IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0573900
(2009-10-06)
|
등록번호 |
US-8602237
(2013-12-10)
|
발명자
/ 주소 |
- Wurster, Michael P.
- Howell, Justin A.
- Kelly, Michael T.
- Waltemyer, Robert
- Lewis, Benton A.
|
출원인 / 주소 |
- Graham Packaging Company, L.P.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
42 |
초록
▼
A blow molded plastic container for hot fill and pasteurization uses includes a main body portion that is shaped so as to be substantially rectangular in horizontal cross-section and a base portion. The base portion is shaped to define a generally rectangular standing ring and an elevated push-up po
A blow molded plastic container for hot fill and pasteurization uses includes a main body portion that is shaped so as to be substantially rectangular in horizontal cross-section and a base portion. The base portion is shaped to define a generally rectangular standing ring and an elevated push-up portion that is positioned radially inward of the standing ring. The push-up portion includes a central region, an annular, substantially straight and substantially vertical rise portion that is positioned immediately radially inward of the standing ring and a plurality of radially oriented waves. Each of the waves extends radially outwardly from the central region to the vertical rise portion. The main body portion is shaped so as to have sidewall portions that are bounded by a plurality of vertically extending edge portions. In one embodiment, at least one of the vertically extending edge portions may have at least one inwardly extending gusset.
대표청구항
▼
1. A blow molded plastic container, comprising: a main body portion, said main body portion being shaped so as to be substantially rectangular in horizontal cross-section; anda base portion, said base portion defining a generally rectangular standing ring and an elevated push-up portion that is posi
1. A blow molded plastic container, comprising: a main body portion, said main body portion being shaped so as to be substantially rectangular in horizontal cross-section; anda base portion, said base portion defining a generally rectangular standing ring and an elevated push-up portion that is positioned radially inward of said standing ring, andwherein said push-up portion has a bottom wall portion that is shaped to define: a central region;an annular, substantially straight and substantially vertical generally rectangular rise portion that is positioned immediately radially inward of said standing ring; anda plurality of radially oriented waves, each of said waves extending radially outwardly from said central region continuously to said generally rectangular vertical rise portion. 2. A blow molded plastic container according to claim 1, wherein each of said waves includes a peak portion that is convexly radiused to extend downwardly and a trough portion that is concavely radiused to extend upwardly. 3. A blow molded plastic container according to claim 2, wherein said generally rectangular standing ring has four corner portions, and wherein each of said corner portions is radially aligned with a peak portion of a corresponding wave. 4. A blow molded plastic container according to claim 2, wherein said peak portion has a radially oriented axis, a first transverse mean radius of curvature at a first location, and a second transverse mean radius of curvature at a second location that is radially outward from said first location, and wherein said second transverse mean radius of curvature is greater than said first transverse mean radius of curvature. 5. A blow molded plastic container according to claim 2, wherein said trough portion has a radially oriented axis, a first transverse mean radius of curvature at a first location, and a second transverse mean radius of curvature at a second location that is radially outward from said first location, and wherein said second transverse mean radius of curvature is greater than said first transverse mean radius of curvature. 6. A blow molded plastic container according to claim 1, wherein said vertical rise portion extends for a vertical height from said standing ring that is within a range of about 0.036 inch to about 0.2 inch. 7. A blow molded plastic container according to claim 1, wherein each of said waves is shaped so as to subtend a substantially constant angle along its length. 8. A blow molded plastic container according to claim 1, wherein said waves are symmetrically arranged about said central region. 9. A blow molded plastic container according to claim 1, wherein at least four of said waves are provided. 10. A blow molded plastic container according to claim 1, wherein at least six of said waves are provided. 11. A blow molded plastic container according to claim 1, wherein said substantially rectangular main body portion has a plurality of vertically extending edge portions, and wherein at least one of said edges has at least one inwardly extending gusset defined therein. 12. A blow molded plastic container according to claim 1, wherein said container is fabricated from polyethylene terephthalate (PET). 13. A heat sterilizable blow molded plastic container, comprising: a base portion; anda main body portion, said main body portion being substantially rectangular in transverse cross-section and shaped so as to have a plurality of sidewall portions that are bounded by a plurality of vertically extending edge portions; and whereinat least one of said vertically extending edge portions has at least one inwardly extending gusset defined therein, the gusset having a concave inner surface. 14. A blow molded plastic container according to claim 13, wherein at least one of said sidewall portions has at least one support rib defined therein. 15. A blow molded plastic container according to claim 14, wherein said support rib is oriented so as to be substantially horizontal. 16. A blow molded plastic container according to claim 15, wherein said inwardly extending gusset is not disposed in the same horizontal plane as said support rib. 17. A blow molded plastic container according to claim 13, wherein said at least one of said vertically extending edge portions has a plurality of said inwardly extending gussets defined therein. 18. A blow molded plastic container according to claim 13, wherein a plurality of said vertically extending edge portions have at least one inwardly extending gusset defined therein. 19. A blow molded plastic container according to claim 18, wherein each of said vertically extending edge portions has a plurality of said inwardly extending gussets defined therein. 20. A blow molded plastic container according to claim 13, wherein said container is fabricated from polyethylene terephthalate (PET). 21. A blow molded plastic container according to claim 13, wherein the gusset is defined by a groove that extends along an axis that forms substantially equal angles with respective planes in which the adjacent sidewall portions reside. 22. A blow molded plastic container according to claim 13, wherein each of the sidewall portions includes a plurality of substantially horizontally oriented structural reinforcement features, and wherein the gusset is not disposed in a common horizontal plane with any of the horizontally oriented structural reinforcement features.
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