Tetra Laval Holdings & Finance S.a.

Tetra Alfa Holdings Sa

Jan Andersson

Lars Martensson

Anders Kristiansson

Filippo Ferrarini

Thomas Bjerborn

Arash Saeidihaghi

Detlef Elias

Karsten Sörensen

Ermanno Ricci

Fabio Vellani

Lennart Gustafsson

Ulf Johnsson

Goran Smith

Pär Olanders

The present invention relates to a device in a filling machine, said filling machine comprising a filling pipe for supplying liquid food to the tube of packaging material, a pipe for supplying pressurized sterile air to the tube of packaging material, and a gasket for sealing against the tube of packaging material and any pipes inside the tube, for creating an overpressure in the tube. The device further comprises a first pressure gauge for measuring a first pressure inside the pipe at a location upstream from the tube, a device for determining an air mass flow in the pipe, and a control unit for receiving the measured parameters, where the control unit is adapted to calculate the pressure in the tube based on the air mass flow and the first pressure, according to a first pre-established relationship. The invention also relates to a method being implemented by the device.

Device and method in a filling machine

A sterilizing unit comprising at least one heater is provided, wherein said heater comprises a housing and at least one heating element extending in said housing for heating a flow of air being directed through the housing, and wherein said heating element is formed as a band of an electrically conductive material.

Sterilizing unit comprising a heater

A unit for sterilizing a web () of packaging material on a machine () for packaging pourable food products, the unit having a bath () containing a sterilizing agent, in which the web () is fed continuously; a process chamber () connected to an outlet () of the bath (), and which houses wringing rollers () interacting with the web (), and a nozzle () for directing a stream of air on to the web () and removing residual sterilizing agent from the web; an aseptic chamber () communicating with the process chamber () via an opening () for passage of the web (), and in which the web () is folded and sealed longitudinally to form a tube () which is filled continuously with the product for packaging; and an air processing circuit () for controlling process conditions, and having a conduit () for feeding a first stream of sterile air into the aseptic chamber (), a conduit () for feeding a second stream of sterile air to the nozzle () and housing a heater () for controlling the temperature of the air supplied to the nozzle (), and a distributor for regulating the two streams of air.

Unit for sterilizing web-fed material on a machine for packaging pourable food products

A method of manufacturing and handling parts for a packaging container comprises the steps of producing a number of tops in the form of pairwise reversed tops, separating the pairs one from another and providing them with closure arrangements. The tops may be manufactured by blow molding an extruded hose of thermoplastic material.

Method of manufacturing and handling parts for a packaging container

In a method of sterilizing containers the container is first sealed and then subjected to electron irradiation. The ozone generated in this way is then retained in the closed container for the purpose of sterilizing the same.

Method of sterilizing closed containers

A method of producing a gaseous, hydrogen peroxide-containing sterilization fluid displaying good, uniform sterilization properties is disclosed. The method includes vaporizing liquefied hydrogen peroxide by injecting the liquefied hydrogen peroxide intermittently in finely-divided form into an air current which serves as a vaporization agent, wherein the air current is kept at a constant or insignificantly varying elevated vaporization temperature. An even vaporization temperature of the air current is ensured because the air, prior to vaporization, is heated by heat exchange with a heating element having a large mass or thermal capacity and a large heat exchange surface area which is kept at the desired elevated temperature by regulated energy supplied to the heating element. During breaks in vaporization between the intermittent injection of the liquefied hydrogen peroxide, the heat exchange surface area is heated with the aid of heat stored in the heating element.

Method of producing a gaseous hydrogen peroxide-containing sterilization

An apparatus for treating a package container blank with a fluid is disclosed and includes a rotary portion provided with a plurality of chambers for receiving the blanks and a fixed portion having a stator surface that faces the rotary portion. The fixed portion is provided with an arrangement that opens to the stator surface for supplying fluid so that upon successive rotations of the rotary member, the chambers will successively align with the arrangement for supplying fluid so that fluid is thereby supplied to the chambers.

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Ystad, Sweden

Jan Andersson