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).
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Publication number: 20110180183Abstract: 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: ApplicationFiled: April 5, 2011Publication date: July 28, 2011Inventors: Jürgen F. Trost, Wolfgang Lacroix
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Publication number: 20110041668Abstract: 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: ApplicationFiled: November 2, 2010Publication date: February 24, 2011Applicant: PADANA AGInventors: Daniel J. Rastatter, Jürgen F. Trost
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Patent number: 7871070Abstract: 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 The movable support moves to a retracted orientation to assist a stack to be withdrawn therefrom.Type: GrantFiled: March 9, 2005Date of Patent: January 18, 2011Assignee: Padana AGInventors: Arlington D. Ruff, Clifford A. Ruff, Jürgen F. Trost
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Patent number: 7673743Abstract: 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: GrantFiled: March 10, 2005Date of Patent: March 9, 2010Assignee: Padana AGInventors: Arlington D. Ruff, Clifford A. Ruff, Jürgen F. Trost
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Publication number: 20090173411Abstract: 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: ApplicationFiled: November 7, 2006Publication date: July 9, 2009Inventors: Jürgen F. Trost, Daniel J. Rastatter, Benjamin D. Smith, Harold Wayne Fleming, A. Scott Mcinnis, David E. Seffens, Gregory G. Chandler, Carl D. Shore
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Publication number: 20090078338Abstract: 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: ApplicationFiled: December 2, 2008Publication date: March 26, 2009Applicant: DANZER NORTH AMERICA, INC.Inventors: Jurgen F. Trost, Wolfgang Lacroix
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Patent number: 7458404Abstract: 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: GrantFiled: January 31, 2003Date of Patent: December 2, 2008Assignee: Danzer North America, Inc.Inventors: Jürgen F. Trost, Wolfgang Lacroix
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Publication number: 20080283149Abstract: 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: ApplicationFiled: July 31, 2008Publication date: November 20, 2008Inventors: Daniel J. Rastatter, Jurgen F. Trost
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Patent number: 7426947Abstract: 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: GrantFiled: April 11, 2007Date of Patent: September 23, 2008Assignee: Danzer North America, Inc.Inventors: Jürgen F. Trost, Wolfgang Lacroix
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Publication number: 20080135379Abstract: 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: ApplicationFiled: March 10, 2005Publication date: June 12, 2008Inventors: Arlington D. Ruff, Clifford A. Ruff, Jurgen F. Trost
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Patent number: 7025099Abstract: 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: GrantFiled: August 19, 1999Date of Patent: April 11, 2006Assignee: Danzer North America, Inc.Inventors: Hartmut Gruender, Jürgen F. Trost, Daniel J. Rastatter