[특허]Container reconfiguring system

Berwick Container Corp. (South Euclid OH 02)

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Container reconfiguring system

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B65D-001/16
미국특허분류(USC)	206/519 ; 220/669 ; 72/349 ; 413/69
출원번호	US-0495853 (1990-03-19)
발명자 / 주소	Palisin Jr. Stephen P. (South Euclid OH) Keller Raymond J. (Macedonia OH)
출원인 / 주소	Berwick Container Corp. (South Euclid OH 02)
인용정보	피인용 횟수 : 35 인용 특허 : 11

초록
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A system for reconfigurating generally cylindrical, open-top containers that are formed from deformable metal utilizes a press to force bottom portions of upwardly opening, substantially cylindrical containers into a die to carry out drawing operations that alter bottom and side wall portions of the containers to elongate the containers and to provide the containers with tapered, fluted side portions that enable the reconfigured containers to be nested for empty shipment and storage in a minimum of space. As a part of the container reconfiguration process, each container is provided with a plurality of vertically extending “flutes”that extend along the side walls of the reconfigured containers, and with at least one ring-like formation that serves to enhance container strength, container stability and/or container handling characteristics. In preferred practice, each container is provided with a pair of vertically spaced, circumferentially extending ring-like formations that are located atop upper end regions of the vertically extending flutes, with these ring formations being provided by expanding upper side wall portions of the container. In preferred practice, each container also is provided with one press-formed, downwardly extending ring-like formation that provides a juncture between the reconfigured container\s fluted side wall and a raised bottom wall portion that is of substantially circular configuration. The depending ring formation preferably provides a planar bottom surface for supporting the container atop a flat surface with good stability. The bottom wall preferably has a slightly raised, centrally located “crown”formation.

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A nestable container that is formed as a product of a process that includes the steps of: a) providing an open-top container that is formed from metal and that has upstanding, generally cylindrical side wall means including an uninterrupted band of metal sheet stock arranged in a ring-like band for defining a side wall that extends with substantially uniform diameter between spaced, opposed ends thereof, with the side wall including rim formation means defined adjacent one of the ends thereof for surrounding an upwardly facing opening that is of substantially the same diameter as is the uniform diameter of the side wall, and that has a circular bottom wall formed from metal sheet stock that is connected by a circumferentially extending seam to the other of the opposed ends for closing said other end and for cooperating with the side wall to form a generally cylindrical, open-top container having a length that extends along an imaginary axis that extends centrally through the container and coaxially with respect to the side wall means, with the container having a capability to receive and contain a quantity of fluid as by filling the open-top container to its rim formation; and, b) reconfiguring the generally cylindrical, open-top container to provide a container that has 1) first side wall portions that are substantially unchanged in configuration in the immediate vicinity of the rim formation so as to render the upwardly facing opening unchanged in size and shape, 2) second side wall portions that are tapered along at least a majority of said length so as to effectively diminish the diameter of the reconfigured container as the side wall approaches the seam that connects the side wall to the bottom wall, 3) third side wall portions that extend between and provide a contiguous and uninterrupted connection between the first and second side wall portions, 4) a plurality of tapered flute formations, extending along the second side wall portions and being defined by a plurality of smoothly curved surface features that are introduced into the second side wall portions to give the second side wall portions a tapered, fluted configuration that narrows in diameter as it approaches the bottom wall, 5) with the flute formations extending across the seam that connects the second side wall portions to peripheral portions of the bottom wall, 6) with the bottom wall having a substantially circular central portion thereof that is moved axially from the vicinity of the seam in a direction extending away from the rim formation so as to effectively elongate the container and to define a circular container bottom having an outer diameter that is smaller than is the diameter of the first side wall portions that are located in the immediate vicinity of the rim, 7 ) with such peripheral portions of the bottom wall as extend from the vicinity of the seam toward the central portion of the bottom wall serving to provide complexly configured transition surfaces that extend the flute formations downwardly from the vicinity of the seam and curve radially inwardly toward the central portion, 8) with a depending ring-like formation being provided to circumferentially surround the circular central portion and to establish a contiguous and uninterrupted connection between the peripheral portions of the bottom wall and the central portion, 9) with the integrity of the seam being preserved such that the resulting reconfigured container retains its fluid-carrying capability. A method of forming a nestable container, comprising the steps of: a) providing an open-top container that is formed from metal and that has upstanding, generally cylindrical side wall means including an uninterrupted band of metal sheet stock arranged in a ring-like band for defining a side wall that extends with substantially uniform diameter between spaced, opposed ends thereof, with the side wall including rim formation means defined adjacent one of the ends thereof for surrounding an upwardly facing opening that is of substantially the same diameter as is the uniform diameter of the side wall, and that has a circular bottom wall formed from metal sheet stock that is connected by a circumferentially extending seam to the other of the opposed ends for closing said other end and to cooperate with the side wall to form a generally cylindrical, open-top container having a length that extends along an imaginary axis that extends centrally through the container coaxially with the side wall means, and having a capability to receive and contain a quantity of fluid as by filling the open-top container to its rim formation; and, b) reconfiguring the generally cylindrical, open-top container to provide a container that has 1) first side wall portions that are substantially unchanged in configuration in the immediate vicinity of the rim formation so as to render the upwardly facing opening unchanged in size and shape, 2) second side wall portions that are tapered along at least a majority of said length so as to effectively diminish the diameter of the reconfigured container as the side wall approaches the seam that connects the side wall to the bottom wall, 3) third side wall portions that extend between and provide a contiguous and uninterrupted connection between the first and second side wall portions, 4) a plurality of tapered flute formations extending along the second side wall portions and being defined by a plurality of smoothly curved surface features that are introduced into the second side wall portions to give the second side wall portions a tapered, fluted configuration that narrows in diameter as it approaches the bottom wall, 5) with the flute formations extending across the seam that connects the second side wall portions to peripheral portions of the bottom wall, 6) with the bottom wall having a substantially circular central portion thereof that is moved axially from the vicinity of the seam in a direction extending away from the rim formation so as to effectively elongate the container and to define a circular container bottom having an outer diameter that is smaller than is the diameter of the first side wall portions that are located in the immediate vicinity of the rim, 7) with such peripheral portions of the bottom wall as extend from the vicinity of the seam toward the central portion of the bottom wall serving to provide complexly configured transition surfaces that extend the flute formations downwardly from the vicinity of the seam and curve radially inwardly toward the central portion, 8) with a depending ring-like formation being provided to circumferentially surround the circular central portion and to establish a contiguous and uninterrupted connection between the peripheral portions of the bottom wall and the central portion, 9) with the integrity of the seam being preserved such that the resulting reconfigured container retains its fluid-carrying capability. An apparatus for reconfiguring a generally cylindrical container of the type including a generally cylindrical side wall that defines a container of substantially uniform diameter extending between an open end of the container that is defined by one end region of the side wall, and a closed end that is defined by a generally circular bottom wall that is connected to an opposed end region of the side wall along a seam that extends substantially circumferentially about the bottom wall, to provide a container that is tapered so as to narrow in diameter along the length of its side wall with a plurality of circumferentially spaced, inwardly tapering ribs extending along at least a majority of the length of the side wall and extending across the juncture of the side wall with the bottom wall and extending to portions of the bottom wall so as to render the reconfigured container nestable within portions of the open end region of another such container, comprising: a) die means having a generally cylindrical cavity with an open end for receiving the closed end region of the generally cylindrical container, having a plurality of projections that taper inwardly for forming tapering ribs in the side wall and bottom wall of the container, and having bottom means configured for providing reconfigured containers each with a depending ring-like support formation that surrounds a raised central region of the bottom wall of the reconfigured container; b) ram means for inserting into the generally cylindrical container to engage portions of the inside surface of the bottom wall to force the container into the die cavity for reconfiguring the container by positioning the container for movement into the die cavity, and by forcing the ram into contact with interior surface portions of the bottom wall to force the container into the die cavity to form a container that is tapered so as to narrow in diameter along the length of its side wall with a plurality of circumferentially spaced, inwardly tapering ribs extending along at least a majority of the length of the side wall and extending across the juncture of the side wall with the bottom wall and extending to portions of the bottom wall so as to render the reconfigured container nestable within portions of the open end region of another such container; and, c) with the ram means being configured to cooperate with the die means for providing reconfigured containers each with a depending ring-like support formation that surrounds a raised central region of the bottom wall of the reconfigured container. A method of loading a maximum number of empty, open-top, metal containers, into a given space, wherein each of the containers has substantially the same generally cylindrical shape and size, comprising the steps of: a) providing a plurality of open-top containers that each are formed from metal, and that each has upstanding, generally cylindrical side wall means including an uninterrupted band of metal sheet stock arranged in a ring-like band for defining a side wall that extends with substantially uniform diameter between spaced, opposed ends thereof, with the side wall including rim formation means defined adjacent one of the ends thereof or surrounding an upwardly facing opening that is of substantially the same diameter as is the uniform diameter of the side wall, and that has a circular bottom wall formed from metal sheet stock that is connected by a circumferentially extending seam to the other of the opposed ends for closing said other end and to cooperate with the side wall to form a generally cylindrical, open-top container having a length that extends along an imaginary axis that extends centrally through the container coaxially with the side wall means, and having a capability to receive and contain a quantity of fluid as by filling the open-top container to its rim formation; b) reconfiguring the generally cylindrical, open-top containers to provide containers that each have 1) first side wall portions that are substantially unchanged in configuration in the immediate vicinity of the rim formation so as to render the upwardly facing opening unchanged in size and shape, 2) second side wall portions that are tapered along at least a majority of said length so as to effectively diminish the diameter of the reconfigured container as the side wall approaches the seam that connects the side wall to the bottom wall, 3) third side wall portions that extend between and provide a contiguous and uninterrupted connection between the first and second side wall portions, 4) a plurality of tapered flute formations extending along the second side wall portions and being defined by a plurality of smoothly curved surface features that are introduced into the second side wall portions to give the second side wall portions a tapered, fluted configuration that narrows in diameter as it approaches the bottom wall, 5) with the flute formations extending across the seam that connects the second side wall portions to peripheral portions of the bottom wall, 6) with the bottom wall having a substantially circular central portion thereof that is moved axially from the vicinity of the seam in a direction extending away from the rim formation so as to effectively elongate the container and to define a circular container bottom having an outer diameter that is smaller than is the diameter of the first side wall portions that are located in the immediate vicinity of the rim, 7) with such peripheral portions of the bottom wall as extend from the vicinity of the seam toward the central portion of the bottom wall serving to provide complexly configured transition surfaces that extend the flute formations downwardly from the vicinity of the seam and curve radially inwardly toward the central portion, 8) with a depending ring-like formation being provided to circumferentially surround the circular central portion and to establish a contiguous and uninterrupted connection between the peripheral portions of the bottom wall and the central portion, 9) with the integrity of the seam being reserved such that the resulting reconfigured container retains its fluid-carrying capability; and, c) nesting the reconfigured containers so as to extend portions of selected ones of the containers into adjacent containers to form at least one nest of the reconfigured containers, with as many of the reconfigured containers as possible being incorporated into the at least one nest, with a minimal number of such nests being formed so as to enable the containers to be loaded into the given space while minimizing the amount of space that is consumed by the empty, reconfigured containers, and with each such container that is nested within an adjacent surrounding container having its depending ring-like formation extending into engagement with the rim formation of the adjacent surrounding container so as to assure that containers nested one within another do not become wedged together.

이 특허에 인용된 특허 (11)

이 특허를 인용한 특허 피인용횟수: 35

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Container reconfiguring system

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이 특허에 인용된 특허 (11)

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이 특허에 인용된 특허 (11)

이 특허를 인용한 특허 피인용횟수: 35

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