Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 7363827 | Torque sensor system including an elliptically magnetized shaft A torque sensor includes a shaft and a magnetic sensor. The shaft may have at least one active region having an elliptical magnetization. The magnetic sensor may be configured to sense a magnetic field about the shaft, where the magnetic field is representative of a... | 04/29/2008 |
| 7357041 | Rotation detection device Torque ripple of a motor due to a rotation detection device is reduced. A periodicity gain multiplier 51 multiplies the rotation angle θ of a detection target by a ripple periodic number m per rotation of the detection target. An adder 53 adds a phase... | 04/15/2008 |
| 7308834 | Torque sensor and electric steering device using the same A torque sensor is provided with a torsion bar, first and second elongate sleeves respectively secured to one and the other ends of the torsion bar, and a pair of resolvers respectively mounted on the first and second elongate sleeves. First and second stop portions... | 12/18/2007 |
| 7267016 | Sensitized ring for use with a sensor A sensitizing ring for sensors having a reduced manufacturing cost and an improved profile shape manufacture with a diameter of 120 mm or less. The sensitizing ring of the present invention is used to measure the rate of rotation and position of a rotating element. ... | 09/11/2007 |
| 7263903 | Method and device for operating a vehicle A method and a device for operating a vehicle allow a torque of the vehicle during operation of the vehicle to be measured. A torsional angle at at least one drive shaft of the vehicle is measured, and the torque transmitted via the at least one drive shaft is ascer... | 09/04/2007 |
| 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 |
| 7237444 | Torque cell for determining a torque load on a rotary member A torque detection system is provided for detecting torque applied to a rotary shaft. A spring element is connected to an input and output shaft. As torque is applied to the shaft system, the input shaft is rotationally offset from the output shaft and a sensing sys... | 07/03/2007 |
| 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 |
| 7134329 | Torque detecting apparatus The present invention provides a torque detecting apparatus that includes a drive plate that is elastically deformable in response to an applied torque, strain gauges, and a torque detecting circuit, and the torque detecting apparatus can accurately detect torque tr... | 11/14/2006 |
| 7048633 | Elastic coupling An elastic coupling is provided and has first and second coupling parts that are rotatable relative to one another and engage one another via elastomeric elements. A coupling gap remains between the coupling parts. A marking is disposed on the outer edge of one of t... | 05/23/2006 |
| 6997065 | Torque measurement apparatus Torque in a shaft is detected by means of non-contacting sensors sensing a torque-dependent magnetic field emanated by an integral transducer region of the shaft that is circumferentially or longitudinally magnetized. The shaft is driven by a motor and subject to a ... | 02/14/2006 |
| 6983664 | Rotation angle detecting device, and torque detecting device The rotation angle detecting device includes a target of a spur gear shape made rotatable together with a rotary member and having a plurality of teeth of magnetic members protruding at a substantially equal pitch in the circumferential direction of the axis of the ... | 01/10/2006 |
| 6973991 | Electric power steering apparatus A driving control unit (21b) of a controller (21) determines which of an input shaft (32) and an output shaft (33) in a steering shaft (3) is dynamically superior and when the output shaft (33) is dynamically superior... | 12/13/2005 |
| 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 |
| 6782766 | Apparatus for detecting torque, axial position and axial alignment of a rotating shaft The present invention is an apparatus for obtaining an indication of torque, axial alignment and axial location for a shaft rotating about an axis of rotation. A first set of detectable elements are operably connected to the shaft and positioned parallel to the axis... | 08/31/2004 |
| 6701792 | Torque sensing apparatus for measuring relative torque between two shafts A torque sensing device adapted for use in an electric power assisted steering system is provided. In one embodiment, the device comprises first and second shafts interconnected by a torsion bar, a bushing disposed about the torsion bar and frictionally e... | 03/09/2004 |
| 6085600 | Torque measuring device for window regulator This invention relates to a device for measuring torque in a window regulator mechanism. Two facing discs on the drive shaft have encoding means, the differential in position between each disc's encoding means being a relative measure of torque between th... | 07/11/2000 |
| 5969269 | Flexible coupling with torque measuring and detecting device A flexible coupling and torque monitoring device includes a hub having two sets of flexible spokes extending radially outwardly from a common hub to respective separate rims; the rims are each provided with fingers attached at one end to one rim and with ... | 10/19/1999 |
| 5767420 | Torque detecting device A torque detecting device includes a first rotary member connected to an input shaft and a second rotary member connected to an output shaft and arranged coaxially with the first rotary member. An elastic member is sandwiched between the first rotary memb... | 06/16/1998 |
| 5497667 | Torque detecting apparatus A torque detecting apparatus which includes two detection systems, each formed with a switching element, a sample hold circuit and an output circuit, to be alternately operated, thereby successively outputting, as a signal, torque detected by a torque det... | 03/12/1996 |
| 5450761 | Torque meter A torque measuring device utilizing composite and ferromagnetic materials includes an elongated shaft which is fixed at one end to a hollow or solid shaft with the other end being free of attachment to the shaft and including a plurality of circumferentia... | 09/19/1995 |
| 5426986 | Absorption dynamometer torque measuring device and calibration method The invention is an in-line torque meter for use with an absorption dynamometer in which the twist of a rotating shaft that transmits torque from an engine to an air dynamometer is measured by a single sensor on the adjacent stationary structure. The torq... | 06/27/1995 |
| 4899596 | Self-calibrating torque measuring system A universal torque measuring system for hollow drive shafts which automatically compensates for variations in wall thickness exhibited by different drive shafts having the same nominal dimensions. During a calibration procedure, the drive shaft is subject... | 02/13/1990 |
| 4829834 | Speed and torque sensors A speed and torque sensor has a permanent magnet and a pole piece about which are wound together a torque coil and two speed coils and identical with the torque coil. The coils and permanent magnet assembly are contained in an outer housing together with ... | 05/16/1989 |
| 4683746 | Torque monitoring A method of monitoring torque in a drive transmission incorporating a friction clutch assembly having a two part rotatable drive transmitting member the two parts of which are relatively movable against the action of damper springs comprising monitoring t... | 08/04/1987 |
| 4602515 | Torque measurement apparatus containing embedded data structure and related method The radial dimension of selected teeth in toothed wheels used for measuring the transmitted shaft torque are changed in a predetermined spatial pattern corresponding to desired information. Such embedded data structures within the torque measurement appar... | 07/29/1986 |
| 4488443 | Expanded range monopole torque measuring system A torque measurement system for measuring shaft torque has two toothed wheels mounted in spaced apart relationship. Each of the wheels has a plurality of axially extending spaced teeth along its periphery extending into spaces between the teeth of the oth... | 12/18/1984 |
