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7614275 |
Method and apparatus for determining coefficient of friction
The coefficient of friction of an elastomeric sample can be determined by: (a) providing a friction test machine having a rigid wheel with an outer surface defining a curvilinear friction surface,...
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7600411 |
Surface friction testing apparatus
Surface testing friction apparatus comprises a trolley and an inclined ramp. The trolley and ramp are arranged such that a slider on the trolley comes into contact with the surface during a test...
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7591166 |
Tactile sensor and use thereof
A tactile sensor of an embodiment of the present invention includes: a sensing section having an elastic member at a portion which contacts a measurement target; an image acquiring section for...
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7591167 |
Methods and systems for measurement of tire rolling resistance
Method and apparatus for testing tires to measure the rolling resistance generated while a tire rolls under a radial load, the method including the steps of mounting two tires on spindles having...
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7584646 |
Device for measuring coefficient of friction
A device for measuring the coefficient of friction between a test surface and a test material, comprising a frame, a skid pad comprising the test material and attached to an underside of the frame...
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7584645 |
Apparatus and method for measuring friction forces
According to an exemplary embodiment, a set of three-dimensional force sensors is used, distributed on one face of a support. Each sensor outputs signals representative of a force applied by an...
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7509847 |
Roadway grip tester and method
A method for measuring-road surface friction of a road surface uses a vehicle that moves across the road surface wherein (1) an auxiliary independent wheel assembly is towed behind the vehicle and...
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7483794 |
Method for predicting the wear of a tire and system for implementing it
A technique for predicting the wear of at least one tire whose tread has pattern elements and which is fitted to a terrestrial motor vehicle, and a system for implementing the technique that...
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7472577 |
Hair sensor
A hair sensor, which can suppress mixing of external noise to a minimal level when a sliding sound of hair is detected, amplified, and output as an audio output in order to estimate surface...
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7454948 |
Method of measuring coefficient of dynamic friction between golf ball and collisional plate
By bringing a golf ball into collision with a collisional plate and measuring a coefficient of dynamic friction at this collision, contact force at the time of collision between an actual golf club...
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7426855 |
Method and apparatus for testing the adhesive strength of overlays of plain bearing bushings
A method and an apparatus for testing the adhesive strength of overlays attached to the inside of plain bearing bushings. The method is characterized in specifying clearance between the plain...
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7398669 |
Test apparatus and method of measuring surface friction of a brake pad insulator material and method of use of a brake dynamometer
A test apparatus for measuring surface friction of a damping material such as brake pad insulator material includes a rotor configured to support the damping material for rotation therewith, an...
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7373800 |
Friction test apparatus and method
A friction test apparatus includes a base structure and a receptacle secured to the base structure. At least three lower friction surfaces are positioned in the receptacle. The friction test...
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7299571 |
Ease of ironing measuring apparatus and method
An apparatus to measure ease of ironing comprises a base supporting a vertical rail assembly; a lockable roller bearing block that rolls vertically on a vertical rail assembly for locking and...
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7290436 |
Device for measuring the static and/or dynamic friction coefficient of a surface
The present invention relates to a device for measuring the static and/or dynamic friction coefficient of a surface, in particular a natural or artificial grass surface, which device comprises a...
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7257984 |
Miniaturized sensor device for detecting characteristics of a fluid, in particular a lubricating oil
A miniaturized sensor device comprises at least one pair of active projecting elements or cantilevers, which are set parallel to one another and at a micrometric or sub-micrometric distance apart...
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7240562 |
Method for modeling material constitutive behavior
In modeling material constitutive behavior, a methodology determines tool-chip friction and a position of a stagnation point on a cutting tool. The methodology includes measuring a ratio of cutting...
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7237445 |
Test fixture for the aging of wiper blades in a laboratory
A test fixture facilitates the laboratory testing of windshield wiper blades for vehicles. The test fixture includes a base frame on which are mounted a number of windshield wiper arms oriented...
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7234339 |
Road surface frictional coefficient estimating apparatus
A braking/driving force fx is calculated at S 102 , and a lateral force Fy is calculated at S 103 . At S 104 , reference is made to a preset map to select a road surface μ estimation part to be...
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7216526 |
Method and apparatus for measuring vane wear in a sliding vane rotary pump
The amount of wear on the vanes of a sliding vane rotary pump is determined by inserting a wear inspection dip stick into a wear inspection port providing in a housing of the sliding vane rotary...
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7201060 |
Apparatus and method for determining in situ pore fluid and soil properties using multi-sensor measurement systems
An apparatus and methods for determining in situ pore fluid and soil properties at a particular subsurface location are disclosed. In one embodiment, the apparatus comprises a penetrating tip...
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7188516 |
Friction testing apparatus
A testing apparatus for measuring the friction characteristics between two components in rolling or sliding contact with one another is disclosed herein. The testing apparatus includes a traction...
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7171297 |
Road surface condition determination apparatus
A comparison/determination part 7 recieves the input of a front wheel speed filtered value ωfF from a front wheel speed filtered value calculation part 5 and a rear wheel speed filtered value...
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7117716 |
Dynamic friction testing vehicle to measure fluid drag and rolling friction
A portable Dynamic Testing Vehicle able to test for surface friction, drag, and travel distance, through contaminates accounting for longitudinal and lateral acceleration. The DFT is completely...
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7113858 |
Road surface friction sensor and road surface friction coefficient detector, and vehicle antilock braking device
A method for cyclically controlling the braking of a vehicle includes the following steps: (a) detecting a road surface frictional force of said vehicle, (b) detecting a brake fluid pressure, and...
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7096713 |
Testing assembly and clamping fixture for measuring friction and loosening torque at different temperatures
A testing assembly measures the friction of a coating of a test piece having a defined length. The testing assembly comprises a base and a tower fixedly secured to the base. A receiving channel...
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7085465 |
Optical fiber and method of measuring coefficient of kinetic friction of optical fiber
An optical fiber of the present invention comprising a bare optical fiber and one or plural coating layers on the bare optical fiber, wherein Y, the Young's modulus of the outermost coating layer...
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7050605 |
Designing tread with fractal characteristics
A methodology is provided for designing traction surfaces intended to grip and provide traction on substrate surfaces. Fractal geometry is used to design tire treads, shoe treads, elastomeric...
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7047152 |
Method and a system for evaluation of static friction
A method for evaluation whether oscillations in a control process depend on static friction in an actuator. A signal from the actuator or the signal from the process is measured. The measured...
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7013706 |
Friction force measurement apparatus
A friction force measurement apparatus which measure friction force between a fixed member fixed on a main body of a magnetic tape drive and a magnetic tape abrading the fixed member is...
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7000451 |
Friction testing device
A device for the determination of the frictional characteristics of large surfaces comprising: a frame; a drive motor mounted atop the frame; a drive train; a horizontal measurement arm attached to...
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6997070 |
Methods of promoting sleep systems
A method for selecting a sleep system comprises positioning a person on a mattress in a lying position. One of the person's arms extends generally perpendicular to the person's torso. A first...
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6989205 |
Hydrophilic side-chain polymer electrolyte membranes
Exemplary methods for the characterization of proton dissociation and transport for hydrophilic components of hydrated Polymer Electrolyte Membranes (PEM's) is described. Disclosed features and...
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6981400 |
Slip meter for determination of surface slip resistance
A slip resistance measuring device features a magnetic actuator pivotally mounted on a portable frame positioned on a test surface to apply a linear force to a test specimen for engagement with the...
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6981401 |
Method for testing properties of corrosive lubricants
A method of testing corrosive lubricating media using a wear testing apparatus without a mechanical seal. The wear testing apparatus and methods are effective for testing volatile corrosive...
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6931912 |
Road surface friction coefficient estimating method, signal multiplex transmission method and signal multiplex transmission device
A method for directly and accurately estimating friction coefficient of a road surface independently from the slip rate is disclosed. The method measures tangential and vertical forces acting on an...
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6928857 |
Apparatus for continuous measurement of road surface friction
A method and apparatus for continuously or at a rapid rate of repetition measuring friction between a road surface and a tire, especially suitable for evaluating the severity of visually...
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6923038 |
Device for measuring of friction
The present invention concerns a device to be mounted on a vehicle that is in a position to measure, by means of own equipment, different data which is important for the road safety on roads and...
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6889424 |
Head stack assembly installation system for a disc drive
A head stack assembly installation system with a frame supporting a head stack installation tool including a robotic assembly supporting a measurement assembly communicating with a computer hosting...
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6886387 |
Brush pressure calibration apparatus and method
A novel apparatus and method for calibrating the gap distance between adjacent scrubber brushes with the frictional force of the brushes against a wafer, is disclosed. The apparatus includes a...
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6860139 |
Apparatus for measuring green-speed
Method and apparatus for measuring the green-speed of a putting green including a golf ball rolling ramp. The ramp is supported by adjustable length legs above a green surface at a selected angle....
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6857306 |
Four-ball wear and friction test apparatus
A four-ball test apparatus for evaluation of friction and wear characteristics of lubricants is disclosed. The test apparatus includes a motor and adjustable weight assembly that is supported by...
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6854316 |
Device for measuring the static and/or dynamic friction coefficient of an artificial grass lawn for sports fields
A device for measuring the static and/or dynamic friction coefficient of a surface, in particular a natural or artificial grass surface, in which the device includes a frame to which a first arm is...
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6848168 |
Method for controlling installation of a head stack assembly
Method for controlling installation of a head stack assembly in a disc drive. The head stack assembly is aligned in a head stack installation tool. A base deck assembly is advanced to the head...
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6840082 |
Machine for testing wear, wear-preventative and friction properties of lubricants and other materials
A machine adapted for testing wear, wear-preventative and friction characteristics between a rotating specimen axially loaded against one or more non-rotated test specimens includes a load...
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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...
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6840098 |
Roadway friction tester and method
A method for measuring road surface friction of a road surface uses a vehicle that moves across the road surface. An auxiliary independent wheel is interposed between the vehicle and the road...
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6817222 |
Method, apparatus and system for assessing hair condition
Method for measuring friction in a hair sample, comprising: (a) providing a friction member; (b) drawing it through the hair, generating a frictional noise signal; and (c) capturing the signal by a...
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6817223 |
Compact tribology tester
An apparatus for testing properties of materials under operating conditions of the materials. The apparatus includes a hermetically sealed vessel in which a tribology tester is mounted. The...
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6802203 |
Rotary seal testing machine
A rotary seal machine is provided and includes a motor drive shaft which extends into and through a canister. A test seal specimen surrounds the shaft in the outer wall, and contaminant circulates...
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