| Patents for G01N 3 - Investigating strength properties of solid materials by application of mechanical stress (30,941) |
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| 10/09/1991 | EP0450716A2 Method and equipment for measuring firmness of fruits and vegetables |
| 10/08/1991 | US5055648 Apparatus and method for mechanical properties testing |
| 10/08/1991 | US5054502 Device and a method for measuring the elastic and elasticoviscous deformability of skin |
| 10/08/1991 | US5054324 Apparatus for clamping a test sample without any bending moment |
| 10/08/1991 | US5054314 Mechanical fatigue test bench for engine cylinder heads |
| 10/08/1991 | CA1290168C Elastodynamic testing of elongate compressible material |
| 10/01/1991 | US5052221 Method for preparing paper for stress-strain characteristic determination |
| 10/01/1991 | CA1289771C Temperature compensating continuous panel tester |
| 09/30/1991 | CA2039442A1 Microhardness tester |
| 09/25/1991 | EP0448186A2 Procedure and device for the investigation of the behaviour of bending of tubes |
| 09/25/1991 | EP0447986A2 Testing apparatus |
| 09/25/1991 | CN1054845A Automatic identification device of specimen seal impression |
| 09/24/1991 | WO1991014924A1 Tool wear detector |
| 09/24/1991 | US5051919 Testing of poles |
| 09/24/1991 | US5050690 In-situ stress measurement method and device |
| 09/24/1991 | US5050437 Apparatus for determining strength properties of long textile test material |
| 09/24/1991 | CA2077535A1 Tool wear detector |
| 09/22/1991 | CA2038679A1 Test device |
| 09/19/1991 | WO1991014156A1 Hair measurement |
| 09/19/1991 | DE4105115A1 Wound material hardness measurement instrument - has sprung pressure plate at the end face of the housing to regulate position of the penetration body |
| 09/19/1991 | DE4105085A1 Wound textile hardness testing - uses series of tests for mean value to be calculated and displayed |
| 09/18/1991 | EP0447156A2 Apparatus for measuring grindability of powder material |
| 09/18/1991 | CN1054665A Method and apparatus for abrading |
| 09/18/1991 | CN1054664A Ductility metals fracture toughness property kic determining process by simple drawing test |
| 09/18/1991 | CN1013980B Directional earth-filling method and apparatus for the deep-hole installation of a sensor |
| 09/17/1991 | US5048353 Method and apparatus for roll profile measurement |
| 09/17/1991 | US5048347 Method for testing corrugated medium |
| 09/17/1991 | US5048346 Method of estimating the thermal stress of a heat-resistant member by testing a model of the member made of a different material |
| 09/12/1991 | DE4006948A1 Wear monitoring system for cyclically loaded component - compares static distribution difference signals at end of each loading cycle with stored reference signals |
| 09/11/1991 | EP0356429B1 Process and device for testing spring elements with essentially linear spring excursion |
| 09/11/1991 | CN2084616U Impact testing machine for bicycle frame |
| 09/11/1991 | CN2084615U Single brick shearing tester for brick wall |
| 09/10/1991 | US5046368 Apparatus and method for fatigue testing a wheel |
| 09/10/1991 | US5046367 Dynamic viscoelasticity measurement apparatus with output signal offset correction |
| 09/10/1991 | US5046357 Hardness testing diamond indenter |
| 09/09/1991 | WO1991014182A1 Monitoring of soil |
| 09/04/1991 | CN1013809B Biaxial electronic tensile test machine |
| 09/03/1991 | US5044210 Method and means for testing the strength of plant stalks |
| 09/03/1991 | US5044193 Lateral displacement measuring apparatus and method |
| 09/02/1991 | WO1991013337A1 Method and apparatus for measuring irregularities and hardness of a roll surface |
| 08/28/1991 | CN2083750U Metal polar thin belt winding type clamping apparatus |
| 08/28/1991 | CN1013713B Method and equipment for prefabricating fatigue crack on fragile materials |
| 08/27/1991 | US5042289 Container end test system |
| 08/22/1991 | WO1991012513A1 Thermal expansion driven indentation stress-strain system |
| 08/22/1991 | CA2075370A1 Thermal expansion driven indentation stress-strain system |
| 08/21/1991 | EP0442207A1 A method and apparatus for testing the response of a stress wave sensor |
| 08/21/1991 | CN2083291U Deflection measuring apparatus of concrete member |
| 08/14/1991 | EP0441639A2 Instrument for the application of controlled mechanical loads to tissues in sterile culture |
| 08/14/1991 | DE4004378A1 Tool wear determn. from friction with dressing tool - is measured by one or more vibration parameters |
| 08/14/1991 | DE4004344A1 Thin cylinder hardness testing method - being produced by knife edge of standard material pressed into and then retracted to produce response curves |
| 08/14/1991 | DE4004242A1 Sectional timber testing device - uses thin wire caused to penetrate wood with measurement of penetration depth and penetration rate |
| 08/14/1991 | CN1053840A Method and apparatus for quantitatively roll hardness |
| 08/13/1991 | US5039228 Fixtureless environmental stress screening apparatus |
| 08/13/1991 | US5038619 Process and an apparatus for testing vehicle stabilizers |
| 08/13/1991 | US5038617 Apparatus for the undirectional vibration testing of an equipment under a controlled atmosphere |
| 08/13/1991 | CA2035414A1 Method and apparatus for abrading |
| 08/09/1991 | CA2035907A1 Instrument for the application of controlled mechanical loads to tissues in sterile cultures |
| 08/08/1991 | DE4003596A1 Standard corrugated metal hose test procedure - applying torque in opposite rotational directions to length held between terminal mounts |
| 08/07/1991 | EP0439998A1 Testing device with acceleration tube |
| 08/07/1991 | CN2082411U Multipurpose machine for building materials testing |
| 08/07/1991 | CN1013461B Non destructive testing for creep damage of a ferromagnetic workpiece |
| 08/06/1991 | US5038295 Solid propellant service life analysis via nondestructive testing |
| 08/06/1991 | US5036709 Paving materials testing machine |
| 08/06/1991 | US5036696 Method for measuring fracture toughness of brittle media |
| 08/01/1991 | WO1991011698A1 Method and apparatus for quantitatively evaluating roll hardness |
| 08/01/1991 | DE4002293A1 Measuring deformations or specimens in test machines - by detecting changes in positions of incidence of light beam from elements mounted on specimen |
| 07/31/1991 | EP0439405A1 Device for automatically determining physical characteristics of a product and method of measurement using this device |
| 07/30/1991 | CA1287170C Rheometer rheological/viscoelastic measuring apparatus and technique |
| 07/26/1991 | WO1991011699A1 Optical inspection method and apparatus |
| 07/26/1991 | CA2071210A1 Optical inspection method and apparatus |
| 07/24/1991 | EP0438347A1 Method and apparatus for controlling the bedding of a post |
| 07/24/1991 | EP0344194B1 Process and device for testing motor vehicle stabilizers |
| 07/24/1991 | EP0252927B1 Determining flow properties of particulate materials |
| 07/24/1991 | CN2081534U Frictional wear testing machine |
| 07/24/1991 | CN2081533U Electric draw-off instrument for concrete drawing test |
| 07/23/1991 | US5033720 Apparatus for determining metal properties |
| 07/23/1991 | US5033309 Apparatus for measuring shear stress and strain characteristics of adhesives |
| 07/23/1991 | US5033308 Method and apparatus for testing characteristics of extruded elastomeric weatherstrips |
| 07/23/1991 | US5033298 Process and an apparatus for testing spring-loaded elements having essentially linear pitch of spring |
| 07/18/1991 | DE4000642A1 Concrete coating test - uses grid scoring for section of coating and clinging foundation to be peeled off with adhesive strip |
| 07/11/1991 | DE4000280A1 Optical measuring, evaluating and documentation - ascertaining tension-expansion ratio of material by filming by camera and evaluating by computer |
| 07/10/1991 | EP0436285A1 Locally compensated deformation sensor |
| 07/10/1991 | CN2080667U Specimen tensile fatigue testing apparatus for elastic material |
| 07/10/1991 | CN2080666U Spheric material strength tester |
| 07/09/1991 | US5029469 Sheet tension sensor |
| 07/03/1991 | EP0435419A2 Resiliently deformable toy |
| 07/03/1991 | CN2080174U Three shaft high speed shearing impact testing device |
| 07/02/1991 | US5027660 Soil plastic limit testing device |
| 07/02/1991 | US5027650 Method for characterization of adhesion between hard materials |
| 06/28/1991 | CA2033015A1 Method of non-destructive inspection for resinous automotive bumper beams |
| 06/27/1991 | WO1991009294A1 Clamping device for high-strength filamentary or ribbon-shaped materials |
| 06/26/1991 | EP0434633A1 A method for checking the characteristics of coating layers, particularly layers of paint on metals |
| 06/26/1991 | EP0434281A2 Apparatus and method for determining elastic properties of optical fiber by contact area measurement |
| 06/25/1991 | US5026054 Toy |
| 06/25/1991 | US5025669 Device for carrying out stress tests on rock sample and other materials |
| 06/25/1991 | US5025668 Cell for the triaxial stress testing of a rock sample and a testing method using such a cell |
| 06/25/1991 | US5025655 Impact test hammer |
| 06/20/1991 | DE3942111C1 Stretching device for tensile testing machine - has two deflection bodies fixed relative to chucks for removed on loading of chucks |
| 06/19/1991 | EP0433177A1 Method of testing split ceramic alignment sleeve for an optical fibre connector and apparatus therefor |
| 06/19/1991 | EP0433108A1 Process and device to position a probe in a furnace and furnace with such a device |