Class / Patent application number | Description | Number of patent applications / Date published |
073082000 | Impact type | 29 |
20080282783 | Apparatus for Detecting Mechanical Features of Materials - An apparatus ( | 11-20-2008 |
20090056427 | Methods and instruments for materials testing - Methods and instruments for characterizing a material, such as the properties of bone in a living human subject, using a test probe constructed for insertion into the material and a reference probe aligned with the test probe in a housing. The housing is hand held or placed so that the reference probe contacts the surface of the material under pressure applied either by hand or by the weight of the housing. The test probe is inserted into the material to indent the material while maintaining the reference probe substantially under the hand pressure or weight of the housing allowing evaluation of a property of the material related to indentation of the material by the probe. Force can be generated by a voice coil in a magnet structure to the end of which the test probe is connected and supported in the magnet structure by a flexure, opposing flexures, a linear translation stage, or a linear bearing. Optionally, a measurement unit containing the test probe and reference probe is connected to a base unit with a wireless connection, allowing in the field material testing. | 03-05-2009 |
20090199625 | Apparatus for Determining Breakage Properties of Particulate Material - An apparatus for determining the breakage properties of a particulate material, the apparatus including: a support; a rotor mounted relative to the support and including at least one guide channel through which a particle of the particulate material is guided in use, the guide channel having an inlet and an outlet; a drive associated with the rotor; a feed channel for feeding particles of the particulate material to the inlet of the guide channel; a stator associated with the rotor and including an impact surface that is radially spaced from a circumferential edge of the rotor; and a collector for collecting pieces of the particulate material following impact; wherein the apparatus is provided with a control system for accurate control and adjustment of impact velocity of the particulate material with the impact surface. | 08-13-2009 |
20100132441 | MICROMACHINED COMB DRIVE FOR QUANTITATIVE NANOINDENTATION - A microelectromechanical (MEMS) nanoindenter transducer including a body, a probe moveable relative to the body, an indenter tip coupled to an end of the moveable probe, the indenter tip moveable together with the probe, and a micromachined comb drive. The micromachined comb drive includes an electrostatic actuator capacitor comprising a plurality of comb capacitors configured to drive the probe, together with the indenter tip, along a displacement axis, including in an indentation direction, upon application of a bias voltage to the actuation capacitor. The micromachined comb drive further includes a plurality of sensing capacitors forming a differential capacitive displacement sensor, each sensing capacitor comprising a plurality of comb capacitors and each configured to provide capacitance levels which, together, are representative of a position of the probe, wherein each of the comb capacitors of the actuator capacitor and the sensing capacitors includes a fixed electrode comb coupled to the body and a moveable electrode comb coupled to the probe. | 06-03-2010 |
20100192680 | APPARATUS FOR HARDNESS MEASUREMENT BY IMPACT - The apparatus comprises an actuator ( | 08-05-2010 |
20100212411 | Tip Indenting Apparatus for Testing a Block of Material - The invention relates to a tip indenting apparatus for testing a block of material, characterized in that it comprises: a holder for the tip and a holder for a block of a material to be punched or scratched, said tip holder and said block holder each comprising a solid body made of heat conducting material; securing means for removably securing the tip or the block in thermal-conducting contact to said solid body; an annular sheath having a shape corresponding to that of said solid body and in which said solid body is provided; heating means comprising at least one electric heater; and means for assembling the solid body and the heating means; wherein, during a test, the tip can be heated at a predetermined temperature, in particular a temperature essentially equal to that of the block of material to be tested. | 08-26-2010 |
20100281963 | NANOINDENTER TIP FOR UNIAXIAL TENSION AND COMPRESSION TESTING - The invention is an indenter tip that is modified to permit both compression testing and tensile testing on samples having dimensions smaller than approximately 1 μm. The modified indenter tip has both a surface that can be used to apply compressive forces, and tines that can be used to engage a free end of a specimen to be tested in tension. The apparatus used to perform the tests includes elements of a scanning electron microscope that permit visualization of the specimen to be tested and the modified indenter tip, so as to permit appropriate alignment and engagement of the same. The apparatus also includes elements of a microindenter that provide mechanical manipulation of the relative position and orientation of the modified indenter tip and of the specimen to be tested, as well as the necessary controls and instrumentation to perform the test and to collect, record and manipulate data. | 11-11-2010 |
20100281964 | DEVICE AND METHOD FOR ASSESSING THE MACHINABILITY OF LAMINATES - A device and method for assessing the machinability, particularly the drillability, of epoxy resin laminates by reproducible indentation and analysis of the delamination area of a laminate sample thus provoked. | 11-11-2010 |
20110179857 | METHOD OF TESTING SOFTNESS ATTRIBUTES OF PAPER TOWEL PRODUCTS - An apparatus for conducting demonstrations of the softness properties of consumer products and other materials, plus a method for conducting such demonstrations, is provided. A sample of paper towels, toilet tissue, or facial tissue, or other consumer products is placed in the apparatus. The apparatus drops an egg or other fragile object onto the sample, or the egg may be dropped from an operator's hand into the apparatus and onto the sample. By displaying the egg or fragile object as it either lands safely on a sample or is destroyed on impact, the operator can visually demonstrate to an average consumer either the softness properties of the sample, or the lack thereof. A method of preparing samples in a consistent manner is also provided to ensure that results are as fair, uniform and repeatable as possible. | 07-28-2011 |
20110226046 | Method and apparatus for testing consistency of frozen beverages - A method and apparatus using a sample test container filled with beverage, a penetrator holder, a penetrator and release means is disclosed. In the method a sample, is drawn into the test container and the penetrator dropped into the sample, and a reading of the stiffness of the sample is made based on the depth of penetration of the penetrator onto the sample. | 09-22-2011 |
20120085155 | PORTABLE POLYMER TESTER - The present invention provides a polymer indentation method and tester that includes measuring the time taken by a polymeric material to recover a set portion of an initial deformation and use this duration as a material degradation indicator. The recovery time was found to be more sensitive to cable degradation than the specific compressive stiffness (or indenter modulus) measured during the indentation phase, and this high sensitivity was achieved for both thermally aged and irradiated polymer samples. | 04-12-2012 |
20130055797 | EVALUATION OF GROUND SURFACE HARDNESS - Evaluating ground surface hardness for a site involves using a mobile data collection device to automatically drop an object including an accelerometer onto a ground surface at sample locations spaced at regular intervals within the site. The acceleration of the object is detected with the accelerometer as the object impacts the ground surface at the sample locations. A value is generated representative of ground surface hardness for each of the sample locations. Evaluation using a handheld hardness measurement device is also disclosed. | 03-07-2013 |
20130174653 | HARDNESS TESTER AND PROGRAM - The present invention provides a hardness tester capable of accurately detecting a point where an indenter contacts a sample in instrumented indentation testing. Prior to beginning measurement, the hardness tester defines an expected range for a value for a displacement, speed, or acceleration of an indenter during a process of approaching a sample. After measurement has begun, the hardness tester measures the value for the displacement, speed, or acceleration of the indenter during the process of approaching the sample. When the measured value is not within the expected range, the hardness tester determines that detection of a zero point has failed. | 07-11-2013 |
20140102184 | PORTABLE BRINELL HARDNESS TESTER - A portable Brinell metal hardness tester has a test head mounted in a carriage, movable vertically along elevating screws, and includes an adjustable valve for relieving hydraulic pressure within the test head where the valve includes a stem, an interior member, and an intermediate member. | 04-17-2014 |
20140109660 | DRILLING MEASURING DEVICE, EXCHANGEABLE NEEDLE CARTRIDGE, EXCHANGEABLE DOCKING DEVICE, AND EXCHANGEABLE TOOL - Disclosed herein is an exchangeable needle cartridge for a drilling measuring device with a guiding device for a drilling needle. The guiding device includes a telescopic tube with a plurality of telescopic tube sections which extends between a working end, at which a retainer for retaining the drilling needle in a rotationally fixed manner is arranged, and a docking end, at which a docking device for coupling the telescopic tube to a driving device of the drilling measuring device is arranged. Also disclosed is a docking device comprising a coupling device for transmitting torque from the driving device of the drilling resistance measuring device to the telescopic tube, a transmission device for converting the rotational motion of the driving device of the drilling measuring device into a linear motion of the telescopic tube, and furthermore structure for detachably fastening the exchangeable needle cartridge to the drilling measuring device. | 04-24-2014 |
20140230529 | PORTABLE BRINELL HARDNESS TESTER - A portable Brinell metal hardness tester has a test head mounted in a carriage, movable vertically along elevating screws, and includes an adjustable valve for relieving hydraulic pressure within the test head where the valve includes a stem, an interior member, and an intermediate member. | 08-21-2014 |
20140245819 | AUTOMATIC IMPULSE HAMMER FOR CHARACTERIZATION OF MECHANICAL PROPERTIES OF A MATERIAL - A method for determining mechanical properties of a material includes positioning a probe tip of selected material properties having a selected geometry and a selected accelerating mass at a selected position and a selected height above a sample of the material. The probe tip is released to accelerate toward the sample. A first parameter related to force on the probe tip with respect to time is recorded. The releasing the probe tip is repeated with at least one of a different selected probe tip material, a different tip geometry, a different height and a different accelerating mass to record a second parameter related to force. The first and second parameters are used to determine at least one of an elastic property and a strength of the material. | 09-04-2014 |
20140373608 | SCRATCH TESTING APPARATUS AND METHODS OF USING SAME - Provide in one embodiment is an apparatus, comprising an indentor wherein a tip thereof is configured to engage a sample surface, a surface-referencing device configured to establish the position of the indentor relative to the sample surface, a drive mechanism configured to move the indentor along the sample surface to form a scratch, and a measurement device configured to measure at least one of (i) a pile-up height of sample material removed from the scratch and (ii) a width of the scratch. | 12-25-2014 |
20150033835 | HIGH TEMPERATURE HEATING SYSTEM - A heating system for use in mechanical testing at scales of microns or less includes a stage heater. The stage heater having a stage plane, and a stage heating element distributed across the stage plane. Two or more support mounts are on opposed sides of the stage plane. A first bridge extends from the stage plane to a first mount of the two or more support mounts, and a second bridge extends from the stage plane to a second mount of the two or more support mounts. The first and second bridges provide a plurality of supports between the stage plane and two or more support mounts to accordingly support the stage plane. In another example, the heating system includes a probe heater configured to heat a probe as part of mechanical testing. | 02-05-2015 |
20150068292 | METHOD FOR DETERMINING GEOMECHANICAL PARAMETERS OF A ROCK SAMPLE - The present invention relates to a method for determining geomechanical parameters of a rock sample, including a searching step, during which the horizontal and vertical forces provided to a blade advancing at a constant speed and at a constant cutting depth along the sample are measured, in order to destroy a constant volume per unit of length at the surface of the rock sample; a micro-indentation step, during which mechanical features of the rock are determined by micro-indentation; a step of determining the geological parameters of the sample, during which at least one parameter chosen from the uniaxial compressive strength, the angle of friction, internal cohesion, Brinell hardness and Young's modulus of the rock is estimated by means of measurements taken during the scratching and micro-indentation steps. | 03-12-2015 |
20150090016 | PORTABLE POLYMER TESTER - The present invention provides a polymer indentation method and tester that includes measuring the time taken by a polymeric material to recover a set portion of an initial deformation and use this duration as a material degradation indicator. The recovery time was found to be more sensitive to cable degradation than the specific compressive stillness (or indenter modulus) measured during the indentation phase, and this high sensitivity was achieved for both thermally aged and irradiated polymer. | 04-02-2015 |
20150121997 | NON-DESTRUCTIVE MEASUREMENT OF MECHANICAL PROPERTIES OF AN ELLIPSOIDAL SHELL - Systems and methods that facilitate the determination of mechanical properties of an ellipsoidal shell are provided in this disclosure. The ellipsoidal shell is contacted with an indenter device. The indenter device indents the ellipsoidal shell and creates an indentation in an indentation region on the ellipsoidal shell. Indentation data is recorded at the indentation region. Mechanical properties of the ellipsoid shell can be determined based on the indentation data. | 05-07-2015 |
20150128686 | Hardness tester apparatus - A hardness tester apparatus is disclosed for testing the hardness of a roll of material. The apparatus includes a housing having a first portion which is held by an operator. A socket panel defines a socket and an impulse hammer is connected to a plug received by the socket such that when the operator strikes the roll of material with the impulse hammer, a signal is generated which is transmitted to the plug. A hardness information collecting device is electrically connected to the socket. A display is electrically connected to the hardness information collecting device for displaying a reading corresponding to the hardness of the roll of material. | 05-14-2015 |
20150293000 | METHOD FOR EVALUATING THE COMPACTNESS OF A LAYER OF RAILWAY LINE BALLAST, DEVICE FOR IMPLEMENTING SAME AND METHOD FOR PREDICTING THE COMPACTION OF SAID LAYER OF BALLAST - The method for evaluating the compactness of a layer of railroad ballast near a railroad tie includes at least one step of taking at least two measurements ( | 10-15-2015 |
20150316459 | DEVICE TO POSITION AND ALIGN A ROTATIONALLY-SYMMETRICAL BODY - The invention relates to a device to position and align a rotationally-symmetrical body ( | 11-05-2015 |
20150323437 | APPARATUS AND METHOD TO MEASURE DUROMETER HARDNESS AT, ABOVE, AND BELOW ROOM TEMPERATURE - An apparatus and its method of use to measure indentation hardness of rubber materials at, above or below room temperature according to the standard test method ASTM D2240. | 11-12-2015 |
20150362416 | PORTABLE BRINELL HARDNESS TESTER WITH STENTED THROUGH BORE PUMPING CHAMBER - A portable Brinell metal hardness tester has a test head mounted in a carriage, movable vertically along elevating screws, and includes a reciprocable pumping rack movable in response to manual movement of a pumping lever, for pumping hydraulic fluid into a passageway of the tester to increase hydraulic fluid pressure in the tester to a level required for metal hardness testing; and a stent located in the passageway for permitting pumped hydraulic fluid to flow through the passageway into a test head portion of the tester to apply hydraulic fluid to the ball contacting the test piece and interferingly stopping the rack upon movement of the rack into the passageway by a preselected amount. | 12-17-2015 |
20160018308 | HARDNESS TESTER - A hardness tester includes: a tester main body, an inputter receiving an operation input from a user, a controller controlling an entirety of the hardness tester including the inputter, and a display which displays a predetermined image by being controlled by the controller. The controller includes a measurement procedure suggester and a suggestion switcher. The measurement procedure suggester suggests a procedure for measuring an indentation dimension value to the user. When receiving an operation input for proceeding to a subsequent procedure via the inputter, the suggestion switcher switches suggestions from the measurement procedure suggester and suggests the subsequent procedure to the user. | 01-21-2016 |
20160153881 | MEASURING HEAD FOR NANOINDENTATION INSTRUMENT AND MEASURING METHOD | 06-02-2016 |