By Loading Of Specimen (e.g., Strength Of Material Test) Patents (Class 73/788)
  • Patent number: 10656075
    Abstract: A method of laser bond inspection is provided. The method includes applying a thermochromatic energy-absorbing material to an inspection site of a test article. The method includes delivering a first amount of energy to the inspection site using a laser. The first amount of energy generates stresses in the test article. The method includes absorbing the first amount of energy into the thermochromatic energy-absorbing material to produce an observable thermal response that correlates to the first amount of energy.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: May 19, 2020
    Assignee: THE BOEING COMPANY
    Inventors: Morteza Safai, Gary E. Georgeson
  • Patent number: 10553623
    Abstract: A method for non-contact measurement of stress in a thin-film deposited on a substrate is disclosed. The method may include measuring first topography data of a substrate having a thin-film deposited thereupon. The method may also include comparing the first topography data with second topography data of the substrate that is measured prior to thin-film deposition. The method may further include obtaining a vertical displacement of the substrate based on the comparison between the first topography data and the second topography data. The method may also include detecting a stress value in the thin-film deposited on the substrate based on a fourth-order polynomial equation and the vertical displacement.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: February 4, 2020
    Assignee: APPLEJACK 199 L.P.
    Inventors: Wojciech Jan Walecki, Oanh Nguyen
  • Patent number: 9964471
    Abstract: A wheel-tracking test device includes a housing, one or more test chambers in the housing, one or more load arm assemblies, and a drive mechanism. Each test chamber is configured to receive and hold one or more asphalt test samples. Each load arm assembly includes a weighted loading arm and a wheel rotatably connected to the loading arm. The drive mechanism is configured to move the load arm assembly from a load position in which the wheel is on a test sample held in the test chamber and a rest position by retracting the loading arm such that the wheel is lifted off the test sample.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: May 8, 2018
    Assignees: INSTROTEK, INC., MATEST S.P.A. UNIPERSONALE
    Inventors: Ali Regimand, Danilo Guerini, Lawrence H. James, Paola Maestroni, Andrew Thomas LaCroix
  • Patent number: 9944503
    Abstract: A system for transporting and testing a crane includes a crane, a transporting frame and a foundation. A first connecting mechanism is provided for establishing a releasable connection between the crane and the transporting frame. A second connecting mechanism is provided for establishing a releasable connection between the transporting frame and the foundation. In a starting state, the crane, the transporting frame and the foundation are separate from one another. In a transporting state, the crane is connected to the transporting frame. In a testing state, the crane is connected to the transporting frame and the transporting frame is connected to the foundation. The invention also relates to a corresponding method. The invention makes it possible for the crane to be assembled, and tested, at a site remote from an offshore wind turbine.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: April 17, 2018
    Assignee: SENVION SE
    Inventors: Martin Winter, Patrick Friebe, Daniel Reinhardt, Jens Nielsen, Ronny Oberm├╝ller
  • Patent number: 9810612
    Abstract: A low-cycle fatigue test rig reproduces bearing of turbine engine parts. The test rig includes a support member that is fixed to a frame and defines at least one bearing surface. A test piece is connected to a traction element for loading the test piece so that the test piece bears against the at least one bearing surface of the support member. The at least one bearing surface is supported by a support element that is mounted to rotate about a first axis on the support member. The test piece is connected to the traction element for articulation around a second axis that is perpendicular to the first axis. The test rig is configured to enable adjusting and locking the support element and the test piece in positions around the above-mentioned axes.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: November 7, 2017
    Assignees: SNECMA, TURBOMECA
    Inventors: Jean Vincent Manuel Meriaux, Guillaume Puech, Juan-Antonio Ruiz-Sabariego, Nathalie Serres, Laurent Houze
  • Patent number: 9664648
    Abstract: The present invention relates to a method for determining mechanical parameters of a cementitious system, on the basis of time, and on the basis of the fineness of the cementitious system, pressure and/or temperature, representative of the in situ conditions found in wellbores. The initial composition of the cementitious system, the fineness ? thereof and the speed of the compression waves on the basis of time Vp(t) are the only input data of the method.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: May 30, 2017
    Assignee: Total SA
    Inventors: Axel-Pierre Bois, Andre Garnier, Jean-Benoit Laudet, Manh-Huyen Vu, Siavash Ghabezloo, Jean Sulem
  • Patent number: 9588041
    Abstract: A system for determining a material property at an interface between a first layer and a second layer includes a transmitter outputting electromagnetic radiation to the sample, a receiver receiving electromagnetic radiation that was reflected by or transmitted though the sample, and a data acquisition device. The data acquisition device digitizes the electromagnetic radiation to yield waveform data. The waveform data represents the radiation reflected by or transmitted though the sample. The material property to be determined is generally the adhesive strength between the first and second layers.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: March 7, 2017
    Assignee: PICOMETRIX, LLC
    Inventors: Jeffrey S. White, Gregory D. Fichter, Irl Duling, David Zimdars
  • Patent number: 9261444
    Abstract: The present disclosure relates to a system for testing the strength of a bonded joint between at least two components, wherein the system includes at least one element force energizer that creates an actual mechanical stress in the bonded joint when actuated, wherein the element force energizer is coupled with the at least two components. The system further includes an energy interface that is connectable to a power source, the energy interface being in electrical communication with the at least one element force energizer, and a sensor that detects the actual mechanical stress or strain in the bonded joint. The system may also include a recording device that records and/or transmits the detected mechanical stress or strain in the bonded joint. In one example, the element force energizers include piezoelectric materials.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: February 16, 2016
    Assignee: The Boeing Company
    Inventors: Richard M. Sutherland, Eugene A. Dan-Jumbo
  • Patent number: 9151154
    Abstract: An apparatus for preparing and testing a sample of a subterranean formation, the apparatus comprising a pressure cell defining an interior volume, the pressure cell comprising a first end member comprising a channel formed therein, a second end member, a wall member positioned between the first end member and the second end member, and a sample cell positioned within the interior volume of the pressure cell, wherein the channel of the first end member fluidly connects with a first point external of the pressure cell, with a second point external of the pressure cell, and with the sample cell.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: October 6, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventor: David Leon Meadows
  • Patent number: 9146183
    Abstract: The present invention relates to test weights for testing the load capacity of a crane. More specifically, the present invention provides a novel system and approach simple and efficient crane load testing using solid weights. Previous methods of testing crane load capacity often require significant time to configure and reconfigure the apparatus. The system of the present invention increases efficiency by significantly reducing this configuration time. The system comprises a plurality of stackable test weights, and a lifting fixture specifically designed for the system. A cantilever structure located on two opposing sides of the test weight enables the lifting fixture to first be quickly secured underneath of said structure, and then lift that particular unit as well as any units surmounting that unit. A novel block lock system integrated into each weight unit enables self-alignment and securing of each weight as it is placed onto the weight stack.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: September 29, 2015
    Inventor: Jeffrey O'Rourke
  • Patent number: 9128011
    Abstract: A method and device for objectively determining extraction loads for, or verifying capability to withstand loads for fasteners, sealants, or overlying materials attached to an underlying material. The method provides for a repeatable and objective test for comparing extraction load and load bearing capability of fasteners, sealants, or overlying materials attached to an underlying material to standards for the same. The portable device provides for testing various types of fasteners, sealants, or overlying materials attached to an underlying material in a repeatable and easily usable manner. The device comprises a means of generating, applying, and measuring load forces, and providing the data therefrom.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: September 8, 2015
    Assignee: ASSOCIATE PROFESSIONAL ENGINEERING & CONSTRUCTION LLC
    Inventor: Matthew Bernard Phelps
  • Patent number: 8984955
    Abstract: In a method of arresting fatigue crack growth in a metal member, a hole is formed beside a tip portion of a fatigue crack with respect to a crack extension direction, in a metal member body, in which the fatigue crack occurs due to an action of applied cyclic tensile stress. Then, a press-fit object being higher in stiffness than the metal member body and larger in external size than the hole is press-fitted into the hole. Compressive stress is made to act on the tip portion of the fatigue crack from directions lateral to the crack extension direction.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: March 24, 2015
    Assignee: IHI Corporation
    Inventor: Masashi Mouri
  • Patent number: 8978479
    Abstract: Provided is a viscoelasticity measuring apparatus in which an undesirable sample shape change such as a buckle caused as a result of thermal expansion of a sample is eliminated so as to prevent a deformation in a displacement detector direction due to the thermal expansion and a bending of the sample between a sample grasping member and a chuck, to thereby improve accuracy of measurement. In the viscoelasticity measuring apparatus, a thin part is provided in a part of an elastic arm for holding the sample so as to be easily deformed by a thermal expansion force of the sample. Thus, an undesirable shape change such as the buckle generated when the sample is expanded thermally is effectively eliminated, and necessary stiffness is maintained with respect to a load of the sample and hence accuracy of measurement is improved.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: March 17, 2015
    Assignee: Hitachi High-Tech Science Corporation
    Inventors: Nobuaki Okubo, Kengo Kobayashi, Toshihiko Nakamura, Hirohito Fujiwara
  • Patent number: 8966993
    Abstract: Method and apparatus for a piezoelectric apparatus are provided. In some embodiments, a method for fabricating a piezoelectric device may include etching a series of vertical trenches in a top substrate portion, depositing a first continuous conductive layer over the trenches and substrate, depositing a continuous piezoelectric layer over the first continuous conductive layer such that the piezoelectric material has trenches and sidewalls, depositing a second continuous conductive layer over the continuous piezoelectric layer, etching through the vertical trenches of the first continuous conductive layer, continuous piezoelectric layer, second continuous conductive layer, and top substrate portion into a bottom substrate portion, etching a series of horizontal trenches in the bottom substrate portion such that the horizontal trenches and vertical trenches occupy a continuous free space and allow movement of a piezoelectric MEMS device created by the above method in three dimensions.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: March 3, 2015
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Jeffrey S. Pulskamp, Ronald G. Polcawich
  • Publication number: 20150059026
    Abstract: A method of measuring surface curvature comprises forming an intensity distribution defined by Fresnel diffraction, wherein said intensity distribution is formed by electromagnetic radiation reflected from a surface, obtaining data for the intensity distribution and determining information relating to the curvature of the surface using the obtained data.
    Type: Application
    Filed: March 28, 2013
    Publication date: February 26, 2015
    Applicant: UCL Business PLC
    Inventors: Rodolfo Hermans, Gabriel Aeppli
  • Publication number: 20150053017
    Abstract: Methods are disclosed relating to the assessment of fatigue damage in objects that include for example, subjecting a fatigued object to a cyclic mechanical stress, measuring a rate of temperature rise in the fatigued object, and assessing a degree of fatigue of the fatigued object based on the rate of temperature rise in the fatigued object. Methods of measuring internal structural characteristics and methods of correlating fatigue damage to results from excitation tests are also taught.
    Type: Application
    Filed: August 23, 2013
    Publication date: February 26, 2015
    Inventors: Michael M. Khonsari, Mehdi Amiri
  • Publication number: 20150050893
    Abstract: Damage to conductive material that serves as bridging connections between conductive structures within an electronic device may result in deficiencies in radio-frequency (RF) and other wireless communications. A test system for testing device structures under test is provided. Device structures under test may include substrates and a conductive material between the substrates. The test system may include a test fixture for increasing tensile or compressive stress on the device structures under test to evaluate the resilience of the conductive material. The test system may also include a test unit for transmitting RF test signals and receiving test data from the device structures under test. The received test data may include scattered parameter measurements from the device structures under test that may be used to determine if the device structures under test meet desired RF performance criteria.
    Type: Application
    Filed: August 15, 2013
    Publication date: February 19, 2015
    Applicant: Apple Inc.
    Inventors: Joshua G. Nickel, Chun-Lung Chen, Tseng-Mau Yang, Nicholas G. Merz, Robert W. Schlub, Boon W. Shiu, Erica J. Tong
  • Patent number: 8955386
    Abstract: A system measures the load on a bridge when being used by a vehicle. The system has at least one measuring module with a plurality of measuring channel units which have associated separate sensors, preferably DMS sensors, which are intended to be fitted to the bridge. The sensors transmit measurement signals, preferably by wire, to the measuring channel units which are associated with each of the sensors and derive digital measurement data from the measurement signals. The measuring module also has an associated transmission interface in order to transmit the digital measurement data to a remote evaluation unit.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: February 17, 2015
    Inventor: Markus Petschacher
  • Publication number: 20150040679
    Abstract: A wheel testing system and method are provided that simulates realistically conditions likely to be encountered during operation of vehicle wheels, especially powered drive wheels and wheel-connected structures. The system may include an integral support frame designed to adjustably mount wheels or wheel-connected structures to be tested, a load motor drivingly connected to an inertial load, and an adjustable mounting sled configured to adjustably mount a test wheel or a wheel-connected structure with an hydraulic system actuatable to adjust the location of the test wheel relative to the inertial load to vary or fix the load on the test wheel desired. Speed of the test wheel can be varied or fixed by controlling the speed of the load motor. System measurement and data collection electronics measure a range of selected wheel parameters and gather data for transmission to a processor or non-transitory storage medium for processing and evaluation.
    Type: Application
    Filed: March 28, 2013
    Publication date: February 12, 2015
    Inventors: Jonathan Sidney Edelson, Scott Perkins, Robert M. Sweet, Isaiah W. Cox
  • Patent number: 8950268
    Abstract: A material testing machine measuring strain of a tube-like test piece, comprising: a plurality of radial direction displacement detection units; an axis direction displacement detection unit; and a calculation unit that calculates the strain, wherein: each of first and second displacement meters of at least one of the radial direction displacement detection units comprises: a needle; a fixed frame; a movable frame; and a displacement sensor having a body part and a contact protruding from the body part, and wherein a tip of the contact contacts a stopper plate; the needle is oriented in the radial direction of the test piece; the needle protrudes from an end of the movable frame; displacement in the radial direction of the test piece is detected by detecting a moving amount of the needle; and the calculation unit calculates a curvature radius in the tube axis direction of the test piece.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: February 10, 2015
    Assignee: Kokusai Kiesokuki Kabushiki Kaisha
    Inventor: Tomotaka Ota
  • Patent number: 8950267
    Abstract: Methods and apparatus for detecting cross-linking in a polymer, wherein, in some exemplary implementations, the polymer may constitute an encapsulation layer for a photovoltaic module. In one example, a polymer sample is physically deformed, and sample information relating to a relaxation or a recovery of the polymer sample in response to the deformation is obtained. The sample information is then compared to reference information relating to cross-linking of the polymeric material so as to determine a degree of cross-linking in the tested polymer sample. In one aspect, such a determination of polymer cross-linking is achieved without adversely affecting a relevant functionality of the polymer/encapsulation layer (e.g., without destruction to the polymer/encapsulation layer).
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: February 10, 2015
    Assignee: Fraunhofer USA, Inc.
    Inventors: Dan Doble, Rafal Mickiewicz, John Lloyd, Marco Jaeger, William F. Hartman
  • Patent number: 8931349
    Abstract: The invention relates to a test apparatus and a test method for the testing of samples by mechanical action upon the sample. The test apparatus comprises a sample region and a cylinder, which is movable in relation to the sample region, and at least two linear drives, each with a first drive part, which is fixed in place with respect to an end of the sample region, which faces it, and with a second drive part, which is movable in relation to the first drive part and is driven and which is fixed in place with respect to the cylinder. Advantageously, the movement axes of the linear drives run parallel to the longitudinal axis of the cylinder. In a preferred embodiment, a test set-up of the test apparatus has a rigid load frame.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: January 13, 2015
    Assignee: Thelkin AG
    Inventor: Thorsten Schwenke
  • Publication number: 20150007667
    Abstract: The invention relates to a test piece for determining a specific material property of a fiber-reinforced plastic composite under applied mechanical loading. According to the invention, it is provided that an inner core is incorporated in a composite with the fiber-reinforced plastic, the inner core being widened in a transverse axis in relation to the mechanical load in such a way that the composite with the inner core has a greater buckling stability than a comparative body, such as the composite without the inner core, and that the inner core is formed in such a way that an influence on the specific material property to be determined of the fiber-reinforced plastic composite lies in a range of acceptance.
    Type: Application
    Filed: July 1, 2014
    Publication date: January 8, 2015
    Inventor: Ingo Hesse
  • Patent number: 8925389
    Abstract: There are provided a method for measuring strength of a chemically strengthened glass, that reflects the state of actual drop fracture more appropriately, and can reproduce slow cracking in the chemically strengthened glass, a method for reproducing cracking of a chemically strengthened glass, and a method for producing a chemically strengthened glass. Load is applied to an indenter having a tip formed into a sharp shape having a minimum angle ?min of cross-section of less than 120┬░, the indenter is pushed into a chemically strengthened glass under a static load condition such that the tip is vertical to a surface of the chemically strengthened glass, and the load when the chemically strengthened glass cracks is measured.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: January 6, 2015
    Assignee: Asahi Glass Company, Limited
    Inventors: Shusaku Akiba, Takahiro Sakagami, Kazutaka Ono
  • Publication number: 20150000419
    Abstract: A sensor device includes a sensor element which is formed by laminating a piezoelectric substance and an electrode, a first case and a second case which house the sensor element therein, and a pressing portion which presses the sensor element in the lamination direction of the piezoelectric substance and the electrode via the first and second cases.
    Type: Application
    Filed: September 19, 2014
    Publication date: January 1, 2015
    Inventors: Kazuhiro TSUCHIYA, Toshiyuki KAMIYA
  • Publication number: 20140366638
    Abstract: The present invention generally relates to a method for determining the dynamic viscoelastic properties of cells, more particularly to a method for rapidly determining the dynamic viscoelastic properties of healthy and unhealthy cells by determining the phase shift be the application of a modulating force to the cells and the cells' response to the modulating force.
    Type: Application
    Filed: June 17, 2014
    Publication date: December 18, 2014
    Inventors: Tobias Sawetzki, David W.M. Marr, Charles Eggleton, Sanjay Desai
  • Patent number: 8888363
    Abstract: A temperature measuring device, which is used in a continuous casting machine, measures the surface temperature of a part or all of a cast slab in a width direction of the cast slab, which is drawn from a mold and conveyed by rollers, in a secondary cooling zone of the continuous casting machine. The temperature measuring device includes a support member that is installed on the side of roller support parts by which the rollers are rotatably supported; an arm member of which a proximal portion is rotatably mounted on the support member; and a radiation thermometer which is provided at a distal end portion of the arm member and of which a light receiving opening is disposed at a position corresponding to a height in the range of 1.0 to 4.5 m from the surface of the cast slab.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: November 18, 2014
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Kazunori Ueda, Takeshi Okawa, Shinichi Fukunaga
  • Patent number: 8875585
    Abstract: Apparatuses, systems, or methods for testing a mattress system are described herein. Apparatuses and systems can include a robotic arm assembly and a mannequin to simulate natural human motion or movements that occur during use of a mattress system. The apparatuses and systems described herein can test a mattress system for firmness and/or durability. Also described herein are methods for testing a mattress system with a robotic arm assembly and a mannequin.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: November 4, 2014
    Assignee: Sealy Technology, LLC
    Inventor: Brad McCollum
  • Publication number: 20140318264
    Abstract: A vehicle test apparatus includes: a test article installation vehicle body to which four axles corresponding to four wheels that are a left front wheel, a right front wheel, a left rear wheel and a right rear wheel are attached, and on which a test article is installed; a first motion base that supports the test article installation vehicle body, and that allows the test article installation vehicle body to make motions of six degrees of freedom; and four second motion bases each of which supports a corresponding one of the axles, and each of which allows a corresponding one of the axles to make motions of six degrees of freedom.
    Type: Application
    Filed: April 18, 2014
    Publication date: October 30, 2014
    Applicant: JTEKT CORPORATION
    Inventors: Masaharu TAGAMI, Tomoyasu KADA, Ryouhei HAYAMA, Takeshi WATANABE, Aris MAROONIAN
  • Publication number: 20140318265
    Abstract: A testing apparatus for a strut having a cylinder portion and a rod portion is provided. The testing apparatus includes a frame assembly, a loading mechanism, and a rotating assembly. The frame assembly includes a retainer portion configured to hold the cylinder portion of the strut about a first axis. The loading mechanism includes two actuators angularly disposed between the frame assembly and the rod portion of the strut. The actuators can cooperatively load the strut along the first axis. The rotating assembly is coupled between the frame assembly and the rod portion of the strut. The rotating assembly can rotate the rod portion relative to the cylinder portion.
    Type: Application
    Filed: April 25, 2013
    Publication date: October 30, 2014
    Applicant: Caterpillar Inc.
    Inventors: Eric P. Gengler, Christopher Paul Buckley, Thomas Kos
  • Patent number: 8863584
    Abstract: Provided is a material testing system that can prevent the influence of noise to obtain an adequate test result by reducing a variation in test force in a plastic region. The material testing system is provided with: a displacement meter 15 that measures a displacement in distance between gage marks on a test piece 10; measuring means adapted to measure a displacement in rotational angle of a servo motor 31 that moves a crosshead 13; a computing part 48 that successively computes a change ratio R that is a ratio between the displacement in distance and the displacement in rotational angle; and a feedback control part 49 that, on the basis of the change ration R, performs feedback control of the servo motor 31, wherein when the change ratio R exceeds a setting value, a value of a parameter K used for the feedback control is changed to a value that makes the influence of the feedback control small.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: October 21, 2014
    Assignee: Shimadzu Corporation
    Inventor: Toshiyuki Kawano
  • Patent number: 8857265
    Abstract: An apparatus for orienting a test article relative to a loading axis includes a first member and a second member. The first member may have a concave surface. The second member may have a convex surface configured to engage the concave surface in a manner such that the second member is movable relative to the first member. The test article may be coupled to one of the first and second members such that relative movement thereof facilitates general alignment of the test article with the axial loading axis. The leveling apparatus may further include a plurality of positioning devices configured to facilitate adjustment of an orientation of the second number relative to the first member such that the alignment of the test article may be adjusted.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: October 14, 2014
    Assignee: The Boeing Company
    Inventor: Jose Rafael Silva
  • Publication number: 20140298918
    Abstract: An apparatus, method, and material wherein the material's viscoelastic and/or fatigue life may be altered by application of a secondary tuning electromagnetic field or a selected temperature, and the material's viscoelastic and/or fatigue properties are measured by a mechanical response of the material caused by applying a primary driving electromagnetic field.
    Type: Application
    Filed: April 7, 2014
    Publication date: October 9, 2014
    Inventors: Dennis M. Kochmann, Charles S. Wojnar, Jean-Briac le Graverend
  • Patent number: 8839678
    Abstract: A test apparatus configured to test connectors is provided. The test apparatus may include a fixture that holds a first connector and an actuator that holds a mating second connector. The actuator may axially displace the second connector in and out of engagement with the first connector. A compliance mechanism, which may be coupled to the fixture or the actuator, may provide one of the connectors with compliance in order to facilitate alignment of the connectors during engagement and disengagement thereof. The compliance mechanism may allow movement of one of the connectors perpendicularly to the actuation axis and/or angular movement about the actuation axis while preventing axial movement within the compliance mechanism. Accordingly, forces associated with engagement and disengagement of the connectors measured by a load cell may more closely resemble actual forces experienced by a user during use of the connectors.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: September 23, 2014
    Inventors: Patrick Kessler, Michael A. Damianakis
  • Publication number: 20140260654
    Abstract: A method is provided for carrying out finite element analysis. The method includes the step of meshing a domain under a field with a plurality of finite elements. Each overlapping finite element is detected and a stiffness contribution due to the plurality of finite elements is calculated. A stiffness contribution due to the overlapping finite elements is also calculated and combined with the stiffness contribution due to the plurality of finite element.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: Wisconsin Alumni Research Foundation
    Inventors: Krishnan Suresh, Joshua Danczyk
  • Publication number: 20140260655
    Abstract: A ski-binding testing apparatus that includes an axial-force indicator that indicates when a force applied to the testing apparatus has an axial component that is outside of an acceptable range. In one example, the apparatus includes a simulated foot, a force-transmitting structure coupled to the simulated foot, a handgrip coupled to the force-transmitting structure, and an axial-force indicator that indicates when a forced applied by a user to the handgrip exceeds a predetermined threshold. In one embodiment, the force-transmitting structure can include a torque wrench that includes a torque beam, the handgrip, and axial-force indicator. The torque wrench can be provided with a conventional work-engagement end, such as a socket-type receiver to allow the axial-force-indicating functionality to be used outside the context of a ski-binding testing apparatus.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Vermont Ski Safety Equipment, Inc.
    Inventor: Carl F. Ettlinger
  • Patent number: 8833155
    Abstract: A measurement apparatus includes a workbench, a loading mechanism fixed to the workbench, a deformation measuring mechanism, and a stress meter. The deformation measuring mechanism includes a slide beam, and a displacement meter. The loading mechanism includes a guiding shaft extending through a to-be-tested coil spring. A measuring pole of the stress meter, the sliding beam, and the guiding shaft are coaxial. Opposite ends of the coil spring are respectively abutted the slide beam and the loading mechanism. A measuring pole of the displacement meter is connected to the sliding beam. When the stress meter slides towards the slide beam, the displacement of the detecting pole of the displacement member is equal to a change of a length of the coil spring, and recorded by the displacement meter, and a value of a force applied to the coil spring is recorded by the stress meter.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: September 16, 2014
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventor: Bing-Jun Zhang
  • Publication number: 20140230560
    Abstract: Method and apparatus for a piezoelectric apparatus are provided. In some embodiments, a method for fabricating a piezoelectric device may include etching a series of vertical trenches in a top substrate portion, depositing a first continuous conductive layer over the trenches and substrate, depositing a continuous piezoelectric layer over the first continuous conductive layer such that the piezoelectric material has trenches and sidewalls, depositing a second continuous conductive layer over the continuous piezoelectric layer, etching through the vertical trenches of the first continuous conductive layer, continuous piezoelectric layer, second continuous conductive layer, and top substrate portion into a bottom substrate portion, etching a series of horizontal trenches in the bottom substrate portion such that the horizontal trenches and vertical trenches occupy a continuous free space and allow movement of a piezoelectric MEMS device created by the above method in three dimensions.
    Type: Application
    Filed: December 19, 2012
    Publication date: August 21, 2014
    Applicant: U.S. Army Research Laboratory
    Inventor: U.S. Army Research Laboratory
  • Patent number: 8806951
    Abstract: Rheometer, also usable for stress-strain-investigations, with at least one bearing (28; 35) having an adjustable stiffness in a direction normal to the bearing surfaces (19, 20, 21, 22, 23, 24, 26, 27). The instrument further includes a system (31, 32, 33, 34; 36, 37) for controlling a parameter for adjusting the stiffness of the at least one bearing (28; 35); a system (10) for determining a value of a quantity associated with a second force exerted between the rotor (8, 5, 6,7) and the stator (2) and opposing the force associated with the quantity to be determined; and a data processing system for correcting the determined value of the quantity associated with the second force by a bias value, obtained using a mapping having as a parameter a variable representative of the parameter for adjusting the stiffness.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: August 19, 2014
    Assignee: Malvern Instruments, Ltd.
    Inventors: John Wilkinson, Tim Jackson
  • Publication number: 20140208861
    Abstract: A method of modifying a workpiece includes providing a workpiece, determining a load stress profile associated with a load condition, the load stress profile comprising a load stress greater than a material stress limit of the workpiece, determining a residual stress profile, the residual stress profile comprising a residual stress less than the material stress limit of the workpiece, and providing the workpiece with the residual stress profile, wherein a sum of the load stress and the residual stress is less than the material stress limit of the workpiece.
    Type: Application
    Filed: January 25, 2013
    Publication date: July 31, 2014
    Applicant: BELL HELICOPTER TEXTRON INC.
    Inventor: Bell Helicopter Textron Inc.
  • Publication number: 20140202256
    Abstract: In one embodiment, an apparatus, includes: a mandrel; an expansion cylinder, comprising: opposite first and second ends; an inner circumferential surface extending between the ends and characterized by an inner diameter, the inner circumferential surface defining a hollow cavity; an outer circumferential surface extending between the ends and characterized by an outer diameter that is greater than the inner diameter; and a plurality of slots extending from the inner circumferential surface to the outer circumferential surface and latitudinally oriented between the ends; and one or more base plates configured to engage one of the ends of the expansion cylinder. In another embodiment, a method includes: arranging an expansion cylinder inside a test cylinder; arranging a mandrel inside the expansion cylinder; applying a force to the mandrel for exerting a radial force on the expansion cylinder; and detecting one or more indicia of structural failure of the test cylinder.
    Type: Application
    Filed: January 23, 2013
    Publication date: July 24, 2014
    Applicant: Lawrence Livermore National Security, LLC
    Inventors: Steven John DeTeresa, Scott Eric Groves, Roberto Joseph Sanchez, William Andrew Andrade
  • Patent number: 8783091
    Abstract: Devices and methods for testing cement include: a pressure vessel with a sample container inside an interior working volume of the pressure vessel, the pressure vessel configured to supply a first pressurized fluid to control a pore pressure of a cement sample and to supply a second pressurized fluid to lateral exterior surfaces of the sample container to provide a confining pressure that can be different than the pore pressure.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: July 22, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: David L. Meadows, Robert P. Darbe, Keith D. Pewitt
  • Patent number: 8770036
    Abstract: An automated testing system includes systems and methods to facilitate inline production testing of samples at a micro (multiple microns) or less scale with a mechanical testing instrument. In an example, the system includes a probe changing assembly for coupling and decoupling a probe of the instrument. The probe changing assembly includes a probe change unit configured to grasp one of a plurality of probes in a probe magazine and couple one of the probes with an instrument probe receptacle. An actuator is coupled with the probe change unit, and the actuator is configured to move and align the probe change unit with the probe magazine and the instrument probe receptacle. In another example, the automated testing system includes a multiple degree of freedom stage for aligning a sample testing location with the instrument. The stage includes a sample stage and a stage actuator assembly including translational and rotational actuators.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: July 8, 2014
    Assignee: Hysitron, Inc.
    Inventors: David James Vodnick, Arpit Dwivedi, Lucas Paul Keranen, Michael David Okerlund, Roger William Schmitz, Oden Lee Warren, Christopher David Young
  • Patent number: 8752438
    Abstract: The present invention is directed to a sensor-enabled geosynthetic material for use in geosynthetic structures and geosyntapes, a method of making the sensor-enabled geosynthetic material and the geosyntapes, and a method of measuring geometric strains of a geosynthetic product made from the sensor-enabled geosynthetic material. The sensor-enabled geosynthetic material includes a polymeric material and an electrically conductive filler. The polymeric material and an electrically conductive filler are combined to provide a sensor-enabled geosynthetic material. The sensor-enabled geosynthetic material having a predetermined concentration of the electrically conductive filler so as to provide the sensor-enabled geosynthetic material with an electrical conductivity and a strain sensitivity within the percolation region or slightly above it.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: June 17, 2014
    Assignee: The Board of Regents of the University of Oklahoma
    Inventors: Kianoosh Hatami, Brian Grady
  • Publication number: 20140154353
    Abstract: A method of selecting a commercially viable chewing gum including testing a chewing gum using nonlinear rheology, compiling rheological data from the nonlinear rheology, and then comparing the rheological data obtained to rheological data ranges of commercially acceptable chewing gum. The nonlinear rheology can include large amplitude oscillatory shear test, start-up of steady uniaxial extension test, and uniaxial compression test (lubricated or unlubricated) and relaxation.
    Type: Application
    Filed: August 5, 2011
    Publication date: June 5, 2014
    Applicant: WM. WRIGLEY JR. COMPANY
    Inventors: Luca Martinetti, Christopher W. Macosko, Randy H. Ewoldt, Lesile D. Morgret
  • Publication number: 20140130603
    Abstract: Methods, devices, and systems relating to a sensing device are disclosed. A device may comprise a structure including a first surface and a second, opposite surface, wherein the structure comprises one or more segments. Further, the device may include a plurality of sensors disposed on the structure, wherein each segment of the one or more segments comprises a first sensor of the plurality of sensors coupled to the first surface and an associated second sensor of the plurality of sensors coupled to the second surface. Moreover, each sensor of the plurality of sensors may be configured to measure a strain exhibited on an adjacent surface of the structure at an associated segment of the one or more segments.
    Type: Application
    Filed: December 3, 2013
    Publication date: May 15, 2014
    Applicant: Alliant Techsystems Inc.
    Inventors: Edward C. Mathias, John L. Shipley
  • Patent number: 8714025
    Abstract: A bond strength testing apparatus comprising a main body, a test tool mount for holding a test tool, and an axial drive mechanism including a screw and nut assembly. The drive mechanism couples the test tool mount to the main body and allows for relative movement between the test tool mount and the main body in an axial direction. A backlash control element is coupled to the main body and the test tool mount, and, in operation, biases the test tool mount relative to the main body in an axial direction. The backlash control element is switchable between a first state in which the test tool mount is biased in a first axial direction by the backlash control element, and a second state in which either the test tool mount is biased in a second axial direction by backlash control element, or the backlash control element applies no biasing force to test tool mount. The apparatus can be automated to apply the appropriate backlash control for a particular, selected test type.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: May 6, 2014
    Assignee: Nordson Corporation
    Inventors: David Lilley, Martin Bugg, Robert John Sykes
  • Publication number: 20140102211
    Abstract: A testing machine includes a pair of vertical columns, a crosshead selectively positionable on the vertical columns, and a head assembly supported by and movable with the crosshead. The head assembly has an electric actuator, a support that can be selectively moved from a first position when the test machine is operated to a lowered position. The support supporting components are related to powering or controlling the electric actuator, said components are exposed for servicing in the lowered position.
    Type: Application
    Filed: March 15, 2013
    Publication date: April 17, 2014
    Applicant: MTS System Corporation
    Inventor: MTS System Corporation
  • Patent number: 8689644
    Abstract: A detection device for shocks on a part comprises a base intended to be fixed by a lower face onto a surface of the part where the occurrence of a shock is to be detected and comprises one or more detectors fixed at the base and protruding with respect to the base, a detector being deformed in a persistent way with a magnitude equal to or greater than a threshold magnitude when it is subjected to a shock with an energy equal to or greater than a threshold energy. Under the effect of such a shock with energy or greater, a detector is simply deformed or broken such that the visual inspection allows the occurrence of the shock to be detected.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: April 8, 2014
    Assignee: Airbus Operations S.A.S.
    Inventor: Jerome Dubost
  • Publication number: 20140090479
    Abstract: A method for load relieving a test object, wherein a load is applied by a multiplicity of hydraulic devices positioned side by side each introducing a partial load into the test object such that the test object has a minimum deflection in an area close to its fixation and a maximum deflection in an area far away from the fixation, wherein the load is reduced sequentially from the maximum deflection to the minimum deflection. A test rig is provided that enables an autonomous and non-synchronical load relief of a test object based on pressure difference. A test rig is provided that enables an autonomous and non-synchronical load relief of a test object based on a delay time and a control system for such test rigs.
    Type: Application
    Filed: September 25, 2013
    Publication date: April 3, 2014
    Inventors: Andrej Klaas, Rolf Hinrichs, Andreas Kotzke, Andreas Hofferek