Tensile Patents (Class 73/826)
  • Patent number: 9958347
    Abstract: A system for assessing the distribution of shear forces at fixation points on a textile-based implant includes a tissue model, a load simulation device, and an analysis system. The tissue model includes an upper surface defining an opening therethrough and a fixation support configured to secure a textile-based implant against the upper surface at a plurality of fixation points defined along a plane of the upper surface. The load simulation device is configured to apply a load to a textile-based implant that is secured to the tissue model. A marker is disposed on the fixation support at one or more of the plurality of fixation points. The analysis system is configured to calculate a shear force vector at each of the fixation points where a marker is disposed in response to the load applied by the load simulation device.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: May 1, 2018
    Assignee: Sofradim Production
    Inventors: Tristan Rene Guy Belzacq, Clément Ordrenneau, Frédéric Laurent Pascal Turquier
  • Patent number: 9874503
    Abstract: Systems and methods of use pertaining to a digital testing and communication system for testing the pull-out strength of a fastener member secured within a base material. The system includes a mechanical screw/actuation arrangement configured to act through a load cell to apply an increasing tensile force to the fastener. The system also includes a digital load gauge in communication with the load cell and configured to indicate the tensile force measured by the load cell. The testing and communication system may incorporate a data system, a reporting system, and a transmission system configured compile the force information into a testing report along with location information, date and time information, and/or a pass-fail indication that is transmitted to/provided upon one or more client devices located on-site or at a remote location.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: January 23, 2018
    Assignee: Hydrajaws, Limited
    Inventor: Adrian Morgan
  • Patent number: 9746415
    Abstract: A detector mask transmits selectively a plurality of probe particles to a particle detector, the detector mask includes: a plate including a plate wall disposed in the plate and enclosing a transmission orifice arranged in a transmission profile to: transmit probe particles having a trajectory coincident with the transmission orifice, block probe particles having a trajectory external to the transmission orifice, and form a probe particle beam comprising the probe particles transmitted by the transmission orifice to the particle detector, wherein the transmission profile includes a sector, a semi-circle, an annular sector, or a combination including at least one of the foregoing first transmission profiles.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: August 29, 2017
    Assignee: THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: Jason D. Holm, Robert R. Keller, Katherine P. Rice
  • Patent number: 9557255
    Abstract: A system includes: a tension member having a first end and a second end, where the first end of the tension member is connected to a first loading member and the second end of the tension member is connected to a second loading member; a first actuator configured to translate the first loading member, such that a tensile load is applied to the tension member along a first direction; a second actuator configured to translate the second loading member in two or more second directions that are substantially transverse to the first direction; and a control system that is configured to control the second actuator, such that the second loading member oscillates between the two or more second directions, where the oscillation of the second loading member causes the tension member to vibrate at a frequency.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: January 31, 2017
    Assignee: X Development LLC
    Inventors: Elias Wolfgang Patten, Damon Vander Lind
  • Patent number: 9359212
    Abstract: A copper foil for producing graphene including Cu having a purity of 99.95% by mass or more.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: June 7, 2016
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Yoshihiro Chiba, Toshiyuki Ono
  • Patent number: 9193010
    Abstract: Devices and methods are provided for testing weld strengths of a test coupon joint. A test coupon is positionally fixed to a base of the testing device. A punch assembly having a head portion is provided so as to exert an axial force against an upright part of the test coupon to thereby determine weld strength between the planar and upright parts of the test coupon (e.g., a maximum force at which weld failure occurs).
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: November 24, 2015
    Assignee: EMBRAER S.A.
    Inventors: Marcos Hideki Miyazaki, Marcos Antonio Batista Goncalves, Andreza Sommerauer Franchim Viliotti, Fernando Ferreira Fernandez
  • Patent number: 9067325
    Abstract: A grasp assist system includes a glove and a flexible sleeve. The glove includes a digit such as a finger or thumb, a force sensor configured to measure a grasping force applied to an object by an operator wearing the glove, and adjustable phalange rings positioned with respect to the digit. A saddle is positioned with respect to the finger. A flexible tendon is looped at one end around the saddle. A conduit contains the tendon. A conduit anchor secured within a palm of the glove receives the conduit. The sleeve has pockets containing an actuator assembly connected to another end of the tendon and a controller. The controller is in communication with the force sensor, and calculates a tensile force in response to the measured grasping force. The controller commands the tensile force from the actuator assembly to tension the tendon and thereby move the finger.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: June 30, 2015
    Assignees: GM Global Technology Operations LLC, The United States of America As Represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Chris A. Ihrke, Donald R. Davis, Douglas Martin Linn, Bryan Bergelin, Lyndon B. J. Bridgwater, Heather Bibby, Judy Schroeder, Craig Erkkila
  • Patent number: 9032812
    Abstract: A method and system for determining creep capability of turbine components is provided. A plurality of turbine components are manufactured from a material having known creep characteristics. Each of the plurality of turbine components is subjected to at least one of tensile stress, centrifugal stress and thermal stress, until a measurable amount of creep is acquired. The turbine components so tested are compared against known creep characteristics for the material used in the components. Components exhibiting an amount of creep greater than a predefined amount of creep will be separated from the plurality of turbine components and not placed into service.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: May 19, 2015
    Assignee: General Electric Company
    Inventor: John David Ward
  • Patent number: 9010195
    Abstract: A horizontal resistance of an underwater pile is measured using a horizontal load applying apparatus which applies a horizontal load to the underwater pile to measure a horizontal resistance of the underwater pile by changing a direction of a penetration force generated when a suction pile penetrates an underwater ground.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: April 21, 2015
    Assignee: Korea Institute of Construction Technology
    Inventors: Ju Hyung Lee, Moon Kyung Chung, Ki Seok Kwak, Jae Hyun Park
  • Publication number: 20150101418
    Abstract: A system for and method of stretching a membrane is provided. The system has a top plate and a bottom plate that are in parallel with each other and a plurality of flexible v trusses. The top plate is configured to move vertically. The v trusses are placed in circle and have arms pointing to the center. There is a clamp for each arm for clamping a membrane. When external force is applied to push the top plate towards the bottom plate, the force bends the trusses, which is translated to the horizontal displacement of the trusses with arms. As the trusses move outwards, the clamped membrane is stretched.
    Type: Application
    Filed: April 17, 2013
    Publication date: April 16, 2015
    Inventors: William Campbell, Michael Howard, Jarrett Shamlian, Kai-Tak Wan
  • Publication number: 20150090047
    Abstract: A method for testing a batch of material used to obtain layers of fibres includes taking a specimen from the batch of material, exerting a tensile force on the specimen, heating the specimen so as to relax the fibres if the specimen contains stresses, after a predetermined period of time, no longer heating and no longer exerting the tensile force on the specimen, measuring a residual extension of the specimen which corresponds to a variation in length of at least a part of the specimen in the direction of the tensile force, before and after the tensile force, and considering the batch of material not to be compliant if the residual extension exceeds a given threshold.
    Type: Application
    Filed: September 24, 2014
    Publication date: April 2, 2015
    Applicant: AIRBUS OPERATIONS S.A.S.
    Inventor: Denis De Mattia
  • Publication number: 20150071832
    Abstract: A cell grabber has a unitary structure including a transparent grabber head at a terminus thereof and an elongated mounting portion extending therefrom for attachment to a force transducer. The grabber head has a planar or concave bonding surface which is coated with an adhesive film to secure the specimen, especially single cells, for tensile measurements. The cell grabber may be used in connection with auxotonic, isometric or isotonic force measurement systems.
    Type: Application
    Filed: September 3, 2014
    Publication date: March 12, 2015
    Inventor: Richard T. Udale
  • 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
  • Patent number: 8939032
    Abstract: A mobile anchor tester for testing an earth anchor or a deadman or any other suitable assembly. A mobile system is provided for testing in-ground anchors, the system including a mobile platform, such as a trailer or the bed of a pickup truck having a horizontal support surface spaced above the ground. A pair of adjustable leg assemblies are provided engaging the rear end of the mobile anchor tester. The legs are adjustable, typically having hydraulic cylinders engaged therewith. The adjustable leg assemblies will extend from the back or rear end of the mobile platform to the ground. An anchor testing assembly engaged with the horizontal support surface on the mobile platform has a cable at the removed end thereof. The cable includes a hook to engage the in-ground anchor.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: January 27, 2015
    Inventor: Wallace Bruce
  • Publication number: 20150013469
    Abstract: The invention relates to a method for checking ceramic ball heads (3) for hip-joint prostheses which have a receiving space (8) with a conical side face with a clamping cone angle ? and a cone inlet (7) and are subjected to a pressure in order to check areas of the receiving space (8). To ensure that all the checked ball heads (3) also remain functionally ready for relevant, oblique in vivo load situations without suffering damage, it is proposed that only the area of the cone inlet (7) is subjected to a radial force perpendicular to the longitudinal axis of the ball head (3).
    Type: Application
    Filed: February 13, 2013
    Publication date: January 15, 2015
    Applicant: Ceram Tec GmbH
    Inventors: Markus Flohr, Carsten Upmann, Hendrik Bertmaring
  • Patent number: 8931350
    Abstract: A cable test bench for testing a test cable to establish service life, replacement age, number of flex cycles, and/or winding behavior, has a deflection system including at least one deflector roll to deflect the test cable, one test cable drive to wind and unwind the test cable via the deflection system, and one test load to load the test cable. The cable test stand has an additional cable test drive for winding and unwinding a safety cable and/or the named test cable, and a control device for controlling the additional cable drive and/or the test cable drive in a manner wherein the two are adjusted to each other, in such a manner that the load of the test cable can be adjusted differently for different test cable segments and/or different winding directions and/or different winding cycles and/or different phases of a winding cycle.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: January 13, 2015
    Assignee: Liebherr-Components Biberach GmbH
    Inventors: Ilaka Mupdende, Norbert Stanger
  • Patent number: 8919205
    Abstract: A measuring device linked to a conveyor for transporting a flexible glass is provided. The measuring device includes a base, a first roller, and at least one second roller. The first roller disposed on the base moves back and forth along a first axis. The second roller disposed on the base moves back and forth along a second axis. The flexible glass enters the conveyor passing through the second roller and the first roller. An operation method of the measuring device is also provided.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: December 30, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Guo-Shing Huang, Cheng-Yi Shih, Chung-Huang Huang
  • Publication number: 20140360283
    Abstract: A padeye tester is used for testing the condition of padeyes on underwater structures. The padeye tester has a frame having feet to engaged with an underwater structure, and a hook for engaging with a pad eye. The hook is moved under hydraulic pressure to provide a tensile force on the padeye, and the response to this tensile force indicates the padeye condition.
    Type: Application
    Filed: November 24, 2011
    Publication date: December 11, 2014
    Applicant: PROSERV OFFSHORE PTY LTD
    Inventors: Jakub Kawka, Robert Friedrich Schmitz
  • Publication number: 20140352451
    Abstract: An apparatus for load testing a coupon may include a test frame and a pair of spaced apart load balancing assemblies connected to the test frame, each load balancing assembly of the pair of load balancing assemblies including a load leveling mechanism connected to the test frame and a plurality of spaced apart load plates, each load plate of the plurality of load plates having a first end pivotably connected to the load leveling mechanism and a second end, the second end of each load plate including a friction holder configured to frictionally engage an end of the coupon, wherein at least one load balancing assembly of the pair of load balancing assemblies is movable along an axis of movement with respect to an opposed load balancing assembly to communicate a load to the coupon.
    Type: Application
    Filed: June 3, 2013
    Publication date: December 4, 2014
    Applicant: The Boeing Company
    Inventor: Max U. Kismarton
  • Patent number: 8857266
    Abstract: The present invention relates to apparatus and method for evaluating the development of PS during polymerization of dental restorative composites, which includes using a tensometer for measuring deflection of a calibrated cantilever beam induced by PS and calculating PS from the measured deflection. A tensometer according to an embodiment of the present invention can be used to quantify PS at varying beam locations and heights, and determine trend in PS development as a function of beam length. More importantly, in the present invention, the development of polymerization shrinkage and the elastic modulus can be simultaneously obtained in real time.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: October 14, 2014
    Assignee: The United States of America, as Represented by the Secretary of Commerce, The National Institute of Standards and Technology
    Inventor: Martin Chiang
  • Publication number: 20140290379
    Abstract: A horizontal resistance of an underwater pile is measured using a horizontal load applying apparatus which applies a horizontal load to the underwater pile to measure a horizontal resistance of the underwater pile by changing a direction of a penetration force generated when a suction pile penetrates an underwater ground.
    Type: Application
    Filed: March 25, 2014
    Publication date: October 2, 2014
    Applicant: Korea Institute of Construction Technology
    Inventors: Ju Hyung LEE, Moon Kyung CHUNG, Ki Seok KWAK, Jae Hyun PARK
  • Patent number: 8813574
    Abstract: A method and device for testing the tensile stress in tension elements of a tension element cord utilizes a measuring gage which is clamped between two tension elements of the tension element cord. The gage establishes a reference point relative to a fixed point stationary with respect to the tension element cord. The gage extends horizontally between two vertically extending length portions of the two tension elements. Then it is determined whether the reference point of the measuring gage is shifted with respect to the fixed point in the horizontal direction, wherein such a shift is dependent on a difference in the tension stresses in the two tension elements.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: August 26, 2014
    Assignee: Inventio AG
    Inventor: Daniel Fischer
  • Patent number: 8806952
    Abstract: In one aspect, an apparatus for measuring a tension force on a net cord of a sports net is disclosed. The apparatus may include a housing configured to connect to a static post. The apparatus may also include a slidable member and attachment members. The attachment members may be configured to engage a portion of the net cord. A resilient member inside the housing may be connected to the slidable member, and an indicator member may be connected to the slidable member within the housing. The slidable member may be configured to move within the housing in response to and by a distance proportional to an amount of tension force on the net cord. The indicator member may be connected to the slidable member such that a portion of the indicator member may be exposed through a slotted opening defined in the housing.
    Type: Grant
    Filed: July 15, 2012
    Date of Patent: August 19, 2014
    Inventor: David Ewing Glass
  • Publication number: 20140157907
    Abstract: A device for testing tension between the jaws of a meter socket in an electric meter base comprising an aluminum blade having dimension similar to a blade of an electric meter designed to fit in the meter socket jaw, the device further comprising a handle having a proximal end and a distal end, the blade rigidly supported within the distal end, the handle having a weight which is distributed along the handle so that sufficient torque is exerted on the blade when the blade is inserted in a meter socket to be tested that the device rotates downwardly if there is insufficient tension. A method of testing tension in a meter socket using the device is also disclosed.
    Type: Application
    Filed: December 10, 2012
    Publication date: June 12, 2014
    Inventors: David A. Johnson, Thomas L. Clarke
  • Patent number: 8739502
    Abstract: A method of determining a wrap force or payout percentage at which to wrap a load with packaging material may include dispensing packaging material. The method may also include forming a tear in a portion of the packaging material. The method may further include identifying a first payout percentage at which the tear exhibits a first behavior. The method may also include identifying a second payout percentage at which the tear exhibits a second behavior. The method may further include selecting a third payout percentage between the first payout percentage and the second payout percentage, for wrapping the load.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: June 3, 2014
    Assignee: Lantech.com, LLC
    Inventor: Patrick R. Lancaster, III
  • Publication number: 20140137660
    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: Application
    Filed: January 28, 2014
    Publication date: May 22, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: David L. Meadows, Robert P. Darbe, Keith D. Pewitt
  • Patent number: 8707798
    Abstract: A testing apparatus for characterizing a tension strength of a fillet bond of a test specimen may include a lower fixture and an upper fixture. The test specimen may include a skin component bonded to a stiffener component. The lower fixture may maintain the stiffener component in a fixed position. The upper fixture may engage the skin component at a pair of discrete engagement locations on opposite sides of the fillet bond. The upper fixture may be mechanically coupled to a gimbal joint and may substantially isolate the filet bond from asymmetric bending during application of a tension test load to the fillet bond.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: April 29, 2014
    Assignee: The Boeing Company
    Inventors: Paul S. Gregg, Brian S. Kasperson, Jack J. Esposito
  • Patent number: 8671771
    Abstract: A biaxial tensile testing machine performing a tensile test of a test piece by stretching the test piece in four directions along two axes perpendicular to each other includes: first and second turntables which are disposed so as to be parallel to each other and relatively rotatable about a rotary axis along the planer direction thereof; first to fourth link mechanisms which are provided at 90° intervals in the circumferential direction about the rotary axis so that one ends of respective members of a pair of members are rotatably connected to each other, and the other ends of respective members of the pair of members are attached across the first and second turntables; and first to fourth test piece holding units which are respectively attached to the first to fourth link mechanisms and hold the test piece.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: March 18, 2014
    Assignee: Mitsubishi Materials Corporation
    Inventor: Yasuhiro Hanabusa
  • Publication number: 20140060200
    Abstract: A method and system for determining creep capability of turbine components is provided. A plurality of turbine components are manufactured from a material having known creep characteristics. Each of the plurality of turbine components is subjected to at least one of tensile stress, centrifugal stress and thermal stress, until a measurable amount of creep is acquired. The turbine components so tested are compared against known creep characteristics for the material used in the components. Components exhibiting an amount of creep greater than a predefined amount of creep will be separated from the plurality of turbine components and not placed into service.
    Type: Application
    Filed: June 6, 2012
    Publication date: March 6, 2014
    Inventor: John David Ward
  • Publication number: 20140060201
    Abstract: A measuring device linked to a conveyor for transporting a flexible glass is provided. The measuring device includes a base, a first roller, and at least one second roller. The first roller disposed on the base moves back and forth along a first axis. The second roller disposed on the base moves back and forth along a second axis. The flexible glass enters the conveyor passing through the second roller and the first roller. An operation method of the measuring device is also provided.
    Type: Application
    Filed: November 15, 2012
    Publication date: March 6, 2014
    Applicant: Industrial Technology Research Institute
    Inventors: Guo-Shing Huang, Cheng-Yi Shih, Chung-Huang Huang
  • Publication number: 20140045987
    Abstract: The correlation between the aggregation structure of inorganic fillers such as silica microparticles in silicone rubbers and tensile strength and tear strength still has not been elucidated. The purpose of the invention is to provide a curable silicone rubber composition with which a silicone rubber of superior tensile strength and tear strength can be obtained. The invention provides a curable silicone rubber composition that is characterized in that the aggregate size of the inorganic filler prior to extending as determined by synchrotron X-ray diffraction measurement is 20-25 nm and the maximum value for the orientation coefficient of the curable silicone rubber composition when drawn as determined by synchrotron X-ray diffraction measurement is 0.25-0.35.
    Type: Application
    Filed: March 29, 2012
    Publication date: February 13, 2014
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventors: Kenta Sato, Kazunobu Senoo
  • Publication number: 20140026676
    Abstract: Generally, the subject matter herein relates to detecting the presence of weak BEOL sites in a metallization system. One disclosed method includes performing a lateral force test on a pillar bump formed above a metallization system of a semiconductor chip, which includes contacting the pillar bump with a test probe while moving the test probe at a substantially constant speed that is less than approximately 1 ?m/sec along a path that is oriented at a substantially non-zero angle relative to a plane of the metallization system. Furthermore, the test probe is moving substantially away from the metallization system so that a force imposed on the pillar bump by the test probe has an upward component that induces a tensile load on the metallization system. The disclosed method also includes determining a behavioral interaction between the pillar bump and the metallization system during the lateral force test.
    Type: Application
    Filed: July 27, 2012
    Publication date: January 30, 2014
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Vivian W. Ryan, Holm Geisler, Dirk Breuer
  • Publication number: 20130340534
    Abstract: A testing apparatus for characterizing a tension strength of a fillet bond of a test specimen may include a lower fixture and an upper fixture. The test specimen may include a skin component bonded to a stiffener component. The lower fixture may maintain the stiffener component in a fixed position. The upper fixture may engage the skin component at a pair of discrete engagement locations on opposite sides of the fillet bond. The upper fixture may be mechanically coupled to a gimbal joint and may substantially isolate the filet bond from asymmetric bending during application of a tension test load to the fillet bond.
    Type: Application
    Filed: June 25, 2012
    Publication date: December 26, 2013
    Applicant: THE BOEING COMPANY
    Inventors: Paul S. Gregg, Brian S. Kasperson, Jack J. Esposito
  • Publication number: 20130327152
    Abstract: A test apparatus includes a first surface configured to apply a linear force in two directions and a first attachment assembly configured to secure a first end of a cable to the first surface. The first attachment assembly is further configured to permit two degrees of rotational freedom. The test apparatus also includes a second surface, opposite the first surface, and a second attachment assembly configured to secure a second end of the cable to the second surface. The apparatus facilitates testing of a bending force and a kink force associated with the cable.
    Type: Application
    Filed: June 11, 2012
    Publication date: December 12, 2013
    Applicant: VERIZON PATENT AND LICENSING INC.
    Inventor: David Zhi Chen
  • Publication number: 20130327153
    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: Application
    Filed: June 11, 2013
    Publication date: December 12, 2013
    Inventor: Jeffrey O'Rourke
  • Publication number: 20130298693
    Abstract: A method of fatigue testing a component comprising the steps of machining a channel of predetermined depth and predetermined width in a surface of a component, applying a salt solution into the channel in the surface of the component and heating the component to a suitable temperature to evaporate the solvent from the salt solution to deposit the salt in the channel in the surface of the component, placing the component in an atmosphere containing air and sulphur dioxide at a predetermined temperature for a predetermined period of time to precondition the grain boundaries, and fatigue testing the component. The method is useful for determining the fatigue life of gas turbine engine discs or gas turbine engine rotor blades particularly the firtree shaped disc posts or the firtree shaped rotor blade roots.
    Type: Application
    Filed: April 5, 2013
    Publication date: November 14, 2013
    Applicant: ROLLS-ROYCE PLC
    Inventors: Grant GIBSON, Andrew Jonathan LEGGETT
  • Publication number: 20130291647
    Abstract: A method for determining fatigue strength of engine components, comprising the steps of -providing an engine component, -loading at least part of the component to a level below its tensile strength and measuring its resulting deformation, -determining at least one magnitude on the basis of the load applied and the deformation measured, -providing a predetermined relationship between measured fatigue strength of components and the aforesaid at least one magnitude determined on the basis of the ratio between load applied to engine components and their deformation, -determining the fatigue strength of the engine component provided,on the basis of the at least one magnitude determined and the predetermined relationship.
    Type: Application
    Filed: January 31, 2012
    Publication date: November 7, 2013
    Inventor: Fredrik Wilberfors
  • Publication number: 20130276546
    Abstract: The present invention relates to methods for non-destructive quantitative determination of the internal microstresses of type II and/or III which are based on subtraction of the maximum values of the load stress dependency of the maximum Barkhausen noise amplitudes on a test piece before and after hardening of the test piece in specific thermal hardening states. The present invention hence enables independent determination of the internal microstress of type II or III, simultaneous and resolved determination of the internal microstresses of type II and III and also determination of the sum of both types of internal microstresses.
    Type: Application
    Filed: March 21, 2013
    Publication date: October 24, 2013
    Inventors: Iris Altpeter, Klaus Szielasko, Madalina Rabung, Siegfried Schmauder, Peter Binkele
  • Patent number: 8561474
    Abstract: The invention relates to a triaxial cell for testing geomaterials on specimens. The triaxial cell has at least one piston for subjecting a specimen to stress directed along the longitudinal axis of the specimen. Hydraulic means are provided for subjecting the lateral wall of the specimen to a stress, under the pressure of a fluid. The cell has at least one sealed test chamber-in which the specimen is placed, and a circuit for the controlled pressurization of said test chamber with a fluid, called the pressurizing fluid, and for the controlled draining of said fluid therefrom. The cell has mechanisms for subjecting the specimen to a tensile force, which are configured for removably fastening it between two attachments intended to move apart or closer together under the action of the piston so as to subject said specimen to longitudinal stress or on the contrary to remove the load therefrom.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: October 22, 2013
    Assignee: Universite des Sciences et Technologies de Lille
    Inventor: Jean Secq
  • Patent number: 8561475
    Abstract: A method and apparatus for investigating subsurface properties of sediment, soil, snow, food stuff and other soft materials incorporates a probe head, preferably in the form of a coil spring that functions as a screw thread, which moves into the soil, snow, sediment, food stuff or other soft material, isolates a column of the material and applies tension to that column while measuring the applied force with a force sensor.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: October 22, 2013
    Inventors: Bruce David Johnson, Bernard Paul Boudreau, Mark Andrew Barry, Kelly Maureen Dorgan, Peter Alfred Jumars
  • Publication number: 20130247682
    Abstract: A micromachined or microelectromechanical system (MEMS) based push-to-pull mechanical transformer for tensile testing of micro-to-nanometer scale material samples including a first structure and a second structure. The second structure is coupled to the first structure by at least one flexible element that enables the second structure to be moveable relative to the first structure, wherein the second structure is disposed relative to the first structure so as to form a pulling gap between the first and second structures such that when an external pushing force is applied to and pushes the second structure in a tensile extension direction a width of the pulling gap increases so as to apply a tensile force to a test sample mounted across the pulling gap between a first sample mounting area on the first structure and a second sample mounting area on the second structure.
    Type: Application
    Filed: May 7, 2013
    Publication date: September 26, 2013
    Applicant: Hysitron Inc.
    Inventors: Yunje Oh, Edward Cyrankowski, Zhiwei Shan, Syed Amanula Syed Asif
  • Patent number: 8528416
    Abstract: Provided are an apparatus for testing a tensile strength under a high temperature condition and a unit for measuring elongation provided in the same. The apparatus for testing a tensile strength under a high temperature condition includes a base frame part, a test sample loader and a cylinder part connected to the base frame part and applying a tensile force to a test sample, and a heater for forming a high temperature condition to the test sample. The unit for measuring elongation includes a movable frame, a vertical bar, and a measurement head part connected to the vertical bar to measure elongation of the test sample and blocking heat from the heater.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: September 10, 2013
    Assignee: Korea Institute of Construction Technology
    Inventors: Bong Jae Lee, Yong Ho Yoo, Heung Youl Kim, Hyung Jun Kim, Kyung Hoon Park
  • Patent number: 8505388
    Abstract: An apparatus for simulating stresses experienced by a rotor blade root in a complementary disc fixture, especially in gas turbine engines. The apparatus comprises a mounting member for receiving a blade speciman having a root. The mounting member has an aperture for receiving the root of the blade specimen, and blade contacting regions on either side of said aperture for holding said blade specimen in said aperture. The apparatus further comprises an actuator for applying a tension load to said blade specimen. The blade contacting regions are undercut such that there is a gap between said blade contacting regions and a main body of said mounting member, whereby the blade contacting regions are able to deflect outward into said gap when a tension load is applied to the blade specimen.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: August 13, 2013
    Assignee: Rolls-Royce, PLC
    Inventor: Paul J Mason
  • Patent number: 8501026
    Abstract: A method for determining a minimum tension compensation stress which will have a membrane of a thickness of less than or equal to one micrometer, secured to a frame, having, in the absence of any external stress, a desired deflection. The membrane can be made as planar as possible in absence of any external stress, and its thickness can be less than or equal to one micrometer.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: August 6, 2013
    Assignee: Commissariat à l'énergie atomique et aux énergies alternatives
    Inventors: Christophe Constancias, Bernard Dalzotto, Frank Fournel, Philippe Michallon, Hubert Moriceau, Valerie Pouteau
  • Patent number: 8499646
    Abstract: Tension monitoring is described using a sensor which may exhibit an offset for which compensation may be provided to produce a zero voltage amplified output or to increase dynamic range. An arrangement determines whether a power reset is responsive to a battery bounce such that an initially-measured system start-up parameter can be retained. The start-up parameter is automatically saved at start-up if the power reset is responsive to a start-up from a shut-down condition. The start-up parameter may be a zero tension amplified output responsive to the sensor offset at zero tension. Protection of a tension data set is provided such that no opportunity for altering the data set is presented prior to transfer of the data set. A housing configuration forms part of an electrical power circuit for providing electrical power to an electronics package from a battery.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: August 6, 2013
    Assignee: Merlin Technology, Inc.
    Inventors: Albert W. Chau, Rudolf Zeller, John E. Mercer, Charles Yu Yat Tsang
  • Publication number: 20130192384
    Abstract: The invention pertains to a method and apparatus for testing the tensile strength of a material, particularly an electrically nonconductive material, at a temperature above ambient temperature. The test method is useful for determining the potential suitability of a material for use as a development medium in a thermal development process for preparing relief printing forms. One embodiment of the method includes mounting the strip between upper and lower chucks of a tensile test machine; positioning a means for generating a hot air stream adjacent the strip so that the stream does not impinge the strip; heating the hot air stream to a predetermined temperature above ambient temperature; repositioning the hot air stream so that the stream impinges the strip; and starting the tensile testing when the hot air stream at the predetermined temperature begins heating the strip.
    Type: Application
    Filed: July 27, 2012
    Publication date: August 1, 2013
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: HAO CHANG, George J. Broda, III, Clifford K. Deakyne, Stacy M. Hamlet
  • Publication number: 20130145860
    Abstract: A testing apparatus includes a retaining panel, a screw pole, two securing panels moveably attached to the screw pole, and two mounting members. Each of the two securing panels is slidably attached to the retaining panel. Each of the two mounting member is engaged with each of the two securing panels. The two securing panels are moveable relative to the screw pole for sandwiching an electronic device, and each of the two mounting member is engaged with the screw pole, for prevent the two securing panels from disengaged from the electronic device.
    Type: Application
    Filed: May 17, 2012
    Publication date: June 13, 2013
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (WUHAN) CO., LTD.
    Inventors: WEI-MIN QIN, CONG-XU HU, YU-LIN LIU
  • Publication number: 20130139652
    Abstract: A multiple stud tensioner machine adapted to exert a longitudinal pre-stressing traction on a plurality of studs (2), the stud tensioner machine comprising a sensor supporting assembly (6) adapted to receive a plurality of elongation sensors (11) arranged in a row and positioning means adapted to move one (11a) of said sensors from said row into an operating engagement with one (2a) of said studs.
    Type: Application
    Filed: April 2, 2010
    Publication date: June 6, 2013
    Inventor: Didier Declerck
  • Patent number: 8443679
    Abstract: The invention relates to a testing device for the static and dynamic testing of workpieces, comprising a first clamping device and a second clamping device for the workpiece, and a drive for the cyclical displacement of the second clamping device, wherein the drive has a rocker arm on which the second clamping device is pivotably mounted and the two ends of the rocker arm are connected in each case to a pivotably mounted link, and the free ends of the links are coupled in each case to a crank drive, wherein the links protrude from the ends of the rocker arm in the same direction in the basic position of the testing device.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: May 21, 2013
    Inventor: Frank Thilo Trautwein
  • Publication number: 20130119255
    Abstract: A method in a wearable electronic device of detecting clothing includes: detecting whether the wearable electronic device is coupled to a user, determining whether the wearable electronic device is covered, and adjusting one or more device settings of the wearable electronic device. A secondary check can perform an additional determination of whether the wearable electronic device is covered with clothing. One or more sensors, such as a skin sensor, a tension sensor, an infrared sensor, or microphones, can be used to execute the steps in the wearable electronic device.
    Type: Application
    Filed: November 16, 2011
    Publication date: May 16, 2013
    Applicant: Motorola Mobility, Inc.
    Inventors: Timothy Dickinson, Rachid M. Alameh