Patents by Inventor Björn Pettersson
Björn Pettersson 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: 10150166Abstract: The present invention relates to a method for working of a work piece, comprising the step of a) providing a template (1) with at least one opening (4, 6, 8, . . . 32) to the work piece (2), b) providing a work tool (70) at the opening (4, 6, 8, . . . 32), c) determining a distance (a) between a fixed reference (17, 116) for the tool (70) and a surface (118) of the work piece (2) facing the template (1), d) collecting the determined distance (a) into a memory (126), e) vibrating a rotary cutting tool (68) on the work tool (70) by means of a vibrating means (77); and f) working the work piece (2) based on said collected distance (a). The present invention also relates to a system for working and measuring objects comprising a computer (128) including a computer program (P) for carrying out the method. The present invention also relates to a computer program (P) and a computer program product for performing the method steps.Type: GrantFiled: January 29, 2015Date of Patent: December 11, 2018Assignee: NOVATOR ABInventors: Hans-Petter Andersson, Björn Pettersson
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Publication number: 20170106452Abstract: The present invention relates to a method for working of a work piece, comprising the step of a) providing a template (1) with at least one opening (4, 6, 8, . . . 32) to the work piece (2), b) providing a work tool (70) at the opening (4, 6, 8, . . . 32), c) determining a distance (a) between a fixed reference (17, 116) for the tool (70) and a surface (118) of the work piece (2) facing the template (1), d) collecting the determined distance (a) into a memory (126), e) vibrating a rotary cutting tool (68) on the work tool (70) by means of a vibrating means (77); and f) working the work piece (2) based on said collected distance (a). The present invention also relates to a system for working and measuring objects comprising a computer (128) including a computer program (P) for carrying out the method. The present invention also relates to a computer programme (P) and a computer programme product for performing the method steps.Type: ApplicationFiled: January 29, 2015Publication date: April 20, 2017Inventors: Hans-Petter ANDERSSON, Björn PETTERSSON
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Publication number: 20160199922Abstract: The present invention relates to a method for measuring objects, comprising the step of providing a template (1) with at least one bushing (36-64) to a work piece (2), identifying the bushing (36-64), measuring the distance (a) between a fixed point (116) on the identified bushing (36-64) and a surface (118) of the work piece (2) facing the template (1), and collecting the measured distance (a) into a memory (126). The present invention also relates to a system for measuring and working objects comprising a computer (128) including a computer program (P) for carrying out the method. The present invention also relates to a computer program (P) and a computer program product for performing the method steps.Type: ApplicationFiled: June 17, 2014Publication date: July 14, 2016Inventors: Hans-Petter Andersson, Björn Pettersson
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Patent number: 8353471Abstract: A method of producing a foundation bed (1) for a granulator mill includes the steps that the foundation bed is cast from a plastic- or concrete based casting material in a mold (13) manufactured from thin sheet metal, the mold being given surfaces (16) for cooperation with a granulator mill housing (2) with high precision. In order to avoid after-treatment of the surfaces (16) of the mold intended for cooperation with the granulator mill housing, these surfaces are clamped during the casting process against a common, configurationally stable clamping member.Type: GrantFiled: December 26, 2008Date of Patent: January 15, 2013Assignee: Rapid Granulator ABInventors: Henrik Karlsson, Kurt Sjöberg, Ulf Henning, Björn Pettersson
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Patent number: 7972253Abstract: A pressure compensating device or arrangement for a roller arrangement which includes a central, non-rotating shaft provided with spaced apart bearings positioned adjacent opposite axial ends of the shaft and rotatably supporting at least one tubular roller segment, and where sealing arrangements are provided outside the bearings for sealing off the space inside the bearings and between the shaft and the roller segment towards the environment. The pressure compensating device includes a longitudinal bore extending from one end of the shaft and through at least a part thereof, with the bore communicating with the space between the sealing arrangements via channels. The bore is provided with a flexible member preventing direct communication between the exterior and the space between the sealing arrangements.Type: GrantFiled: October 6, 2006Date of Patent: July 5, 2011Assignee: Aktiebolaget SKFInventor: Björn Pettersson
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Publication number: 20100276565Abstract: A method of producing a foundation bed (1) for a granulator mill includes the steps that the foundation bed is cast from a plastic- or concrete based casting material in a mould (13) manufactured from thin sheet metal, the mould being given surfaces (16) for cooperation with a granulator mill housing (2) with high precision. In order to avoid after-treatment of the surfaces (16) of the mould intended for cooperation with the granulator mill housing, these surfaces are clamped during the casting process against a common, configurationally stable clamping member.Type: ApplicationFiled: December 26, 2008Publication date: November 4, 2010Applicant: RAPID GRANULATOR ABInventors: Henrik Karlsson, Kurt Sjöberg, Ulf Henning, Björn Pettersson
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Patent number: 7351018Abstract: A method and apparatus for measuring a hole depth in a composite-material workpiece machined by a orbital cutting tool, including the steps of applying a low-level electric potential to an electrically insulated cutting tool having a cutting head with radial and axial cutting edges and with a predetermined axial length; determining a first zero reference position as the cutting tool initially contacts a first surface of the workpiece and closes an electric circuit through the grounded workpiece; and detecting a second reference position when the cutting head penetrates an opposite, second surface of the workpiece. The finished hole depth is determined by deducting the predetermined axial length of the cutting head from the total length of axial advancement from the first zero reference position to the second reference position. The orbital machining apparatus includes ceramic bearings electrically insulating the spindle and the cutting tool from surrounding components of the apparatus.Type: GrantFiled: June 1, 2004Date of Patent: April 1, 2008Assignee: Novator ABInventors: Erik Odén, Björn Pettersson
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Patent number: 7189038Abstract: An orbital machining apparatus for producing a workpiece hole with a cutting tool, including: a first actuator for rotating the tool about its longitudinal center axis during the machining of the hole; a second actuator for moving the tool in an axial feed direction substantially parallel to the tool axis; a third actuator for rotating the cutting tool about a principal axis; and a radial offset mechanism. The third actuator includes a rotating drive driven by a motor, a carrier ring connected to and rotated by the drive by two opposed, radial drive pins. The ring performs a radial sliding movement relative to the drive while being rotated thereby. Two opposed, radial carrier guide shafts circumferentially spaced 90° from the drive pins and connecting the ring and an inner cylindrical eccentric body such that the latter may perform a radial sliding movement relative to the ring while being rotated thereby.Type: GrantFiled: June 28, 2004Date of Patent: March 13, 2007Assignee: Novator ABInventors: Mats Stuxberg, Björn Pettersson
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Patent number: 6623015Abstract: A clamping chuck having a central receptacle and a disk arranged around the receptacle and which may be moved from a clamping position, whereby a draw bar inserted into the receptacle is clamped, to a releasing position wherein a draw bar is released from being clamped. The disk has a locking mechanism including a plurality of locking elements which are equally spaced in a circumferential direction. The draw bar is coupled to a brake such that the braking force of the brake is proportional to a pull on the draw bar. Thus, a high axial load on the draw bar causes a high braking force and a low load results in a low braking force.Type: GrantFiled: August 22, 2001Date of Patent: September 23, 2003Assignee: System 3R International ABInventors: Albrecht Paul Schill, Björn Pettersson