Patents by Inventor Juergen F. Trost

Juergen F. Trost 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: 9610703
    Abstract: A method for making a piece of figured veneer comprises softening lignin in a sheet of veneer, and advancing the sheet of veneer between a first roller having a semi-flexible outer surface and a second roller. Apparatus for making a piece of figured veneer comprises a device for softening lignin in a sheet of veneer, and first and second rollers between which the sheet of veneer is pressed. The first roller has a semi-flexible outer surface.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: April 4, 2017
    Assignee: DANZER GMBH
    Inventors: Juergen F. Trost, Glenn L. Wagoner
  • Publication number: 20150231794
    Abstract: A method and apparatus for trimming the edges of sheets including providing a conveyor, a first saw and a second saw, first conveying the sheets on the conveyor past the first saw, trimming a first side edge of the sheets, and then conveying the sheets on the conveyor past the second saw and trimming a second side edge of the sheets.
    Type: Application
    Filed: May 5, 2015
    Publication date: August 20, 2015
    Inventors: Wolfgang Lacroix, Daniel J. Ratstatter, Juergen F. Trost
  • Patent number: 9050735
    Abstract: A method and apparatus for trimming the edges of sheets including providing a conveyor, a first saw and a second saw, first conveying the sheets on the conveyor past the first saw, trimming a first side edge of the sheets, and then conveying the sheets on the conveyor past the second saw and trimming a second side edge of the sheets.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: June 9, 2015
    Assignee: Danzer Services Schweiz AG
    Inventors: Wolfgang LaCroix, Daniel J. Ràstatter, Juergen F. Trost
  • Publication number: 20150027586
    Abstract: A method for making a piece of figured veneer comprises softening lignin in a sheet of veneer, and advancing the sheet of veneer between a first roller having a semi-flexible outer surface and a second roller. Apparatus for making a piece of figured veneer comprises a device for softening lignin in a sheet of veneer, and first and second rollers between which the sheet of veneer is pressed. The first roller has a semi-flexible outer surface.
    Type: Application
    Filed: October 6, 2014
    Publication date: January 29, 2015
    Inventors: Juergen F. Trost, Glenn L. Wagoner
  • Patent number: 8852483
    Abstract: A method for making a piece of figured veneer comprises softening lignin in a sheet of veneer, and advancing the sheet of veneer between a first roller having a semi-flexible outer surface and a second roller. Apparatus for making a piece of figured veneer comprises a device for softening lignin in a sheet of veneer, and first and second rollers between which the sheet of veneer is pressed. The first roller has a semi-flexible outer surface.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: October 7, 2014
    Assignee: Padana AG
    Inventors: Juergen F. Trost, Glenn Leslie Wagoner
  • Patent number: 8562328
    Abstract: A method and apparatus for making a piece of figured veneer comprise means for, and the steps of, softening lignin in a sheet of veneer, pressing the sheet of veneer between complementary corrugating press rollers having a pitch and a depth to press the sheet of veneer into a wavy or corrugated configuration, and surfacing the pressed sheet of veneer to remove crests of the corrugations, making the piece of figured veneer. Another method and apparatus for making a piece of figured veneer, comprise means for, and the steps of, softening lignin in a sheet of veneer, placing the sheet of veneer onto a wavy or corrugated surface of a plate, pressing the sheet of veneer using a press roller so that the roller presses the sheet of veneer against the surface to achieve a wavy or corrugated veneer, and surfacing the pressed sheet of veneer to remove peaks of the corrugations, making the piece of figured veneer.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: October 22, 2013
    Assignee: Padana AG
    Inventor: Juergen F. Trost
  • Publication number: 20130001827
    Abstract: A method for making a piece of figured veneer comprises softening lignin in a sheet of veneer, and advancing the sheet of veneer between a first roller having a semi-flexible outer surface and a second roller. Apparatus for making a piece of figured veneer comprises a device for softening lignin in a sheet of veneer, and first and second rollers between which the sheet of veneer is pressed. The first roller has a semi-flexible outer surface.
    Type: Application
    Filed: July 12, 2012
    Publication date: January 3, 2013
    Inventors: Juergen F. Trost, Glenn Leslie Wagoner
  • Publication number: 20110180183
    Abstract: A veneer slicer includes a knife, a flitch table for supporting a flitch for movement relative to the knife to slice veneer from the flitch, a flitch table support for movably supporting the flitch table, and at least one of a fluid motor and an electric motor coupled between the flitch table and the flitch table support for moving the flitch table relative to the knife more slowly during one part of the cutting stroke and more rapidly during another part of the cutting stroke.
    Type: Application
    Filed: April 5, 2011
    Publication date: July 28, 2011
    Inventors: Jürgen F. Trost, Wolfgang Lacroix
  • Patent number: 7918253
    Abstract: A method and apparatus for converting a flitch into sheets of veneer. The method and apparatus include providing a drive mechanism which causes relative motion of a knife in contact with the flitch. The relative motion is relatively slower during one part of the cutting stroke and is relatively faster during another part of the cutting stroke.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: April 5, 2011
    Assignee: Padana AG
    Inventors: Wolfgang Lacroix, Juergen F. Trost
  • Publication number: 20110041668
    Abstract: An apparatus for surfacing a flitch by cutting material from its radially outer surface to prepare the flitch for veneer slicing or other uses. The apparatus comprises a cutterhead rotatable about a cutterhead axis. The apparatus further comprises a carriage comprising a ring that rotates about a carriage axis and a pivot arm that carries the cutterhead and is coupled to the rotatable ring for pivoting movement about a pivot arm axis. The apparatus further comprises a flitch contour accommodation device coupled to the pivot arm and to the cutterhead to permit rotation of the cutterhead about a device axis that is generally transverse to the cutterhead axis.
    Type: Application
    Filed: November 2, 2010
    Publication date: February 24, 2011
    Applicant: PADANA AG
    Inventors: Daniel J. Rastatter, Jürgen F. Trost
  • Patent number: 7871070
    Abstract: A conveyor conveys sheets and deposits the sheets at a location to be stacked. The conveyor includes a sensor for determining the presence of a sheet before the sheet arrives at the location. A controller is coupled to the sensor and responsive to sensor inputs for controlling a movable support for projecting into a projected orientation to receive the sheets as the sheets exit the conveyor. The movable support moves to a retracted orientation to assist a stack to be withdrawn therefrom.
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: January 18, 2011
    Assignee: Padana AG
    Inventors: Arlington D. Ruff, Clifford A. Ruff, Jürgen F. Trost
  • Patent number: 7841373
    Abstract: An apparatus for surfacing a flitch by cutting material from its radially outer surface to prepare the flitch for veneer slicing or other uses. The apparatus comprises a cutterhead rotatable about a cutterhead axis. The apparatus further comprises a carriage comprising a ring that rotates about a carriage axis and a pivot arm that carries the cutterhead and is coupled to the rotatable ring for pivoting movement about a pivot arm axis. The apparatus further comprises a flitch contour accommodation device coupled to the pivot arm and to the cutterhead to permit rotation of the cutterhead about a device axis that is generally transverse to the cutterhead axis.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: November 30, 2010
    Assignee: Padana AG
    Inventors: Daniel J. Rastatter, Juergen F. Trost
  • Publication number: 20100244319
    Abstract: A method and apparatus for making a piece of figured veneer comprise means for, and the steps of, softening lignin in a sheet of veneer, pressing the sheet of veneer between complementary corrugating press rollers having a pitch and a depth to press the sheet of veneer into a wavy or corrugated configuration, and surfacing the pressed sheet of veneer to remove crests of the corrugations, making the piece of figured veneer. Another method and apparatus for making a piece of figured veneer, comprise means for, and the steps of, softening lignin in a sheet of veneer, placing the sheet of veneer onto a wavy or corrugated surface of a plate, pressing the sheet of veneer using a press roller so that the roller presses the sheet of veneer against the surface to achieve a wavy or corrugated veneer, and surfacing the pressed sheet of veneer to remove peaks of the corrugations, making the piece of figured veneer.
    Type: Application
    Filed: November 10, 2008
    Publication date: September 30, 2010
    Applicant: Padana AG
    Inventor: Juergen F. Trost
  • Patent number: 7673743
    Abstract: A conveyor conveys sheets and deposits the sheets at a location to be stacked. The conveyor includes a sensor for determining the presence of a sheet before the sheet arrives at the location. A controller is coupled to the sensor and responsive to sensor inputs for controlling a movable support for projecting into a projected orientation to receive the sheets as the sheets exit the conveyor. The movable support moves to a retracted orientation to assist a stack to be withdrawn therefrom.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: March 9, 2010
    Assignee: Padana AG
    Inventors: Arlington D. Ruff, Clifford A. Ruff, Jürgen F. Trost
  • Publication number: 20090173411
    Abstract: Apparatus for shaping a flitch includes an upper shaping head assembly for shaping an upper surface of the flitch, a lower shaping head assembly for shaping a lower surface of the flitch, and a groover assembly for placing at least one groove in a surface of the flitch. The apparatus further includes at least one centering arm and chain runner assembly. The at least one centering arm and chain runner assembly includes a chain runner assembly for conveying the flitch toward a transverse center of the centering arm and chain runner assembly, and a centering arm assembly for positioning the flitch. A flitch transport conveyor includes a conveyor frame, a first dogger arm assembly for engaging a first end of the flitch, and a second dogger arm assembly for engaging a second end of the flitch.
    Type: Application
    Filed: November 7, 2006
    Publication date: July 9, 2009
    Inventors: Jürgen F. Trost, Daniel J. Rastatter, Benjamin D. Smith, Harold Wayne Fleming, A. Scott Mcinnis, David E. Seffens, Gregory G. Chandler, Carl D. Shore
  • Patent number: 7458404
    Abstract: A method and apparatus for converting a flitch into sheets of veneer. The method and apparatus include providing a drive mechanism which causes relative motion of a knife in contact with the flitch. The relative motion is relatively slower during one part of the cutting stroke and is relatively faster during another part of the cutting stroke.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: December 2, 2008
    Assignee: Danzer North America, Inc.
    Inventors: Jürgen F. Trost, Wolfgang Lacroix
  • Patent number: 7426947
    Abstract: A method and apparatus for converting a flitch into sheets of veneer. The method and apparatus include providing a drive mechanism which causes relative motion of a knife in contact with the flitch. The relative motion is relatively slower during one part of the cutting stroke and is relatively faster during another part of the cutting stroke.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: September 23, 2008
    Assignee: Danzer North America, Inc.
    Inventors: Jürgen F. Trost, Wolfgang Lacroix
  • Publication number: 20070289673
    Abstract: A method and apparatus for trimming the edges of sheets including providing a conveyor, a first saw and a second saw, first conveying the sheets on the conveyor past the first saw, trimming a first side edge of the sheets, and then conveying the sheets on the conveyor past the second saw and trimming a second side edge of the sheets.
    Type: Application
    Filed: June 20, 2006
    Publication date: December 20, 2007
    Inventors: Wolfgang LaCroix, Daniel J. Rastatter, Juergen F. Trost
  • Patent number: 7025099
    Abstract: A drive mechanism for reciprocating a flitch table (114), the drive mechanism comprising a drive shaft (118) having an output end, a prime mover coupled to the drive shaft (118) for rotating the drive shaft (118), a coupler (120) on the output end of the drive shaft (118), and a connecting rod (122) coupled to the flitch table (114) and the coupler (120). The flitch table (114) is supported from the frame (130) by a guide member (128) secured to one of the flitch table (114) and the frame (130) and a bearing member (126) secured to the other of the flitch table (114) and the frame (130) for cooperation with the guide member (128). The guide member (128) and bearing member (126) form between them at least one channel (86) for a plurality of bearings (90). The bearings (90) are movable relative to the bearing member (126) and the guide member (128).
    Type: Grant
    Filed: August 19, 1999
    Date of Patent: April 11, 2006
    Assignee: Danzer North America, Inc.
    Inventors: Hartmut Gruender, Jürgen F. Trost, Daniel J. Rastatter
  • Patent number: 6474379
    Abstract: A method and apparatus for automatically planing a flitch. The method of the invention comprises measuring the distance between the top and bottom surfaces of the flitch at a plurality of longitudinally spaced locations, calculating a planing operation of the flitch based upon the plurality of distance measurements; and then planing the flitch according to the calculation. In a preferred embodiment, the measurements are taken by a bank of photodetectors in combination with a computer (microprocessor). The calculation is done by the microprocessor.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: November 5, 2002
    Assignees: Merritt Plywood Machinery, Inc., Danzer Services, Inc.
    Inventors: David Mellor, Juergen F. Trost, Mark J. Lorenc, Daniel J. Rastatter