IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0063219
(2006-07-13)
|
등록번호 |
US-7784249
(2010-09-20)
|
우선권정보 |
SE-0501872(2005-08-23) |
국제출원번호 |
PCT/SE2006/000874
(2006-07-13)
|
§371/§102 date |
20080207
(20080207)
|
국제공개번호 |
WO07/024172
(2007-03-01)
|
발명자
/ 주소 |
- Lindblad, Ulf
- Olsson, Jenny Karolina
- Sundberg, Anders
|
출원인 / 주소 |
- Tetra Laval Holdings & Finance S.A.
|
대리인 / 주소 |
Buchanan Ingersoll & Rooney PC
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
7 |
초록
▼
A method and apparatus for supplying a gas or gas mixture to the inside of partly formed packages which are ready-to-fill, before a subsequent filling and sealing of the packages in a filling machine. The method involves supplying the gas or gas mixture at any given moment as a flow which is radiall
A method and apparatus for supplying a gas or gas mixture to the inside of partly formed packages which are ready-to-fill, before a subsequent filling and sealing of the packages in a filling machine. The method involves supplying the gas or gas mixture at any given moment as a flow which is radially outwardly and inwardly defined in relation to the inner wall of the package, with the flow being angled with respect to the geometric major longitudinal axis of the package which intersects its opening so that the flow, since it is defined by the inner wall of the package, is positively controlled for the formation of a helical flow vortex.
대표청구항
▼
The invention claimed is: 1. In an apparatus in a filling machine, a method of supplying a gas or gas mixture to an interior of partly formed packages which are ready-to-fill, before a subsequent filling and sealing of the packages, wherein the gas or gas mixture supplied at any given moment is sup
The invention claimed is: 1. In an apparatus in a filling machine, a method of supplying a gas or gas mixture to an interior of partly formed packages which are ready-to-fill, before a subsequent filling and sealing of the packages, wherein the gas or gas mixture supplied at any given moment is supplied as a flow which is radially outwardly and inwardly defined in relation to an inner wall of the package, the flow being angled with respect to a geometric major longitudinal axis of the package which intersects an opening of the package so that the flow, since it is defined by the inner wall of the package, is positively controlled for formation of a helical flow vortex. 2. The method as claimed in claim 1, wherein the interior of the packages is supplied, progressively via an open end of each package, with a sterile hot air flow, followed by a gaseous sterilisation agent flow, and then a sterile air flow. 3. The method as claimed in claim 1, wherein a gaseous sterilisation agent is progressively admixed to an initially supplied hot air gas flow in the machine direction (MD). 4. The method as claimed in claim 1, wherein the radial defining of the flow inwardly in the package is restricted by a return flow in the central region of each package. 5. The method as claimed in claim 1, wherein the flow is supplied by two or more channels per open package end. 6. The method as claimed in claim 4, wherein the channels are angled so that flow directions therefrom fall outside both planes of symmetry which have an axis of symmetry which at right angles intersects the opening of the package as a common line so that the channels are angled in a first direction somewhat peripherally and are angled in a second direction slightly towards the centre of the package. 7. The method as claimed in claim 6, wherein the channels are angled less than or equal to 8° in each of the first and second directions, respectively. 8. The method as claimed in claim 1, wherein the flow of the gas or gas mixture is maintained continuously over time. 9. The method as claimed in claim 1, wherein the gas or gas mixture is reused, wherein the gas or gas mixture in the package to be reused flows out of the package through an outlet provided centrally at a mouth of each respective package. 10. An apparatus in a filling machine for supplying gas or gas mixtures to an interior of packages before a subsequent filling and sealing thereof, comprising a nozzle which includes at least one channel for gas or gas mixture which is angled in relation to at least one plane containing one of the geometric major axes of the package which intersects an opening of the package at a right angle such that the flow from the channel, when it impinges on an inner wall of the package, develops a both radially inwardly and outwardly defined flow while forming a positively driven helical flow vortex. 11. The apparatus as claimed in claim 10, wherein the at least one channel comprises a plurality of channels angled so that a flow direction out of the channels falls outside planes which are parallel with any planes of symmetry which have an axis of symmetry intersecting the opening of the package at right angles as a common line, and are directed in a first direction somewhat peripherally and in a second direction slightly towards a center of the package. 12. The apparatus as claimed in claim 11, wherein the channels are angled less than or equal to 8° in each respective direction. 13. The apparatus as claimed in claim 10, further comprising gas recycling equipment comprising an outlet which is centrally placed in association with a mouth of each respective package. 14. In an apparatus in a filling machine, a method of supplying a gas or gas mixture to package before the package is filled with contents and sealed, the method comprising: positioning a nozzle apparatus adjacent an open end of the package, which package possesses an interior, the nozzle apparatus comprising at least one channel; supplying a flow of the gas or gas mixture into the interior of the package by way of the channel to produce a helical flow vortex in the interior of the package; and discharging the gas or gas mixture out of the interior of the package. 15. The method as claimed in claim 14, wherein the flow of the gas or gas mixture into the interior of the package is angled with respect to a geometric major longitudinal axis of the package which intersects the open end of the package. 16. The method as claimed in claim 14, wherein the supplying of the flow of the gas or gas mixture comprises supplying a flow of sterile hot air to the interior of the package by way of the channel, thereafter supplying a flow of gaseous sterilization agent to the interior of the package by way of the channel, and thereafter supplying a flow of sterile air to the interior of the package by way of the channel. 17. The method as claimed in claim 14, wherein the discharge of the gas or gas mixture is along a central region of the interior of the package. 18. The method as claimed in claim 14, the gas or gas mixture flows into the interior of the package by way of a plurality of channels. 19. The method as claimed in claim 18, wherein the channels are angled so that the flow out of the channels into the interior of the package is along directions outside both planes of symmetry which have an axis of symmetry which at right angles intersects the opening of the package as a common line so that the channels are angled in a first direction somewhat peripherally and are angled in a second direction slightly towards the centre of the package. 20. The method as claimed in claim 19, wherein the channels are angled less than or equal to 8° in each of the first and second directions.
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