Patents by Inventor Juergen Liebhardt

Juergen Liebhardt 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).

  • Patent number: 9422074
    Abstract: The sealing roll includes a stationary internal shaft and an inductively heatable roll jacket supported with freedom to rotate around the shaft. A plurality of induction coils is wound around the shaft over ferrites, which are open to the outside. Cables for the induction coils are laid through a cable conduit in the shaft for connection to an external induction generator. A water cooling channel for indirectly cooling the induction coils is also arranged in the shaft. A cavity is formed in at least an axial subsection of the sealing roll between the roll jacket and the shaft, and at least part of a temperature detection device is arranged in the cavity or adjacent to the cavity so that an IR temperature sensor receives radiation emitted by the roll jacket and thus detects a temperature of the roll jacket.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: August 23, 2016
    Assignee: Uhlmann Pac-Systeme GmbH & Co. KG
    Inventors: Detlev Gertitschke, Robert Lehmann, Juergen Liebhardt
  • Patent number: 9233523
    Abstract: The device for sealing together a formed bottom sheet and a lidding sheet between a feed roll and a sealing roll has a heating unit for preheating the lidding sheet before the sealing operation. The heating unit is a contactless induction heating device which has coils and magnetic-field influencing elements which are arranged transversely to the travel direction of the lidding sheet and opposite at least one of the coils. The distance between each of the magnetic-field influencing elements and the at least one coil is adjusted by a control unit on the basis of measurement values of temperature sensors arranged downstream of the magnetic-field influencing elements in order to regulate the temperature profile of the lidding sheet.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: January 12, 2016
    Assignee: Uhlmann Pac-Systeme GMBH & Co. KG
    Inventors: Detlev Gertitschke, Juergen Liebhardt, Robert Lehmann
  • Publication number: 20130306625
    Abstract: The sealing roll includes a stationary internal shaft and an inductively heatable roll jacket supported with freedom to rotate around the shaft. A plurality of induction coils is wound around the shaft over ferrites, which are open to the outside. Cables for the induction coils are laid through a cable conduit in the shaft for connection to an external induction generator. A water cooling channel for indirectly cooling the induction coils is also arranged in the shaft. A cavity is formed in at least an axial subsection of the sealing roll between the roll jacket and the shaft, and at least part of a temperature detection device is arranged in the cavity or adjacent to the cavity so that an IR temperature sensor receives radiation emitted by the roll jacket and thus detects a temperature of the roll jacket.
    Type: Application
    Filed: May 16, 2013
    Publication date: November 21, 2013
    Applicant: Uhlmann Pac-Systeme GmbH & Co. KG
    Inventors: Detlev GERTITSCHKE, Robert LEHMANN, Juergen LIEBHARDT
  • Publication number: 20130299092
    Abstract: The device for sealing together a formed bottom sheet and a lidding sheet between a feed roll and a sealing roll has a heating unit for preheating the lidding sheet before the sealing operation. The heating unit is a contactless induction heating device which has coils and magnetic-field influencing elements which are arranged transversely to the travel direction of the lidding sheet and opposite at least one of the coils. The distance between each of the magnetic-field influencing elements and the at least one coil is adjusted by a control unit on the basis of measurement values of temperature sensors arranged downstream of the magnetic-field influencing elements in order to regulate the temperature profile of the lidding sheet.
    Type: Application
    Filed: May 1, 2013
    Publication date: November 14, 2013
    Applicant: UHLMANN PAC-SYSTEME GMBH & CO. KG
    Inventors: Detlev GERTITSCHKE, Juergen LIEBHARDT, Robert LEHMANN
  • Patent number: 8534453
    Abstract: The device for transporting upright containers in a straight line includes a rake conveyor comprising multiple receiving sections for the containers and an opposing support element for the containers carried in the receiving sections. The rake conveyor is connected to two drives by at least two pivot systems, each with two arms, in such a way that the rake conveyor can be pushed back and forth both in the transport direction of the containers and also in the direction perpendicular to the transport direction of the containers.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: September 17, 2013
    Assignee: Uhlmann Pac-Systeme GmbH & Co. KG
    Inventors: Juergen Liebhardt, Michael Kronawitter, Ralf Heim
  • Publication number: 20120222941
    Abstract: The device for transporting upright containers in a straight line includes a rake conveyor comprising multiple receiving sections for the containers and an opposing support element for the containers carried in the receiving sections. The rake conveyor is connected to two drives by at least two pivot systems, each with two arms, in such a way that the rake conveyor can be pushed back and forth both in the transport direction of the containers and also in the direction perpendicular to the transport direction of the containers.
    Type: Application
    Filed: February 9, 2012
    Publication date: September 6, 2012
    Applicant: UHLMANN PAC-SYSTEME GMBH & CO. KG
    Inventors: Juergen Liebhardt, Michael Kronawitter, Ralf Heim
  • Patent number: 7946097
    Abstract: The feeder for the controlled transfer of product items into the pockets of a web of sheeting has a base unit, a supply container for holding the product items, and a product conveyor for receiving the product items from the supply container. Further, the feeder has an exchangeable format unit including a sorting plate for receiving the product items from the product conveyor, a filling unit with a number of vertically extending filling tubes for receiving the product items from the sorting plate and with a blocking slide unit with a blocking slide plate for temporarily blocking the guiding channels of the filling tubes. The format unit further has a filling shoe for receiving the product items from the filling unit and for guiding them to the pockets of the web of sheeting. A plurality of drives and the corresponding electrical control components for moving the format unit, the sorting plate, the blocking slide plate and the filling shoe are arranged in the base unit.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: May 24, 2011
    Assignee: Uhlmann Pac-Systeme GmbH & Co. KG
    Inventors: Kurt Gnann, Juergen Liebhardt, Martin Zuleger
  • Publication number: 20090265034
    Abstract: The feeder for the controlled transfer of product items into the pockets of a web of sheeting has a base unit, a supply container for holding the product items, and a product conveyor for receiving the product items from the supply container. Further, the feeder has an exchangeable format unit including a sorting plate for receiving the product items from the product conveyor, a filling unit with a number of vertically extending filling tubes for receiving the product items from the sorting plate and with a blocking slide unit with a blocking slide plate for temporarily blocking the guiding channels of the filling tubes. The format unit further has a filling shoe for receiving the product items from the filling unit and for guiding them to the pockets of the web of sheeting. A plurality of drives and the corresponding electrical control components for moving the format unit, the sorting plate, the blocking slide plate and the filling shoe are arranged in the base unit.
    Type: Application
    Filed: April 15, 2009
    Publication date: October 22, 2009
    Inventors: Kurt Gnann, Juergen Liebhardt, Martin Zuleger
  • Publication number: 20090260321
    Abstract: The feeder for tablets, capsules or dragées has a stationary base unit and an exchangeable format unit with a sorting plate for evenly distributing the products and with a filling unit including a number of vertically extending filling tubes having a guiding channel for receiving the tablets, capsules or dragées from the sorting plate, and a blocking slide unit for temporarily blocking the guiding channels of the filling tubes. The base unit has a first hanger device for the sorting plate, a second hanger device for the filling unit, and at least one adjusting device for adjusting the first hanger device relative to the second hanger device.
    Type: Application
    Filed: April 15, 2009
    Publication date: October 22, 2009
    Inventors: Erich JANS, Kurt GNANN, Martin ZULEGER, Markus REGNER, Wolfgang RODI, Juergen LIEBHARDT, Christian HESS