mitigate or at least alleviate such a drawback by providing an improved container.
- According to the invention, there is provided a container comprising a body and a lid for closing an opening of the body. The body has a base and a peripheral wall upstanding therefrom to define a receptacle. The peripheral wall defines the opening which has a circumferential edge portion that turns outwardly along its entire length to have a first cross-section. The lid has a circumferential edge portion that turns downwardly along its entire length to have a second cross-section complementary in shape to and for enclosing the first cross-section for surface sealing engagement therewith. The lid edge portion includes at least two flaps on different sides of the lid, which are foldable inwardly and upwardly to be resiliently self-expanding for bearing resiliently at an acute angle against an outer surface of the body wall to thereby maintain the sealing engagement, with the lid edge portion forming a gap with the body wall outer surface across which the flaps extend.
- Preferably, the body wall is inclined from bottom to top at an acute angle outwardly.
- It is preferred that the gap has a width and the flaps have a dimension measured from the lid edge portion that is larger than the width of the gap such that the flaps are resiliently flippable outwardly through an over-center action while bearing against the body wall outer surface upon removal of the lid from the body.
- It is further preferred that the body wall is inclined from bottom to top at an acute angle outwardly.
- In a preferred embodiment, the lid edge portion turns upwardly along its entire length before turning downwardly to thereby form an annular rib including the second cross-section.
- More preferably, the annular rib includes an inner side that has a profile complementary in shape to that of a top part of an inner surface of the body wall for surface sealing engagement therewith.
- More preferably, the lid edge portion turns downwardly along its entire length before turning upwardly to adjoin the annular rib, thereby forming an annular groove immediately within the annular rib.
- It is preferred that the flaps are integrally connected to the lid edge portion along fold lines such that the flaps are readily foldable.
- Preferably, the body wall outer surface has a relatively rough surface texture for frictional engagement by the flaps.
- More preferably, the body is molded from paper pulp.
- Further more preferably, the lid is also molded from paper pulp.
- The present invention may be better understood and its numerous objects and advantages will become apparent to those skilled in the art by reference to the accompanying drawings in which:
- FIG. 1 is a top perspective view of an embodiment of a container in accordance with the invention, which has a body and lid for closing the body;
- FIG. 2 is an exploded perspective view of the container of FIG. 1, showing its body and lid separately;
- FIG. 3 is a top plan view of the body of FIG. 2;
- FIG. 4 is a cross-sectional side view of the body of FIG. 3, taking along line IV-IV;
- FIG. 5 is another cross-sectional side view of the body of FIG. 3, taking along line V-V;
- FIG. 6 is a top plan view of the lid of FIG. 2;
- FIG. 7 is a cross-sectional side view of the lid of FIG. 6, taking along line VII-VII;
- FIG. 8 is another cross-sectional side view of the lid of FIG. 6, taking along line VIII-VIII;
- FIG. 9 is a fragmentary cross-sectional side view of the container of FIG. 1, illustrating inter-engagement between the lid and the body;
- FIG. 10 is a perspective view of a prior art container, which has a body and top and bottom lids closing the body; and
- FIG. 11 is a cross-sectional side view of the container of FIG. 10, illustrating inter-engagement between the lids and the body.
- Referring to FIGS.1 to 9 of the drawings, there is shown a
container 10 embodying the invention, whichcontainer 10 comprises abody 100 having a top opening and aseparate lid 200 for closing the opening of thebody 100. Thebody 100 and thelid 200 are both molded from virgin paper pulp for example. Thebody 100 has a generallysquare base 110 and a four-sidedperipheral wall 120 upstanding integrally therefrom, while gradually expanding, to define a receptacle for containing matter such as food and in particular food with liquid content (i.e. juice, sauce or soup) or mere liquid. Theperipheral wall 120 is inclined slightly outwards from bottom to top at an acute angle of about 15°. - The
body wall 120 defines the opening that has acircumferential edge portion 122 which turns outwardly along its entire length or periphery to have across-section 122C. More specifically, thebody edge portion 122 is smoothly curved outwardly and then slightly downwardly such that thecross-section 122C has a relatively shallow inverted U-shape. - The
lid 200 is of a generally square shape, having acentral panel 210 and an integrally connectedperipheral portion 220 surrounding thepanel 210. Theperipheral portion 220 has acircumferential edge portion 222 that turns upwardly and then downwardly along its entire length to form a hollowannular rib 222R of asecond cross-section 222C for enclosing thefirst cross-section 122C of thebody edge portion 122. Thesecond cross-section 222C has a relatively deep inverted U-shape including an upper part that is complementary in shape to and matches with thefirst cross-section 122C for surface sealing engagement therewith. - The
circumferential rib 222R of thelid 200 has opposite inner and outer sides slightly diverging downwardly. The rib's inner side has a profile complementary in shape to that of the top part of aninner surface 120A of thebody wall 120 for surface sealing engagement therewith. Downwardly, the rib's outer side is slightly taller than the rib's inner side and extends beyond thebody edge portion 122 to form anannular gap 223 with and around anouter surface 120B of thebody wall 120. - As between the
central panel 210 and thecircumferential rib 222R, theperipheral portion 220 turns initially downwardly along its entire length from thepanel 210 and then outwardly before turning upwardly to adjoin therib 222R, thereby forming anannular groove 224G immediately within theannular rib 222R. The presence of thegroove 224G allows the adjacent inner side of therib 222R to extend relatively deeper into thecontainer body 100. This enlarges the area of sealing engagement of thelid edge portion 222 with thebody edge portion 122 downwardly from the top of theinner surface 120A of thebody wall 120, whereby thelid 200 can seal more effectively with thebody 100 against leakage of liquid content. - The
lid edge portion 222 includes four flaps (or tabs) 226 on respective opposite sides of thelid 200, which are integrally connected to thelid edge portion 222 along respective weakenedfold lines 225 formed by, for example, punched slots or pressed dashes or simply a pre-formed crease such that theflaps 226 are readily foldable about theselines 225. Before thelid 200 is used, theflaps 226 should first be folded about thelines 225 inwardly and upwardly into therib 222R, thereby providing respective hooks (or clasps) 226H. By reason of the integral connection along thefold lines 225, the in-turnedhooks 226H are resiliently self-expanding. - The upward angular disposition of the
hooks 226H enables easy placement of thelid 200 onto thebody 100. When thelid 200 closes upon the body opening, thehooks 226H of thelid 200 are pressed to contract through pivoting about theirfold lines 225 upon hitting theedge portion 122 of thebody 100, thereby giving way to thebody edge portion 122 which is then sealingly engaged by thelid edge portion 222. As soon as thehooks 226H are lowered past thebody edge portion 122, they immediately flip back and expand by resiliency and thus bear with their distal ends/edges upwardly resiliently against the inclinedouter surface 120B of thebody wall 120 at positions below and inwardly of thebody edge portion 122. - In such a closed condition of the
container 10, thehooks 226H extend at an acute angle (about 45°) inwardly and upwardly across thegap 223. Given that the body wallouter surface 120B is inclined outwardly (and downwardly), thehooks 226H act at an acute angle upon and bear against theinclined wall surface 120B to thereby encourage and maintain the sealing engagement between thelid 200 and thebody 100, counteracting removal of thelid 200 from thebody 100. In this regard, thewall surface 120B is made to have a relatively rough surface texture for frictional engagement by thehooks 226H. - The
lid 200 can easily be opened by being pulled, conveniently at one corner or on one side thereof, upwardly away from thebody 100. In this regard, thegap 223 has a width G and thehooks 226H have a dimension H measured from thelid edge portion 222 that is larger than the gap width G. Thus, upon lifting of thelid 200 from thebody 100, thehooks 226H are resiliently flippable downwardly and outwardly through an over-center action, with their distal ends/edges continuing to grip the body wallouter surface 120B for the time being, to thereby release thebody 100. By over-center action, thehooks 226H pivot past a “center” angular position at which compression of thehooks 226H maximizes. - It is envisaged that the
subject container 10 can be designed to have any other suitable shapes, for example including a generally rectangular, triangular or circular base. The number of sides of thecontainer body wall 120 is not restricted, nor is the number of flaps/hooks 226H. Thus, in the case of a three-sided container body 100, the associatedlid 200 may have only twoflaps 226H (instead of three) on different i.e. adjacent (rather than opposite) sides. - While preferred embodiments have been shown and described, various modifications and substitutions may be made thereto without departing from the spirit and scope of the invention. Accordingly, it is to be understood that the present invention has been described by way of illustration and not limitation.
Claims (11)
1. A container comprising:
a body defining a receptacle and having a base and a peripheral wall upstanding therefrom, the wall defining an opening having a circumferential edge portion that turns outwardly along its entire periphery to have a first cross-section; and
a lid for closing the opening of the body and having a circumferential edge portion that turns downwardly along its entire periphery to have a second cross-section complementary in shape to and for enclosing the first cross-section for surface sealing engagement therewith;
wherein the lid edge portion includes at least two flaps on different sides of the lid, which are foldable inwardly and upwardly to be resiliently self-expanding for bearing resiliently at an acute angle against an outer surface of the body wall to thereby maintain the sealing engagement, with the lid edge portion forming a gap with the body wall outer surface across which the flaps extend.
2. The container as claimed in claim 1 , wherein the body wall is outwardly inclined from bottom to top at an acute angle.
3. The container as claimed in claim 1 , wherein the gap has a width and the flaps have a dimension measured from the lid edge portion that is larger than the width of the gap such that the flaps are resiliently flippable outwardly through an over-center action while bearing against the body wall outer surface upon removal of the lid from the body.
4. The container as claimed in claim 3 , wherein the body wall is outwardly inclined from bottom to top at an acute angle.
5. The container as claimed in claim 1 , wherein the lid edge portion turns upwardly along its entire periphery before turning downwardly to thereby form an annular rib including the second cross-section.
6. The container as claimed in claim 5 , wherein the annular rib includes an inner side that has a profile complementary in shape to that of a top part of an inner surface of the body wall for surface sealing engagement therewith.
7. The container as claimed in claim 5 , wherein the lid edge portion turns downwardly along its entire periphery before turning upwardly to adjoin the annular rib, thereby forming an annular groove immediately within the annular rib.
8. The container as claimed in claim 1 , wherein the flaps are integrally connected to the lid edge portion along fold lines such that the flaps are readily foldable.
9. The container as claimed in claim 1 , wherein the body wall outer surface has a rough surface texture for frictional engagement by the flaps.
10. The container as claimed in claim 9 , wherein the body is molded from paper pulp.
11. The container as claimed in claim 10 , wherein the lid is also molded from paper pulp.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN03225294.3 | 2003-04-18 | ||
CNU032252943U CN2690303Y (en) | 2003-04-18 | 2003-04-18 | Invevse thread type environament protection container for proofing cover loosening |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040206766A1 true US20040206766A1 (en) | 2004-10-21 |
Family
ID=33035158
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/809,071 Abandoned US20040206766A1 (en) | 2003-04-18 | 2004-03-25 | Container |
Country Status (10)
Country | Link |
---|---|
US (1) | US20040206766A1 (en) |
JP (1) | JP2004315090A (en) |
KR (1) | KR20060011949A (en) |
CN (2) | CN2690303Y (en) |
AU (1) | AU2004229604A1 (en) |
CA (1) | CA2522210A1 (en) |
FR (1) | FR2854134B3 (en) |
HK (2) | HK1070239A2 (en) |
IE (1) | IES20040186A2 (en) |
WO (1) | WO2004092027A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060213916A1 (en) * | 2005-03-22 | 2006-09-28 | Brown Eric R | Molded fiber lid for a container |
US20080230507A1 (en) * | 2004-03-31 | 2008-09-25 | Alexander James Peacop | Container and Closure Arrangement |
US7938286B2 (en) | 2007-02-13 | 2011-05-10 | Gateway Plastics, Inc. | Container system |
US8387822B2 (en) | 2010-07-08 | 2013-03-05 | Sonoco Development, Inc. | Sealing lid for a container |
USD825285S1 (en) * | 2015-10-22 | 2018-08-14 | Tefal | Food storage box |
CN110834807A (en) * | 2019-11-21 | 2020-02-25 | 江苏九九铝业有限公司 | Cover of mechanical cleaning agent storage box |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102582952A (en) * | 2011-01-12 | 2012-07-18 | 王文远 | Balance medical kit |
CN102579253A (en) * | 2011-01-12 | 2012-07-18 | 王文远 | Modern acupuncture and moxibustion box |
CN108163351A (en) * | 2018-02-02 | 2018-06-15 | 上海连享商务咨询有限公司 | A kind of paper pulp packs upper cover |
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- 2004-03-24 IE IE20040186A patent/IES20040186A2/en not_active IP Right Cessation
- 2004-03-25 US US10/809,071 patent/US20040206766A1/en not_active Abandoned
- 2004-04-14 JP JP2004118583A patent/JP2004315090A/en active Pending
- 2004-04-16 CA CA002522210A patent/CA2522210A1/en not_active Abandoned
- 2004-04-16 FR FR0404017A patent/FR2854134B3/en not_active Expired - Lifetime
- 2004-04-16 HK HK04102694A patent/HK1070239A2/en not_active IP Right Cessation
- 2004-04-16 AU AU2004229604A patent/AU2004229604A1/en not_active Abandoned
- 2004-04-16 WO PCT/CN2004/000363 patent/WO2004092027A1/en active Application Filing
- 2004-04-16 CN CNB2004800104768A patent/CN100491207C/en not_active Expired - Lifetime
- 2004-04-16 KR KR1020057019380A patent/KR20060011949A/en not_active Application Discontinuation
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US2580586A (en) * | 1949-06-13 | 1952-01-01 | Joseph A O'reilly | Paper box |
US2800266A (en) * | 1953-12-14 | 1957-07-23 | Waldorf Paper Products Co | Ice cream container |
US3388852A (en) * | 1966-05-26 | 1968-06-18 | Diamond Int Corp | Latch means for cartons |
US3589551A (en) * | 1968-05-16 | 1971-06-29 | Rolf Haggbom | Locking device for cover of containers |
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US20080230507A1 (en) * | 2004-03-31 | 2008-09-25 | Alexander James Peacop | Container and Closure Arrangement |
US20060213916A1 (en) * | 2005-03-22 | 2006-09-28 | Brown Eric R | Molded fiber lid for a container |
US20100019413A1 (en) * | 2005-03-22 | 2010-01-28 | Brown Eric R | Molded fiber lid for a container |
US7938286B2 (en) | 2007-02-13 | 2011-05-10 | Gateway Plastics, Inc. | Container system |
US8646648B2 (en) | 2007-02-13 | 2014-02-11 | Gateway Plastics, Inc. | Container system |
US8387822B2 (en) | 2010-07-08 | 2013-03-05 | Sonoco Development, Inc. | Sealing lid for a container |
USD825285S1 (en) * | 2015-10-22 | 2018-08-14 | Tefal | Food storage box |
CN110834807A (en) * | 2019-11-21 | 2020-02-25 | 江苏九九铝业有限公司 | Cover of mechanical cleaning agent storage box |
Also Published As
Publication number | Publication date |
---|---|
HK1070239A2 (en) | 2005-06-10 |
KR20060011949A (en) | 2006-02-06 |
AU2004229604A1 (en) | 2004-10-28 |
HK1089737A1 (en) | 2006-12-08 |
IES20040186A2 (en) | 2004-10-20 |
CA2522210A1 (en) | 2004-10-28 |
JP2004315090A (en) | 2004-11-11 |
CN100491207C (en) | 2009-05-27 |
CN1777536A (en) | 2006-05-24 |
CN2690303Y (en) | 2005-04-06 |
FR2854134A3 (en) | 2004-10-29 |
WO2004092027A1 (en) | 2004-10-28 |
FR2854134B3 (en) | 2005-04-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |