Patents by Inventor Hans Ulrich Meyer
Hans Ulrich Meyer 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: 11262219Abstract: An inductive absolute position sensor has a scale with planar conducting features on a pattern repeating every spatial period TC along a measuring path and a reading head with planar windings: multipolar sine and cosine sense windings of spatial period TF=TC/M, M an integer, a unipolar first drive winding surrounding the sense windings and a multipolar second drive winding of spatial period TC/N along the measuring path, with N=M±1. An electronic circuit makes a first mode measurement using the first drive winding and a second mode measurement using the second drive winding. The absolute position in a range TC is computed from both modes' measurements. The sensor may be as compact as the incremental sensor it replaces, as the scale pattern and second drive winding needed for making it absolute do not need extra space.Type: GrantFiled: June 4, 2020Date of Patent: March 1, 2022Assignee: hemy8 SAInventor: Hans Ulrich Meyer
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Publication number: 20210048315Abstract: An inductive absolute position sensor has a scale with planar conducting features on a pattern repeating every spatial period TC along a measuring path and a reading head with planar windings: multipolar sine and cosine sense windings of spatial period TF=TC/M, M an integer, a unipolar first drive winding surrounding the sense windings and a multipolar second drive winding of spatial period TC/N along the measuring path, with N=M±1. An electronic circuit makes a first mode measurement using the first drive winding and a second mode measurement using the second drive winding. The absolute position in a range TC is computed from both modes' measurements. The sensor may be as compact as the incremental sensor it replaces, as the scale pattern and second drive winding needed for making it absolute do not need extra space.Type: ApplicationFiled: June 4, 2020Publication date: February 18, 2021Inventor: Hans Ulrich Meyer
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Patent number: 10436733Abstract: A capacitive imaging method or device using an array of row electrodes 101 and column electrodes 102 on a substrate 100, wherein cross-capacitance between row and column electrodes is obtained from row electrode 101 self-capacitance measured with the remaining electrodes grounded, column electrode 102 self-capacitance measured with the remaining electrodes grounded, and combined row and column electrode self-capacitance measured with the remaining electrodes grounded. A preferred embodiment is a hand-held wall scanner for detecting hidden features having a two-dimensional display the size of the array and located over it. Hidden features influencing row-to-column cross-capacitances are thus imaged in real size and at their real location.Type: GrantFiled: March 10, 2017Date of Patent: October 8, 2019Assignee: HEMY8 SAInventor: Hans Ulrich Meyer
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Patent number: 10393492Abstract: A feeler gauge includes multiple feeler blades and an optical sensor. Each of the multiple feeler blades rotates about an axis between a measuring position and a non-measuring position. Each of the multiple feeler blades includes a measurement portion configured to be inserted into a gap to be measured and a proximal end having an indication of thickness of the respective feeler blade thereon. The optical sensor optically determines one or more of the multiple feeler blades that are deployed in the measuring position from the respective indications of thickness of each of the one or more feeler blades.Type: GrantFiled: December 15, 2016Date of Patent: August 27, 2019Assignee: General Electric CompanyInventors: Walter Umbricht, Benno Basler, Daniel Rawyler, David Wäckerlin, Hans Ulrich Meyer
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Publication number: 20170261459Abstract: A capacitive imaging method or device using an array of row electrodes 101 and column electrodes 102 on a substrate 100, wherein cross-capacitance between row and column electrodes is obtained from row electrode 101 self-capacitance measured with the remaining electrodes grounded, column electrode 102 self-capacitance measured with the remaining electrodes grounded, and combined row and column electrode self-capacitance measured with the remaining electrodes grounded. A preferred embodiment is a hand-held wall scanner for detecting hidden features having a two-dimensional display the size of the array and located over it. Hidden features influencing row-to-column cross-capacitances are thus imaged in real size and at their real location.Type: ApplicationFiled: March 10, 2017Publication date: September 14, 2017Inventor: Hans Ulrich Meyer
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Publication number: 20160060380Abstract: Disclosed are polyaspartic esters obtainable by reaction of at least one polyamine component A), comprising an amine compound of the formula (I), where X is a saturated or unsaturated, linear or branched, aliphatic or cycloaliphatic or aromatic organic radical which is substituted or unsubstituted and/or has heteroatoms in the chain, Y is a secondary amino group bonded to two carbon atoms, R1 and R2 independently of one another are saturated or unsaturated, linear or branched, aliphatic or cycloaliphatic or aromatic organic radicals having 1 to 18 carbon atoms, and are substituted or unsubstituted and/or have heteroatoms in the chain, and n is a natural number from 1 to 4, with at least one polyisocyanate component B), comprising a polyisocyanate which contains at least one chemically bonded, non-ionic, hydrophilic group, characterized in that the ratio of the number of secondary amino groups Y to the number of isocyanate groups in the polyisocyanate is from 250:1 to 3:1.Type: ApplicationFiled: August 26, 2015Publication date: March 3, 2016Inventors: Hans-Josef Laas, Michael Grahl, Olaf Fleck, Hans-Ulrich Meyer-Westhues, Michèl La Faille
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Patent number: 7880462Abstract: A pulsed coil drive for a sampled inductive transducer has at least one drive coil connected in a series circuit with a capacitor having a first terminal connected to the negative terminal of a voltage source. The series circuit is normally open during the intervals between pulses. Sampling occurs once per pulse. Each pulse's sampling interval is preceded by a pre-sampling interval and followed by a post-sampling interval. The supply voltage that is applied across the series circuit during both the pre- and post-sampling intervals is applied by switching a first terminal of the coil's free terminal to the voltage source's positive terminal through a p-channel MOSFET. During the sampling interval, the series circuit is shorted by switching the coil's free terminal to the voltage source's negative terminal through an n-channel MOSFET.Type: GrantFiled: October 5, 2007Date of Patent: February 1, 2011Assignee: Advanced Sensor Technology LimitedInventor: Hans Ulrich Meyer
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Patent number: 7652469Abstract: An inductive position sensor has a spatially periodic scale with a series of conducting or permeable features of pitch T and a reading head with drive windings and sense windings, facing the scale with a spatial period 2T along the scale. The windings are each divided in two identical winding elements,having the same relative location within two identical winding element patterns having a center-to-center distance along the scale of NT+T/2, N being an integer, and connected so that the winding element polarities in each winding are either opposed for drive windings and the same for sense windings or the same for drive windings and opposed for sense windings. Thereby, direct couplings in both patterns cancel each other, while the spatially periodic signals coupled via the scale reinforce each other.Type: GrantFiled: July 13, 2007Date of Patent: January 26, 2010Assignee: Advanced Sensor Technology LimitedInventor: Hans Ulrich Meyer
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Publication number: 20080084203Abstract: The pulsed coil drive for a sampled inductive transducer has at least one of its drive coils forming a series circuit with a capacitor whose free terminal is connected to the negative terminal of a voltage source. This series circuit is normally open, i.e. has no current during the intervals between pulses. Sampling occurs once per pulse and needs a minimum time for the sampled signal to settle to the required accuracy. Each pulse's sampling interval is preceded by a pre-sampling interval and followed by a post-sampling interval. The supply voltage is applied across the series circuit during both the pre- and post-sampling intervals by switching the coil's free terminal to the voltage source's positive terminal through a p-channel mosfet. During the sampling interval, the series circuit is shorted by switching the coil's free terminal to the voltage source's negative terminal through an n-channel mosfet.Type: ApplicationFiled: October 5, 2007Publication date: April 10, 2008Applicant: ADVANCED SENSOR TECHNOLOGY LIMITEDInventor: Hans Ulrich Meyer
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Publication number: 20080018328Abstract: An inductive position sensor has a spatially periodic scale with a series of conducting or permeable features of pitch T and a reading head with drive windings and sense windings, facing the scale with a spatial period 2T along the scale. The windings are each divided in two identical winding elements having the same relative location within two identical winding element patterns having a center-to-center distance along the scale of NT+T/2, N being an integer, and connected so that the winding element polarities in each winding are either opposed for drive windings and the same for sense windings or the same for drive windings and opposed for sense windings. Thereby, direct couplings in both patterns cancel each other, while the spatially periodic signals coupled via the scale reinforce each other.Type: ApplicationFiled: July 13, 2007Publication date: January 24, 2008Applicant: ADVANCED SENSOR TECHNOLOGY LIMITEDInventor: Hans Ulrich Meyer
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Patent number: 7015687Abstract: The inductive position sensor includes a scale (10) with a series of conductive loops spaced out by a pitch T and a cursor (20) provided with conductors forming each a series of alternating hairpin turns spaced out by a pitch T, the inducing (21 to 23; 42, 44) and induced (31 to 33; 41, 43) cursor conductors are laid out in two separate interlaced conductor groups, coupling between inducing and induced conductors of the second group taking place only via the scale loops. Such a sensor is simple, robust, accurate, insensitive to external electromagnetic fields and tolerant of misalignment between cursor and scale.Type: GrantFiled: June 17, 2003Date of Patent: March 21, 2006Inventor: Hans Ulrich Meyer
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Publication number: 20040004472Abstract: ? The inductive position sensor includes a scale (10) with a series of conductive loops spaced out by a pitch T and a cursor (20) provided with conductors forming each a series of alternating hairpin turns spaced out by a pitch T, the inducing (21 to 23; 42, 44) and induced (31 to 33; 41, 43) cursor conductors are laid out in two separate interlaced conductor groups, coupling between inducing and induced conductors of the second group taking place only via the scale loops. Such a sensor is simple, robust, accurate, insensitive to external electromagnetic fields and tolerant of misalignment between cursor and scale.Type: ApplicationFiled: June 17, 2003Publication date: January 8, 2004Inventor: Hans Ulrich Meyer
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Patent number: 5937533Abstract: A measuring instrument comprises a column (10) on which is mounted a carriage (11) with a drive cursor (12) and a measuring cursor (20) sliding on the drive cursor (12) and carrying a measuring contact (24) and a measuring device (40). A measuring force device (25) is arranged between the two cursors and determines, thanks to a lever (26) a rest position and two measuring positions vertically upwardly or downwardly offset or corresponding to a predetermined measuring force on the member to be measured. A motor (15) displaces the drive cursor (12) and the position detector (36) permits measuring the relative position between the two cursors. A control unit (35) controls the speed and direction of rotation of the motor (15) as a function either of the signals (44) received from the position detector (36) or from two external contacts (42, 43).Type: GrantFiled: June 12, 1997Date of Patent: August 17, 1999Assignee: Sylvac SAInventors: Hans Ulrich Meyer, Daniel Clerc
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Patent number: 5804963Abstract: The inductive displacement sensor includes a first element of cursor (31) and a second element or scale (32) exhibiting spatially periodic electromagnetic characteristics, such as windows (321) and traverses (322). The first element (31) has a series of windings, e.g., three interlaced meander windings (31A to 31C) and an electronic circuit being connected to the windings on the first element to bring about a current in at least one of the windings (31A) and to measure the influence due to the position of the second element's spatially periodic electromagnetic characteristics on the inductances of at least a part of the windings (31B, 31C) of the first element (31). Such a displacement sensor is simple, rugged, small, draws little current and is insensitive to water.Type: GrantFiled: January 21, 1997Date of Patent: September 8, 1998Inventor: Hans Ulrich Meyer
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Patent number: D478019Type: GrantFiled: January 15, 2002Date of Patent: August 5, 2003Assignee: Melius SAInventor: Hans Ulrich Meyer