System for processing a pressure reinforced plastic container
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B67C-007/00
B65B-003/02
B65B-061/24
B67C-003/22
출원번호
US-0885533
(2010-09-19)
등록번호
US-8720163
(2014-05-13)
우선권정보
NZ-521694 (2002-09-30)
발명자
/ 주소
Melrose, David
Kelley, Paul
Denner, John
출원인 / 주소
CO2 Pac Limited
대리인 / 주소
Henricks, Slavin & Holmes LLP
인용정보
피인용 횟수 :
6인용 특허 :
166
초록▼
A plastic container comprises an upper portion including a finish adapted to receive a closure, a lower portion including a base, and a sidewall extending between the upper portion and the lower portion. The upper portion, the lower portion, and the sidewall define an interior volume for storing liq
A plastic container comprises an upper portion including a finish adapted to receive a closure, a lower portion including a base, and a sidewall extending between the upper portion and the lower portion. The upper portion, the lower portion, and the sidewall define an interior volume for storing liquid contents. The plastic container further comprises a pressure panel located on the container and moveable between an initial position and an activated position. The pressure panel is located in the initial position prior to filling the container, and is moved to the activated position after filling and sealing the container. Moving the pressure panel from the initial position to the activated position reduces the internal volume of the container and creates a positive pressure inside the container. The positive pressure reinforces the sidewall. A method of processing a container is also disclosed.
대표청구항▼
1. A system for processing a pre-formed plastic container filled with a hot product, the container having a longitudinal axis, the system comprising: hot filling means for filling a rigid container body of the pre-formed plastic container with the hot product in a production line, the rigid containe
1. A system for processing a pre-formed plastic container filled with a hot product, the container having a longitudinal axis, the system comprising: hot filling means for filling a rigid container body of the pre-formed plastic container with the hot product in a production line, the rigid container body having a surface surrounding an interior of the rigid container body and having a closed base comprising a standing surface and a centrally located push-up portion configured to receive a mechanical device, the base also having pressure panel that is invertible from an outwardly inclined position to an inwardly inclined position, the pressure panel extending between the standing surface and the push-up, and wherein the pressure panel includes a portion inclined outwardly at an angle of greater than 10 degrees relative to a plane orthogonal to the longitudinal axis when in the outwardly inclined position;means for capping a neck of the filled rigid container body with a cap in the next operation of the production line;means for conveying through the production line the pre-formed plastic container having the pressure panel in the outward position;means for cooling the rigid container body of the pre-formed plastic container filled with the hot product; andmeans for pushing the pressure panel from the outwardly inclined position of the cooled rigid container body into the inwardly inclined position within the interior of the rigid container. 2. The system for processing a pre-formed plastic container according to claim 1, wherein, when the rigid container body is cooled by said means for cooling, the cooling produces a vacuum within the rigid container body, and substantially all of the vacuum is taken up by the pushing of the pressure panel. 3. The system for processing a pre-formed plastic container according to claim 1, further comprising means for blow-molding a parison to form the rigid container body, where the rigid container body has the neck, a shoulder area, the base, and a side surface surrounding the interior of the rigid container body, and the base includes an instep connected by a hinge structure to the outwardly inclined pressure panel before the filling begins. 4. The system for processing a pre-formed plastic container according to claim 3, wherein the instep is inwardly recessed from the standing surface to such an extent that the entire pressure panel is contained above the standing surface. 5. The system for processing a pre-formed plastic container according to claim 4, wherein the conveyor means supports the standing surface of the rigid container body. 6. The system for processing a pre-formed plastic container according to claim 1, wherein the rigid container body with the pressure panel in the outwardly inclined position is conveyed by its neck during the filling and capping. 7. The system for processing a pre-formed plastic container according to claim 1, wherein the means for pushing the pressure panel from the outwardly inclined position to the inwardly inclined position within the cooled rigid container body is configured to position a mechanical rod or punch-like device underneath a container. 8. The system for processing a pre-formed plastic container according to claim 1, wherein the rigid container body has a grip portion. 9. The system for processing a pre-formed plastic container according to claim 1, further comprising at least a portion of a sidewall of the container being configured to respond to vacuum pressure prior to the pushing of the pressure panel from the outwardly inclined position to the inwardly inclined position. 10. The system for processing a pre-formed plastic container according to claim 9, wherein the portion of the sidewall configured to respond to vacuum pressure is a vacuum panel. 11. The system for processing a pre-formed plastic container according to claim 10 wherein the vacuum panel takes up a first portion of vacuum pressure during the cooling of the hot product. 12. The system for processing a pre-formed plastic container according to claim 11, wherein the pushing of the pressure panel from the outwardly inclined position to the inwardly inclined position takes up at least a portion of a resultant vacuum caused by the cooling, and the vacuum panel takes up the remainder of the vacuum. 13. The system for processing a pre-formed plastic container according to claim 9, wherein the portion of the sidewall configured to respond to vacuum pressure is a grip portion. 14. The system for processing a pre-formed plastic container according to claim 1, wherein the centrally located push-up is recessed inwardly into the container. 15. The system for processing a pre-formed plastic container according to claim 1, wherein: the means for conveying is configured to convey a plurality of said filled and capped containers;the system further comprising: an in-feed apparatus, which includes at least one feed-in assembly, and which receives the filled and capped containers from said means for conveying; anda rotary apparatus configured to receive the plurality of filled and capped containers after said in-feed apparatus, wherein said in-feed apparatus is configured to create space between adjacent ones of the filled and capped containers, with said in-feed apparatus acting on the plurality of filled and capped containers to create the respective spaces, wherein the space created between adjacent ones of the filled and capped containers is for receipt by said rotary apparatus. 16. The system for processing a pre-formed plastic container according to claim 15, wherein said in-feed apparatus further includes an in-feed wheel to receive the filled and capped containers from said feed-in assembly and to feed the filled and capped containers to said rotary apparatus. 17. The system for processing a pre-formed plastic container according to claim 15, further comprising an in-feed wheel, wherein said in-feed apparatus is configured to feed the plurality of filled and capped containers having spaces therebetween to said in-feed wheel, and wherein said in-feed wheel is configured to feed the filled and capped containers having spaces therebetween to said rotary apparatus. 18. The system of claim 15, wherein said rotary apparatus includes said means for pushing being an actuator apparatus that moves the pressure panel positioned in a lower portion of each of the filled and capped containers from the outwardly inclined position to the inwardly inclined position, the pressure panel being at or entirely above the standing surface of the filled and capped container when in the outwardly inclined position and being above said standing surface when in the inwardly inclined position, said pressure panel being a vacuum panel. 19. The system of claim 18, further comprising an out-feed wheel, wherein the out-feed wheel is configured to receive the plurality of filled and capped containers having vacuum panels in the inwardly inclined position.
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