Patents by Inventor Stefan Lambertz

Stefan Lambertz 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: 9932136
    Abstract: The present invention relates to a pouch and a method for making the same. In the inventive method, which is adapted to produce pouches having a limited amount of fusible material, a heat-sealable cord is arranged on a web forming confronting side surface of each pouch. Those confronting side surfaces are fused by heating the heat-sealable cord. The present invention furthermore provides a pouch, in particular containing a brewable or extractable commodity such as tea, with a pocket defined between confronting side surfaces of a web. The pouch of the present invention can have a limited amount of fusible material as the confronting side surfaces are joined by solidified melt of a heat-sealable cord arranged in vicinity of at least one edge of the pouch.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: April 3, 2018
    Assignees: Teepack Spezialmaschinen GmbH & Co. KG, Molins PLC
    Inventors: Stefan Lambertz, Phil Haddow, Peter John Whitlock, Bradley Wiggett, Michael Klein, Hans Knops, Wolfgang Reichel
  • Patent number: 9902516
    Abstract: The present invention relates to a method for making pouches providing a continuous web; folding the web to provide confronting side surfaces joined along a bottom edge; forming a vertical seal between the confronting side surfaces, thereby providing a series of adjacent pockets having opposite side walls with each pocket having an unsealed opening along a top edge; filling the pockets through the unsealed opening with material; sealing the unsealed opening. In the inventive method, which facilitates handling of the continuous web forming the pouches, the web is perforated by a perforation between a leading length piece of the web adapted to form a leading pocket and a trailing length piece of the web adapted to form a trailing pocket, and the distance between a trailing edge of the leading length piece and a leading edge of a trailing length piece is increased for tearing the leading and the trailing lengths pieces apart at the perforation.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: February 27, 2018
    Assignees: Teepack Spezialmaschinen GmBH & Co. KG, Molins PLC
    Inventors: Phil Haddow, Peter Whitlock, Bradley Wiggett, Stefan Lambertz
  • Publication number: 20160221702
    Abstract: The present invention relates to a method for making pouches providing a continuous web; folding the web to provide confronting side surfaces joined along a bottom edge; forming a vertical seal between the confronting side surfaces, thereby providing a series of adjacent pockets having opposite side walls with each pocket having an unsealed opening along a top edge; filling the pockets through the unsealed opening with material; sealing the unsealed opening. In the inventive method, which facilitates handling of the continuous web forming the pouches, the web is perforated by a perforation between a leading length piece of the web adapted to form a leading pocket and a trailing length piece of the web adapted to form a trailing pocket, and the distance between a trailing edge of the leading length piece and a leading edge of a trailing length piece is increased for tearing the leading and the trailing lengths pieces apart at the perforation.
    Type: Application
    Filed: January 29, 2015
    Publication date: August 4, 2016
    Inventors: Phil Haddow, Peter Whitlock, Bradley Wiggett, Stefan Lambertz
  • Publication number: 20150037467
    Abstract: The present invention relates to a pouch and a method for making the same. In the inventive method, which is adapted to produce pouches having a limited amount of fusible material, a heat-sealable cord is arranged on a web forming confronting side surface of each pouch. Those confronting side surfaces are fused by heating the heat-sealable cord. The present invention furthermore provides a pouch, in particular containing a brewable or extractable commodity such as tea, with a pocket defined between confronting side surfaces of a web. The pouch of the present invention can have a limited amount of fusible material as the confronting side surfaces are joined by solidified melt of a heat-sealable cord arranged in vicinity of at least one edge of the pouch.
    Type: Application
    Filed: September 28, 2012
    Publication date: February 5, 2015
    Inventors: Stefan Lambertz, Phil Haddow, Peter John Whitlock, Bradley Wiggett, Michael Klein, Hans Knops, Wolfgang Richael
  • Patent number: 7401450
    Abstract: This invention concerns an infusion bag, especially for tea, which has a top part with folded down corners and a middle part folded over it, to which a string with two free ends is attached that goes from one side of the top part through a hole in the folded down parts forming a loop on the other side of the top part and comes back, whereby the two free ends are drawn up through the loop laid over the top edge of the infusion bag and pulled to form a knot. The solution in the invention is characterized by the fact that two holes are made in the top part at a lateral distance next to one another, on the left and right of the longitudinal axis of the bag; each hole goes through a folded down corner and the middle of the top part; by the fact that the string forms a loop and one end goes through one hole and the other end through the second hole; by the fact that the loop is laid over the top edge of the infusion bag, and both ends of the string go up through the loop to form a double knot.
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: July 22, 2008
    Assignee: Teepack Spezialmaschinen GmbH & Co.KG
    Inventors: Wilhelm Lohrey, Stefan Lambertz, Manfred Hauers, Dieter Vits
  • Patent number: 7264282
    Abstract: The invention relates to a method and a device for knotting the end of a thread to a flat object containing two spaced holes for the knot. The method provides the thread located in front of the holes is pulled to the other side of the object while forming loops, and in that the loop is rotated by at least 270°. Subsequently the end of the thread is pulled through this loop and the knot that is formed is tightened. The device provides three tools, specifically two bars and a gripper.
    Type: Grant
    Filed: May 5, 2004
    Date of Patent: September 4, 2007
    Assignee: Teepack Spezialmaschinen GmbH & Co. KG
    Inventors: Stefan Lambertz, Manfred Hauers, Dieter Vits
  • Publication number: 20040222634
    Abstract: The invention relates to a method and a device for knotting the end of a thread to a flat object containing two spaced holes for the knot. The method provides the thread located in front of the holes is pulled to the other side of the object while forming loops, and in that the loop is rotated by at least 270°. Subsequently the end of the thread is pulled through this loop and the knot that is formed is tightened. The device provides three tools, specifically two bars and a gripper.
    Type: Application
    Filed: May 5, 2004
    Publication date: November 11, 2004
    Inventors: Stefan Lambertz, Manfred Hauers, Dieter Vits
  • Patent number: 6746699
    Abstract: This invention concerns an infusion bag, especially for tea, which has a top part with folded down corners and a middle part folded over it, to which a string with two free ends is attached that goes from one side of the top part through a hole in the folded down parts forming a loop on the other side of the top part and comes back, whereby the two free ends are drawn up through the loop laid over the top edge of the infusion bag and pulled to form a knot. The solution in the invention is characterized by the fact that two holes are made in the top part at a lateral distance next to one another, on the left and right of the longitudinal axis of the bag; each hole goes through a folded down corner and the middle of the top part; by the fact that the string forms a loop and one end goes through one hole and the other end through the second hole; by the fact that the loop is laid over the top edge of the infusion bag, and both ends of the string go up through the loop to form a double knot.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: June 8, 2004
    Assignee: Teepack Spezialmaschinen GmbH & Co. KG
    Inventors: Wilhelm Lohrey, Stefan Lambertz, Manfred Hauers, Dieter Vits
  • Patent number: 6725628
    Abstract: This invention relates to a process for the continuous production of beverage filter bags, especially tea bags with a hanging strip made from a carrier sheet material and with at least one pocket which consists of a filter material and is closed on all sides, contains at least one portion of a beverage substance, and is connected to the hanging strip; whereby individual beverage-substance portions are deposited in a row on a continuous web of filter paper, a sleeve is formed, at least one string of consecutive, contiguous pockets, each containing one portion of the substance, is produced by individually sealing them off with a transverse seam, said transverse seam including both the trailing seam of one pocket and the leading seam of the following pocket, with perforations between the two seams along which neighboring pockets can be separated in the course of the process; the individual pocket is separated from the string of pockets; the pocket separated from the string of pockets is connected to a hanging-st
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: April 27, 2004
    Assignee: Teepack Spezialmaschinen GmbH & Co. KG
    Inventors: Wilhelm Lohrey, Stefan Lambertz, Wolfgang Groth, Rolf Maier
  • Patent number: 6675553
    Abstract: This invention concerns a method and a device for stacking and packing groups of infusion bags, especially for making tea, whereby in continuous production infusion bags arranged one after another in a series in a strand are separated, their speed of movement is reduced and they are put in a position suitable for making a stack, whereby the infusion bags are arranged one after another in such a way that they at least partly overlap in their subsequent direction of movement.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: January 13, 2004
    Assignee: Teepack Spezialmaschinen GmbH & Co. KG
    Inventors: Wilhelm Lohrey, Stefan Lambertz, Wolfgang Groth
  • Publication number: 20030203074
    Abstract: This invention concerns an infusion bag, especially for tea, which has a top part with folded down corners and a middle part folded over it, to which a string with two free ends is attached that goes from one side of the top part through a hole in the folded down parts forming a loop on the other side of the top part and comes back, whereby the two free ends are drawn up through the loop laid over the top edge of the infusion bag and pulled to form a knot. The solution in the invention is characterized by the fact that two holes are made in the top part at a lateral distance next to one another, on the left and right of the longitudinal axis of the bag; each hole goes through a folded down corner and the middle of the top part; by the fact that the string forms a loop and one end goes through one hole and the other end through the second hole; by the fact that the loop is laid over the top edge of the infusion bag, and both ends of the string go up through the loop to form a double knot.
    Type: Application
    Filed: May 9, 2003
    Publication date: October 30, 2003
    Inventors: Wilhelm Lohrey, Stefan Lambertz, Manfred Hauers, Dieter Vits
  • Publication number: 20030192289
    Abstract: This invention concerns a method and a device for stacking and packing groups of infusion bags, especially for making tea, whereby in continuous production infusion bags arranged one after another in a series in a strand are separated, their speed of movement is reduced and they are put in a position suitable for making a stack, whereby the infusion bags are arranged one after another in such a way that they at least partly overlap in their subsequent direction of movement
    Type: Application
    Filed: April 30, 2003
    Publication date: October 16, 2003
    Inventors: Wilhelm Lohrey, Stefan Lambertz, Wolfgang Groth
  • Patent number: 6505731
    Abstract: This invention concerns a device for transporting a strand of carrier material which is connected, at least on one side, to individual chambers made of filter paper material, spaced apart, following one after another, closed on all sides, containing a quantity of substance and composed of a strip of carrier material, with at least two independently driven belts, one segment of which runs at least partly parallel to the strand of carrier material and having cams spaced apart on the side facing the strand of carrier material, whereby they grasp the strand of carrier material between the chambers and/or in the area where one chamber is connected to the strand of carrier material, working along with a support, and transport it with the movement of the belts.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: January 14, 2003
    Assignee: Teepack Spezialmaschinen GmbH & Co. KG
    Inventor: Stefan Lambertz
  • Publication number: 20020134053
    Abstract: This invention concerns a method and a device for stacking and packing groups of infusion bags (1), especially for making tea, whereby in continuous production infusion bags (1) arranged one after another in a series in a strand (2) are separated, their speed of movement is reduced and they are put in a position suitable for making a stack, whereby the infusion bags (1) are arranged one after another in such a way that they at least partly overlap in their subsequent direction of movement.
    Type: Application
    Filed: September 26, 2001
    Publication date: September 26, 2002
    Inventors: Wilhelm Lohrey, Stefan Lambertz, Wolfgang Groth
  • Publication number: 20020108837
    Abstract: This invention concerns a device for transporting a strand (12) of carrier material which is connected, at least on one side, to individual chambers (6) made of filter paper material, spaced apart, following one after another, closed on all sides, containing a quantity of substance and composed of a strip of carrier material, with at least two independently driven belts (2, 3), one segment of which runs at least partly parallel to the strand (12) of carrier material and having cams (4, 5) spaced apart on the side facing the strand (12) of carrier material, whereby they grasp the strand (12) of carrier material between the chambers (6) and/or in the area where one chamber (6) is connected to the strand (12) of carrier material, working along with a support, and transport it with the movement of the belts.
    Type: Application
    Filed: May 4, 2001
    Publication date: August 15, 2002
    Inventor: Stefan Lambertz
  • Publication number: 20020005027
    Abstract: This invention relates to a process for the continuous production of beverage filter bags, especially tea bags with a hanging strip made from a carrier sheet material and with at least one pocket which consists of a filter material and is closed on all sides, contains at least one portion of a beverage substance, and is connected to the hanging strip; whereby individual beverage-substance portions are deposited in a row on a continuous web of filter paper, a sleeve is formed, at least one string of consecutive, contiguous pockets, each containing one portion of the substance, is produced by individually sealing them off with a transverse seam, said transverse seam including both the trailing seam of one pocket and the leading seam of the following pocket, with perforations between the two seams along which neighboring pockets can be separated in the course of the process; the individual pocket is separated from the string of pockets; the pocket separated from the string of pockets is connected to a hanging-st
    Type: Application
    Filed: May 4, 2001
    Publication date: January 17, 2002
    Inventors: Wilhelm Lohrey, Stefan Lambertz, Wolfgang Groth, Rolf Maier
  • Publication number: 20020005101
    Abstract: This invention relates to a system for the continuous separation of strings of material, subdivided into individual string subsections or pockets by transverse perforations, especially in the context of the production of tea filter bags, incorporating a continuously rotating wheel (1) and, beside the wheel (1), grippers (3) which are tiltable relative to the wheel (1) and serve to grasp the longitudinal sides of a string subsection to be separated from the string at a predefined point near the perforation, said string subsection permitting separation by means of the relative movement between the grippers (3) and the wheel (1).
    Type: Application
    Filed: May 4, 2001
    Publication date: January 17, 2002
    Inventors: Wilhelm Lohrey, Stefan Lambertz, Wolfgang Groth, Friedhelm Funda, Wolfgang Reichel, Michael Klein
  • Publication number: 20010053400
    Abstract: This invention concerns an infusion bag, especially for tea, which has a top part with folded down corners and a middle part folded over it, to which a string with two free ends is attached that goes from one side of the top part through a hole in the folded down parts forming a loop on the other side of the top part and comes back, whereby the two free ends are drawn up through the loop laid over the top edge of the infusion bag and pulled to form a knot. The solution in the invention is characterized by the fact that two holes are made in the top part at a lateral distance next to one another, on the left and right of the longitudinal axis of the bag; each hole goes through a folded down corner and the middle of the top part; by the fact that the string forms a loop and one end goes through one hole and the other end through the second hole; by the fact that the loop is laid over the top edge of the infusion bag, and both ends of the string go up through the loop to form a double knot.
    Type: Application
    Filed: June 5, 2001
    Publication date: December 20, 2001
    Inventors: Wilhelm Lohrey, Stefan Lambertz, Manfred Hauers, Dieter Vits