Patents by Inventor Stefan Landolt

Stefan Landolt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240109678
    Abstract: A packaging apparatus (1) for heat sealing packages (P) comprising a vacuum chamber (4) having an elongated opening (5) extending along or parallel to a longitudinal axis (L) of the vacuum chamber (4) and a conveyor (8) configured for receiving semi-sealed packages (P) and for moving the semi-sealed packages (P) relative to the vacuum chamber (4) along a main movement direction (M) such that each semi-sealed package (P) positioned on the conveyor (8) may have, during the relative movement of the semi-sealed package (P) with respect to the vacuum chamber (4), a terminal portion (TP) passing through the elongated opening (5) with its opening relatively moving within the vacuum chamber (4), while the main portion (MP) relatively moves outside the vacuum chamber (4). The packaging apparatus (1) further comprises evacuation means (9) fluidly communicating with the vacuum chamber (4) for evacuating gas present in the semi-sealed packages (P) and forming evacuated semi-sealed packages (P).
    Type: Application
    Filed: October 14, 2020
    Publication date: April 4, 2024
    Inventors: Stefan Landolt, Peter Schnurrenberger, Peter Müller
  • Publication number: 20230219707
    Abstract: A heat sealer module for a heat-sealing station of a packaging apparatus has a sealing belt for contacting a terminal portion of semi-sealed packages and for guiding the terminal portion of the semi-sealed packages along a main movement direction; the heat sealer module also has a first driving belt and a second driving belt to assist in accompanying the packages in proper position for sealing. A heat sealer having opposed heat sealer modules. A packaging apparatus for heat sealing packages having a vacuum chamber with an elongated opening and a conveyor for receiving semi-sealed packages and for moving the semi-sealed packages relative to the vacuum chamber is disclosed. The packaging apparatus includes evacuation means for evacuating gas present in the semi-sealed packages and forming evacuated semi-sealed packages. The packaging apparatus includes the heat sealer for heat sealing the terminal portion of each evacuated semi-sealed package thereby forming heat sealed packages.
    Type: Application
    Filed: January 5, 2023
    Publication date: July 13, 2023
    Inventors: Stefan Landolt, Peter Schnurrenberger, Peter Müller
  • Patent number: 11661224
    Abstract: An apparatus for heat shrinking packages includes a mover having an active surface configured for receiving one or more packages and for displacing the one or more packages along a predetermined operating path, a heating fluid circuit configured to circulate a heating fluid, a control unit operative on the heating fluid circuit, the control unit being configured to control circulation of the heating fluid in the heating fluid circuit, a chamber having an opening and being configured for receiving the one or more packages positioned on the active surface and for heat shrinking the one or more packages based on circulation of the heating fluid in the heating fluid circuit, and means for forming a liquid curtain arranged at the opening and configured to define a liquid curtain along the opening, the liquid curtain separating an inner volume of the chamber from an ambient atmosphere external to the chamber.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: May 30, 2023
    Assignee: Cryovac, LLC
    Inventors: Peter Thürig, Stefan Landolt, Gregory Edward McDonald
  • Publication number: 20220040955
    Abstract: A composite belt assembly for a band sealer is provided. The composite belt assembly comprises a belt comprising a main belt; a first layer; and a second layer; wherein the first layer is arranged in contact with the main belt, preferably between the second layer and the main belt; and the first layer includes an attachment portion, configured to contact the main belt and the second layer. There is also provided a band sealer comprising a composite belt assembly and a packaging line comprising the band sealer. There is further provided a method for heat sealing a package, comprising providing a composite belt assembly, gripping a bag neck of the package using the composite belt assembly, guiding the bag neck of the package along a movement plane using the composite belt assembly providing a sealing element configured for heat sealing a plastic material of the bag neck, and applying heat to at least part of the bag neck through the first layer of the composite belt assembly using the sealing element.
    Type: Application
    Filed: June 12, 2019
    Publication date: February 10, 2022
    Inventors: Giulio Benedetti, Stefan Landolt, Peter Thürig, Peter Schnurrenberger, Peter Mueller
  • Patent number: 10752394
    Abstract: A packaging apparatus and a method of operating the apparatus are provided.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: August 25, 2020
    Assignee: Cryovac, LLC
    Inventors: Stefan Landolt, Josef Schumacher
  • Publication number: 20200108964
    Abstract: An apparatus for heat shrinking packages includes a mover having an active surface configured for receiving one or more packages and for displacing the one or more packages along a predetermined operating path, a heating fluid circuit configured to circulate a heating fluid, a control unit operative on the heating fluid circuit, the control unit being configured to control circulation of the heating fluid in the heating fluid circuit, a chamber having an opening and being configured for receiving the one or more packages positioned on the active surface and for heat shrinking the one or more packages based on circulation of the heating fluid in the heating fluid circuit, and means for forming a liquid curtain arranged at the opening and configured to define a liquid curtain along the opening, the liquid curtain separating an inner volume of the chamber from an ambient atmosphere external to the chamber.
    Type: Application
    Filed: December 21, 2017
    Publication date: April 9, 2020
    Inventors: Peter Thürig, Stefan Landolt, Gregory Edward McDonald
  • Patent number: 10597183
    Abstract: An apparatus for heat shrinking a package, comprising: a chamber configured such that a package on a surface of the apparatus may be heat shrunk via a heating fluid in the chamber; and a preheat container configured to supply a preheated liquid to a heat tank from which the heating fluid is supplied to the chamber; wherein the preheat container is above the surface such that liquid in the preheat container can be preheated by heat from the chamber.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: March 24, 2020
    Assignee: Cryovac, LLC
    Inventors: Stefan Landolt, Andre Steiner
  • Publication number: 20160251102
    Abstract: A packaging apparatus and a method of operating the apparatus are provided.
    Type: Application
    Filed: July 23, 2014
    Publication date: September 1, 2016
    Inventors: Stefan LANDOLT, Josef SCHUMACHER
  • Publication number: 20150040520
    Abstract: An apparatus for heat shrinking a package, comprising: a chamber configured such that a package on a surface or the apparatus may be heat shrunk via a heating fluid in the chamber; and a preheat container configured to supply a preheated liquid to a heat tank from which the heating fluid is supplied to the chamber; wherein the preheat container is above the surface such that liquid in the preheat container can be preheated by heat from the chamber.
    Type: Application
    Filed: February 6, 2013
    Publication date: February 12, 2015
    Inventors: Stefan Landolt, Andre Steiner