Patents by Inventor Jan Krispinsson
Jan Krispinsson 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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Patent number: 9127330Abstract: A method of forming a product by shaping and hardening a sheet-steel blank formed from separate sheets welded together, heating the blank to the austenitising range, hot stamping the blank in a cooled tool pair, hardening the product while it remains in the tool pair, and cooling the weld between two adjacent sheets at a reduced cooling rate as compared to the cooling rate of areas on either side of the weld.Type: GrantFiled: June 9, 2010Date of Patent: September 8, 2015Assignee: Gestamp Hardtech ABInventor: Jan Krispinsson
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Patent number: 8684449Abstract: The invention relates to a B-pillar for a vehicle including a main section (20) with a hat-shaped section (21) comprising a central flange (22), two web portions (23, 24) and two side flanges (25, 26). At least the hat-shaped section (21) is press-hardened and has a breaking strength in excess of 1400 MPa and the side flanges (25, 26) of the hat-shaped section (21) have a breaking strength below 1100 MPa along at least part of the length of the side flanges (25, 26). The B-pillar (13) includes a cover plate (40) welded to the side flanges (25, 26) of the hat-shaped section (21) so as to form a closed profile, the cover plate (40) having a breaking strength below 1100 MPa at least in the region in which it bears against the side flanges (25, 26). The side flanges (25, 26) of the hat-shaped section have a breaking strength below 1100 MPa in the region in which the side flanges bear against the cover plate (40).Type: GrantFiled: December 12, 2010Date of Patent: April 1, 2014Assignee: Gestamp Hardtech ABInventors: Hans Bodin, Jan Krispinsson, Paul Akerstrom, Daniel Berglund, Lars Wikstrom, Martin Holmberg
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Patent number: 8465088Abstract: An A-pillar for a vehicle includes a first part (15) extending as far as the windscreen and supporting the door hinges and a second arcuate part (16) extending up along the windscreen and continuing towards the back in order to serve as a roof beam (19) above the door. This second part consists of two open sections (23, 24) with flanges (25, 26; 27, 28) welded together so as to give the pillar a closed profile. At least one of the sections (23) is press-hardened and has a breaking strength in excess of 1400 MPa and the flanges (25, 26; 27, 28) of the sections have a breaking strength below 1100 MPa in a portion (35) situated above the door.Type: GrantFiled: December 11, 2010Date of Patent: June 18, 2013Assignee: Gestamp Hardtech ABInventors: Hans Bodin, Jan Krispinsson, Paul Akerstrom, Daniel Berglund, Lars Wikstrom, Martin Holmberg
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Publication number: 20120319432Abstract: An A-pillar for a vehicle includes a first part (15) extending as far as the windscreen and supporting the door hinges and a second arcuate part (16) extending up along the windscreen and continuing towards the back in order to serve as a roof beam (19) above the door. This second part consists of two open sections (23, 24) with flanges (25, 26; 27, 28) welded together so as to give the pillar a closed profile. At least one of the sections (23) is press-hardened and has a breaking strength in excess of 1400 MPa and the flanges (25, 26; 27, 28) of the sections have a breaking strength below 1100 MPa in a portion (35) situated above the door.Type: ApplicationFiled: December 11, 2010Publication date: December 20, 2012Inventors: Hans Bodin, Jan Krispinsson, Paul Akerstrom, Daniel Berglund, Lars Wikstrom, Martin Holmberg
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Publication number: 20120319431Abstract: The invention relates to a B-pillar for a vehicle including a main section (20) with a hat-shaped section (21) comprising a central flange (22), two web portions (23, 24) and two side flanges (25, 26). At least the hat-shaped section (21) is press-hardened and has a breaking strength in excess of 1400 MPa and the side flanges (25, 26) of the hat-shaped section (21) have a breaking strength below 1100 MPa along at least part of the length of the side flanges (25, 26). The B-pillar (13) includes a cover plate (40) welded to the side flanges (25, 26) of the hat-shaped section (21) so as to form a closed profile, the cover plate (40) having a breaking strength below 1100 MPa at least in the region in which it bears against the side flanges (25, 26). The side flanges (25, 26) of the hat-shaped section have a breaking strength below 1100 MPa in the region in which the side flanges bear against the cover plate (40).Type: ApplicationFiled: December 12, 2010Publication date: December 20, 2012Inventors: Hans Bodin, Jan Krispinsson, Paul Akerstrom, Daniel Berglund, Lars wikstrom, Martin Holmberg
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Publication number: 20120073708Abstract: The properties of products manufactured by press hardening from composite blanks, referred to as tailor-welded blanks (TWB), are improved by cooling the weld at a reduced cooling rate during the hardening of the formed product so that a narrow, soft area is formed alongside the weld.Type: ApplicationFiled: June 9, 2010Publication date: March 29, 2012Inventor: Jan Krispinsson
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Patent number: 7059657Abstract: A supporting frame 10 of a door with an integrated side impact guard beam 22 is made of high strength steel. The outer panel 28 of the door will be close to the side impact guard beam. All the interior units of the door, such as lock and window structure 34–37 with window frame 37, are mounted on a beam structure 30. The beam structure is then mounted on the frame 10 so that the window structure will be between the frame 10 and the beam structure 30.Type: GrantFiled: August 7, 2003Date of Patent: June 13, 2006Assignee: Gestamp Hardtech ABInventors: Hans Bodin, Martin Jonsson, Jan Krispinsson, Lars Wikstrom
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Patent number: 7048323Abstract: A vehicle door has a supporting press formed frame (10) of high-strength steel that has two standing hat beams (13, 15) interconnected by an upper horizontal hat beam (14), a lower horizontal hat beam (16) and intermediate side impact guard beam (22). The hat beams have their crowns (12) directed towards the interior of the vehicle and they carry an outer panel (28) by their outer side flanges (17). The standing hat beams (13, 15) have a profile height on at least portion (23, 24, 28) of their length that overlaps the corresponding pillar (30, 34). Thereby, in a frontal crash, the frame of the door can transmit force from the A-pillar of the vehicle to the B-pillar.Type: GrantFiled: August 7, 2003Date of Patent: May 23, 2006Assignee: SSAB Hardtech ABInventors: Hans Bodin, Martin Jonsson, Jan Krispinsson, Lars Wikstrom
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Patent number: 7021697Abstract: A vehicle door has a supporting frame (10) substantially in the form of a rectangular annular hat beam (13–16) of high-strength steel, which, with its outer side flange (17), carries the outer panel (28) of the door and has its crown (12) towards the vehicle interior. The lower rear portion of the outer side flange (17) has a bolt 32 arranged to fit in a hole (35) in the pillar (34). In case of a side impact, the bolt will make the pillar participate in the energy absorption. The frame (10) is comparatively shallow and it can therefore have a high yield strength and all the other elements of the door can be mounted on the inside of the frame, which make them easily available for service.Type: GrantFiled: August 8, 2003Date of Patent: April 4, 2006Assignee: SSAB Hardtech ABInventors: Hans Bodin, Martin Jonsson, Jan Krispinsson, Lars Wikstrom
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Publication number: 20050264028Abstract: A supporting frame 10 of a door with an integrated side impact guard beam 22 is made of high strength steel. The outer panel 28 of the door will be close to the side impact guard beam. All the interior units of the door, such as lock and window structure 34-37 with window frame 37, are mounted on a beam structure 30. The beam structure is then mounted on the frame 10 so that the window structure will be between the frame 10 and the beam structure 30.Type: ApplicationFiled: August 7, 2003Publication date: December 1, 2005Inventors: Hans Bodin, Martin Jonsson, Jan Krispinsson, Lars Wikstrom
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Publication number: 20050253415Abstract: A vehicle door has a supporting frame (10) substantially in the form of a rectangular annular hat beam (13-16) of high-strength steel, which, with its outer side flange (17), carries the outer panel (28) of the door and has its crown (12) towards the vehicle interior. The lower rear portion of the outer side flange (17) has a bolt 832) aranged to fit in a hole (35) in the pillar (34). In case of a side impact, the bolt will make the pillar participate in the energy absorption. The frame (10) is comparatively shallow and it can therefore have a high yield strength and all the other elements of the door can be mounted on the inside of the frame, which make them easily available for service.Type: ApplicationFiled: August 8, 2003Publication date: November 17, 2005Inventors: Hans Bodin, Martin Jonsson, Jan Krispinsson, Lars Wikstrom
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Publication number: 20050206191Abstract: A vehicle door has a supporting press formed frame (10) of high-strength steel that has two standing hat beams (13, 15) interconnected by an upper horizontal hat beam (14), a lower horizontal hat beam (16) and intermediate side impact guard beam (22). The hat beams have their crowns (12) directed towards the interior of the vehicle and they carry an outer panel (28) by their outer side flanges (17). The standing hat beams (13, 15) have a profile height on at least portion (23, 24, 28) of their length that overlaps the corresponding pillar (30, 34). Thereby, in a frontal crash, the frame of the door can transmit force from the A-pillar of the vehicle to the B-pillar.Type: ApplicationFiled: August 7, 2003Publication date: September 22, 2005Inventors: Hans Bodin, Martin Jonsson, Jan Krispinsson, Lars Wikstrom