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An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 7827846 | Monitoring of wearing surface layer thickness A method of wear level determination and an associated product. Multiple Radio Frequency IDentification (RFID) tags are distributed within a thickness of a wearing surface layer of a tire. The multiple RFID tags include first RFID tags that have not been worn away, ... | 11/09/2010 |
| 7509834 | Monitoring of wearing surface layer thickness A method and associated product for wear level determination. Data is received from at least one Radio Frequency IDentification (RFID) tag within a thickness of a wearing surface layer of each product of at least one product. The wearing surface layer of each produc... | 03/31/2009 |
| 7503202 | Design technique for selecting a bituminous mixture for use in a hot in-place recycling process A method of reconstructing a road by selecting a bituminous mixture for repairing a paved surface and re-paving the surface using a hot in-place recycling process. Selection includes adding and mixing various types and amounts of bitumens with a reclaimed sample of ... | 03/17/2009 |
| 7370542 | Flat belt durability tester The apparatus is a multi-speed flat belt durability tester that can simultaneously test several belts of different lengths. The tester can apply different tensions to each belt with a tension pulley powered by a hydraulic cylinder, and it monitors the tracking of th... | 05/13/2008 |
| 7369949 | Electromagnetic flowmeter An electromagnetic flowmeter includes a measuring tube, an electrode, an exciting unit, a signal conversion unit, and a flow rate calculating unit. The signal conversion unit extracts a ∂A/∂t component irrelevant to a flow velocity of the fluid and a v×B compon... | 05/06/2008 |
| 7349778 | Real-time vehicle dynamics estimation system A real-time vehicle dynamics estimation system that employs a vehicle parameter estimator, a vehicle condition detector and a rich steering input detector for estimating vehicle understeer coefficient and front and rear cornering compliances in real time. The vehicl... | 03/25/2008 |
| 7228732 | Tire wear analysis method A method of developing a set of input forces used to analyze tire wear includes the steps of characterizing a wear course by driving a vehicle over the wear course and measuring data related to a plurality of forces experienced by the vehicle. A vehicle characteriza... | 06/12/2007 |
| 7219747 | Providing a local response to a local condition in an oil well A method and apparatus for providing a local response to a local condition in an oil well are disclosed. A sensor is provided to detect a local condition in a drill string. A controllable element is provided to modulate energy in the drill string. A controller is co... | 05/22/2007 |
| 7205886 | Tire pressure monitoring system A vehicle C is provided with four wheel speed sensors VS (VSfl, VSfr, VSrl, VSrr) (wheel vibration detection means) for detecting wheel speed V (Vfl, Vfr, Vrl, Vrr) at respective four wheels W (left and right front wheels Wfl, Wfr and left and right rear wheels Wrl,... | 04/17/2007 |
| 7182978 | Method and device for the prevention of wall adherences in shafts on the introduction of particles A process for inhibiting agglutination in an upright duct when particles are introduced, where at least some parts of the walls of the upright duct are wetted with a film of liquid, and where the liquid used includes a dispersing agent or solvent appropriate for the... | 02/27/2007 |
| 7130032 | Alternate test method for RF cable testing to avoid long test cables A method is provided for measuring insertion loss in cables. The method comprises the steps of measuring a first insertion loss IL12 of a first circuit path including the series connection of a first cable and a second cable, measuring a second insertion ... | 10/31/2006 |
| 7032436 | Method for estimating vehicular running state, vehicular running state estimating device, vehicle control device, and tire wheel The output level of vibration of a portion below the spring of a vehicle detected by a sensor, and its frequency is converted to obtain the frequency spectrum of the vibration level. Next, an operation is carried out on at least two vibration levels, at different fr... | 04/25/2006 |
| 7032689 | Method and system for predicting performance of a drilling system of a given formation A method and apparatus for predicting the performance of a drilling system for the drilling of a well bore in a given formation includes generating a geology characteristic of the formation per unit depth according to a prescribed geology model, obtaining specificat... | 04/25/2006 |
| 6956384 | Linear displacement transducer with improved accuracy The present invention relates to a linear displacement transducer with improved accuracy, in which stable contact is achieved by forming contacts coming into contact with resistors in a elastic linear contact type, rather than a conventional point contact type, usin... | 10/18/2005 |
| 6940448 | Method and device for ascertaining the imminence of an unavoidable collision A method and a device for ascertaining the imminence of an unavoidable collision of a vehicle with an object, all locations within a determinable prediction time interval being predetermined as a function of the maximum possible longitudinal acceleration and lateral... | 09/06/2005 |
| 6922617 | Vehicle control device and vehicle control method An estimating unit 7 estimates an element aij of a system matrix based on state quantity including at least a longitudinal force Fx applied to a wheel, a vertical force Fz applied to the wheel and a vehicle speed V. A setting unit 8 sets a target value... | 07/26/2005 |
| 6840097 | Inspection apparatus for tires The present invention relates to an inspection apparatus for tires having a positioning device for the tire to be inspected and a laser inspection device. In accordance with the invention, the inspection device comprises several measuring heads, in particular laser ... | 01/11/2005 |
| 6804998 | Method of wear testing a tire A method for indoor wear testing tires includes the steps of characterizing a vehicle and a wear test course and combining the characterized data to create input data for an indoor wear test machine. The input data allows the indoor wear test machine to accurately s... | 10/19/2004 |
| 6789416 | Hand held probe for measuring tire tread wear A hand-held probe (10) for measuring a tire tread profile comprises a housing (20) with a slit (64) formed parallel to its major axis, a range finder (70) mounted inside the housing (20) in such a way that it can traverse much of t... | 09/14/2004 |
| 6787714 | Electronic balance Protruding part of a mechanism body is connected to a base frame by screws, and other protruding part is connected to an auxiliary connecting metal fittings by the screws. A machining necessary for connecting is conducted on the protruding portions, the widths of wh... | 09/07/2004 |
| 6681614 | Apparatus for testing co-efficient of friction of a road surface An apparatus (20) for testing the co-efficient-of friction of a road surface (78) of a road (79) including a electronic digital device (22) that senses through its sensor (75) the speed of a toothed sprocket wheel (71) and by which through the dropping of... | 01/27/2004 |
| 6644107 | Method and assembly for testing stress levels in a cross section of a pneumatic tire A testing assembly calculates stress levels along a cross section of a pneumatic tire. The cross section of the pneumatic tire includes its tire beads, sidewalls, and tread. The testing assembly includes a base and a plurality of mounts slidably secured t... | 11/11/2003 |
| 6591669 | Apparatus for experimentally measuring the interaction between surfaces and rubber specimens The invention relates to an apparatus (1) for testing tire compounds, which comprises a road drum (3) and a specimen (5), rotating about respective parallel axes (X, Y) and being in rolling contact with each other. The specimen (5) of rubber to be analysed is ... | 07/15/2003 |
| 6546791 | Indoor hydroplaning test apparatus and method Method and apparatus for conducting indoor hydroplaning tests on a tire. A tire is supported by a frame above a test surface and a load is applied to the tire tread against the test surface. A stream of high pressure fluid is discharged from a nozzle agai... | 04/15/2003 |
| 6532811 | Method of wear testing a tire A method for indoor wear testing tires includes the steps of characterizing a vehicle and a wear test course and combining the characterized data to create input data for an indoor wear test machine. The input data allows the indoor wear test machine to a... | 03/18/2003 |
| 6508102 | Near real-time friction estimation for pre-emptive vehicle control An improved estimator is provided for road/tire friction. The friction estimator provides near-real-time friction estimation, even while the car is accelerating, braking or turning. It is desirable to have an instantaneous and continuous estimate of the r... | 01/21/2003 |
| 6505506 | Method and device for influencing the traction of automobile tires as well as suitable automobile tires for this method A method for influencing traction of motor vehicle tires made from polymer materials which are mounted and in the operating/driving state, in particular, pneumatic tires for motor vehicles, wherein an ionized gas (plasma) is generated in the vicinity of t... | 01/14/2003 |
| 6446501 | Restrained vehicle dynamometer A method of testing at least one tire of a test vehicle provided with a sensor for measuring the forces and moments of at least one test tire, the method including coupling the test vehicle to an anchor vehicle wherein the coupling restricts the lateral a... | 09/10/2002 |
| 6427519 | Road surface friction measuring method and device therefor Provided is a road surface friction coefficient measuring method and device for measuring the friction coefficient of road surfaces such as roads and runways, and which can be used by being mounted on a general car. This device has a spindle 5 detachably ... | 08/06/2002 |
| 6360593 | Method and apparatus for reducing vibrations transmitted to a vehicle from a wheel unit Vibrations generated by the wheel units of a vehicle are reduced by a low pulsating operation that optimally simulates actual vehicle operating conditions. For this purpose the mass moment of inertia of the wheel unit and of rotating components such as th... | 03/26/2002 |
| 6263728 | Method of analyzing frictional energy of rolling tire To provide a method capable of easily analyzing frictional energy of a rolling tire, in-plane pressure Pxy(L) and vertical pressure Pz(L) at one point of a tread produced by rolling the tire are measured, static frictional force R(L) is calculated and the... | 07/24/2001 |
| 6244105 | Tire uniformity machine In a tire uniformity machine in which a tire is mounted between upper and lower spindles via upper and lower rims, a rim holding apparatus 10 is composed of a parallel spindle 1 which is in parallel with the axis of tire uniformity machine, a taper collet... | 06/12/2001 |
| 6212947 | Method for estimating a tire wear life A wear resistance index G1 of a tire whose wear life is to be estimated is measured by the Lambourn abrasion tester. Then, friction energies in free rolling, when the tire is fitted with a toe angle, under application of a side force, under application of... | 04/10/2001 |
| 6170324 | Tire and rim assembly centering method A method for minimizing the radial runout of a tire and rim assembly 10 having the steps of locating the position of maximum radial runout and measuring the amount of maximum radial runout; loosening the threaded fasteners 24 attaching the rim 20 and disk... | 01/09/2001 |
| 6161429 | Dual path profilograph Apparatus for measuring two parallel spaced surface profiles is disclosed. The apparatus disclosed has dual laterally spaced beams linked to a transport device shown as a trailer that is towable by a motor vehicle. Each beam has a profiling wheel that mea... | 12/19/2000 |
| 6155110 | Method for predicting tire performance on rain groove roadways A method of testing a tire for rain groove wander is provided which allows a tire to be objectively tested in a laboratory wherein the objective test results closely correlate with subjective field analysis type data, thereby allowing for the subjective t... | 12/05/2000 |
| 6125685 | Apparatus and method for the evaluation of asphalt mixes The present invention provides and apparatus and method for analyzing the rutting and stripping characteristics of hot mix asphalt concrete samples. The apparatus of the invention measures the vertical penetration of a wheel rolling in a reciprocating mot... | 10/03/2000 |
| 6067848 | Portable tire uniformity measurement system and method A portable test apparatus (and associated method) for measuring nonuniformity of a tire/wheel assembly in situ on a wheel bearing hub of a vehicle are characterized by a lightweight assembly of components including, in particular, a probe for monitoring d... | 05/30/2000 |
| 5992212 | Device for determining coefficient of friction and level of lubrication An apparatus for determining a coefficient of friction on a surface of objects such as rails. In one embodiment, the apparatus comprises a vertical sensor assembly for determining the coefficient of friction of a top surface of a rail. A different embodim... | 11/30/1999 |
| 5874670 | Method of estimating irregular wear of tires by recording an amount of wear of painted portions of the tire as image information at multiple regular time intervals A method of estimating irregular wear of pneumatic tires, in which a deformable paint is coated on the tire tread surface in a regular manner. The wearing degree of the paint is recorded as a plurality of image information at regular time intervals, while... | 02/23/1999 |
