Compression molded preform for forming invertible base hot-fill container, and systems and methods thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-001/02
B29B-011/14
B65D-001/02
B29B-011/12
B29C-043/36
B29L-023/00
B29K-067/00
B29C-049/12
B29C-049/02
출원번호
US-0916528
(2010-10-30)
등록번호
US-8962114
(2015-02-24)
발명자
/ 주소
Nahill, Thomas E.
Armstrong, Ralph
출원인 / 주소
Graham Packaging Company, L.P.
대리인 / 주소
Baker Botts L.L.P.
인용정보
피인용 횟수 :
2인용 특허 :
263
초록▼
A compression molded preform for forming an invertible base hot-fill container, and systems and methods thereof. The preform includes a body with a first open end, a second closed end or end cap of hemispherical shape, and a sidewall extending between the first end and the second end. At least a por
A compression molded preform for forming an invertible base hot-fill container, and systems and methods thereof. The preform includes a body with a first open end, a second closed end or end cap of hemispherical shape, and a sidewall extending between the first end and the second end. At least a portion of the second end is thinner than any portion of the sidewall. Further, the second end is gateless and has an inner surface that is substantially smooth along its entire area. The compression molded preform is blow molded to form a plastic container with an invertible or movable base. The invertible or movable base is responsive to, or can be moved based on, internal forces or pressure associated with processing the container with a filled product.
대표청구항▼
1. A compression molded plastic preform for forming a blow molded plastic container having an invertible base portion, the preform having a hollow body defining an inner volume, the preform body comprising: a first, open end defining an opening into the inner volume, the first end having threads;a s
1. A compression molded plastic preform for forming a blow molded plastic container having an invertible base portion, the preform having a hollow body defining an inner volume, the preform body comprising: a first, open end defining an opening into the inner volume, the first end having threads;a second, closed end opposite the first end in a length-wise direction of the preform body; andan intermediate portion between the first end and the second end, the intermediate portion having a sidewall extending in the length-wise direction of the preform body along a central longitudinal axis of the preform body and a transition portion adjacent the second closed end, the intermediate portion tapering from a relatively thin portion adjacent the first open end to a relatively thick portion and tapering from the relatively thick portion through the transition portion to the second closed end, the transition portion including an outer surface with a first curved portion having a convex cross-section in side view and a second curved portion having a concave cross-section in side view,wherein the second end of the preform body is gateless and without a weld line,wherein the second end is hemispherical, an entirety of an outer surface of the second hemispherical end being smooth, and an inner surface of the second hemispherical end at least at a portion of the second end not at the central longitudinal axis being smooth and without any sharp transitions, andwherein the second end has a portion that is thinner than any other portion of the preform. 2. The preform of claim 1, wherein the second end has a protruding portion that is formed at the central longitudinal axis and that protrudes inward into the inner volume of the preform body, the protruding portion being adapted to mate with a stretch rod for stretching the preform during the blow molding process in order to maintain the stretch rod substantially centered at the central longitudinal axis. 3. The preform of claim 1, wherein the entirety of the second end is configured to be oriented during a blow molding operation to form the blow molded container. 4. The preform of claim 1, wherein the portion of the second end that is thinner than any other portion of the preform is the entire second end. 5. The preform of claim 1, wherein the second end has a portion at the central longitudinal axis that is the thinnest portion thereof. 6. The preform of claim 1, wherein the transition portion is adapted to form a thin base portion of a resultant container formed by blow molding the preform, the thin base portion being thinner than a sidewall of the resultant container. 7. The preform of claim 1, wherein the transition portion is configured to form a standing surface for the blow molded container, and the second end is configured to form the invertible base portion,wherein the base portion is invertible in response to internal pressures experienced by the container upon hot-filling and cooling. 8. The preform of claim 1, wherein the transition portion is configured to form a standing surface for the blow molded container, and the second end is configured to form the invertible base portion, andwherein the base portion is adapted to be mechanically inverted by a mechanical apparatus external to the blow molded container to reduce an internal vacuum created by hot-filling the blow molded container with a product, capping the hot-filled container, and cooling hot-filled and capped container. 9. The preform of claim 1, wherein the second end is configured to form the invertible base portion, the base portion being adapted to pull inward under vacuum pressure during hot-fill and cooling operations. 10. The preform of claim 1, a minimum thickness of the second end is 50% or less than a maximum thickness of the sidewall. 11. The preform of claim 1, wherein the transition portion provides a transition from the sidewall to the second end and the first curved portion is adjacent to the sidewall and the second curved portion is adjacent to the second end. 12. The preform of claim 11, wherein the convex cross-section of the first curved portion is defined by a radius projecting toward the longitudinal axis, and the concave cross-section of the second curved portion is defined b a radius projecting outward from the longitudinal axis.
Takada, Takuzo, Apparatus for biaxial-blow-molding hollow bottle-shaped container of synthetic resin and method of biaxial-blow-molding the same container.
Ford Geoffrey E. (Bedford GB2) Pantelides Antis (Bedford GB2) Willsmer Trevor R. (Bedford GB2), Apparatus for deflecting bottles in bottle feeding apparatus.
Takada, Takuzo; Sugirua, Hiroaki; Ilzuka, Takao, Apparatus for filling a high temperature liquid into a biaxially oriented, saturated polyester bottle, a device for cooling said bottle.
Jakobsen Kjell M. (Skanor SEX) Nilsson Claes T. (Loddekpinge SEX), Apparatus for producing a biaxially oriented container of polyethylene terephthalate or similar material.
Fischer ; Stefan ; Wollschlager ; Dieter ; Scharrenbroich ; Helmut ; Fi scher ; Rainer, Apparatus for the manufacture of a thermoplastic container with a handle.
Fandeux Isabelle (Evian-les-Bains FRX) Petre Jean-Marie (Bons-en-Chablais FRX), Axially-crushable bottle made of plastics material, and tooling for manufacturing it.
Krishnakumar Suppayan M. (Nashua NH) Collette Wayne N. (Merrimack NH) Miller Bryan H. (Florence KY), Base configuration for an internally pressurized container.
Malik John H. (Naperville IL) Mikula John J. (Kennesaw GA) Julien Robert A. (Naperville IL), Blow molding a closed plastic drum including two speed compression molding of an integral handling ring.
Bartley Harold D. (Springfield OH) Gaiser William R. (Dayton OH) ..AP: Broadway Companies ; Inc. (Dayton OH 02), Blown plastic container having an integral single thickness skirt of bi-axially oriented PET.
Hansen Jeffrey E. ; Osakada Kunio,JPX ; Myers Michael J., Container and method of making container from polyethylene naphthalate and copolymers thereof.
Dulmaine Joseph Francis (Wheatridge CO) Bagrosky Michael Edward (Arvada CO), Container with outwardly flexible bottom end wall having integral support means and method and apparatus for manufacturi.
Alberghini Alfred C. (Dunwoody GA) Brunson David A. (Marietta GA) Lynn Stephen R. (Douglasville GA), Hot fill container with reconfigurable convex volume control panel.
Vailliencourt Dwayne G. (Manchester MI) Eberle ; Jr. Theodore F. (Kapellen BEX), Hot fill plastic container having reinforced pressure absorption panels.
Roger M. Prevot ; Robert Andrew Stewart ; Jay Arnold ; Nicole Green ; Marvin Lee Smith ; Tracy Marie Momany, Hot-fillable and retortable flat paneled jar.
Leftault ; Jr. Charles J. (Murrysville PA) Willis W. Coy (Verona PA), Inwardly reformable endwall for a container and a method of packaging a product in the container.
Bysick, Scott; Trude, Gregory A., Method for handling a hot-filled container having a moveable portion to reduce a portion of a vacuum created therein.
Nahill Thomas E. ; Krishnakumar Suppayan M. ; Collette Wayne N., Method for preventing uncontrolled polymer flow in preform neck finish during packing and cooling stage.
Agrawal Purushottam D. (South Windsor CT) Mandell John F. (Wayland MA), Method for producing a collapse resistant polyester container for hot fill applications.
Collette Wayne N. (Merrimack NH) Krishnakumar Suppayan M. (Nashua NH) Lin Chih C. (Nashua NH), Method of forming a container having a low crystallinity.
Collette Wayne N. ; Krishnakumar Suppayan M. ; Lin Chi Ching,TWX, Method of forming container with high-crystallinity sidewall and low-crystallinity base.
McHenry Robert J. (St. Charles IL) Brito Joseph B. (Wildwood IL) Piatt ; Jr. Wilson T. (Sugar Grove IL) Reed Robert J. (Crystal Lake IL) Vavadarajan Krishnaraju (Hoffman Estates IL) Spencer Kenneth B, Method of obtaining acceptable configuration of a plastic container after thermal food sterilization process.
McHenry Robert J. (St. Charles IL) Brito Joseph B. (Wildwood IL) Piatt ; Jr. Wilson T. (Sugar Grove IL) Reed Robert J. (Jackson MS) Varadarajan Krishnaraju (Hoffman Estates IL) Spencer Kenneth B. (Ba, Method of obtaining acceptable configuration of a plastic container after thermal food sterilization process.
McHenry Robert J. (St. Charles IL) Brito Joseph B. (Wildwood IL) Piatt ; Jr. Wilson T. (Sugar Grove IL) Reed Robert J. (Jackson MS) Varadarajan Krishnaraju (Hoffman Estates IL) Spencer Kenneth B. (Ba, Method of obtaining acceptable configuration of a plastic container after thermal food sterilization process.
Zenger Richard D. (Downers Grove IL) Cornell Stephen W. (Wheaton IL) Schneiders E. James (Winnetka IL), Method of packaging products in plastic containers.
Andison, David; Scheffer, Steven, Method of supporting plastic containers during product filling and packaging when exposed to elevated temperatures and internal pressure variations.
Collette Wayne N. ; Schmidt Steven L. ; Krishnakumar Suppayan M., Multilayer preform and container with polyethylene naphthalate (PEN), and method of forming same.
Melrose, David Murray; Bysick, Scott E.; Harrell, George T.; Ogg, Richard K.; Pritchett, Jr., Raymond A., Plastic container having an inverted active cage.
Pocock John F. E. (Neu-Isenburg NH DEX) Mahajan Gautam K. (Nashua NH) Krishnakumar Suppayan M. (Nashua NH) Friendship Kenneth F. M. (Clarendon Hills IL), Plastic container with internal rib reinforced bottom.
Gygax Ralph A. (Westerville OH) Lippian Joseph M. (Worthington OH) Loughrin Thomas D. (Columbus OH) Malone William T. (Columbus OH) Osip Thomas W. (Worthington OH) Pezzoli Paul A. (Worthington OH), Plastic containers capable of surviving sterilization.
Hoppmann Kurt H. (Falls Church VA) Lin James G. (Springfield VA) Schmitt Werner H. (Falls Church VA), Rotary puck conveying, accumulating and qualifying mechanism.
Copland Donald S. (Lebanon OH) Halstead Larry D. (Hamilton OH) O\Brien Lawrence E. (Cincinnati OH), Shaped thermoformed flexible film container for granular products and method and apparatus for making the same.
Bhatia Chandrakant R. (Libertyville IL) Kuhns Richard J. (Crystal lake IL) Vannice Steven D. (Wheeling IL) Stober Michael E. (Woodland Hills CA), System and method for seeking and presenting an area for reading with a vision system.
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