System and method for forming a container having a grip region
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B29C-049/00
B29C-049/30
출원번호
US-0856484
(2010-08-13)
등록번호
US-8323555
(2012-12-04)
발명자
/ 주소
Trude, Gregory
Kelley, Paul
출원인 / 주소
Graham Packaging Company L.P.
대리인 / 주소
Miles & Stockbridge P.C.
인용정보
피인용 횟수 :
16인용 특허 :
169
초록▼
A container forming assembly and method includes receiving a parison within a cavity of a mold, enclosing the parison within the mold having a wall with a recess, inflating the parison in the mold to form a blow molded container where the blow molded container has a sidewall, a movable region formed
A container forming assembly and method includes receiving a parison within a cavity of a mold, enclosing the parison within the mold having a wall with a recess, inflating the parison in the mold to form a blow molded container where the blow molded container has a sidewall, a movable region formed at the recess, and a hinge circumscribing an interface between the sidewall and the movable region, and moving the movable region toward an interior of the blow molded container about the hinge before filling. Furthermore, a method for forming a container includes receiving a parison, enclosing the parison with a mold that includes a cavity, and inflating the parison in said mold to form a blow molded container with a moveable region at the cavity. The method further includes repositioning the moveable region before filling the blow molded container.
대표청구항▼
1. A method of making a blow-molded plastic container having a base portion that supports the container, the method comprising: disposing a preform in a mold having a base forming assembly to form a portion of the base portion of the container, the base forming assembly including a base forming port
1. A method of making a blow-molded plastic container having a base portion that supports the container, the method comprising: disposing a preform in a mold having a base forming assembly to form a portion of the base portion of the container, the base forming assembly including a base forming portion and a movable insert portion that is movable relative to the base forming portion;blowing the preform against the base forming assembly of the mold to form a container body having the base portion, the base portion including a thinned wall portion, a first portion disposed radially outward of the thinned wall portion, and a second portion disposed radially inward of the thinned wall portion, the thinned wall portion defining a hinge portion and having a wall thickness that is thinner than immediately surrounding portions on both sides thereof, the hinge portion being constructed and operative to facilitate movement of the second portion in a direction toward an inner volume of the container; andmoving the movable insert portion of the base forming assembly relative to the base forming portion of the base forming assembly while the base portion of the container remains in the mold so as to advance the movable insert portion in the direction toward the inner volume of the container,wherein, for said moving the movable insert portion of the base forming assembly, the moveable insert portion moves to a second position above a bearing surface of the plastic container. 2. The method of claim 1, wherein said moving moves the movable insert portion into the container base portion, andwherein said moving the movable insert portion is performed while keeping fixed the base portion of the base forming assembly. 3. The method of claim 2, wherein said moving the movable insert portion forms the container base portion. 4. The method of claim 2, wherein said moving the movable insert portion comprises: advancing a cylindrical member. 5. The method of claim 2, wherein said moving the movable insert portion comprises: advancing the movable insert portion in a direction along a longitudinal axis of the container body. 6. The method of claim 2, wherein said advancing the movable insert portion causes inversion of the second portion at the hinge portion. 7. The method of claim 2, wherein the movable insert portion has a ring configuration. 8. The method of claim 2, wherein the movable insert portion has a portion that is convex in shape and which extends upward toward the plastic container. 9. The method of claim 2, further comprising: hot-filling the plastic container with a commodity and allowing the commodity to cool. 10. The method of claim 2, wherein the hinge portion circumscribes the second portion of the container base portion. 11. The method of claim 2, wherein the movable insert portion includes a void, and said blowing the preform blows a portion of the preform into the void. 12. The method of claim 1, wherein said moving the movable insert portion moves the container base portion. 13. The method of claim 12, wherein only the second portion of the container base portion moves in response to said moving. 14. The method of claim 1, wherein, for said moving the movable insert portion of the base forming assembly, the movable insert portion moves from a first position above the bearing surface of the plastic container to the second position above the first position. 15. The method of claim 1, wherein the base portion forms a ring around the movable insert portion in plan view. 16. The method of claim 1, wherein, after said moving the movable insert portion of the base forming assembly, an entirety of the container base portion is at or above a bearing surface of the plastic container. 17. The method of claim 1, wherein, for said blowing the container base portion, and prior to said moving the movable insert portion, a portion of the container base portion is below the bearing surface of the plastic container. 18. The method of claim 17, wherein the portion of the container base portion below the bearing surface of the plastic container is less than the entire portion of the container base portion. 19. The method of claim 1, wherein the second portion is centrally located about a central longitudinal axis of the container, the second portion having a portion thereof that is always at a highest most position with respect to a plane running through the bearing surface of the plastic container, as compared to other portions of the container base portion. 20. The method of claim 1, wherein said moving the movable insert portion of the base forming assembly moves inward toward the inner volume of the container the second portion of the base portion of the container, the second portion being surrounded by the hinge portion. 21. The method of claim 1, wherein the base forming portion of the base forming assembly is arranged outside of the movable insert portion of the base forming assembly in overhead view. 22. A method of making a blow-molded plastic container having a base portion that supports the container, the method comprising: disposing a preform in a mold having a base forming assembly to form a portion of the base portion of the container, the base forming assembly including a base forming portion and a movable insert portion that is movable relative to the base forming portion;blowing the preform against the base forming assembly of the mold to form a container body having the base portion, the base portion including a thinned wall portion, a first portion disposed radially outward of the thinned wall portion, and a second portion disposed radially inward of the thinned wall portion, the thinned wall portion defining a hinge portion and having a wall thickness that is thinner than immediately surrounding portions on both sides thereof, the hinge portion being constructed and operative to facilitate movement of the second portion in a direction toward an inner volume of the container; andmoving the movable insert portion of the base forming assembly relative to the base forming portion of the base forming assembly while the base portion of the container remains in the mold so as to advance the movable insert portion in the direction toward the inner volume of the container,wherein, for said moving the movable insert portion of the base forming assembly, the movable insert portion moves from a first position above a bearing surface of the plastic container to a second position above the first position. 23. A method of making a blow-molded plastic container having a base portion that supports the container, the method comprising: disposing a preform in a mold having a base forming assembly to form a portion of the base portion of the container, the base forming assembly including a base forming portion and a movable insert portion that is movable relative to the base forming portion;blowing the preform against the base forming assembly of the mold to form a container body having the base portion, the base portion including a thinned wall portion, a first portion disposed radially outward of the thinned wall portion, and a second portion disposed radially inward of the thinned wall portion, the thinned wall portion defining a hinge portion and having a wall thickness that is thinner than immediately surrounding portions on both sides thereof, the hinge portion being constructed and operative to facilitate movement of the second portion in a direction toward an inner volume of the container; andmoving the movable insert portion of the base forming assembly relative to the base forming portion of the base forming assembly while the base portion of the container remains in the mold so as to advance the movable insert portion in the direction toward the inner volume of the container,wherein said advancing the movable insert portion causes inversion of the second portion at the hinge portion. 24. A method of making a blow-molded plastic container having a base portion that supports the container, the method comprising: disposing a preform in a mold having a base forming assembly to form a portion of the base portion of the container, the base forming assembly including a base forming portion and a movable insert portion that is movable relative to the base forming portion;blowing the preform against the base forming assembly of the mold to form a container body having the base portion, the base portion including a thinned wall portion, a first portion disposed radially outward of the thinned wall portion, and a second portion disposed radially inward of the thinned wall portion, the thinned wall portion defining a hinge portion and having a wall thickness that is thinner than immediately surrounding portions on both sides thereof, the hinge portion being constructed and operative to facilitate movement of the second portion in a direction toward an inner volume of the container; andmoving the movable insert portion of the base forming assembly relative to the base forming portion of the base forming assembly while the base portion of the container remains in the mold so as to advance the movable insert portion in the direction toward the inner volume of the container,wherein the second portion is centrally located about a central longitudinal axis of the container, the second portion having a portion thereof that is always at a highest most position with respect to a plane running through a bearing surface of the plastic container, as compared to other portions of the container base portion.
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