Patents by Inventor Jurgen F. Trost

Jurgen 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).

  • 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
  • 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 The movable support moves to a retracted orientation to assist a stack to be withdrawn therefrom.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: 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
  • Publication number: 20090078338
    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: Application
    Filed: December 2, 2008
    Publication date: March 26, 2009
    Applicant: DANZER NORTH AMERICA, INC.
    Inventors: Jurgen F. Trost, Wolfgang Lacroix
  • 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
  • Publication number: 20080283149
    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: July 31, 2008
    Publication date: November 20, 2008
    Inventors: Daniel J. Rastatter, Jurgen F. Trost
  • 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: 20080135379
    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: Application
    Filed: March 10, 2005
    Publication date: June 12, 2008
    Inventors: Arlington D. Ruff, Clifford A. Ruff, Jurgen 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