Packaging machine with pressure control device and method

US11111040B2 · kind B2 · utility

Assignee

• Multivac Sepp Haggenmüller Se & Co. KG · DE

Inventors

• Tobias Enderle · Thal, DE
• Thomas Holderied · Dietmannsried, DE
• Herbert Kirmse · Ottobeuren, DE
• Daniel HONOLD · Marktoberdorf, DE
• Michael Rädler · Klaus, AT
• Florian Felch · Durach, DE
• Peter Schrade · Bad Urach, DE

Key dates

• Filing date: Jan 7, 2019
• Grant date: Sep 7, 2021
• Expiry date: Jul 4, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G05D16/204
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A packaging machine with an atmosphere modifying station in which an atmosphere within a packaging to be produced can be modified by evacuating air and/or introducing a gas. The packaging machine has a pressure control device that may control an evacuation pressure and/or a gassing pressure. The pressure control device may comprise a first controllable 2/2-way valve and a second controllable 2/2-way valve, both which are configured to influence the evacuation pressure and/or the gassing pressure by setting a volume flow. The first and second 2/2-way valves are connected in parallel with one another and are controllable independently of one another. In one embodiment, the first and second 2/2-way valves are preferably electrically controllable. A method of modifying an atmosphere within a package using a packaging machine and pressure control device is also provided.