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| Number | Title | Issue Date |
| 6611178 | Nanometer-order mechanical vibrator, production method thereof and measuring device using it There are provided a stable and highly sensitive nanometric mechanical oscillator having a considerably high detection resolution that enables detection of variation in force or mass on the nanometer order, as well as a method of fabricating the same, and... | 08/26/2003 |
| 6600202 | Compact sensing apparatus having reduced cross section and methods of mounting same A compact sensing apparatus having reduced cross section and methods are provided for sensing the magnitude and direction of an electrical or magnetic field. The compact sensing apparatus and method preferably provide one of two transducer orientations in... | 07/29/2003 |
| 6588256 | Method and device for determining torque setpoint values for a motor vehicle having at least two drive assemblies A method of determining setpoint values in motor vehicles that have at least two drive assemblies. Torque setpoint values are determined in separate evaluation branches for each of the drive assemblies as a function of a variable that characterizes the dr... | 07/08/2003 |
| 6539782 | Load machine for a combustion engine test bench A load machine for a combustion engine test bench includes at least one eddy-current brake associated with at least one electric drive. The brake includes a toothed ferromagnetic rotor secured to a shaft mounted so that it can rotate through a casing cont... | 04/01/2003 |
| 6457352 | Rolldynamometer The subject matter of the invention is a rolldynamometer for motor vehicles comprising at least one running roll or drum (9) for one wheel (2) of one axis of the vehicle (1) to be examined, respectively, at least one electric motor (9) for directly drivin... | 10/01/2002 |
| 6450045 | Torque sensing calibration unit A torque sensing calibration unit comprises a hollow torsion bar (2) to which torque is to be applied, associated with two or more pairs or positions sensors (10, 11, 12, 13, 14, 15) each pair being arranged to measure movement of the bar on diametrically... | 09/17/2002 |
| 6443018 | Multidirectional fatigue damage indicator A multidirectional fatigue damage indicator is disclosed. The fatigue damage indicator is composed of a series of fatigue fuse elements welded to a semicircular assembly frames. The fuse elements have the same fatigue lifetime in each row but have differe... | 09/03/2002 |
| 6443019 | Torque sensor and method of producing a torque-dependent signal A torque sensor has a generator whose output signal is a function of a torque, a second signal generator, whose output signal changes in an opposite direction as a function of the torque, and an evaluation device which has a summing means which is connect... | 09/03/2002 |
| 6434454 | Testing system and method for automotive component using dynamometer In testing system and method for an automotive vehicular component such as an engine, a system monitor section sets required items including a vehicular specification and a running resistance of the vehicle and outputs the set required items to a measurem... | 08/13/2002 |
| 6427542 | Torque sensor and steering column provided with such a sensor Two external rings and an internal ring form an assembly that is connected to a column so it rotates with it, to which column the torque to be measured is applied. Elastically deformable members connect the internal ring to one external ring, and the othe... | 08/06/2002 |
| 6422096 | Load cell A load cell comprises a member for receiving forces applied by the load, and a plurality of force sensing elements supported by the member and arranged with respect, to each other to independently sense differently directed components of the applied force... | 07/23/2002 |
| 6386052 | Torque sensor A torque sensor which does not require complicated neutral adjustment using a position adjustment mechanism or the like, which is capable of reducing cost and heat generation, improving reliability and realizing a one-system detection circuit. A torque se... | 05/14/2002 |
| 6382020 | Apparatus for testing automotive wheels and parts thereof especially motorcycle wheels The invention provides a device for testing motor vehicle wheels, tires, wheel hubs, wheel bearings, and wheel bolts under loading conditions similar to operating conditions, including a mounting device for pivoting attachment of a vehicle wheel; a drum a... | 05/07/2002 |
| 6370967 | Torque sensor with joint means for producing a consistent magnetic effect A torque sensor having an improved detection accuracy is disclosed. The torque sensor includes a cylindrical stator. The stator is arranged to face a magnetostrictive member fixed to a shaft. The stator includes a stator body and two retainer rings. When ... | 04/16/2002 |
| 6354156 | Torque sensor and method of producing a torque-dependent signal A torque sensor has a first signal generator whose output signal changes as a function of a torque, a second signal generator whose output signal changes in the opposite direction as a function of the torque, and a circuit which has a difference-forming u... | 03/12/2002 |
| 6324918 | Bidirectional force sensor The sensor of the invention comprises a flexible beam of a rectangular cross section with rigid solid end blocks at both ends for securing the sensor in a tester. The beam has two symmetrically-shaped through slots cut in mutually perpendicular directiors... | 12/04/2001 |
| 6301976 | Torque sensing apparatus having a magnetoelastic member secured to a shaft A shaft (12) experiences torsion about its axis (14) in response to an applied torque (T). A cylindrical magnetoelastic member (16) is secured coaxially about the shaft (12). The magnetoelastic member (16) has first and second spaced apart end portions (1... | 10/16/2001 |
| 6301975 | Torque sensor having improved reliability against thermal expansion and axial displacement of components A torque sensor having a plurality of axial grooves formed on an outer circumferential surface of the end portion of a first rotation shaft to which a cylindrical member is fixed so as to be extended in an axial direction of the first rotation shaft. A ci... | 10/16/2001 |
| 6247371 | Three-axis sensor The invention provides a small-sized and high-sensitivity three-axis sensor capable of three-dimensionally detecting a physical quantity using a single sensor unit. The three-axis sensor comprises an operating member; a supporting base having a hollow and... | 06/19/2001 |
| 6239588 | Method of fabricating a magnetic shield for a plastic molded electricity meter frame Magnetic shields for plastic molded electricity meter frames are positioned to substantially block external magnetic fields from adversely affecting operation of meter components. The shield can be utilized with either electromechanical or electronic ener... | 05/29/2001 |
| 6151966 | Semiconductor dynamical quantity sensor device having electrodes in Rahmen structure A semiconductor accelerometer device is formed on an SOI substrate by micro-machining. A movable unit is supported at both ends, and a weight portion is movable in response to acceleration exerted in the detection direction. A movable electrode is formed ... | 11/28/2000 |
| 5983731 | Load transducer A load transducer adapted to measure a load force applied to a load anvil. The load transducer including a base and a relatively rigid bridge coupled to the base and load anvil to floatably support the load anvil so that the load anvil moves relative to t... | 11/16/1999 |
| 5656785 | Micromechanical contact load force sensor for sensing magnitude and distribution of loads and tool employing micromechanical contact load force sensor A micromechanical contact load force sensor is disclosed. The force sensor comprises an array of capacitive load cells on a substrate. The force sensor is able to sense high loads, on the order on 109 N/m2, and distribute the load ov... | 08/12/1997 |
| 5610457 | Brushless motor with hall elements for controlling drive circuit and for detecting a position of rotor by use of magnetic flux varying means A brushless motor including: a rotor casing having a cylindrical wall with an opening, the rotor casing holding a magnet therein, the magnet having an exposed portion which is exposed through the opening of the rotor casing; a stator core having drive coi... | 03/11/1997 |
| 5533405 | Sound comparison device for a drum A sound comparison device for a drum that has a body that includes a bottom with a periphery. The periphery of the bottom of the body is in contact with the surface of a drum head. A drum head tension measurement element includes a tip which protrudes fro... | 07/09/1996 |
| 4697458 | Crane load-test gauge The crane load-test gauge of the instant invention includes an elongate vessel having multiple fluid containing compartments therein. Each compartment has an open top side. A fluid carrying manifold is disposed along the length of the vessel and has a val... | 10/06/1987 |
| 4646391 | Spinners A spinner is disclosed having at least one drawing roller arrangement, the bottom rollers of which are driven by at least one electric motor. For the purpose of identifying specific malfunctions and setting errors, a monitor is allocated to the electric m... | 03/03/1987 |
| 4539841 | Method of determining engine cylinder compression pressure and power output A method of diagnosing the peak compression pressure and power output of individual cylinders of an internal combustion engine based on stored normalized energy coefficients derived from a normalized pressure curve and the measured instantaneous engine sp... | 09/10/1985 |
| 4493218 | Transducer system employing a spring with linear characteristics Apparatus indicating the linear movement of a member includes a pulley and a spring disposed on the pulley and having characteristics of producing a force substantially linearly related to its speed of movement with respect to the pulley. A motor produces... | 01/15/1985 |
| 4359281 | Method and apparatus for testing the braking efficiency of machines In a known method of testing braking effectiveness, a sheet carrying a series of lines is attached to a moving part of a machine and these lines are sensed sequentially by a photo detector as the machine part moves. The output of the photo detector thus g... | 11/16/1982 |
| 4276772 | Force transducer A force transducer comprises a block of material which is formed with a generally U-shaped or pi-shaped throughaperture 24 and a generally T-shaped throughaperture 26 in such a way as to form two loading members 10, 12 coupled together by first flexure el... | 07/07/1981 |
| 4249416 | Apparatus for measuring engine torque A measure of engine torque can be obtained by measuring the difference between crankshaft oscillations at the front and rear end of the engine. Angle encoders producing phase outputs attached to the front and rear ends of the crankshaft have their outputs... | 02/10/1981 |
| 4238959 | Automobile suspension dynamic simulator An automobile suspension dynamic simulator having a base, tilting platform structure for supporting an automobile thereon, hinges along one lateral side of the tilting platform structure pivotally connecting it to the base, and structure for lifting the o... | 12/16/1980 |
| 4228681 | Crane load computer A device for checking the loading state for a lifting appliance such as a crane. The device includes a calculation member to determine the weight suspended from the crane hook, and a memory adapted to receive diagrams to store information established by t... | 10/21/1980 |
| 4223554 | Hoist test stand A self-contained portable test stand for testing hoists and the like both statically and dynamically. The test stand includes a cantilever beam adapted to support a hoist at one end and a hydraulic cylinder at the other. A variable mechanical advantage fo... | 09/23/1980 |
| 4197736 | Bi-axial load cell A load cell for measuring the rolling resistance of a tire as a function of a load placed on the tire. The cell includes a block having major parallel surfaces and a centrally disposed opening through which a shaft coupled to the tire rotates. An inner hu... | 04/15/1980 |
| 4169371 | Method and apparatus for measuring drive system characteristic data in dynamic operation The torque and/or power of a drive system in dynamic operation is ascertained by generating first signals which are at least proportional to the speed of the drive system, automatically differentiating the first signals to obtain second signals which are ... | 10/02/1979 |
| 4150565 | Vehicular single shaft gas turbine engine power system A vehicular gas turbine engine power system includes an engine, an automatic clutch, a service clutch and an infinitely variable transmission coupled successively along a power train. A vehicle control system controls engine speed, transmission ratio and ... | 04/24/1979 |
| 4141244 | Load indicating metering devices for motor driven loads Power transmission systems having a movable member presenting variable load conditions on a motor connected thereto by means of a power transmission device are monitored by load sensing means. Sensed signals are processed to produce visual display conditi... | 02/27/1979 |
| 4134291 | Process for determining the movement resistance characteristics of an automobile vehicle To determine the characteristics of resistance to movement of an automobile vehicle several test runs are made with the internal combustion engine and transmission replaced by a working electric motor and drive to the wheels, and dummy engine and drive co... | 01/16/1979 |
