Patents by Inventor Magnus Westermark

Magnus Westermark 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: 10823557
    Abstract: The present disclosure provides a geodetic instrument (100) adapted to determine a direction and/or a distance to a target. The geodetic instrument includes an attachment device (120) for attaching the geodetic instrument to a holding arrangement (122); a motorized position arrangement for aiming a line of sight (L) of the geodetic instrument via rotation and/or translation of at least a part of the motorized position arrangement relative to the holding arrangement, and a controller (130). The controller is configured to, upon determining that a setting up of the geodetic instrument is required, provide a control sequence to the motorized positioning arrangement for causing a series of oscillatory rotational and/or translational movements of the at least a part of the motorized positioning arrangement. A method of setting up a geodetic instrument is also provided.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: November 3, 2020
    Assignee: Trimble AB
    Inventors: Magnus Westermark, Thomas Klang
  • Publication number: 20200271446
    Abstract: The present disclosure provides a geodetic instrument (100) adapted to determine a direction and/or a distance to a target. The geodetic instrument includes an attachment device (120) for attaching the geodetic instrument to a holding arrangement (122); a motorized positioning arrangement for aiming a line of sight (L) of the geodetic instrument via rotation and/or translation of at least a part of the motorized position arrangement relative to the holding arrangement, and a controller (130). The controller is configured to, upon determining that a setting up of the geodetic instrument is required, provide a control sequence to the motorized positioning arrangement for causing a series of oscillatory rotational and/or translational movements of the at least a part of the motorized positioning arrangement. A method of setting up a geodetic instrument is also provided.
    Type: Application
    Filed: May 14, 2020
    Publication date: August 27, 2020
    Inventors: Magnus Westermark, Thomas Klang
  • Publication number: 20170348503
    Abstract: An additive gas delivery apparatus for delivery of additive gas to inspirational gas can be set to deliver the additive gas according to a dosing setting in normal therapy, and can be set to deliver according to a backup dosing setting in response disruption of signals representing data for controlling the delivery of additive gas according to the dosing setting in normal therapy. An additive gas delivery apparatus has an inlet for the additive gas and an integrated inlet for gas for oxygenating the patient that are connected to a backup line to mix the additive gas and gas for oxygenating the patient to a set concentration of additive gas in the gas mixture at an integrated backup outlet of the additive gas delivery apparatus.
    Type: Application
    Filed: December 19, 2014
    Publication date: December 7, 2017
    Applicant: MAQUET CRITICAL CARE AB
    Inventors: Magnus WESTERMARK, Lars-Erik NILSSON
  • Patent number: 9182229
    Abstract: Novel solutions for position measurement, including without limitation tools and techniques that can be used for land surveying and in similar applications. One such tool is a greatly enhanced position measurement system that takes the form of a surveying rod with substantial independent functionality, which can be used with or without a total station or similar device.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: November 10, 2015
    Assignee: Trimble Navigation Limited
    Inventors: Christian Grässer, Peter Cornelius Kistler, James Greenberg, Rod Johnson, Magnus Westermark
  • Patent number: 9046362
    Abstract: A method for a measuring instrument is disclosed, for separating the angular deviation of a rotational axis of an instrument body from a corresponding true rotational axis due to imperfections in at least one rolling-element bearing effectuating the rotational mounting of the instrument body into different parts corresponding to type of imperfection. The method comprises detecting rotary position of the at least one rolling-element bearing, and determining angular deviation of the rotational axis from the corresponding true rotational axis in a plurality of rotational positions of the instrument body, wherein the instrument body is rotated a plurality of successive full or partial revolutions about the rotational axis. There is also disclosed a measuring system and a measuring instrument to be used in such a measuring system.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: June 2, 2015
    Assignee: Trimble AB
    Inventors: Magnus Westermark, Mikael Hertzman
  • Patent number: 8575812
    Abstract: A winding for an n-phase electric motor is disclosed. The inventive winding comprises a number of consecutive winding groups of n individual windings, wherein at any point in time an individual winding of a first group exhibits one direction of current flow and wherein at the same point in time a corresponding individual winding of an adjacent group exhibits the opposite direction of current flow. There is also disclosed a method for preparing such winding. It is further disclosed a magnetic unit adapted for such winding, comprising permanent magnets being essentially triangular in cross-section. Further, there is disclosed electric motors using the inventive winding concept, as well as geodetic instruments taking advantage thereof. An electric motor according to the disclosed inventive concept is particularly well suited for direct drive.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: November 5, 2013
    Assignee: Trimble AB
    Inventors: Magnus Westermark, Mikael Hertzman
  • Publication number: 20120326709
    Abstract: A method for a measuring instrument is disclosed, for separating the angular deviation of a rotational axis of an instrument body from a corresponding true rotational axis due to imperfections in at least one rolling-element bearing effectuating the rotational mounting of the instrument body into different parts corresponding to type of imperfection. The method comprises detecting rotary position of the at least one rolling-element bearing, and determining angular deviation of the rotational axis from the corresponding true rotational axis in a plurality of rotational positions of the instrument body, wherein the instrument body is rotated a plurality of successive full or partial revolutions about the rotational axis. There is also disclosed a measuring system and a measuring instrument to be used in such a measuring system.
    Type: Application
    Filed: February 11, 2010
    Publication date: December 27, 2012
    Applicant: TRIMBLE AB
    Inventors: Magnus Westermark, Mikael Hertzman
  • Patent number: 8289528
    Abstract: A position-determining apparatus, such as measuring or surveying instruments, is disclosed. In at least one embodiment, the present invention relates to a tilt sensor for a measuring instrument including a movable housing that is controllably rotatable around a rotational axis, wherein the rotational axis may be positioned so that it deviates from a true vertical axis being parallel with a gravitational axis. In at least one embodiment, the tilt sensor includes a gravity sensitive gradient indicating element arranged such that a surface of the element is positioned orthogonally to the true vertical axis during movements of the measuring instrument, wherein the gravity sensitive gradient indicating element is arranged in connection to the non-rotating base; and a detecting device adapted to produce at least one detecting signal and to receive at least one response signal, wherein a deviation between the rotational axis and the true vertical axis is detectable using the at least one response signal.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: October 16, 2012
    Assignee: Trimble AB
    Inventor: Magnus Westermark
  • Publication number: 20120166137
    Abstract: Novel solutions for position measurement, including without limitation tools and techniques that can be used for land surveying and in similar applications. One such tool is a greatly enhanced position measurement system that takes the form of a surveying rod with substantial independent functionality, which can be used with or without a total station or similar device.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 28, 2012
    Applicant: TRIMBLE NAVIGATION LIMITED
    Inventors: Christian Grässer, Peter Cornelius Kistler, James Greenberg, Rod Johnson, Magnus Westermark
  • Patent number: 7908752
    Abstract: A geodetic instrument is disclosed, wherein an image sensor is used for locating the instrument above a desired point on the ground. The positioning of the image sensor with respect to the instrument vertical rotation axis is determined, or calibrated, using a method where two images are captured at different horizontal rotational positions for the instrument, and where the center pixel of the image sensor is related to the vertical rotation axis by means of image processing. It is also disclosed how reflecting elements, such as prisms, may be used for providing stereoscopic vision that can be used for determining the instrument height above the ground.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: March 22, 2011
    Assignee: Trimble AB
    Inventors: Mikael Hertzman, Magnus Westermark, Set Svanholm
  • Publication number: 20110001986
    Abstract: A position-determining apparatus, such as measuring or surveying instruments, is disclosed. In at least one embodiment, the present invention relates to a tilt sensor for a measuring instrument including a movable housing that is controllably rotatable around a rotational axis, wherein the rotational axis may be positioned so that it deviates from a true vertical axis being parallel with a gravitational axis. In at least one embodiment, the tilt sensor includes a gravity sensitive gradient indicating element arranged such that a surface of the element is positioned orthogonally to the true vertical axis during movements of the measuring instrument, wherein the gravity sensitive gradient indicating element is arranged in connection to the non-rotating base; and a detecting device adapted to produce at least one detecting signal and to receive at least one response signal, wherein a deviation between the rotational axis and the true vertical axis is detectable using the at least one response signal.
    Type: Application
    Filed: March 7, 2008
    Publication date: January 6, 2011
    Applicant: TRIMBLE AB
    Inventor: Magnus Westermark
  • Patent number: 7765084
    Abstract: In a position control arrangement for controlling the rotational position of a movable unit, especially for a surveying instrument, an electric motor is arranged to rotate the movable unit around an axis of rotation, and there are controllers for enabling the motor to stop the movable unit in a desired rotational position. The motor is a direct drive motor, the shaft of which forms the axis of rotation for the movable unit, and the motor is arranged to selectively operate in either a first, normal mode for rotating the movable unit to a desired position, or in a second, friction mode for providing resistance to a forced rotation of the movable unit from a predetermined position to a new position. A control unit detects the presence of a forced rotation and automatically changes the mode of operation in response thereto.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: July 27, 2010
    Assignee: Trimble A.B.
    Inventors: Magnus Westermark, Mikael Hertzman, Ulf Berg, Thomas Klang
  • Publication number: 20100037474
    Abstract: A geodetic instrument is disclosed, wherein an image sensor is used for locating the instrument above a desired point on the ground. The positioning of the image sensor with respect to the instrument vertical rotation axis is determined, or calibrated, using a method where two images are captured at different horizontal rotational positions for the instrument, and where the center pixel of the image sensor is related to the vertical rotation axis by means of image processing. It is also disclosed how reflecting elements, such as prisms, may be used for providing stereoscopic vision that can be used for determining the instrument height above the ground.
    Type: Application
    Filed: December 27, 2006
    Publication date: February 18, 2010
    Inventors: Mikael Hertzman, Magnus Westermark, Set Svanholm
  • Patent number: 7634381
    Abstract: In a position control arrangement for controlling the rotational position of a movable unit, especially for a surveying instrument, an electric motor is arranged to rotate the movable unit around an axis of rotation, and there are controllers for enabling the motor to stop the movable unit in a desired rotational position. The motor is a direct drive motor, the shaft of which forms the axis of rotation for the movable unit, and the motor is arranged to selectively operate in either a first, normal mode for rotating the movable unit to a desired position, or in a second, friction mode for providing resistance to a forced rotation of the movable unit from a predetermined position to a new position. A control unit detects the presence of a forced rotation and automatically changes the mode of operation in response thereto.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: December 15, 2009
    Assignee: Trimble A.B.
    Inventors: Magnus Westermark, Mikael Hertzman, Ulf Berg, Thomas Klang
  • Patent number: 7589313
    Abstract: An absolute optical encoder apparatus for measuring an absolute position comprises an optical disk or scale element (100) having both incremental and absolute code tracks formed thereon. In the embodiment, a photoemitter light source (110, 111) illuminates the tracks onto a CCD area array sensor (115, 116) such that an image is formed from a pixel matrix having of rows and columns. Two detector line rows (410, 420) of the pixel matrix are each read out from the portion of the matrix comprising the incremental and absolute code tracks respectively. Inaccurate mounting of the disk or scale element can cause fluctuations in the period of the code tracks resulting from the rotation of the disk or movement of the scale element. The mounting inaccuracies are compensated for either by matching the spatial frequency by dynamically changing row of detector line read from the incremental image of the code track or by altering the numerical value of the pattern period used in the Fourier phase algorithm.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: September 15, 2009
    Assignee: Trimble AB
    Inventors: Mikael Nordenfelt, Mikael Hertzman, Staffan Palm, Magnus Westermark
  • Publication number: 20090133273
    Abstract: In a position control arrangement for controlling the rotational position of a movable unit, especially for a surveying instrument, an electric motor is arranged to rotate the movable unit around an axis of rotation, and there are controllers for enabling the motor to stop the movable unit in a desired rotational position. The motor is a direct drive motor, the shaft of which forms the axis of rotation for the movable unit, and the motor is arranged to selectively operate in either a first, normal mode for rotating the movable unit to a desired position, or in a second, friction mode for providing resistance to a forced rotation of the movable unit from a predetermined position to a new position. A control unit detects the presence of a forced rotation and automatically changes the mode of operation in response thereto.
    Type: Application
    Filed: November 10, 2008
    Publication date: May 28, 2009
    Inventors: Magnus Westermark, Mikael Hertzman, Ulf Berg, Thomas Klang
  • Publication number: 20090039726
    Abstract: A winding for an n-phase electric motor is disclosed. The inventive winding comprises a number of consecutive winding groups of n individual windings, wherein at any point in time an individual winding of a first group exhibits one direction of current flow and wherein at the same point in time a corresponding individual winding of an adjacent group exhibits the opposite direction of current flow. There is also disclosed a method for preparing such winding. It is further disclosed a magnetic unit adapted for such winding, comprising permanent magnets being essentially triangular in cross-section. Further, there is disclosed electric motors using the inventive winding concept, as well as geodetic instruments taking advantage thereof. An electric motor according to the disclosed inventive concept is particularly well suited for direct drive.
    Type: Application
    Filed: July 7, 2005
    Publication date: February 12, 2009
    Inventors: Magnus Westermark, Mikael Hertzman
  • Publication number: 20060243895
    Abstract: An absolute optical encoder apparatus for measuring an absolute position comprises an optical disk or scale element (100) having both incremental and absolute code tracks formed thereon. In the embodiment, a photoemitter light source (110, 111) illuminates the tracks onto a CCD area array sensor (115, 116) such that an image is formed from a pixel matrix having of rows and columns. Two detector line rows (410, 420) of the pixel matrix are each read out from the portion of the matrix comprising the incremental and absolute code tracks respectively. Inaccurate mounting of the disk or scale element can cause fluctuations in the period of the code tracks resulting from the rotation of the disk or movement of the scale element. The mounting inaccuracies are compensated for either by matching the spatial frequency by dynamically changing row of detector line read from the incremental image of the code track or by altering the numerical value of the pattern period used in the Fourier phase algorithm.
    Type: Application
    Filed: April 21, 2004
    Publication date: November 2, 2006
    Inventors: Mikael Nordenfelt, Mikael Hertzman, Staffan Palm, Magnus Westermark
  • Publication number: 20050187734
    Abstract: In a position control arrangement for controlling the rotational position of a movable unit, especially for a surveying instrument, an electric motor is arranged to rotate the movable unit around an axis of rotation, and there are controllers for enabling the motor to stop the movable unit in a desired rotational position. The motor is a direct drive motor, the shaft of which forms the axis of rotation for the movable unit, and the motor is arranged to selectively operate in either a first, normal mode for rotating the movable unit to a desired position, or in a second, friction mode for providing resistance to a forced rotation of the movable unit from a predetermined position to a new position. A control unit detects the presence of a forced rotation and automatically changes the mode of operation in response thereto.
    Type: Application
    Filed: March 18, 2005
    Publication date: August 25, 2005
    Inventors: Magnus Westermark, Mikael Hertzman, Ulf Berg, Thomas Klang
  • Patent number: D786717
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: May 16, 2017
    Assignee: Trimble AB
    Inventors: Robin Grieves, Gerard Scanlon, Magnus Westermark, Georgios Gatsios