Patents by Inventor Volker Dersch

Volker Dersch 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: 11801961
    Abstract: A twin-tube tubular bag machine having two longitudinal sealing elements for forming two parallel film tubes, two parallel transverse sealing jaws for forming sealed tubular bags, and two filling devices for filling the tubular bags. A dosing device is disposed upstream of each of the filling devices for dosing a prespecified filling quantity of the filling material to be filled into the tubular bags. A transfer element having several transfer containers is provided between the filling devices and the dosing device. The filling material is transferred from the dosing device to the transfer containers in an input station. The transfer containers are transported to a pairing of two dispensing stations along a transfer line, the filling material is transferred from the transport containers to the two filling devices, and the transfer containers are transported back to the input station along a return transfer line.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: October 31, 2023
    Assignee: ROVEMA GMBH
    Inventor: Volker Dersch
  • Patent number: 11340600
    Abstract: A method for operating a packaging machine having at least one electric drive motor, the drive motor driving at least one functional unit of the packaging machine in a program-controlled manner when producing packaging using the following steps: (a) loading a parameter set into the control of the packaging machine, the parameter set containing at least one load parameter which limits the torque or the current consumption of the drive motor to a maximum when producing packaging; (b) operating the packaging machine for producing packaging, the maximally occurring actual value of the torque mustered at the drive motor or the current consumed by the drive motor being measured during operation; (c) determining a new load parameter as a function of the maximum actual value; (d) saving the new load parameter in a parameter set allocated to the packaging to be produced.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: May 24, 2022
    Assignee: ROVEMA GMBH
    Inventors: Volker Dersch, Peter Trepke
  • Publication number: 20220106069
    Abstract: A twin-tube tubular bag machine having two longitudinal sealing elements for forming two parallel film tubes, two parallel transverse sealing jaws, which are moveable against each other and which thereby transversely seal the film tube, being provided for each of the two film tubes for forming sealed tubular bags, having a mechanism which has a drive and which moves the transverse sealing jaws, and having two filling devices for filling the tubular bags formed by the film tubes with filling material, and having two separating elements for separating individual filled tubular bags from the two film tubes, a dosing device being disposed upstream of each of the filling devices, said dosing device allowing for the dosing of a prespecified filling quantity of the filling material to be filled into the tubular bags, a transfer element having several transfer containers being provided between the filling devices and the dosing device, the prespecified filling quantity of the filling material being transferred from t
    Type: Application
    Filed: February 5, 2020
    Publication date: April 7, 2022
    Inventor: Volker Dersch
  • Publication number: 20210141370
    Abstract: A method for operating a packaging machine having at least one electric drive motor, the drive motor driving at least one functional unit of the packaging machine in a program-controlled manner when producing packaging using the following steps: (a) loading a parameter set into the control of the packaging machine, the parameter set containing at least one load parameter which limits the torque or the current consumption of the drive motor to a maximum when producing packaging; (b) operating the packaging machine for producing packaging, the maximally occurring actual value of the torque mustered at the drive motor or the current consumed by the drive motor being measured during operation; (c) determining a new load parameter as a function of the maximum actual value; (d) saving the new load parameter in a parameter set allocated to the packaging to be produced.
    Type: Application
    Filed: January 9, 2019
    Publication date: May 13, 2021
    Inventors: Volker Dersch, Peter Trepke
  • Patent number: 10946991
    Abstract: A method for operating a tubular bag machine having a biaxially drivable transverse sealing device for producing tubular bags, a film sheet being closed by transverse bottom and top seams after having formed a film tube, an edge area of the film sheet forming a side fold using a side folder before forming the transverse bottom seam, and transverse top and bottom seams formed by adjacent tubular bags in one work step, said tubular bags formed in the draw direction having an alternating orientation, said side folder interacting with a stationary fold molding on the inner side of the film sheet, the minimal distance of the transverse sealing device to the fold molding alternatingly altered in the draw direction and being larger when producing the two transverse top seams than the minimal distance of the transverse sealing device to the fold molding when producing the transverse bottom seams.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: March 16, 2021
    Assignee: ROVEMA GMBH
    Inventor: Volker Dersch
  • Patent number: 10913555
    Abstract: The invention relates to a dispensing device (40) for being disposed in the forming tube (42) of a tubular bag machine (01) for the portioned dispensation of a flowable, in particular powdery, product (46), having at least one screw conveyor (43) discharging the product (46), said screw conveyor (43) protruding into a screw tube (41) with its longitudinal axis and being able to be rotationally driven by a drive, and having a flow barrier (45) fastened at the lower end of the screw tube (41), the amount of the product (46), which trickles down when the screw conveyor (43) is stopped, being able to be reduced by the flow barrier (45), at least one first receiving contour being provided at the flow barrier (45), and at least one second receiving contour being provided at the lower end of the screw tube (41), and a locking bolt being able to be inserted into and/or pushed through the first receiving contour and second receiving contour when disposing the flow barrier (45) at the lower end of the screw tube (41) i
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: February 9, 2021
    Assignee: ROVEMA GMBH
    Inventors: Volker Dersch, Gunter Brueck
  • Publication number: 20190248520
    Abstract: A method for operating a tubular bag machine having a biaxially drivable transverse sealing device for producing tubular bags, a film sheet being closed by transverse bottom and top seams after having formed a film tube, an edge area of the film sheet forming a side fold using a side folder before forming the transverse bottom seam, and transverse top and bottom seams formed by adjacent tubular bags in one work step, said tubular bags formed in the draw direction having an alternating orientation, said side folder interacting with a stationary fold molding on the inner side of the film sheet, the minimal distance of the transverse sealing device to the fold molding alternatingly altered in the draw direction and being larger when producing the two transverse top seams than the minimal distance of the transverse sealing device to the fold molding when producing the transverse bottom seams.
    Type: Application
    Filed: July 11, 2017
    Publication date: August 15, 2019
    Inventor: Volker Dersch
  • Publication number: 20190135460
    Abstract: The invention relates to a dispensing device (40) for being disposed in the forming tube (42) of a tubular bag machine (01) for the portioned dispensation of a flowable, in particular powdery, product (46), having at least one screw conveyor (43) discharging the product (46), said screw conveyor (43) protruding into a screw tube (41) with its longitudinal axis and being able to be rotationally driven by a drive, and having a flow barrier (45) fastened at the lower end of the screw tube (41), the amount of the product (46), which trickles down when the screw conveyor (43) is stopped, being able to be reduced by the flow barrier (45), at least one first receiving contour being provided at the flow barrier (45), and at least one second receiving contour being provided at the lower end of the screw tube (41), and a locking bolt being able to be inserted into and/or pushed through the first receiving contour and second receiving contour when disposing the flow barrier (45) at the lower end of the screw tube (41) i
    Type: Application
    Filed: March 7, 2017
    Publication date: May 9, 2019
    Inventors: Volker Dersch, Gunter Brueck
  • Patent number: 9340305
    Abstract: A dispensing device for a flowable, in particular powdery product, includes at least one screw conveyor discharging the product, a drive for rotating the screw conveyor about its longitudinal axis, and a forming tube for guiding a tubular film. The screw conveyor protrudes with its longitudinal axis into the forming tube, wherein at least one screw guide, in which the screw conveyor is guided transversally to its longitudinal axis, is formed by the inner wall of at least one cylindrical recess in the forming tube.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: May 17, 2016
    Assignee: ROVEMA GMBH
    Inventors: Roland Kuhn, Volker Dersch, Gunter Brueck
  • Publication number: 20140000758
    Abstract: A dispensing device for a flowable, in particular powdery product, includes at least one screw conveyor discharging the product, a drive for rotating the screw conveyor about its longitudinal axis, and a forming tube for guiding a tubular film. The screw conveyor protrudes with its longitudinal axis into the forming tube, wherein at least one screw guide, in which the screw conveyor is guided transversally to its longitudinal axis, is formed by the inner wall of at least one cylindrical recess in the forming tube.
    Type: Application
    Filed: June 12, 2013
    Publication date: January 2, 2014
    Inventors: Roland Kuhn, Volker Dersch, Gunter Brueck
  • Patent number: 8308881
    Abstract: The invention relates to a method for generating a welding force and/or a welding pressure for a welding jaw, in particular a welding jaw of a cross-sealing station of a vertical tubular bag machine, in which the sealing force or a sealing parameter, which correlates with the sealing force, in particular the sealing pressure or the drive power of the drive, is predetermined by a control unit during the sealing time, such that the sealing force runs along a sealing force curve within the sealing time, such that the sealing force curve has a first relative sealing force maximum with a sealing force and at least one second relative sealing force maximum with a sealing force, such that the sealing force at the first sealing force maximum is higher than the sealing force at the second sealing force maximum.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: November 13, 2012
    Assignee: Rovema GmbH
    Inventors: Volker Dersch, Roland Kuhn, Erhard Lutz
  • Publication number: 20120125521
    Abstract: The invention relates to a method for generating a welding force and/or a welding pressure for a welding jaw, in particular a welding jaw of a cross-sealing station of a vertical tubular bag machine, in which the sealing force or a sealing parameter, which correlates with the sealing force, in particular the sealing pressure or the drive power of the drive, is predetermined by a control unit during the sealing time, such that the sealing force runs along a sealing force curve within the sealing time, such that the sealing force curve has a first relative sealing force maximum with a sealing force and at least one second relative sealing force maximum with a sealing force, such that the sealing force at the first sealing force maximum is higher than the sealing force at the second sealing force maximum.
    Type: Application
    Filed: November 1, 2011
    Publication date: May 24, 2012
    Applicant: Rovema GmbH
    Inventors: Volker Dersch, Roland Kuhn, Erhard Lutz
  • Patent number: 5797241
    Abstract: At a station (1) in a packaging line for folding a flap (2) of a bag (3) along a shaping line (10) of the flap (2) and for compressing the folded flap (2) by a folding element (5) against a resistance member (4), the folding element (5) is driven by a drive mechanism (16) into two directions (8, 9). The two directions are perpendicular to one another. A holding element (11) is provided which can be moved against the shaping line (10) and has a rectilinear shaping edge (12). The rectilinear shaping edge (12) guarantees a straight, position-exact shaping line (10). The folding element (5) causes the folding and compressing, and can be returned into a start position for the next flap (2).
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: August 25, 1998
    Assignee: Rovema Verpackungsmaschinen GmbH
    Inventors: Matthias Schuh, Volker Dersch, Walter Baur