Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7788985 | Rotational testing system A rotational testing system for a test article includes a rotational test stand. The rotational test stand includes a rotating element having a drive end capable of being mechanically coupled with the test article. The rotational testing system also includes a non-i... | 09/07/2010 |
| 7770470 | Pointer operation apparatus and program for controlling same A pointer operation apparatus having a reaction force to a user operation changes an intensity of the reaction force according to respective users and/or user's conditions by using an operation unit, a force applicator, and other units. The intensity of the reaction... | 08/10/2010 |
| 7409877 | Dynamometer adapter for motorcycles The invention relates to the field of dynamometer drive adapters. In particular, the invention relates to dynamometer drive adapters for motorcycles. ... | 08/12/2008 |
| 7272476 | Universal automotive maintenance component controller apparatus A computer-implemented universal automotive maintenance component controller apparatus that may be used as common core enabling a user to interface with, control, and analyze data from, various modular automotive maintenance or diagnostic equipment and/or components... | 09/18/2007 |
| 7100419 | Method for simulating a dynamic force response and method of calibration A method of simulating a dynamic force event comprises rotating a cam about an axis according to a rotational speed profile and biasing a follower against a surface of the cam as the cam rotates so that the follower moves on the surface and imparts a braking force a... | 09/05/2006 |
| 6613601 | Ultrananocrystalline diamond cantilever wide dynamic range acceleration/vibration/pressure sensor An ultrananocrystalline diamond (UNCD) element formed in a cantilever configuration is used in a highly sensitive, ultra-small sensor for measuring acceleration, shock, vibration and static pressure over a wide dynamic range. The cantilever UNCD element m... | 09/02/2003 |
| 6561013 | Vehicle testing assembly A vehicle testing assembly for performing tests to determine certain characteristics of a motorized vehicle having a set of driven wheels. The testing assembly includes an annular roller with an outer surface. The roller is preferably formed of a steel co... | 05/13/2003 |
| 6516287 | Method and device for simulating the mass of motor vehicles placed on stationary test stands The invention relates to a method and an apparatus for the mass simulation of vehicle masses on a stationary roller test stand, wherein the simulation mass (msim) is determined from the test stand mass (mP) and from the mass (m{chara... | 02/04/2003 |
| 6405586 | Dynamometer roller An improved roller 12 for a dynamometer 10 includes a plurality of equally spaced, congruent recesses 16 parallel to the longitudinal axis of the roller 12 and circumferentially positioned around the perimeter of the roller 12. The recesses 16 form a plur... | 06/18/2002 |
| 6360591 | Method of controlling a chassis dynamometer A method of controlling a chassis dynamometer (10) to simulate actual road conditions experienced by a vehicle (12) is disclosed. The chassis dynamometer (10) includes at least one actuator (14) coupled to a roller (16). The actuator (14) and roller (16) ... | 03/26/2002 |
| 6345542 | Running resistance control apparatus of chassis Dynamometer A running resistance control apparatus of a chassis dynamometer comprises a target vehicle speed calculating section where a target vehicle speed is calculated on the basis of a control torque of a dynamometer, a running resistance torque, a mechanical lo... | 02/12/2002 |
| 5859369 | Snowmobile dynamometer A dynamometer for a snowmobile includes a pair of driver wheels which replace the tension idler wheels so as to contact the inside of the snowmobile track. The regular snowmobile tension idler wheels are removed, and the driver wheels are positioned on th... | 01/12/1999 |
| 5831179 | Combination dynamometer and torsional damping apparatus A dynamometer in combination with a torsional damping apparatus for damping torsional vibration between a prime mover and the dynamometer. The torsional damping apparatus includes a body plate rotatably coupled to a finger plate by a bearing, wherein the ... | 11/03/1998 |
| 5509315 | 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... | 04/23/1996 |
| 5507191 | Dynamometer An absorption dynamometer includes a rotor (12) and restrained stator means (14), and in use of which the rotor energy is substantially dissipated as heat in the stator means. A cooling arrangement (16) for the stator means comprises passage means (62,63)... | 04/16/1996 |
| 5447060 | Chasis dynamometer with improved torque measurement A chassis dynamometer is described which is especially adapted for road simulation. A torque transducer is connected in the roll assembly so that the torque signal is not influenced by bearing friction. The torque transducer outer element is rigidly attac... | 09/05/1995 |
| 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 |
| 5345827 | Absorption dynamometer and torque measurement therefor 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... | 09/13/1994 |
| 5086647 | Power testing apparatus A power testing apparatus includes a brake mechanism which is operated to brake an inertial load adjusting flywheel at a desired timing. A clutch is provided for controlling transmission of an inertial load from the adjusting flywheel to a tested object. ... | 02/11/1992 |
| 4989458 | Apparatus for detecting torque for oscillation-type electric dynamometer An apparatus for detecting a torque quantity of an oscillation-type electric dynamometer which comprises a vibration detector installed on a torque arm extended from an oscillator of the dynamometer for detecting the vibration of the torque arm in the dir... | 02/05/1991 |
| 4773261 | Test stand and method of testing the tracking characteristics of a crawler tractor A test structure and a method for measuring speeds of rotary drive members on opposite sides of a track laying tractor so as to correct potential mis-tracking on the tractor. The test structure includes a mechanical drive simulating ground coupling betwee... | 09/27/1988 |
| 4758967 | Computer simulated inertia for motor vehicle powertrain testing The large rotational inertia applied to a driveline component during normal driving conditions is simulated in a test stand that contains a component that driveably connects an input motor and an output motor. A computer repetitively executes an algorithm... | 07/19/1988 |
| 4753116 | Dynamometers A drum shaft assembly for a drum dynamometer includes at least one annular inertia element on the shaft and releaseably couplable to the shaft and drum to vary the inertia thereof. The assembly carries first interrupted thread means releasably engageable ... | 06/28/1988 |
| 4688419 | Flywheel assembly for dynamometers An improved mechanical flywheel assembly for a chassis dynamometer. The flywheel assembly includes a plurality of flywheels journalled to a stationary shaft located within a cylindrically-shaped drum that is directly coupled to the rollers of the dynamome... | 08/25/1987 |
| 4680975 | Test stand for power plants and method Test stands for power plants generally include a power absorbing unit for absorbing the power of the plant under test. The allowable measuring speed of the power absorbing unit depends on permissible additional weight on the coupling flange which serves t... | 07/21/1987 |
| 4669318 | Apparatus for dynamometer testing of motor vehicles Apparatus for dynamometer testing of motor vehicles comprising load absorbing means in the form of a hydrostatic pump assembly which has an input shaft adapted to have a flexurally rigid engagement with a driven vehicle shaft using a rigid coupling. The c... | 06/02/1987 |
| 4596154 | Testing procedure and apparatus for manufacturing of electrical drives with low output RPM Method and apparatus for testing electrical drive mechanism. A dog plate engages each drive and the drive is energized to rotate a pulley coupled to the dog plate. A weight is attached to the pulley by means of a cable. A controller energizes the drive, m... | 06/24/1986 |
| 4583411 | Dynamic torque monitoring device A method and apparatus for dynamically testing a rotational torque producing device (22) during calibration under conditions simulating actual operating conditions. The torque produced by the torque producing device under controlled (28) load conditions s... | 04/22/1986 |
| 4567778 | Coupling assembly for engine dynamometer A quick connect and disconnect coupling assembly for coupling a dynamometer to an engine wherein the coupling assembly may be used for both automatic and manual transmission engines. The coupling assembly includes a plurality of circumferentially spaced a... | 02/04/1986 |
| 4478090 | Dynamometer controllers A dynamometer controller comprising circuit means for accomplishing numerous improvements including means to convert the reactive load cell torque value into a true torque value instantaneously using an extremely simple passive circuit; a three mode contr... | 10/23/1984 |
| 4341123 | Torque-measuring tape cassette A cassette for measuring the torque output of the tape drive of a cassette recorder and/or player has a housing with two hubs, to which the ends of a tape are connected. A slide is displaceable against the force of a spring and carries a tape-deflecting r... | 07/27/1982 |
| 4340847 | Apparatus for supervising and controlling the output power of induction motors An apparatus for supervising and/or controlling the output power of an induction motor comprising means for generating a first voltage signal (Ha) which varies with the actual speed of the motor, means for generating a second voltage signal (S) correspond... | 07/20/1982 |
| 4324133 | Torque measuring device A torque measuring device is disclosed wherein a torque of a rotating member rotating about an axis is measured. The device includes a support member which is attached to a fixed object such as a stationary frame by at least two linkage arms. Each linkage... | 04/13/1982 |
| 4246779 | Method of determining motorcycle power output A motorcycle power take-off drive system is disclosed for driving a dynamometer from either a chain drive or a shaft drive motorcycle having either right or lefthand chain or shaft drive connections. A support housing is straddled by the rear frame elemen... | 01/27/1981 |
| 4199979 | Test stand A test stand including a coupling for coupling a dynamometer to a drive sprocket of a vehicle to be tested and including a housing adapted to be rotated about an axis and having elongated guides in a plane generally transverse to the axis, at least two sl... | 04/29/1980 |
| 4182166 | Dynamometer test stand A test stand including a dynamometer having a housing with two parts relatively rotatable about an axis, one of the parts defining an end of the dynamometer and serving as a rotary input adapted to be coupled to a rotary output of a mechanism to be tested... | 01/08/1980 |
| 4179923 | Cradle mounted dynamometer A dynamometer is connected to a foundation by two pairs of leaf springs. One end of the leaf springs is firmly connected to the dynamometer and the other ends are connected to the foundation by pivot joints, which absorb rotation, oscillation and axial mo... | 12/25/1979 |
| 4176547 | Torque correlation ring A torque correlation ring is disclosed which forms a part of a test stand useful in measuring performance of aircraft turboshaft engines. The torque ring assembly comprises two annular rings separated from each other by four short equally spaced beams. On... | 12/04/1979 |
| 4154097 | Apparatus and method for measuring motor power A dynamometer and method for determining the power of a prime mover includes drive means mounted for rotation by a prime mover, and oscillatory means adapted to move in a linear reciprocal manner. Translation means are provided whereby the rotary motion o... | 05/15/1979 |
| 4092855 | Dynamometer and coupling for a test stand A dynamometer including a housing comprised of first and second parts relatively rotatable about an axis and defining a chamber, at least one brake element within the chamber carried by each part, the brake elements being in adjacency and relatively movab... | 06/06/1978 |
