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...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!
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| Number | Title | Issue Date |
| 7849731 | Nanoindentation surface analysis method The present invention provides a novel method for determining the mechanical properties of the surfaces of materials including thin films. Generally, the method is comprised of laterally scanning the surface of the film with an array of cantilever tips varying tempe... | 12/14/2010 |
| 7424822 | Micro-hardness measurement method and micro-hardness meter A micro-hardness measurement method for calculating the hardness of a test sample by pushing an indenter in the test sample and forming an indentation thereon, including: a loading step for extracting load data showing the relationship between load L applied to the ... | 09/16/2008 |
| 7415900 | Blast pressure gauge Blast pressure gauges and methods for detecting blast pressure during a blast test. The gauges operate independently of power sources, are portable, and are used in harsh environments including test ranges. Each embodiment is constructed to detect blast pressures as... | 08/26/2008 |
| 7412870 | Method and apparatus for dynamic impact testing A method and apparatus wherein a material or object to be tested is placed on a base support. A stopper assembly having a stopper tip on one end in contact with the test material or object, and a washer on the opposite end attached to a rod. A projectile is propelle... | 08/19/2008 |
| 7325344 | Ground-mounted impact insertion and extraction apparatus An apparatus for impact insertion in and extraction from the ground includes a core with an upper section adapted for mounting a device, such as a sign, and a lower section with a pointed lower end. A reduced-diameter guide shaft extends between the upper and lower ... | 02/05/2008 |
| 7258022 | Micro-tensile testing system A micro-tensile testing system providing a stand-alone test platform for testing and reporting physical or engineering properties of test samples of materials having thicknesses of approximately between 0.002 inch and 0.030 inch, including, for example, LiGA enginee... | 08/21/2007 |
| 7252887 | Interlayer film for laminated glass and laminated glass The object of the present invention is to provide an interlayer film for laminated glass which exerts excellent heat insulation or electromagnetic wave transmittance and which is suitable for producing a laminated glass having excellent fundamental performance chara... | 08/07/2007 |
| 7243526 | Device and method for measuring the impact properties of a sport field surface The tuft impact tester mounts a test probe in a suspended manner from a tripod arrangement via a gimbals mechanism so that the test probe is able to move along a vertical axis. The test probe is dropped from a predetermined height, the velocity of the test probe is ... | 07/17/2007 |
| 7239154 | Soil penetrating electrode with conical taper This disclosure describes a Soil Penetrating Electrode with Conical Taper for use with instrumentation for measurement of the electrical properties of soil in situ. The Electrode shape and configuration solves problems of stable and reliable contact with the soil, r... | 07/03/2007 |
| 7196257 | Computer aided piano voicing The present invention discloses a method for determining an optimal piano hammer felt voicing technique for voicing an unvoiced tone in a piano so as to achieve a predetermined standard of tonal quality associated with a given voiced tone using a computer program. T... | 03/27/2007 |
| 7194896 | Surface hardness distribution measuring method and apparatus It is possible to blast air on a surface portion of a measured object from a hole of pressing means, project illumination light in a concentric pattern with an optical element and shoot the measured object with a CCD so as to visually grasp hardness distribution on ... | 03/27/2007 |
| 7162932 | Method for determining the modulus of elasticity of paper In a method for determining the radial modulus of elasticity of paper or a corresponding web-like material that can be reeled or wound on a reel, the connection between the force and deflection of a material arranged in layers is measured. The measurements of force ... | 01/16/2007 |
| 7162919 | Blast pressure gauge Blast pressure gauges and methods for detecting blast pressure during a blast test. The gauges operate independently of power sources, are portable, and are used in harsh environments including test ranges. Each embodiment is constructed to detect blast pressures as... | 01/16/2007 |
| 7137285 | Method and instrument for characterizing treading surfaces, for instance for realizing synthetic turf surfaces An instrument (“artificial athlete”) for characterizing, from the biomechanical standpoint, a treading surface, such as natural grass cover or synthetic grass flooring, is configured for: dropping a weight from a given height on the surface, producing the conver... | 11/21/2006 |
| 7096720 | Hardness tester A hardness tester for measuring hardness of a sample by applying a predetermined test load to the sample with an indenter attached to an indenter attaching member so as to form an indentation on the sample, comprises: the indenter attaching member to which the inden... | 08/29/2006 |
| 7066013 | Hardness tester A hardness tester includes a supporting frame having a guiding channel, a driving axle slidably disposed in the supporting frame, and a penetrating pin, having a pin head, coaxially disposed in the guiding channel in a slidably movable manner to coaxially align with... | 06/27/2006 |
| 7040146 | Soil or snow probe A soil or snow probe which incorporates a load cell in the probe head and also an accelerometer so that a vertical strength profile of the snow or soil can be established. The device does not need to be driven at a constant speed and can be manually driven into the ... | 05/09/2006 |
| 6978664 | Dual function indenter A dual function indenter for use in a nanoindentation system is disclosed. The indenter of the present invention includes an indentation tip having a machined flat at its distal end forming a compression platen. A sharp imaging probe tip adjacent the machined flat e... | 12/27/2005 |
| 6976387 | Hardness measuring device comprising a housing and a penetration body in particular a manual device The hardness measuring device (18) is provided with a) a penetration body (20), which penetrates a workpiece (28) along a penetration vector (58) during a measuring process, b) a housing (30) which embodies a guide track (32... | 12/20/2005 |
| 6973822 | Safety drive hammer for a dynamic cone penetrometer Drive hammer assembly with a drive hammer and rod is used with dynamic cone penetrometer tests. A rod end is attached to a cone penetrometer used to measure strength and density of soil. The assembly has no exterior impact zones, eliminating any chance of user injur... | 12/13/2005 |
| 6945097 | Characteristic strain and fracture resistance for scratch independently of indenter geometry The invention involves an apparatus and method for calculating characteristics of materials, such as equivalent strain, using an indenter where the method used is independent of indenter geometry. The method includes performing a scratch test to calculate the strain... | 09/20/2005 |
| 6936471 | Instrument for high throughput measurement of material physical properties and method of using same An apparatus and method for screening combinatorial libraries of materials by measuring the response of individual library members to mechanical perturbations is described. The apparatus generally includes a sample holder for containing the library members, an array... | 08/30/2005 |
| 6925858 | Turf test apparatus A drop test apparatus for determining the resiliency of playing surface comprising a missile for impacting the surface including a guide for providing substantially unrestricted free flight of the missile, a pair accelerometers carried by the missile for producing s... | 08/09/2005 |
| 6917895 | Method for determination of roll density A method for determining roll density in connection with a web reel. A known relation between the length (l), diameter (D), basis weight (b) and density (ρ) of the wound roll, formula (1) is used. Distortions caused in the measurement results by noise and other dis... | 07/12/2005 |
| 6799472 | Method of and apparatus for measuring and evaluating material strength by detecting charged particles A material strength measuring and evaluating method for measuring and evaluating of at least one of a peel strength and a fragility breaking strength of a fragile thin film. The method includes pressing an indenter into a test object and measuring an indentation loa... | 10/05/2004 |
| 6795201 | Method of objectively evaluating a surface mark A method of objectively evaluating a surface mark provides an objective test methodology for the optical quantification of surface marks. The method may include the steps of reproducibly producing a surface mark on an object and optically evaluating the surface mark... | 09/21/2004 |
| 6691564 | Hardness tester A hardness tester generally comprises a tester assembly is supported on a frame assembly. The tester assembly has a tester housing that supports a motor drivingly connected to a load cell and an indentor. The frame assembly includes a vertically oriented ... | 02/17/2004 |
| 6675637 | Touch sensor A touch sensor 10 having a stylus 12 with a tip 12A making contact with a test piece W has an operational control structure including an oscillator 3 which oscillates the stylus 12 in the axial direction; a detecting circuit 4 which detects changes of osc... | 01/13/2004 |
| 6634217 | Live line method and tool for identifying electrical conductors The present invention provides a method of live testing of the hardness of a target electrical distribution wire having a known gauge, and a tool for same, the method comprising: a) providing a hardness testing tool at the operating end of an insulated to... | 10/21/2003 |
| 6571600 | Apparatus and method for measurement of coefficient of restitution and contact time An apparatus and method for quantifying the stiffness of a golf ball or golf ball core under normal use conditions while also measuring the contact time, wherein an air cannon, or the like, is used to shoot an object horizontally against a block while the... | 06/03/2003 |
| 6536263 | Gauges for testing sand in or for golf course sand bunkers A sand penetrability gauge for golf course bunker sand, having a probe shaft for penetrating into bulk sand, a weight or spring for reproducibly applying force to advance the probe shaft into bulk sand, the probe shaft being movably connected to the weigh... | 03/25/2003 |
| 6531965 | Modular open system architecture for unattended ground sensors An unattended ground sensor for the monitoring of a remote area. The unattended ground sensor comprises a housing that supports a power source, a communications module, at least one sensor module and a mainframe module. Additionally, the unattended ground... | 03/11/2003 |
| 6526813 | Metallurgical sample magazine An accessory device for use with a microhardness tester to position a test surface of a sample in a focal plane of the microhardness tester is disclosed. The device comprises a frame having a base that attaches to a z-stage of a microhardness tester, and ... | 03/04/2003 |
| 6516655 | Device and method for testing sheet metal deformation A method and device for testing a metal part for weakness to deformation. The device includes a motor that moves a shaft and a load applicator toward and away from a part being tested. The motor is activated in accordance with a predetermined sequence and... | 02/11/2003 |
| 6499339 | Method and an apparatus for measuring the load-bearing capacity of a road surface A method and an apparatus for determining the resiliency of a road surface include a vehicle (1) that is caused to move along the road surface (3) and that exerts a load on said surface with one wheel (2). A ball of plastic material (16) is shot onto the ... | 12/31/2002 |
| 6484570 | Impression forming mechanism and hardness testing apparatus An impression forming mechanism comprises; an arm with an indentor for forming an impression on a surface of a sample, and an arm operating part for operating the arm in order to apply a force to the sample, wherein the arm operating part is disposed belo... | 11/26/2002 |
| 6457349 | Method of testing hardness of micro region A testing method is provided for determining the hardness of a micro region, using indentation curves indicating relations between observed penetration depths and indenting forces when an arbitrary shaped indenter is pushed into standard samples of plural... | 10/01/2002 |
| 6354148 | Rebound-type hardness tester A rebound-type hardness tester comprises a tubular member and an indenter hammer for undergoing axial movement therein in forward and rearward directions and for impacting a specimen and rebounding therefrom. A first detecting device detects the indenter ... | 03/12/2002 |
| 6336359 | Impression forming mechanism and hardness testing apparatus An impression forming mechanism includes; an arm with an indentor for forming an impression on a surface of a sample, and an arm operating part for operating the arm in order to apply a force to the sample, wherein the arm operating part is disposed below... | 01/08/2002 |
| 6279388 | Apparatus for calibrating hardness tester, method for calibrating the same and apparatus for evaluating dynamic characteristic of specimen A method for calibrating an apparatus for calibrating a hardness tester, the method comprising the steps of: setting a plurality of calibration points between a rated force point at which a rated force of a force measuring member is applied and a zero poi... | 08/28/2001 |
