|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||B65B-031/04 B65B-007/28 B65B-063/08|
|미국특허분류(USC)||53/431 ; 53/432 ; 53/440 ; 53/471|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 93 인용 특허 : 0|
A method of hot filling a plastic container includes the steps of introducing a heated product into the container at a temperature of about 190°F., introducing liquid nitrogen into the container and sealing the container before any significant thermal distortion occurs and cooling the container to room temperature, while maintaining a positive pressure within the cooled container.
A method of hot-fill packaging a product comprising the steps of: providing a blow-molded plastic container having an inherently high polymer orientation and subject to thermal deformation at an elevated hot-fill temperature; introducing product into said plastic container at said elevated hot-fill temperature; introducing a predetermined quantity of liquified gas into the container; permitting said gas to begin to vaporize; and rapidly sealing the container before any significant thermal distortion of the container occurs, and to retain an amount of sai...