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Six-year-old Robert W. Patch granted a patent for a "toy truck".
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| Number | Title | Issue Date |
| 7428847 | Torque detection device An inventive torque detection device includes: a magnetic circuit forming member provided at a rotating body to which a torque is applied; a magnetic flux collecting ring for collecting a generated magnetic flux; a detection part for detecting, based on the density ... | 09/30/2008 |
| 7424830 | Torque sensor A torque sensor 1 is provided with two shafts 3, 4 (input shaft 3 and output shaft 4) which constitute a shaft member 2, which is a torque detection object, an elastic member 5 which connects the shafts 3 and 4... | 09/16/2008 |
| 7363825 | Non-contact position sensor housing using existing torque sensor probe A sensors casing supports torque sensors and the position sensors and segment magneto-sensitive elements to detect the relative rotation between an input shaft and an output shaft and the angular position of the shaftsin a steering column housing. The sensor casing ... | 04/29/2008 |
| 7360459 | Rotation sensor mounted on a shaft A rotation sensor includes a first rotor constituted by a magnetic material and having an outer face that has first conductive layers disposed in two levels as viewed in the direction of a rotation axis and second conductive layers disposed outwardly of and between ... | 04/22/2008 |
| 7320255 | Torque sensor magnetometer The magnetometer assembly according to this invention includes a first coil assembly and a second coil assembly for detecting separate magnetic fields along an axial portion of a torque transducer. The first and second coil assemblies are driven by independently adj... | 01/22/2008 |
| 7310870 | Method for forming an annular magnetostrictive coat on an outer peripheral surface of a rotational shaft of magnetostrictive torque sensor For forming an annular magnetostrictive coat on an outer peripheral surface of a rotational shaft associated with a magnetostrictive torque sensor, a magnetostrictive-coat forming method comprises a step of fitting a cylindrical masking jig over the outer peripheral... | 12/25/2007 |
| 7302864 | Torque sensor A plurality of acoustic wave sensing devices can be provided, which are mechanically simulated for implementation upon a quartz wafer substrate. The quartz wafer substrate is appropriately etched to produce a quartz diaphragm from the quartz wafer substrate. A plura... | 12/04/2007 |
| 7293472 | Torque detecting apparatus In a torque detecting apparatus, in each of two flux concentrating rings, a portion along a circumferential direction is raised outward in a radial direction so that a flux concentrating section is provided that has a plate shape extending on one side in an axial di... | 11/13/2007 |
| 7287440 | Torque sensor A magnetism generation portion 4 is provided at a first shaft 2, and a first magnetic yoke 7 and a second magnetic yoke 8 bent in L shape are provided at a second shaft 3 so that a magnetic flux generated at the magnetism generatio... | 10/30/2007 |
| 7249527 | System for sensing absolute torque and a module comprising it A system for determining the absolute torque applied to a rotating shaft includes a sensitive element that is deformable under torsion and a measuring device having first and second coders that are intended to be rotationally fixed, respectively, in the vicinity of ... | 07/31/2007 |
| 7246531 | Torque sensor for detecting a shaft torque A first shaft and a second shaft are connected coaxially. A torsion bar converts a torque applied between two shafts into a torsion displacement. A multipolar magnet is fixed to the first shaft. One set of magnetic yokes is fixed to the second shaft and disposed in ... | 07/24/2007 |
| 7225686 | Torque sensing apparatus A torque sensor includes a substantially tubular giant magnetostrictive member, a shaft passing through the inner bore of the giant magnetostrictive member and capable of transmitting torque to the giant magnetostrictive member, and a detection coil for detecting ch... | 06/05/2007 |
| 7225687 | Power steering apparatus and torque sensor Power steering apparatus includes input and output shafts connected by a torsion bar; and a coil unit disposed around one of the shafts and arranged to sense torque between the input and output shafts. A housing includes an axial bore in which the shafts and coil un... | 06/05/2007 |
| 7222541 | Measuring torsional distortion with an easily applied clip device (saw) A device for measuring torsional distortion of a body comprises first and second clip portions each having a central part and two legs depending from the central part, each leg having adjacent the free end thereof a groove or projection for engaging a respective pro... | 05/29/2007 |
| 7222532 | Package for electro-mechanical systems A packaging system in one example comprises an improved mechanical packaging system for a circuit board disposed between housing elements, the improvement comprising an upper housing member having a centrally disposed opening provided therethrough, a unitary electro... | 05/29/2007 |
| 7219562 | Angle sensor The invention provides an angular position sensor (1) comprising two magnets (32, 33) attached to the inside face of a rotor (31) for generating a magnetic field (50) and a magnetism detection device (43) disposed in the magnetic f... | 05/22/2007 |
| 7210360 | Apparatus for sensing position and/or torque An apparatus measures relative displacement between a first end and a second end of a shaft. The first and second ends being centered on a shaft axis. The apparatus includes first and second ferromagnetic plates. The first ferromagnetic plate has a first side and a ... | 05/01/2007 |
| 7205759 | Apparatus and method for determining an engine speed A removable sensor assembly for non-intrusively sensing instantaneous speed of an engine comprising a crankshaft having a respective end equipped with an externally accessible bolt, the removable sensor assembly comprising: a housing comprising a recess configured t... | 04/17/2007 |
| 7191669 | Highly reliable torque sensor A torque sensor is provided which consists of a magnet, an assembly of magnetic rings, and a magnetic sensor. The magnetic rings have claws arrayed thereround at regular intervals. Each of the claws of one of the rings is interposed between adjacent two of the claws... | 03/20/2007 |
| 7181983 | Torque sensor malfunction diagnostic system A system to diagnose a malfunction of a torque sensor in a vehicle steering system includes a voltage difference generator that outputs a voltage difference by comparing a voltage of a contact part between a temperature correcting coil and a torque detecting coil in... | 02/27/2007 |
| 7178413 | Wheel bearing with sensors Wheel bearing comprising a rotating part and a stationary flange, and rolling contact elements arranged between them. A brake caliper is supported on the stationary flange. At least one sensor is arranged on the stationary flange. The sensor measures the braking for... | 02/20/2007 |
| 7174795 | Integrated non-contacting torque and absolute position sensor for steering applications An integrated torque and position sensor is set forth for measuring the relative rotational movement between an input and an output shaft and for measuring the final angle position of the output shaft. The integrated sensor includes a wheel that rotates with the sha... | 02/13/2007 |
| 7121153 | Rotation sensor mounted on a shaft A rotation sensor includes a first rotor constituted by a magnetic material and having an outer face that has first conductive layers disposed in two levels as viewed in the direction of a rotation axis and second conductive layers disposed outwardly of and between ... | 10/17/2006 |
| 7117755 | Torque sensor for vehicle A torque sensor including a first step formed on an inner peripheral surface of a sensor housing, a second step formed on an outer peripheral surface of a detection coil assembly, the first and second steps axially supporting each other, and a groove formed on the o... | 10/10/2006 |
| 7086296 | Torque sensor In a torque sensor, a first detection tube (13) made from magnetic material covers a cylindrical magnetic leak prevention member (12) that is made from nonmagnetic material and covers a first shaft (3) made from magnetic material. Magnetic resis... | 08/08/2006 |
| 7051602 | Torque sensor A first shaft and a second shaft are connected coaxially. A torsion bar converts a torque applied between two shafts into a torsion displacement. A multipolar magnet is fixed to the first shaft. One set of magnetic yokes is fixed to the second shaft and disposed in ... | 05/30/2006 |
| 7028545 | Position sensor, designed in particular for detecting a steering column torsion The invention concerns a position sensor, designed in particular for detecting a steering column torsion, consisting of a first magnetic structure including a plurality of magnets and a second magnetic structure including two ferromagnetic rings (6, 7) having... | 04/18/2006 |
| 7021160 | Apparatus for sensing position and/or torque An apparatus for measuring relative displacement between a first shaft and a second shaft includes first and second rotor assemblies. The first rotor assembly is coupled to the first shaft and is centered on an axis. The second rotor assembly is coupled to the secon... | 04/04/2006 |
| 6957589 | Temperature compensator of torque sensor The present invention provides a temperature compensator for a torque sensor, including a pair of coils, which are connected to an AC power supply circuit via transistors and in which inductances change in opposite directions depending on torque, and a torque detect... | 10/25/2005 |
| 6951261 | Power steering system having torque sensor A power steering system includes a torsion bar, which is twistable around its axis for an amount corresponding to a steering torque applied to a steering shaft, a torque sensor, an electric motor, which is driven through a drive circuit to provide the steering shaft... | 10/04/2005 |
| 6948383 | Wide angle rotation angle sensor For simpler manufacture of a rotation angle sensor and to utilize as much of its angle expansion as possible, the partial stator elements are in the shape of a partial ring split into a large partial stator element (22.1) and a small partial stator element ( | 09/27/2005 |
| 6928887 | Torque sensor A first shaft and a second shaft are connected coaxially. A torsion bar converts a torque applied between two shafts into a torsion displacement. A multipolar magnet is fixed to the first shaft. One set of magnetic yokes is fixed to the second shaft and disposed in ... | 08/16/2005 |
| 6928888 | Torque sensor for detecting a shaft torque A first shaft and a second shaft are connected coaxially. A torsion bar converts a torque applied between two shafts into a torsion displacement. A multipolar magnet is fixed to the first shaft. One set of magnetic yokes is fixed to the second shaft and disposed in ... | 08/16/2005 |
| 6925893 | Rotation sensor A rotation sensor includes a first rotor constituted by a magnetic material and having an outer face that has first conductive layers disposed in two levels as viewed in the direction of a rotation axis and second conductive layers disposed outwardly of and between ... | 08/09/2005 |
| 6912923 | Device for determining the torque exercised on a shaft Device for determining a torque exercised on a shaft, wherein the shaft comprises a first shaft section and a second shaft section, wherein the two shaft sections can be rotated relative to another, with a multi-pole magnetic ring which surrounds the first shaft sec... | 07/05/2005 |
| 6871554 | Absolute angle sensor with a magnetic encoder having non-even spaced reference pulses A device for determining the absolute angular position of a turning device with respect to a fixed structure, including an encoder provided with a main multipolar track and a multipolar track called “top turn”, said top turn track includes M singularities which ... | 03/29/2005 |
| 6868743 | Highly reliable torque sensor A torque sensor is provided which consists of a magnet, an assembly of magnetic rings, and a magnetic sensor. The magnetic rings have claws arrayed thereround at regular intervals. Each of the claws of one of the rings is interposed between adjacent two of the claws... | 03/22/2005 |
| 6698299 | Magnetoelastic torque sensor A flux-gate magnetometer torque sensor is provided having a rotatable shaft to which a torque force is to be applied, a sleeve of conductive foil affixed to the surface of the shaft over the magnetically active regions, a plurality of saturable magnetic w... | 03/02/2004 |
| 6070506 | Ratchet head electronic torque wrench A ratcheting electronic torque wrench has an input beam in the form of a hollow housing with a handle end and a work end, a ratchet head disposed within the work end of the housing and rotatable relative thereto and a reaction beam disposed within the hou... | 06/06/2000 |
| 5705756 | Differential torque measuring device A device measures the torsional moment being exerted on a shaft. The device includes two magnetic circuits, essentially cylindrical and arranged around the shaft, each equipped with at least one permanent magnet generating a magnetic flux and with a varia... | 01/06/1998 |
