Level (i.e., Surveyor's Type) Patents (Class 33/290)
  • Patent number: 11035751
    Abstract: A positioning device for arrangement of a basin false bottom in ocean engineering comprises a laser transmitting system, a rotating platform system, and a control and calculation system. The laser transmitting system comprises a laser transmitter used for providing laser beams. The rotating platform system comprises a two-degree-of-freedom rotating platform used for carrying the laser transmitter and making the laser beams have spatially arbitrary directivity. The control and calculation system is used for calculating, according to given coordinates, the angle by which the two-degree-of-freedom rotating platform needs to rotate, controlling rotation of the two-degree-of-freedom rotating platform, and making the laser beams transmitted by the laser transmitter accurately indicate the given coordinates at the basin false bottom.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: June 15, 2021
    Assignee: Shanghai Jiao Tong University
    Inventors: Jianmin Yang, Xinliang Tian, Xiaoxian Guo, Longfei Xiao, Tao Peng
  • Patent number: 11015932
    Abstract: A surveying device including a base defining a base axis, a support structure rotatable around the base axis and defining a rotation axis, a light emitting unit emitting light and a light receiving unit for detecting reflected light. A rotation unit is mounted on the support structure for emitting and receiving light in defined directions, wherein the rotation unit comprises a rotation body rotatable around the rotation axis including a scanning mirror arranged tilted relative to the rotation axis. An imaging unit for capturing an image of a scanning region is provided. The imaging unit comprises a camera fixedly arranged on the support structure, the rotation body comprises at least one reflecting deflecting surface assigned to the camera. The imaging unit and the rotation body are arranged so that the field of view comprises a defined field angle around the rotation axis.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: May 25, 2021
    Assignee: HEXAGON TECHNOLOGY CENTER GMBH
    Inventors: Stefan Martin Benjamin Gächter Toya, Thomas Jensen, Andreas Schwendener, Tim Mayer
  • Patent number: 11009607
    Abstract: A first surveying unit comprises a frame in a horizontally rotatable manner, a telescope unit in a vertically rotatable manner, a first angle measuring unit and a first distance measuring unit which measure a prism, wherein the second surveying unit comprises a scanning mirror which rotatably irradiates a laser beam and a second angle measuring unit which detects a rotation angle of the scanning mirror, wherein a target instrument comprises a pole installed at a measuring point, the prism has a known positional relationship with a lower end of the pole, and a target plate mounted on the pole, wherein an arithmetic control module scans a laser beam, calculates a measuring point direction vector based on point cloud data of the target plate, and calculates a three-dimensional coordinate of the measuring point based on an optical center of the prism, the measuring point direction vector, and the positional relationship.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: May 18, 2021
    Assignee: TOPCON Corporation
    Inventor: Nobuyuki Nishita
  • Patent number: 10921430
    Abstract: A target instrument has an illuminating lamp, wherein a total station has an optical axis deflector capable of deflecting a distance measuring optical axis, a projecting direction detecting module for performing an angle measurement of the distance measuring optical axis, an image pickup unit, and an arithmetic control module for controlling a deflecting action of the optical axis deflector and a distance measuring action of a distance measuring unit, wherein the arithmetic control module is configured to detect an illumination light from an image acquired by the image pickup unit, to acquire a direction of the illuminating lamp based on a detection result, to make the optical axis deflector to scan with a distance measuring light around the acquired direction and to perform a distance measurement and an angle measurement along a scanning path.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: February 16, 2021
    Assignee: TOPCON Corporation
    Inventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
  • Patent number: 10895472
    Abstract: A method for checking a rotating laser for cone errors using a laser receiver, where the rotating laser projects a laser beam which can rotate in a horizontal plane about an axis of rotation and the horizontal plane spans from a first horizontal axis to a second horizontal axis. The rotating laser is arranged in a horizontal position at a first location and at a second location between a first measurement surface and a second measurement surface. The rotating laser having, at the first location a first measurement distance, and having, at the second location a second measurement distance, to the second measurement surface.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: January 19, 2021
    Assignee: Hilti Aktiengesellschaft
    Inventor: Sasha Lukic
  • Patent number: 10830905
    Abstract: A system for vertical accuracy improvement includes a reference station, a rover, and a base station in communication with the reference station and the rover. The base station includes a GNSS antenna, an actuator coupled to the GNSS antenna, a wireless transceiver, a processor, and non-transitory computer readable media comprising instructions executable by the processor. The instructions may be executed to cause the base station to receive a first vertical error from the reference station. The base station may further be configured to determine a second vertical position at which the first vertical error is reduced, and adjust the GNSS antenna to be in the second vertical position. The base station may further be configured to generate correction data based at least in part on the phase of the carrier wave signal at the second vertical position, and transmit the correction data to the rover.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: November 10, 2020
    Assignee: Trimble Inc.
    Inventor: Michael Cash
  • Patent number: 10761785
    Abstract: One embodiment provides a device comprising at least one movable unit, at least one sensor, a printer, at least one processor, and a non-transitory processor-readable memory device storing instructions that when executed by the at least one processor causes the at least one processor to perform operations. The operations include receiving layout and design information, receiving, from the at least one sensor, contextual information indicative that the at least one movable unit is in direct contact with a surface, and triggering the printer to print one or more markings on the surface as the at least one movable unit moves along the surface based on the layout and design information.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: September 1, 2020
    Assignee: Homer T. Hayward Lumber Co.
    Inventor: Rudi H. Lokkart
  • Patent number: 10697796
    Abstract: A method for checking and/or calibrating a vertical axis of a rotating laser which projects a first laser beam that can rotate about an axis of rotation and a second, stationary laser beam, using a laser receiver. The rotating laser is positioned at a measurement distance from the laser receiver, the rotating laser being oriented in a vertical position, and the laser receiver having a transverse arrangement.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: June 30, 2020
    Assignee: Hilti Aktiengesellschaft
    Inventors: Sasha Lukic, Guenter Sanchen
  • Patent number: 10684129
    Abstract: A method for checking and/or calibrating a first or a second horizontal axis of a rotating laser, which emits a laser beam rotating about an axis of rotation, with the aid of a laser receiver. The rotating laser is positioned at a measuring distance to the laser receiver, the rotating laser being aligned in the horizontal position and the laser receiver being aligned in a longitudinal arrangement.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: June 16, 2020
    Assignee: Hilti Aktiengesellschaft
    Inventors: Sasha Lukic, Guenter Sanchen
  • Patent number: 10281271
    Abstract: The invention provides a surveying instrument, which comprises a frame unit provided capable of rotating horizontally via a horizontal rotation shaft, a telescope unit provided capable of rotating vertically via a vertical rotation shaft in a recessed portion formed in the frame unit, a vertical rotation driving unit in which a vertical output shaft is connected to the vertical rotation shaft, and a whirl-stop unit provided on an outer side of a side plate of the frame unit along the side plate and connecting the vertical rotation driving unit and the frame unit to each other.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: May 7, 2019
    Assignee: TOPCON Corporation
    Inventors: Yoshihiko Tokuda, Satoshi Nakamura, Yosuke Okudaira
  • Patent number: 10234547
    Abstract: A sensor comprises a detector defining a zone axis and adapted to receive a signal from within a zone around the zone axis and to generate an electrical signal, and a display module defining a display plane and adapted to display a pattern in the display plane based on the electrical signal, the display being oriented along an axis forming an angle with the zone axis such that the pattern is visible both from a direction parallel to the zone axis and from a direction perpendicular to the zone axis. In certain examples, the angle is about 45°, 40°-50°, 35°-55° or 25°-65°.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: March 19, 2019
    Assignee: BANNER ENGINEERING CORPORATION
    Inventors: John Alyn Stecker, Matthew Alexander Payne
  • Patent number: 9964417
    Abstract: Calibration device and calibration method for calibration of a laser beam horizontal trueness testing device whereby the calibration device comprises an elongated support body for support of an elongated laser housing with a longitudinal axis and a laser source, whereby a laser beam is emittable in a direction of the longitudinal axis. According to the calibration method, calibration parameters are determined based on at least three impinging positions of the laser beam of the laser housing for at least two different rotational positions of the laser housing in a first face and at least one position of the laser housing in a second opposing face.
    Type: Grant
    Filed: July 16, 2016
    Date of Patent: May 8, 2018
    Assignee: LEICA GEOSYSTEMS AG
    Inventors: Charles Leopold Elisabeth Dumoulin, Katherine Broder
  • Patent number: 9874438
    Abstract: An angle square adapter including: a base, where base is attachable to a straight ruler; a series of holes over a top surface of the base; an alignment line between the holes; a laser assembly mountable on the base, where the laser assembly includes a circular measurement portion, a nose portion and a laser mounted on the nose portion; and a measurement scale along one edge of the base, where measurement scale assists in angle alignment. The series of holes preferably includes three holes aligned in a straight line. An angle scale is provided on the perimeter of the circular measurement portion. The angle square adapter may also include a plurality of magnets along one side of the base and a lanyard attached to the base.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: January 23, 2018
    Inventor: Harold W. Graddy
  • Patent number: 9739636
    Abstract: A calibration device to calibrate precise horizontality of a light emitting element includes a retaining rack, a microprocessor, a regulating member, two driven members, and two photo sensing members. The regulating member drives the light emitting element, the two driven members are on the retaining rack, and the microprocessor controls the driven members to move linearly. The photo sensing members detect light transmitted and data as to the vertical distance between two driven members, and vertical distance between the photo sensing member and the two driven members, is stored. The microprocessor calculates the moving distance of the photo sensing members carried by the driven members based on the signals of light detected, and further calculates declination of the light emitting element. The microprocessor can adjust the orientation of light emitting element.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: August 22, 2017
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Te-Hua Lee, Ming-Chieh Chang
  • Patent number: 9733082
    Abstract: The invention provides a tilt detecting system comprising, a surveying instrument having a distance measuring function and a line laser projecting unit installed as horizontally rotatable for projecting a vertical line laser, and a photodetection device having at least two photodetection units provided at a known interval, a target with a retro-reflectivity and an arithmetic unit, wherein the line laser projecting unit is rotated, each of the photodetection units are made to scan the line laser and the arithmetic unit detects a tilting angle of the photodetection device based on a deviation between a photodetection time moment of each photodetection unit and the distance measurement result of the target of the surveying instrument.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: August 15, 2017
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Kaoru Kumagai, Fumio Ohtomo
  • Patent number: 9671503
    Abstract: A survey instrument conveyance is disclosed. One embodiment includes a mobile platform having a set of wheels attached thereto. In addition, a mechanical coupling assembly is used to couple a survey instrument to the mobile platform. An adjustable position mechanism is coupled to the mechanical coupling assembly to raise and lower the survey instrument relative to the mobile platform.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: June 6, 2017
    Assignee: Trimble Inc.
    Inventors: Kenneth Fortune, James M. Janky, Michael V. McCusker
  • Patent number: 9453729
    Abstract: Layout equipment for locating a plurality of positions at a construction site is provided. The layout equipment includes a laser target rod, a self-leveling laser transmitter, and a remote control device. The rod has an elongated rod body including retroreflective material extending substantially the entire length of the body. The laser transmitter projects a beam of laser light, and receives laser light reflected from the rod. The laser transmitter includes a first wireless communication unit, and a transmitter control. The transmitter control is responsive to the first wireless communication unit. The remote control device includes a second wireless communication unit that communicates wirelessly with to the laser transmitter to cause the laser transmitter to project the beam of laser light toward a position at the construction site, and signals the user of the layout equipment when the rod has been placed at the position.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: September 27, 2016
    Assignee: Trimble Navigation Limited
    Inventor: Kent Kahle
  • Patent number: 9341474
    Abstract: Some embodiments of the invention relate to a rotation unit for a surveying device, in particular a laser scanner for optically scanning an environment and such a surveying device. The surveying device has a rotation unit having a rotation mirror, for deflecting an emission light beam and a reception light beam, and a rotation body implemented as a cylinder having a on a beveled, free end. The rotation body is implemented as a hollow cylinder having a cylinder bottom and a beveled cylinder wall on its free end. The hollow cylinder is connected coaxially with respect to its cylinder axis in a rotationally-fixed manner to a motor-driven shaft via the cylinder bottom. The rotation mirror is fastened in the region of its free end to the cylinder wall of the hollow cylinder so it is supported thereby.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: May 17, 2016
    Assignee: HEXAGON TECHNOLOGY CENTER GMBH
    Inventors: Karl Helmut Plangger, Tim Mayer, Jochen Scheja
  • Patent number: 9329028
    Abstract: A spherically mounted retroreflector (SMR) having an embedded temperature sensor and a socket for attaching to an electrical connector.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: May 3, 2016
    Assignee: FARO TECHNOLOGIES, INC.
    Inventors: Robert E. Bridges, Kenneth Steffey
  • Patent number: 9200900
    Abstract: A construction laser system includes a rotating laser with self-leveling and a laser receiver. The system performs a self-leveling recalibration process by which-the self-leveling is checked automatically for quality and the related calibration data is updated automatically. A sequence of N calibration measurements is defined, where N is greater than or equal to three. The calibration measurements are obtained by the rotating laser and the laser receiver with a respective azimuthal alignment of the stand while the position of the laser receiver remains unchanged. As part of each calibration measurement, one output signal dependent on the laser beam impingement position is detected. The respective output signals or specified impingement positions are evaluated in pairs correlated with the respective I-th azimuthal alignments. The quality of the beam leveling functionality is thereby checked. If the requirements are not met, the previously stored calibration data can then be updated automatically.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: December 1, 2015
    Assignee: LEICA GEOSYSTEMS AG
    Inventors: Thilo Fessler, Bernd Stöckel, Thomas Ammer
  • Patent number: 9194698
    Abstract: A geodetic device comprises three device components, two axes of rotation, and two angle sensors such that the device components are rotatable with respect to each other and their rotational positions are determinable, and an inclination sensor system. A method for determining a characteristic of the device comprises an alignment of the second device component with respect to the first device component into a plurality of different rotational positions, whereby in each rotational position of the plurality of rotational positions a measurement value is determined from the first angle sensor, a measurement value is determined from the second angle sensor, and a measurement value is determined for the orientation of the inclination sensor system.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: November 24, 2015
    Assignee: Trimble Jena GmbH
    Inventors: Michael Vogel, Andreas Glimm
  • 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
  • Publication number: 20150096181
    Abstract: Some embodiments of the invention relate to a rotation unit for a surveying device, in particular a laser scanner for optically scanning an environment and such a surveying device. The surveying device has a rotation unit having a rotation mirror, for deflecting an emission light beam and a reception light beam, and a rotation body implemented as a cylinder having a on a beveled, free end. The rotation body is implemented as a hollow cylinder having a cylinder bottom and a beveled cylinder wall on its free end. The hollow cylinder is connected coaxially with respect to its cylinder axis in a rotationally-fixed manner to a motor-driven shaft via the cylinder bottom. The rotation mirror is fastened in the region of its free end to the cylinder wall of the hollow cylinder so it is supported thereby.
    Type: Application
    Filed: October 9, 2014
    Publication date: April 9, 2015
    Inventors: Karl Helmut PLANGGER, Tim MAYER, Jochen SCHEJA
  • Patent number: 8997361
    Abstract: A laser measurement system operates to measure portions of a vehicle, such as a vehicle frame. The measurements are used, for example, to determine if the portions of the vehicle are bent or damaged. The measurement system includes a laser scanner and at least one target assembly that can be connected to a point of the vehicle. The laser scanner emits a laser beam that is detected by the target. Time and laser position information detected by the target are used to determine the location of the target, as well as the location of the point of the vehicle. The location of the point is then compared to an original location of the point to determine if damage has occurred.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: April 7, 2015
    Assignee: Infinity Laser Measuring LLC
    Inventors: Robin L. Knoke, Matt J. Brunk, Mark W. Schulz, Eric J. Krause, Lee G. Macklem, William M. Roth, Daniel Darst
  • Publication number: 20150059194
    Abstract: Provided are examples of a hands-free level to quickly, accurately, and efficiency level and plumb a wide range of objects regardless of shape. The level includes a stationary component, an adjustable component, a level device attached to the stationary component/adjustable component, and a cord. The cord includes a J-shaped terminus that abuts the adjustable component. Advancing the cord urges the adjustable component towards the stationary component. Complementary locking teeth on the cord and stationary component lock the adjustable component in place and clamps the hands-free level to an object. This lets a user use two hands to hold and move the object while simultaneously checking the object for plumb and/or level.
    Type: Application
    Filed: August 26, 2014
    Publication date: March 5, 2015
    Applicant: THE BENY, LLC
    Inventor: Michael John Esposito
  • Publication number: 20150052765
    Abstract: A surveying instrument includes a pedestal provided with a guide light irradiation unit provided with a light source to irradiate with guide light indicating a collimation direction of the surveying instrument to an operator, a tracking optical system which locks a target, a ranging optical system which ranges a distance to the target, and a control circuit which calculates surveying data by a ranging result of the ranging optical system, and a transmitting and receiving unit which receives survey setting point data regarding a survey setting operation and sends the surveying data obtained by the control circuit.
    Type: Application
    Filed: August 22, 2014
    Publication date: February 26, 2015
    Applicant: KABUSHIKI KAISHA TOPCON
    Inventors: Kaoru KUMAGAI, Minoru CHIBA, Masaru MURAKI
  • Publication number: 20140373370
    Abstract: A laser surveying device includes a rotatable and tiltable laser head in a housing to rotate about a rotational axis set in a certain direction and project a laser beam around and a tilt angle detector to detect a tilt angle of the laser head relative to the housing. The tilt angle detector includes a pattern plate on which a certain pattern is formed, provided in one of the laser head and the housing, light receiving elements arranged in the other of the laser head and the housing at different positions opposite to positions of the pattern plate to receive light beams reflected by the pattern plate, and a determiner to determine a direction and an amount of tilt of the laser head on the basis of a light receiving amount of each of the light receiving elements.
    Type: Application
    Filed: June 16, 2014
    Publication date: December 25, 2014
    Applicant: Kabushiki Kaisha TOPCON
    Inventors: Junichi KODAIRA, Fumihiko KAMIZONO
  • Patent number: 8914985
    Abstract: The present invention relates to a light beam emission device for a measuring device for changing the optical properties of a light beam as well as to a corresponding method and to a measuring instrument which uses the light beam emission device, wherein the optical properties of the light beam can be changed automatically thereby from one state to another state.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: December 23, 2014
    Assignee: Trimble Kaiserslautern GmbH
    Inventors: Gereon Westermeyer, Christian Ritter
  • Publication number: 20140338205
    Abstract: An electronic light detection circuit for detecting an intensity modulated light signal on a photosensitive element under backlight condition. The circuit comprises the photosensitive element, in particular as a light position detector for detecting a striking position of the light signal spot within a detection window, an amplifier with high input resistance connected to an output of the photosensitive element and a backlight suppression circuitry. The backlight suppression circuitry is connected to the output of the photosensitive element in parallel to the amplifier and comprises an electronic active resonator structure. The active resonator, structure is designed in such a way to provide a load impedance to an output of the photosensitive element with a low load impedance for low frequencies for suppression of natural and artificial backlight-saturation of the photosensitive element and a high load impedance at the frequency of the intensity modulated light signal.
    Type: Application
    Filed: August 14, 2012
    Publication date: November 20, 2014
    Applicant: LEICA GEOSYSTEMS AG
    Inventor: Charles Leopold Elisabeth Dumoulin
  • Patent number: 8881390
    Abstract: A process for installing electrical box, wiring, and receptacles or switch simultaneously that allows electricians to perform all 3 tasks at one time without the need to return to install receptacles or switch after wallboard is installed comprises: Housing with built-in laser guide and attached magnetic spacers for metal studs or wooden studs that allow for correct alignment of receptacle or switch for applicable wallboard thickness used.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: November 11, 2014
    Inventor: Frank DiLorenzo
  • Patent number: 8881412
    Abstract: A survey setting point indicating device comprises a prism device 5 and a support member, and in the survey setting point indicating device, said prism device comprises a laser emitting device 16 for emitting a laser beam 17, an omnidirectional prism 9 having a cavity 14 in a center, a mirror 18 which is provided in said cavity, is rotatable about two axes crossing at right angles, and can deflect, in an arbitrary direction, said laser beam emitted from said laser emitting device, and a control unit 19 for controlling a posture or a rotation of said mirror, and said support member supports said prism device, and said laser beam is configured to attach (transfer) a position of a center of said prism device to a required surface.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: November 11, 2014
    Assignee: Kabushiki Kaisha TOPCON
    Inventor: Nobuyuki Nishita
  • Publication number: 20140304994
    Abstract: Some embodiments of the invention relate to a rotation laser and a method for operating a rotation laser. The rotation laser may be provided with a laser light source for generating a laser beam, a deflection means rotatable about a rotation axis and serving for the directional emission of the laser beam, and an optical system comprising one or more lenses for manipulating the laser beam. In some embodiments, at least one of the lenses is a lens which is deformable in a targeted manner by actuators. In some embodiments, a control unit is included for manipulating the at least one lens. In some embodiments, the at least one lens has at least four actuators which are drivable by the control unit and/or which are arranged in a manner distributed along a circumference of the lens.
    Type: Application
    Filed: April 11, 2014
    Publication date: October 16, 2014
    Applicant: Hexagon Technology Center GmbH
    Inventor: Charles Leopold Elisabeth DUMOULIN
  • Patent number: 8857068
    Abstract: A rotary laser irradiating system, comprising a light emitting unit (41, 42) for emitting a laser beam, a rotator for forming a reference plane by projecting the laser beam by rotary irradiation, a tilt driving unit (21) for tilting the reference plane, a control unit (35) for controlling a light emission of the light emitting unit, and a tilted axis indicating means (35, 44) for turning off the laser beam so as to form a tilted reference axis indicating range in a tilt setting reference axis direction for setting a tilt.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: October 14, 2014
    Assignee: Kabushiki Kaisha TOPCON
    Inventor: Jun-ichi Kodaira
  • Publication number: 20140259709
    Abstract: The invention provides a surveying instrument (1) which has a measuring unit comprises an operation control panel (4) rotatably mounted on the measuring unit with vertical axis as the center with respect to the measuring unit, and a relative angle detecting means for detecting a relative angle of the operation control panel and the measuring unit, wherein the operation control panel is so arranged that a command is issued to relatively rotate the measuring unit based on the relative angle detected by the relative angle detecting means.
    Type: Application
    Filed: March 5, 2014
    Publication date: September 18, 2014
    Applicant: KABUSHIKI KAISHA TOPCON
    Inventors: Kaoru Kumagai, Jun-ichi Kodaira
  • Patent number: 8826552
    Abstract: A survey setting point indicating device comprises a support member 3 which can be tilted with respect to a vertical direction, a connecting member which can be freely tilted with respect to the support member and hangs vertically downward by gravity, a laser pointer 7 which is provided at a lower end of the connecting member, is concentric with an axis of the connecting member and emits a laser beam vertically downward, and a reflector 5 provided such that the axis of the connecting member passes through a center of the reflector.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: September 9, 2014
    Assignee: Kabushiki Kaisha TOPCON
    Inventor: Nobuyuki Nishita
  • Patent number: 8826553
    Abstract: Layout equipment for locating a plurality of positions at a construction site, and a method of using the layout equipment, contemplate a laser target rod having an elongated rod body and including retroreflective material on the rod body. The retroreflective material extends substantially the entire length of the rod body, and has scale markings visible thereon. A self-leveling laser transmitter at a known position projects a beam of laser light horizontally, and receives laser light reflected from the laser target rod. A remote control device signals the user of the layout equipment when the rod has been placed at a selected one of the plurality of positions. The layout equipment may also be used to determine relative locations in a previously built structure.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: September 9, 2014
    Assignee: Trimble Navigation Limited
    Inventor: Kent Kahle
  • Patent number: 8826554
    Abstract: A baluster level having a level body defining a view port, a proximal end and a distal end, a plunger slideably secured within the level body, and a leveling device. A method for installing leveled balusters having the steps of compressing a plunger, inserting the level between floor and banister, releasing compression on the plunger, leveling, marking the floor and banister, compressing the plunger and removing the level.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: September 9, 2014
    Inventor: Ronald Bariteau
  • Patent number: 8826550
    Abstract: A north-referenceable goniometer for azimuthal orientation determination of a sighting device has a base, a rotary part, a rotation angle encoder for determining a rotational position of the rotary part about an upright axis, a gyroscope fixed on the rotary part and having a measuring device oriented orthogonally to the upright axis for determining a component of the Earth rotation vector, and an evaluation unit for determining the azimuthal angle of the geographical north pole. The goniometer also includes an acceleration sensor, and the evaluation unit is formed such that, using the evaluation unit, the determined component of the Earth rotation vector is corrected by a sink rate of the goniometer, determined with the aid of the acceleration sensor, and a systematic measurement error of the gyroscope is corrected by determining measurement values of the component of the Earth rotation vector in at least three different rotational positions.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: September 9, 2014
    Assignee: Vectronix AG
    Inventor: Silvio Gnepf
  • Patent number: 8806767
    Abstract: A laser instrument and a method for adjusting the laser power is disclosed. The laser instrument includes a laser device which generates a laser beam and a rotating device which moves the laser device back and forth around an axis of rotation between a first turning point and a second turning point. The laser beam generates a laser line between a first end point and a second end point on a target surface. A control device is provided which adjusts the laser power of the laser beam as a function of a rotation angle and/or an angular velocity of the rotating device.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: August 19, 2014
    Assignee: Hilti Aktiengesellschaft
    Inventors: Andreas Winter, Sasha Lukic, Lieu-Kim Dang
  • Publication number: 20140190025
    Abstract: A surveying appliance for surveying targets has a targeting unit and a remote control unit for prompting changes in the orientation of the targeting unit, equipped with measurement functionality for determining a three-dimensional orientation of the remote control unit or for determining movements by the remote control unit. The surveying appliance also has an evaluation and control unit. The extent or speed of the changes in the orientation of the targeting unit can be scaled to corresponding changes in an orientation or speed of change of orientation of the remote control unit such that at least two targeting modes having different levels of transmission ratio are provided. The surveying appliance can be used with corresponding handheld, moving remote control units, computer program products for providing, controlling and performing a targeting functionality for the surveying appliance and methods for tracking and surveying targets using the surveying appliance.
    Type: Application
    Filed: July 27, 2012
    Publication date: July 10, 2014
    Applicant: LEICA GEOSYSTEMS AG
    Inventors: Kurt Giger, Christian Schorr, Asif Iqbal
  • Patent number: 8720074
    Abstract: A method of determining an elevation of a point relative to a leveling instrument includes sending a first signal from a controller to the leveling instrument using a wireless link. The first signal indicates to the leveling instrument to automatically align an alignment unit of the leveling instrument with a reference target of a leveling staff. The method also includes receiving a second signal at the controller using the wireless link. The second signal is sent from the leveling instrument and indicates that the alignment unit is aligned with the reference target. The method also includes sending a third signal from the controller to the leveling instrument using the wireless link. The third signal indicates to the leveling instrument to automatically determine the elevation of the point relative to the leveling instrument.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: May 13, 2014
    Assignee: Trimble Navigation Limited
    Inventor: Miguel Amor
  • Publication number: 20140123508
    Abstract: A robotic laser-pointing apparatus has an instrument center, a first rotation axis, a second rotation axis, and a pointing axis, with the first rotation axis, the second rotation axis and the pointing axis in a known relationship to the instrument center. A laser source provides a pointing-laser beam along the pointing axis. A pointing drive system aims the laser beam by rotating the pointing axis about the instrument center in response to a pointing-direction control. Focusing optics having a focusing-optics drive serve to focus the pointing-laser beam in response to a focusing-optics control. A processor, responsive to target-position information, generates the pointing-direction control and the focusing-optics control. Some embodiments include an electronic-distance-measurement system having a measurement beam. Some embodiments provide for compensation of aiming errors of the pointing-laser beam and the measurement beam.
    Type: Application
    Filed: March 9, 2013
    Publication date: May 8, 2014
    Applicant: Trimble A.B.
    Inventors: Christian Graesser, Robert Miller, Mikael Nordenfelt
  • Publication number: 20140075767
    Abstract: The disclosure proceeds from a system with a measurement bar and a measurement device, having at least one computation unit, an inclination measurement means and an electronic distance measurement means. The disclosure proposes that the system have a coupling apparatus which is provided for coupling the measurement bar and the measurement device such that they can be separated by an operator.
    Type: Application
    Filed: January 9, 2012
    Publication date: March 20, 2014
    Inventors: Michael Frank, Peter Wolf, Nicolas Gros, Heiko Fuellemann, Iiyes Ben Hassine
  • Patent number: 8670130
    Abstract: The invention provides a laser scanner, comprising a main unit and a rotating unit rotatably mounted on the main unit, wherein the rotating unit has a deflection member for projecting the pulsed beams by deflecting the beams perpendicularly to center axis of the rotating unit. The main unit comprises a plurality of light emitting sources disposed in a two-dimensional arrangement for emitting a plurality of pulsed beams, an optical system for projecting and receiving the pulsed beams, a rotation angle detecting unit, a plurality of photodetectors for receiving a reflection light from an object via the deflection member and being disposed respectively at positions conjugate to the light emitting sources, a distance measuring unit for measuring a distance based on a photodetection signal from the photodetector, and a control arithmetic unit for calculating projecting directions of the pulsed laser beams projected from the deflection member.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: March 11, 2014
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Fumio Ohtomo, Kaoru Kumagai, Minoru Chiba
  • Publication number: 20140026427
    Abstract: The tool is V shaped constructed of aluminum. A ninety degree ledge is located on the bottom side extending across the center of the tool, a scribing channel located in the center of the bottom and top, two leveling screws, four ports (screws can be moved between ports) two located on the front right and left side of the laser, and two located on the right and left side on the top of the unit, three leveling vials 5/16×? one located on the front right of the laser and two located on the top, left side and right side and one (line not dot) three volt brass housed infrared optic and laser diode with attached driver 635 nm 8 mm×13 mm. It is powered by two 1.5 volt batteries encased within the unit located on the top side secured with two screws, On/Off switch located on top side.
    Type: Application
    Filed: July 26, 2012
    Publication date: January 30, 2014
    Inventor: Brian Phillip Travis
  • Patent number: 8567078
    Abstract: A laser instrument is disclosed. The laser instrument having a laser unit, a drive device for tilting the laser unit, and a damper device between the drive device and the laser unit.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: October 29, 2013
    Assignee: Hilti Aktiengesellschaft
    Inventors: Barth Stefan, Manfred Ammann
  • Publication number: 20130276316
    Abstract: A plumbing path guide apparatus comprising a plurality of interconnectable elements, said elements interconnectable by means of female and male connectors configured to slidingly mate with each other, wherein a perceived plumbing path is erectable between at least two extant points whereby measurements of extant pipe required to plumb said plumbing path are ascertained as the apparatus is erected.
    Type: Application
    Filed: April 18, 2012
    Publication date: October 24, 2013
    Inventor: Deniel K. Carrell
  • Publication number: 20130269195
    Abstract: An electronic level for receiving a reflection light from a pattern marked on a leveling rod and for determining a height of sighting position and a distance to the leveling rod is disclosed. The electronic level comprises an electronic level main unit, a sighting optical system accommodated in the electronic level main unit and for sighting the leveling rod, a line sensor for receiving a part of reflection light, and a control arithmetic unit for calculating a height of sighting position and a distance to the leveling rod based on signals from the line sensor. The electronic level has a crude measurement mode and a precise measurement mode, wherein the crude measurement mode is initiated by the control arithmetic unit, and the measurement mode is changed over to the precise measurement mode by detecting the pattern based on a photodetection signal from said line sensor by measurement.
    Type: Application
    Filed: April 2, 2013
    Publication date: October 17, 2013
    Inventors: Tatsuyuki Matsumoto, Naoki Shoji, Yuji Ishiguro
  • Patent number: 8539685
    Abstract: A method of determining a position of a point in a local coordinate system using a survey instrument comprising an integrated optical total station and digital level includes measuring an angle associated with the point. The angle may be measured about a vertical axis of the survey instrument, and the vertical axis may be substantially aligned with a local gravity vector. The method also includes determining a distance between the survey instrument and the point using an electronic distance measuring device and measuring a difference in height between a horizontal axis of the survey instrument and the point using a leveling staff positioned relative to the point. The horizontal axis may be substantially orthogonal to the vertical axis. The method also includes determining the position of the point in the local coordinate system using the angle, the distance, and the difference in height.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: September 24, 2013
    Assignee: TRIMBLE Navigation Limited
    Inventor: Miguel Amor
  • Patent number: 8537216
    Abstract: A leveling apparatus for optically detecting a height difference relative to a leveling staff includes an objective, a two-dimensional detector, a mount for rotating both the objective and the detector about a fixed vertical axis of the apparatus, and a processor. The detector is arranged such that its rows are inclined to an image of a vertical axis of the object by an acute angle. A method of detecting a height difference of an apparatus relative to a leveling staff includes imaging the leveling staff onto an array of detectors such that the image of a vertical axis of the staff is inclined to detector rows at an acute angle.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: September 17, 2013
    Assignee: TRIMBLE Jena GmbH
    Inventor: Klaus Guertler