DEVICE AND METHOD OF PACKAGE DEGASSING Russian patent published in 2020 - IPC B65B31/04 

FIELD: food industry; packaging and storage.

SUBSTANCE: group of inventions can be used for packaging a food product. Device (1) is intended for gas evacuation in packaging device from package (50), which has open end (55), having end part (54), non-end portion (52) and intermediate part (53) located between end part (54) and non-end part (52) of open end (55). Device (1) comprises vacuum chamber (10) with elongated hole (14) extending along longitudinal axis of vacuum chamber (10), evacuation device configured to create inside vacuum chamber (10) a vacuum pressure below atmospheric pressure outside of vacuum chamber (10), means (30) for moving package (50) relative to vacuum chamber (10) and control unit (60) programmed to control means (30) for relative displacement of evacuated package (50) relative to vacuum chamber (10). Package (50) and movement means (30) are located relative to vacuum chamber (10) such that main direction (40) of the movement of packages (50) arranged on movement means (30), and longitudinal axis of vacuum chamber (10), mainly, are parallel to each other. Evacuated package (50) is arranged such that during movement of package (50) relative to vacuum chamber (10), end part (54) of open end (55) of package (50) performs relative movement inside vacuum chamber (10), non-end part (52) of open end (55) made relative movement outside of vacuum chamber (10), and intermediate part (53) of open end (55) passed through hole (14) and performed relative displacement along its length. Vacuum chamber (10) contains the first subchamber and the second subchamber. Control unit is additionally programmed to create the first pressure in the first subchamber and to create in the second under-chamber a second pressure differing from the first pressure. Packing method envisages use of gas pumping device and packing device containing gas pumping device.

EFFECT: higher efficiency of packing products of larger size using a shallow vacuum system, applicable for products of various sizes, as well as improved continuous pumping of gas and/or air from the package.

15 cl, 34 dwg