IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0504506
(2003-02-27)
|
등록번호 |
US-7296390
(2007-11-20)
|
우선권정보 |
NZ-517488(2002-02-27); NZ-523298(2002-12-20); NZ-523718(2003-01-21) |
국제출원번호 |
PCT/NZ03/000034
(2003-02-27)
|
§371/§102 date |
20050323
(20050323)
|
국제공개번호 |
WO03/072438
(2003-09-04)
|
발명자
/ 주소 |
- Koke,John
- Brinkman,Jacob
- Whitehead,Ron
- Stevens,David
|
출원인 / 주소 |
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
20 |
초록
▼
A vacuum packaging machine includes a plurality of vacuum chambers (3a, 3b) each arranged to receive at least one unsealed product package and operable to perform an independent vacuum sealing operation, each vacuum chamber having a longitudinal direction defined by a direction of travel of the resp
A vacuum packaging machine includes a plurality of vacuum chambers (3a, 3b) each arranged to receive at least one unsealed product package and operable to perform an independent vacuum sealing operation, each vacuum chamber having a longitudinal direction defined by a direction of travel of the respective product package through the chamber (3a, 3b), each chamber having a heat seal assembly (15) therein which extends transversely to the longitudinal direction. An infeed conveyor (17) can be provided with a telescoping portion (17a) which can extend over the heat seal assembly or a part thereof. Each vacuum chamber can have a respective bed (9) and independently moveable hood (11), and the beds (9) can be synchronously vertically moveable. The vacuum packaging machine can be used in combination with a suitable product bagging or wrapping machine.
대표청구항
▼
What is claimed is: 1. A vacuum packaging machine comprising a plurality of vacuum chambers each arranged to receive an unsealed product package and operable to perform a vacuum sealing operation on the respective unsealed product package, each vacuum chamber having a longitudinal direction defined
What is claimed is: 1. A vacuum packaging machine comprising a plurality of vacuum chambers each arranged to receive an unsealed product package and operable to perform a vacuum sealing operation on the respective unsealed product package, each vacuum chamber having a longitudinal direction defined by a direction of travel of the respective product package through the chamber, each vacuum chamber having therein a heat seal assembly for forming a heat seal across the respective product package, the heat seal disposed transversely to said longitudinal direction, wherein the vacuum packaging machine comprises a conveyor arrangement configured to load and unload a product package to and from a respective vacuum chamber, the conveyor arrangement comprising an infeed conveyor operable to load a selected vacuum chamber with a product package, wherein the infeed conveyor has a telescoping portion operable to telescope over a portion of the heat seal assembly in a vacuum chamber to load the product package into the vacuum chamber such that an unsealed portion of the product package is located over a portion of the heat seal assembly, and to then retract from the chamber to allow the chamber to close to perform the vacuum sealing operation. 2. A vacuum packaging machine comprising a plurality of vacuum chambers each arranged to receive an unsealed product package and operable to perform a vacuum sealing operation on the respective unsealed product package, each vacuum chamber having a longitudinal direction defined by a direction of travel of the respective product package through the chamber, each vacuum chamber having therein a heat seal assembly for forming a heat seal across the respective product package, the heat seal disposed transversely to said longitudinal direction, wherein each vacuum chamber comprises an internal conveyor moveable in the longitudinal direction of the vacuum chamber to expel the respective product package from the vacuum chamber following the vacuum sealing operation, wherein a portion of the internal conveyor extends under a portion of the heat seal assembly in each vacuum chamber. 3. A vacuum packaging machine comprising a plurality of vacuum chambers each arranged to receive an unsealed product package and operable to perform a vacuum sealing operation on the respective unsealed product package, each vacuum chamber having a longitudinal direction defined by a direction of travel of the respective product package through the chamber, each vacuum chamber having therein a heat seal assembly for forming a heat seal across the respective product package, the heat seal disposed transversely to said longitudinal direction, wherein each vacuum chamber comprises an internal conveyor moveable in the longitudinal direction of the vacuum chamber to expel the respective product package from the vacuum chamber following the vacuum sealing operation, wherein each vacuum chamber includes a vacuum chamber hood and wherein a portion of the internal conveyor in each vacuum chamber extends under the vacuum chamber hood thereof, and wherein the internal conveyor includes a belt having a smooth underside so that the vacuum chamber hood seals over the belt. 4. A vacuum packaging machine comprising a plurality of vacuum chambers each arranged to receive an unsealed product package and operable to perform a vacuum sealing operation on the respective unsealed product package, each vacuum chamber having a longitudinal direction defined by a direction of travel of the respective product package through the chamber, each vacuum chamber having therein a heat seal assembly for forming a heat seal across the respective product package, the heat seal disposed transversely to said longitudinal direction, wherein each vacuum chamber comprises an internal conveyor moveable in the longitudinal direction of the vacuum chamber to expel the respective product package from the vacuum chamber following the vacuum sealing operation, wherein at least a portion of the heat seal assembly is retractable to enable a product package to be moved past the heat seal assembly on the internal conveyor, and a telescoping conveyor is substantially vertically aligned with the internal chamber conveyor in a product package loading configuration. 5. A vacuum packaging machine comprising a plurality of vacuum chambers each arranged to receive an unsealed product package and operable to perform a vacuum sealing operation on the respective unsealed product package, each vacuum chamber having a longitudinal direction defined by a direction of travel of the respective product package through the chamber, each vacuum chamber having therein a heat seal assembly for forming a heat seal across the respective product package, the heat seal disposed transversely to said longitudinal direaction, wherein the vacuum packaging machine comprises a puncturing device operable to puncture an aperture in the product package adjacent the heat seal assembly, so that as each vacuum sealing operation occurs, air is forced out of the package through the punctured aperture prior to heat sealing. 6. The vacuum packaging machine of claim 5 comprising a cutting device operable to cut the product package between the heat seal assembly and the puncturing device following each vacuum sealing operation. 7. A vacuum packaging machine comprising a plurality of vacuum chambers each arranged to receive an unsealed product package and operable to perform a vacuum sealing operation on the respective unsealed product package, each vacuum chamber having a longitudinal direction defined by a direction of travel of the respective product package through the chamber, each vacuum chamber having therein a heat seal assembly for forming a heat seal across the respective product package, the heat seal disposed transversely to said longitudinal direaction, wherein a transverse heat seal assembly is located in a longitudinal position in each vacuum chamber such that there is sufficient spacing between end walls of the vacuum chamber and each heat seal assembly for a product package containing two products to be loaded into the vacuum chamber with one product located in front of the heat seal assembly and the other product located behind the heat seal assembly, the heat seal assembly arranged to seal and cut across the product package between two products to form two separate evacuated packages. 8. A vacuum packaging machine comprising a plurality of vacuum chambers each arranged to receive an unsealed product package and operable to perform a vacuum sealing operation on the respective unsealed product package, each vacuum chamber having a longitudinal direction defined by a direction of travel of the respective product package through the chamber, each vacuum chamber having therein a heat seal assembly for forming a heat seal across the respective product package, the heat seal disposed transversely to said longitudinal direaction, the vacuum packaging machine comprising a sealing mechanism adapted to form a temporary seal on part of each product package prior to loading into the vacuum packaging machine to assist in positioning that part of the product package in relation to the heat seal assembly during loading of the product package into the vacuum packaging machine, and maintain that part of the product package under some tension, the vacuum packaging machine configured to evacuate the product package and form a permanent seal in the product package. 9. The vacuum packaging machine of claim 8 wherein the sealing mechanism is configured to form the temporary seal on one part of each product package and the permanent seal on another part of each product package. 10. The vacuum packaging machine of claim 8 wherein the sealing mechanism includes a cutting device for separating adjacent packages between the temporary seal and the permanent seal. 11. The vacuum packaging machine of claim 8 wherein the sealing mechanism is configured to capture air in the product package as the presentation temporary seal is formed.
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