Patents by Inventor Tommy Grankäll

Tommy Grankäll 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: 9180979
    Abstract: An aircraft article composite forming tool and a method for producing the tool. The aircraft article to be formed includes a composite material including an outer surface. The aircraft article composite forming tool includes a matrix laminate made of at least an upper ply including a forming surface for forming the aircraft article and outer surface. The upper ply includes a nano filament structure embedded therein.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: November 10, 2015
    Assignee: SAAB AB
    Inventors: Per Hallander, Mikael Petersson, Björn Weidmann, Tommy Grankäll, Göte Strindberg, Pontus Nordin
  • Publication number: 20150290845
    Abstract: A method of manufacture of a composite aircraft article aerodynamic surface by forming the composite aircraft article aerodynamic surface on an aircraft article composite forming tool. The aircraft article composite forming tool includes a matrix laminate including an upper ply including a forming surface for forming the composite aircraft article aerodynamic surface. The upper ply of the aircraft article composite forming tool includes a nano filament structure embedded therein. A blank is conformed onto the aircraft article composite forming tool. The aircraft article is formed on the upper ply of the forming surface. The forming surface of the aircraft article composite forming tool is adapted to form an aerodynamic surface of the aircraft article. The blank is cured into the aircraft article. The composite aircraft article is finished.
    Type: Application
    Filed: April 16, 2015
    Publication date: October 15, 2015
    Inventors: Per HALLANDER, Mikael PETERSSON, Björn WEIDMANN, Tommy GRANKÄLL, Göte STRINDBERG, Pontus NORDIN
  • Patent number: 9040142
    Abstract: A composite article having a longitudinal direction and a transversal direction. The article includes a stack of plies wherein one ply is a bottom ply and one ply is a top ply. Most or all of the plies include fibers. A plurality of plies have fibers substantially in an orthogonal direction and substantially in a same direction as the longitudinally direction of the article. The bottom ply and the top ply have fibers in a substantially orthogonal direction to the longitudinal direction of the article. At least one ply has the fibers substantially in the same direction as the longitudinal direction of the article. At least one of the plies having fibers substantially in the longitudinal direction includes particles selected from the group of thermoplastic tougheners, nano particles, micro particles, elastic particles, elastomer particles and polymer particles or a combination. Also a method of forming an article on a tool.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: May 26, 2015
    Assignee: SAAB AB
    Inventors: Björn Weidmann, Mikael Petersson, Per Hallander, Pontus Nordin, Tommy Grankäll
  • Patent number: 8916252
    Abstract: A structural composite part made of pre-impregnated fiber plies. The edges of two adjacent fiber plies are connected via a longitudinal composite joint made structural by a nanostructure arranged within the composite joint. A method of producing a structural composite part made of pre-impregnated fiber plies. The edges of two adjacent fiber plies are connected via a longitudinal composite joint made structural by a nanostructure and an aircraft structure comprising such structural composite parts.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: December 23, 2014
    Assignee: SAAB AB
    Inventors: Per Hallander, Mikael Petersson, Bjorn Weidmann, Tommy Grankäll, Göte Strindberg, Pontus Nordin, Rustan Önnefors
  • Publication number: 20140284431
    Abstract: The present invention regards an aircraft structure comprising an aerodynamic composite shell (7), the interior face (9) of which in whole or in part is bonded with at least one two- or three-dimensional structural composite part (11) by means of a bonding material (15). It also regards a method of manufacture of the aircraft structure. The bonding material (15) comprises a non-structural fiber reinforced resin system, wherein at least one portion of the bonding material, which portion spatially corresponds with an interior face filling volume (21), is thicker than other portions of the bonding material (15), due to settlement of resin of the non-structural fiber reinforced resin system in said interior face filling volume (21) during the viscous phase of the curing of the non-structural fiber reinforced resin system.
    Type: Application
    Filed: December 12, 2011
    Publication date: September 25, 2014
    Applicant: SAAB AB
    Inventors: Tommy Grankaell, Per Hallander, Mikael Petersson, Bjoern Weidmann
  • Publication number: 20140147619
    Abstract: The present invention relates to a composite article 801, wherein the article has a longitudinal direction L and a transversal direction T, the article 80 comprises a stack of plies wherein one ply is a bottom ply and one ply is a top ply, most of or all of the plies comprise fibres, and the article comprises a plurality of plies having fibres substantially in the orthogonal direction 810 to the longitudinal direction L of the article 801 and the stack further comprises a plurality of plies having fibres substantially in the same direction 811 as the longitudinally direction L of the article 801 and/or a plurality of plies having fibres in the diagonal direction (812, 813, 815, 816, 817, 818) of the longitudinal direction (L) of the article (801), wherein at least one of the ply/plies having fibres substantially in the orthogonal direction 810 to the longitudinal direction L of the article 801 comprise fibres that are stiffer than the fibres in the other plies which have less stiff fibres.
    Type: Application
    Filed: January 21, 2011
    Publication date: May 29, 2014
    Applicant: SAAB AB
    Inventors: Tommy Grankaell, Per Hallander, Anders Lundberg, Tonny Nyman, Bjoern Weidmann, Mikael Petersson
  • Patent number: 8662452
    Abstract: A structural article including an outer surface that serves as an aerodynamic surface when the structural article is subjected for an air stream. A resin matrix laminate includes an upper ply and a bottom ply. A heating element is arranged in contact with the bottom ply and coupled to a power supply unit in purpose to deice/anti-ice the outer surface. Each ply includes a thermally conductive filament structure having a filament orientation such that the prolongation of the filaments has an extension essentially perpendicular to the extension of the laminate. The thermally conductive filament structure of the upper ply is embedded in the upper ply in such way that at least a portion of the thermally conductive filament structure is exposed in the outer surface.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: March 4, 2014
    Assignee: SAAB AB
    Inventors: Per Hallander, Mikael Petersson, Björn Weidmann, Tommy Grankäll, Göte Strindberg, Pontus Nordin
  • Publication number: 20130240110
    Abstract: An aircraft article composite forming tool and a method for producing the tool. The aircraft article to be formed includes a composite material including an outer surface. The aircraft article composite forming tool includes a matrix laminate made of at least an upper ply including a forming surface for forming the aircraft article and outer surface. The upper ply includes a nano filament structure embedded therein.
    Type: Application
    Filed: February 4, 2010
    Publication date: September 19, 2013
    Applicant: SAAB AB
    Inventors: Per Hallander, Mikael Petersson, Björn Weidmann, Tommy Grankäll, Göte Strindberg, Pontus Nordin
  • Publication number: 20130129968
    Abstract: A composite article having a longitudinal direction and a transversal direction. The article includes a stack of plies wherein one ply is a bottom ply and one ply is a top ply. Most or all of the plies include fibers. A plurality of plies have fibers substantially in an orthogonal direction and substantially in a same direction as the longitudinally direction of the article. The bottom ply and the top ply have fibers in a substantially orthogonal direction to the longitudinal direction of the article. At least one ply has the fibers substantially in the same direction as the longitudinal direction of the article. At least one of the plies having fibers substantially in the longitudinal direction includes particles selected from the group of thermoplastic tougheners, nano particles, micro particles, elastic particles, elastomer particles and polymer particles or a combination. Also a method of forming an article on a tool.
    Type: Application
    Filed: May 11, 2010
    Publication date: May 23, 2013
    Applicant: SAAB AB
    Inventors: Björn Weidmann, Mikael Petersson, Per Hallander, Pontus Nordin, Tommy Grankäll
  • Publication number: 20120292439
    Abstract: A structural article including an outer surface that serves as an aerodynamic surface when the structural article is subjected for an air stream. A resin matrix laminate includes an upper ply and a bottom ply. A heating element is arranged in contact with the bottom ply and coupled to a power supply unit in purpose to deice/anti-ice the outer surface. Each ply includes a thermally conductive filament structure having a filament orientation such that the prolongation of the filaments has an extension essentially perpendicular to the extension of the laminate. The thermally conductive filament structure of the upper ply is embedded in the upper ply in such way that at least a portion of the thermally conductive filament structure is exposed in the outer surface.
    Type: Application
    Filed: January 14, 2010
    Publication date: November 22, 2012
    Applicant: SAAB AB
    Inventors: Per Hallander, Mikael Petersson, Björn Weidmann, Tommy Grankäll, Göte Strindberg, Pontus Nordin
  • Publication number: 20120148789
    Abstract: An aircraft structure including structural composite parts assembled together to form the aircraft structure. A bonding interlayer material bonds the structural composite parts to each other. The bonding interlayer material includes a nanostructure enhanced material. A method of producing an aircraft structure of assembled structural composite parts, being cured or semi-cured before assembly.
    Type: Application
    Filed: June 11, 2009
    Publication date: June 14, 2012
    Inventors: Per Hallander, Mikael Petersson, Björn Weidmann, Tommy Grankäll, Pontus Nordin
  • Publication number: 20120088056
    Abstract: A structural composite part made of pre-impregnated fiber plies. The edges of two adjacent fiber plies are connected via a longitudinal composite joint made structural by a nanostructure arranged within the composite joint. A method of producing a structural composite part made of pre-impregnated fiber plies. The edges of two adjacent fiber plies are connected via a longitudinal composite joint made structural by a nanostructure and an aircraft structure comprising such structural composite parts.
    Type: Application
    Filed: June 11, 2009
    Publication date: April 12, 2012
    Applicant: SAAB AB
    Inventors: Per Hallander, Mikael Petersson, Bjorn Weidmann, Tommy Grankäll, Göte Strindberg, Pontus Nordin, Rustan Önnefors
  • Publication number: 20120074265
    Abstract: A composite radius filler for use in an aircraft structure. The aircraft structure includes structural composite parts assembled together to form the aircraft structure. The composite radius filler is arranged between rounded sections of the structural composite parts for filling a gap formed between the structural composite parts. The composite radius filler is made structural by a nanostructure arranged within the composite radius filler for the reinforcement of the interface between the radius filler and the structural composite part. A method for producing an aircraft structure including a nano-reinforced radius filler.
    Type: Application
    Filed: June 11, 2009
    Publication date: March 29, 2012
    Applicant: SAAB AB
    Inventors: Per Hallander, Mikael Petersson, Bjorn Weidmann, Tommy Grankäll, Göte Strindberg, Pontus Nordin
  • Patent number: 7758793
    Abstract: A tool assembly including a male tool including an inner shape tool including a bag having a connection connectable to a depressurization source for providing a vacuum in the bag such that beads therein form a body of firm cohesion providing the inner shape tool rigid. The male tool further includes a flexible, hollow curing support arranged around the rigid inner shape tool, the inner shape tool is arranged to be removable from the flexible, hollow curing support by rupturing the vacuum.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: July 20, 2010
    Assignee: SAAB AB
    Inventors: Tommy Grankäll, Mikael Petersson, Per Hallander, Jan-erik Lindbäck, Bjorn Weidmann, Jan Andersson