Patents by Inventor Lars Ingvarsson

Lars Ingvarsson 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: 11878337
    Abstract: Roll-forming machine for forming, from a flat sheet metal strip (5), a hat beam which has a profile that varies along its length. The machine comprises several consecutively arranged forming stations, each of which comprising a first pair of clamping rollers (22a, 22b) for clamping a side flange (3a) of the hat beam and a second pair of clamping rollers (23a, 23b) for clamping a central flange (2) thereof. The clamping rollers of said second pair are individually displaceable in vertical direction and horizontally in the feeding direction of the sheet metal strip. The displacement of the clamping rollers (23a, 23b) of said second pair is controlled by an electronic control device during a forming operation such that a plane that goes through the centre axes (CA3, CA4) of both these clamping rollers is maintained perpendicular to the part of the central flange (2) received in the nip (31) between these clamping rollers.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: January 23, 2024
    Assignee: Ingvest AB
    Inventor: Lars Ingvarsson
  • Patent number: 11660651
    Abstract: The invention relates to a device (10) for the flexible roll forming of a semifinished product (12), in particular a rolled sheet, to form a profile (12?, 12?) with a cross section varying along the longitudinal axis thereof and/or with a varying longitudinal axis. The device (10) has a frame (14) and a number of supporting devices (16), which are carried by the frame (14). The supporting devices (16) are each movable in a translational manner in relation to the frame (14) and rotatably mounted. The device (10) also has a number of profiling units (18), which each have a pair (20) of rotatably mounted rollers (20?, 20?), between which a rolling gap (102) remains. According to the invention, precisely two profiling units (18) are arranged in a rotatably mounted manner on each supporting device (16).
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: May 30, 2023
    Assignee: METAL ENVELOPE GMBH
    Inventor: Lars Ingvarsson
  • Publication number: 20220226877
    Abstract: Roll-forming machine for forming, from a flat sheet metal strip (5), a hat beam which has a profile that varies along its length. The machine comprises several consecutively arranged forming stations, each of which comprising a first pair of clamping rollers (22a, 22b) for clamping a side flange (3a) of the hat beam and a second pair of clamping rollers (23a, 23b) for clamping a central flange (2) thereof. The clamping rollers of said second pair are individually displaceable in vertical direction and horizontally in the feeding direction of the sheet metal strip. The displacement of the clamping rollers (23a, 23b) of said second pair is controlled by an electronic control device during a forming operation such that a plane that goes through the centre axes (CA3, CA4) of both these clamping rollers is maintained perpendicular to the part of the central flange (2) received in the nip (31) between these clamping rollers.
    Type: Application
    Filed: April 30, 2020
    Publication date: July 21, 2022
    Inventor: Lars INGVARSSON
  • Publication number: 20210379640
    Abstract: The invention relates to a device (10) for the flexible roll forming of a semifinished product (12), in particular a rolled sheet, to form a profile (12?, 12?) with a cross section varying along the longitudinal axis thereof and/or with a varying longitudinal axis. The device (10) has a frame (14) and a number of supporting devices (16), which are carried by the frame (14). The supporting devices (16) are each movable in a translational manner in relation to the frame (14) and rotatably mounted. The device (10) also has a number of profiling units (18), which each have a pair (20) of rotatably mounted rollers (20?, 20?), between which a rolling gap (102) remains. According to the invention, precisely two profiling units (18) are arranged in a rotatably mounted manner on each supporting device (16).
    Type: Application
    Filed: October 7, 2019
    Publication date: December 9, 2021
    Inventor: Lars INGVARSSON
  • Publication number: 20190210084
    Abstract: During the roll-forming of a plate bar section (11) to a profile (12, 13) with variable width and upright sides (22,23) with (FIG. 1) or without (FIG. 2) flanges (24, 25), the upright sides (22, 23) are clamped in one of the last three forming stations (FIG. 12). This can yield a product with a plane bottom so that the product is not bent up (FIG. 8) or down (FIG. 10), which happens without the above-cited clamping (FIG. 13) of the upright sides (22, 23).
    Type: Application
    Filed: October 19, 2017
    Publication date: July 11, 2019
    Inventor: Lars Ingvarsson
  • Patent number: 10016796
    Abstract: A method is provided for roll-forming a sheet metal strip (35) by driving the sheet metal strip through a row of forming stations (17, 18) having pairs of rollers (19, 20; 29, 30) directed towards each other and both holding the sheet metal strip therebetween and forming the sheet metal strip over roller edges. In every second forming station (12), two angles (41, 42) are gradually formed and in every second forming station two other angles (43, 44) are gradually formed.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: July 10, 2018
    Assignee: Ortic 3D AB
    Inventor: Lars Ingvarsson
  • Publication number: 20170008053
    Abstract: A method is provided for roll-forming a sheet metal strip (35) by driving the sheet metal strip through a row of forming stations (17, 18) having pairs of rollers (19, 20; 29, 30) directed towards each other and both holding the sheet metal strip therebetween and forming the sheet metal strip over roller edges. In every second forming station (12), two angles (41, 42) are gradually formed and in every second forming station two other angles (43, 44) are gradually formed.
    Type: Application
    Filed: September 26, 2016
    Publication date: January 12, 2017
    Inventor: Lars Ingvarsson
  • Patent number: 9475108
    Abstract: A roll-forming machine has a stand (11) and a row of forming stations (12), which comprise frames (14, 15) for carriers (17, 18) of pair of rollers laterally displaceably mounted on the stand. An intermediate piece (16) is pivotally mounted on each frame for being pivoted about a vertical axis, and two carriers of a pair of rollers are separately laterally displaceably mounted on each intermediate piece. Each carrier of a pair of rollers comprises two axle pins for carrying a forming roller each and the two carriers of a pair of rollers have their axle pins directed towards each other.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: October 25, 2016
    Assignee: Ortic 3D AB
    Inventor: Lars Ingvarsson
  • Publication number: 20140298876
    Abstract: A roll-forming machine has a stand (11) and a row of forming stations (12), which comprise frames (14, 15) for carriers (17, 18) of pair of rollers laterally displaceably mounted on the stand. An intermediate piece (16) is pivotally mounted on each frame for being pivoted about a vertical axis, and two carriers of a pair of rollers are separately laterally displaceably mounted on each intermediate piece. Each carrier of a pair of rollers comprises two axle pins for carrying a forming roller each and the two carriers of a pair of rollers have their axle pins directed towards each other.
    Type: Application
    Filed: November 16, 2012
    Publication date: October 9, 2014
    Applicant: Ortic 3D AB
    Inventor: Lars Ingvarsson
  • Patent number: 8794044
    Abstract: Metal sheets, and in particular, metal sheets for roofing of the kind having upstanding flat edges ending with beads, are bent by rolling the flat edges such that they become gradually thinner towards the beads. The sheets will also be bent if the beads are not rolled. Metal sheets having upstanding sides, and ends bent towards or away from the upstanding sides, are also bent by rolling the upstanding sides gradually thinner towards or away from the bent ends for forming beams for automotive components as well as other products.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: August 5, 2014
    Assignee: Ortic 3D AB
    Inventor: Lars Ingvarsson
  • Patent number: 8650923
    Abstract: Profiles (50) are formed in a production line with a cross-section that varies along their length from a plane metal strip (10) that is unwound from a tape reel (9). Edge cutters (14) and roll-forming units (17-24) are displaceable individually sideways relative to the strip, and are individually controlled. The formed profile is curved in a curving station integrated into the production line and having roller pairs (82, 84; 83, 85) that can be controlled to roll sides of the profile (50) such that they become thinner so that the profile is curved or twisted as it is formed. The roller pairs and the sideways displacement and the angular motion of the roll-forming units are controlled so that the roller pairs follow the sides and such that a line (II) between the axles of one roller pair is held perpendicular to the surface being rolled.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: February 18, 2014
    Assignee: Ortic 3D AB
    Inventor: Lars Ingvarsson
  • Patent number: 8601845
    Abstract: Profiles (50) are formed in a production line with a cross-section that varies along their length from a plane metal strip (10) that is unwound from a coil (9), whereby edge cutters (14) and a number of roll-forming units (17-24) are used where not only the edge cutters but also the roll-forming units can be displaced individually sideways relative to the strip. The edge cutters (14) and the roll-forming units (17-24) are individually controlled such that they follow the lines of extent of the side edges (51, 52) that are cut and the lines of the corners (53-56) that are subsequently formed, and the forming of one corner with a number of roll-forming units is started only after the forming of a corner that lies more closely to the edge of the strip has been completed.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: December 10, 2013
    Assignee: Ortic 3D AB
    Inventor: Lars Ingvarsson
  • Publication number: 20130276497
    Abstract: When roll-forming a blank into a profile having varying width and upright sides, the vertical position of at least any one of the forming roll pairs (21, 22; 23, 24) is varied 5 on either side during the roll-forming operation while the lateral and rotational positions thereof are simultaneously varied. The profile can thus be given a flat bottom during the roll-forming operation itself.
    Type: Application
    Filed: November 21, 2011
    Publication date: October 24, 2013
    Inventor: Lars Ingvarsson
  • Patent number: 8181499
    Abstract: A beam with a hat-shaped profile with a cross-section that varies along its length is successively formed from a plane sheet metal strip using a roll-forming machine with a number of forming stations. The forming stations (11, 12) have a pair of clamping rollers (21, 22 and 23, 24) for each side flange (16, 17) and support rollers (25, 26) for the central flange. The pairs of clamping rollers in the forming stations can be displaced both horizontally and vertically during a forming operation, and the support rollers (25, 26) can be displaced vertically and they can be displaced individually in a sideways direction. All four corners (27-30) of the hat-shaped beam are formed at the same time, whereby the corners are folded on the peripheral edges of the clamping rollers and support rollers. Not only the axes of the pairs of clamping rollers but also of the support rollers can be turned in order to adapt to the corners that are being formed.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: May 22, 2012
    Assignee: Ortic 3D AB
    Inventor: Lars Ingvarsson
  • Publication number: 20090223272
    Abstract: Metal sheets, and in particular, metal sheets for roofing of the kind having upstanding flat edges ending with beads, are bent by rolling the flat edges such that they become gradually thinner towards the beads. The sheets will also be bent if the beads are not rolled. Metal sheets having upstanding sides, and ends bent towards or away from the upstanding sides, are also bent by rolling the upstanding sides gradually thinner towards or away from the bent ends for forming beams for automotive components as well as other products.
    Type: Application
    Filed: August 7, 2008
    Publication date: September 10, 2009
    Inventor: Lars Ingvarsson
  • Publication number: 20090113974
    Abstract: A beam with a hat-shaped profile with a cross-section that varies along its length is successively formed from a plane sheet metal strip using a roll-forming machine with a number of forming stations. The forming stations (11, 12) have a pair of clamping rollers (21, 22 and 23, 24) for each side flange (16, 17) and support rollers (25, 26) for the central flange. The pairs of clamping rollers in the forming stations can be displaced both horizontally and vertically during a forming operation, and the support rollers (25, 26) can be displaced vertically and they can be displaced individually in a sideways direction. All four corners (27-30) of the hat-shaped beam are formed at the same time, whereby the corners are folded on the peripheral edges of the clamping rollers and support rollers. Not only the axes of the pairs of clamping rollers but also of the support rollers can be turned in order to adapt to the corners that are being formed.
    Type: Application
    Filed: July 10, 2006
    Publication date: May 7, 2009
    Applicant: ORTIC 3D AB
    Inventor: Lars Ingvarsson
  • Publication number: 20090025446
    Abstract: Profiles (50) are formed in a production line with a cross-section that varies along their length from a plane metal strip (10) that is unwound from a tape reel (9), whereby edge cutters (14) and a number of roll-forming units (17-24) are used where not only the edge cutters but also the roll-forming units can be displaced individually sideways relative to the strip. The edge cutters (14) and the roll-forming units (17-24) are individually controlled. The formed profile is curved in a curving station integrated into the line, which curving station comprises roller pairs (82, 84; 83, 85) that can be controlled to roll sides of the profile (50) such that they become thinner such that the profile is curved or twisted as it is formed.
    Type: Application
    Filed: April 24, 2006
    Publication date: January 29, 2009
    Applicant: ORTIC 3D AB
    Inventor: Lars Ingvarsson
  • Patent number: 7441432
    Abstract: A production line for the manufacture of a product through hydroforming, having a decoiler (11) for unrolling a steel strip (12) from a coil (13), a roll-forming unit (14) for folding the steel strip into a tube (16), a welding unit (17) for welding together the edges of the steel strip, a hydroforming unit (18) having an openable mold (19, 20) to receive the completed tube as the tube is being formed and welded, a cutting arrangement (24, 25) for cutting off the completed product (23) that has been removed from the hydroforming unit, sealing arrangements (30, 33; 35-39) at two ends of the mold for sealing the tube, and a line (38) for the supply of pressure medium through one of the sealing arrangements for placing the tube under pressure. A method for manufacturing a product in such a line is also provided.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: October 28, 2008
    Assignee: Ortic 3D AB
    Inventor: Lars Ingvarsson
  • Patent number: 7409844
    Abstract: Metal sheets, and in particular, metal sheets for roofing of the kind having upstanding flat edges ending with beads, are bent by rolling the flat edges such that they become gradually thinner towards the beads. The sheets will also be bent if the beads are not rolled.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: August 12, 2008
    Assignee: Ortic AB
    Inventor: Lars Ingvarsson
  • Publication number: 20080121007
    Abstract: A hydroforming unit comprises a mould (19,20) that can be opened and sealing arrangements (30-33; 35-39) for sealing the ends of a tube-formed blank (16) placed in the mould, each one of the sealing arrangements (30-33; 35-39) comprises a ring (30, 35) with a thin wall that fits into the inner surface of the tube (16), and a plug (33, 36) that can be displaced in an axial direction mounted axially inside of the ring, and an arrangement (32,37) for initially drawing the plug (33, 36) outwards to put the ring under elastic tension against the inside of the tube-formed blank so that the plug and the ring together form a seal.
    Type: Application
    Filed: February 1, 2006
    Publication date: May 29, 2008
    Inventor: Lars Ingvarsson