[특허]Multi-functional base for a plastic, wide-mouth, blow-molded container

Graham Packaging Company, L.P.

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특허 상세정보

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Multi-functional base for a plastic, wide-mouth, blow-molded container

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A23B-005/005
미국특허분류(USC)	426/399; 220/609; 215/371; 215/372; 215/373; 215/375; 215/376; 215/382
출원번호	US-0250756 (2008-10-14)
등록번호	US-8529975 (2013-09-10)
발명자 / 주소	Trude, Greg Tobias, John W. Ogg, Richard K.
출원인 / 주소	Graham Packaging Company, L.P.
대리인 / 주소	Baker Botts LLP
인용정보	피인용 횟수 : 4 인용 특허 : 175

초록
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A container can have a body with an integrally formed base attached to the body. The base includes a concave annular wall extending from the container sidewall to a standing surface, and an inner wall extending from the standing surface to a substantially flat inner annular wall. The inner annular wall is recessed in the base and is substantially perpendicular to the container sidewall. The inner annular wall includes a centrally located dimple. The dimple includes a plurality of spaced apart and radially extending indented ribs. One or more of the ribs ...

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1. A method comprising: blow-molding a PET plastic container in an as-formed condition, the container in the as-formed condition comprising: a threaded finish having a mouth;a shoulder connecting the finish to a substantially cylindrical sidewall, the substantially cylindrical sidewall extending from the shoulder to a circular base, the base having a diameter D greater than a diameter of the sidewall, and the sidewall adapted to neatly support a wrap-around label without unwanted voids beneath the label;an upper label bumper adjacent the shoulder;a lower label bumper adjacent the base;the base of the container in the as-formed condition comprising: an outer annular wall having an outer portion extending from the lower label bumper to the standing surface and an inner portion, forming a standing ring therebetween;a continuous inner annular wall radially inside of the standing ring and extending inwardly from said inner portion of the outer annular wall and having an inner periphery, at least a portion of the inner annular wall forming a flex panel, the flex panel in the as-formed condition positioned in a first position in which at least a portion of the flex panel is inclined in a radially inward direction in the range of five to six degrees upwardly relative to a horizontal plane P extending through the standing ring, the inner annular wall comprising a downwardly curved concave portion adjacent the inner portion of the outer annular wall and above the plane P of the standing ring;an anti-inverting dome projecting upwardly into the container, the inner periphery of the inner annular wall merging into the anti-inverting dome via a first annular hinge, the anti-inverting dome having a conical lower portion adjacent the first annular hinge;filling the container with a hot product;sealing and capping the filled container;in response to elevated pressure from within the filled, sealed and capped container, moving the flex panel of the filled, sealed and capped container downwardly from the first position into a second position B below the first position and above the standing ring to relieve pressure in the sealed and capped container, the elevated pressure pushing the flex panel downwardly into the second position and the anti-inverting dome travelling downwardly with the flex panel and maintaining a generally constant shape regardless of the pressures experienced within the filled, sealed and capped container, the anti-inverting dome preventing complete inversion and failure of the inner annular wall;cooling the container after the filling, sealing and capping;reducing a volume of the sealed container by moving the flex panel upwardly into a third position C above the first and second positions in response to a vacuum created by the cooling, the vacuum pulling the flex panel upwardly into the third position;relieving the vacuum by reducing the volume of the sealed container;the sidewall neatly supporting a wrap-around label without unwanted voids beneath the label;preventing permanent distortion of the filled, sealed and capped container by moving the flex panel up and down, above and below the as-formed position, between and amongst the first, second, and third positions and limiting the flex panel to flex only within a desired range of movement, the desired range defined by the second and third positions. 2. The method of claim 1, wherein the hot product is fluent. 3. The method of claim 1, wherein the hot product is food. 4. The method of claim 1, wherein the hot product is a hot fluid food product. 5. The method of claim 1, wherein the elevated pressure is caused by said filling with the hot product and said sealing and capping the container. 6. The method of claim 1, further comprising, after said filling with the hot product and said sealing and capping the container, subjecting the filled, sealed and capped container to a pasteurization process, the elevated pressure being caused by said pasteurization process. 7. The method of claim 1, further comprising, after said filling with the hot product and said sealing and capping the container, subjecting the filled, sealed and capped container to a retort process, the elevated pressure being caused by said retort process. 8. The method of claim 1, further comprising: after said filling with the hot product and said sealing and capping the container, subjecting the filled, sealed and capped container to a pasteurization process; andafter said filling with the hot product and said sealing and capping the container, subjecting the filled, sealed and capped container to a retort process. 9. The method of claim 1, wherein the portion of the flex panel inclined in a radially inward direction in the range of five to six degrees upwardly extends from the anti-inverting dome to the downwardly curved concave portion. 10. A method comprising: blow-molding a PET plastic container in an as-formed condition, the container in the as-formed condition comprising: a threaded finish having a mouth;a shoulder connecting the finish to a substantially cylindrical sidewall, the substantially cylindrical sidewall extending from the shoulder to a base, the base having a diameter D greater than a diameter of the sidewall, and the sidewall adapted to neatly support a wrap-around label without unwanted voids beneath the label;an upper label bumper adjacent the shoulder;a lower label bumper adjacent the base;the base of the container in the as-formed condition comprising: an outer annular wall having an outer portion extending from the lower label bumper to the standing surface and an inner portion, forming a standing ring therebetween;a continuous inner annular wall radially inside of the standing ring and extending inwardly from said inner portion of the outer annular wall and having an inner periphery, at least a portion of the inner annular wall forming a flex panel, the flex panel positioned in a first position in which at least a portion of the flex panel is inclined in a radially inward direction upwardly relative to a horizontal plane P extending through the standing ring;an anti-inverting dome projecting upwardly into the container, the inner periphery of the inner annular wall merging into the anti-inverting dome via a first annular hinge, the anti-inverting dome having a conical lower portion adjacent the first annular hinge;filling the container with a hot product;sealing and capping the filled container;in response to elevated pressure from within the filled, sealed and capped container, moving the flex panel of the filled, sealed and capped container downwardly from the first position into a second position B below the first position and above the standing ring, the anti-inverting dome travelling with the flex panel and maintaining a generally constant shape regardless of the pressures experienced within the filled, sealed and capped container, the anti-inverting dome preventing complete inversion and failure of the inner annular wall;cooling the container after the filling, sealing and capping;reducing a volume of the sealed container by moving the flex panel upwardly into a third position C above the first and second positions in response to a vacuum created by the cooling;relieving the vacuum by reducing the volume of the sealed container;the sidewall neatly supporting a wrap-around label without unwanted voids beneath the label;preventing permanent distortion of the filled, sealed and capped container by moving the flex panel up and down, above and below the as-formed position, between the first, second, and third positions and limiting the flex panel to flex only within a desired range of movement, the desired range defined by the second and third positions. 11. The method of claim 10, wherein the inner annular wall comprises a downwardly curved concave portion adjacent the inner portion of the outer annular wall, andwherein the portion of the flex panel inclined in a radially inward direction upwardly extends from the anti-inverting dome to the downwardly curved concave portion. 12. The method of claim 10, further comprising: after said filling with the hot product and sealing and capping the container, subjecting the filled, sealed and capped container to a pasteurization process; andafter said filling with the hot product and sealing and capping the container, subjecting the filled, sealed and capped container to a retort process. 13. A method comprising: forming plastic container in an as-formed condition, the container in the as-formed condition comprising: a shoulder connecting to a substantially cylindrical sidewall, the substantially cylindrical sidewall extending from the shoulder to a substantially circular base;an upper label bumper adjacent the shoulder;a lower label bumper adjacent the base;the base of the container in the as-formed condition comprising: an outer annular wall having an outer portion extending from the lower label bumper to a standing surface and an inner portion, forming a standing ring therebetween;an inner annular wall radially inside of the standing ring and extending inwardly from said inner portion of the outer annular wall and having an inner periphery, at least a portion of the inner annular wall forming a flex panel, the flex panel in the as-formed condition positioned in a first position in which at least a portion of the flex panel is at an angle relative to a horizontal plane extending through the standing ring;an anti-inverting dome projecting upwardly into the container, the inner periphery of the inner annular wall merging into the anti-inverting dome via a first annular hinge, the anti-inverting dome having a conical lower portion adjacent the first annular hinge;filling the container with a hot product;sealing and capping the filled container;moving the flex panel downwardly from the as-formed position into a second position below the first position, the anti-inverting dome travelling downwardly with the flex panel and maintaining a generally constant shape regardless of the pressures experienced within the filled, sealed and capped container, the anti-inverting dome preventing complete inversion and failure of the inner annular wall;cooling the container after the filling, sealing and capping;reducing a volume of the sealed container by moving the flex panel upwardly into a third position in response to vacuum created by the cooling, the vacuum pulling the flex panel upwardly into the third position;the sidewall supporting a wrap-around label;preventing permanent distortion of the filled, sealed and capped container by moving the flex panel between and amongst the first, second, and third positions. 14. The method of claim 1, wherein the angle is in the range of five to six degrees relative to the horizontal plane P extending through the standing ring. 15. The method of claim 13, wherein the angle is five degrees or greater, relative to the horizontal plane P extending through the standing ring. 16. The method of claim 13, further comprising: after said filling with the hot product and sealing and capping the container, subjecting the filled, sealed and capped container to a pasteurization process; andafter said filling with the hot product and sealing and capping the container, subjecting the filled, sealed and capped container to a retort process.

이 특허에 인용된 특허 (175)

이 특허를 인용한 특허 피인용횟수: 4

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Multi-functional base for a plastic, wide-mouth, blow-molded container

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Multi-functional base for a plastic, wide-mouth, blow-molded container

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이 특허에 인용된 특허 (175)

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