Patents
Patents for G01N 3 - Investigating strength properties of solid materials by application of mechanical stress (30,941)
09/1990
09/07/1990WO1990010189A1 Device for measuring the thermomechanical characteristics of a test sample
09/05/1990CN2061691U Automatic loading device for lever-type consolidometer
09/05/1990CN2061690U Containerized bag grab
09/04/1990US4953973 Detection of compressive residual stresses using the method of caustics
09/04/1990US4953406 Rheometer die assembly
08/1990
08/29/1990EP0384477A2 Method and machine for bending tubes
08/29/1990CN1009389B Inserument and method for measuring permeability and porosity of rock core under high pressure
08/28/1990US4951504 Process and apparatus for testing the axles and/or springs and/or adjacent components of commercial vehicles
08/23/1990WO1990009582A1 Process and device for monitoring the occurrence or spreading of fractures or cracks in materials, workpieces, component parts, structures or flying objects, in particular in earthquake-prone regions or movement of strata during tunnelling
08/23/1990DE4004171A1 Tear detector for mechanical loading test sample - uses capacitive sensor coupled via impedance converter to electronic evaluation circuit
08/23/1990DE3905409A1 Arrangement for the laboratory-independent determination of the normal-stress-dependent shear stress and of the associated shear displacement in undisturbed and disturbed soil samples
08/23/1990DE3904903A1 Insert for clamping thin-walled hollow profiles, especially for internal pressure tests
08/16/1990EP0382685A2 Apparatus for measuring the flexural resistance of ribbed patterns
08/16/1990EP0382532A1 Method for determining crack lengths
08/16/1990EP0382263A2 Electronic bale density controller
08/16/1990EP0381717A1 Process for measuring yarn strength.
08/16/1990DE4004170A1 Arrangement to detect material failure in structural materials - having probe elements, differential amplifier computer and recording or warning signal unit
08/16/1990DE3903269A1 Control device for a tribological measuring device
08/14/1990US4947686 Method and apparatus for determining web tension setting
08/08/1990CN2060230U Pill hardness testing instrument
08/07/1990US4947341 Method of predicting fatigue lifetimes of metallic structures
08/07/1990CA1272395A1 Apparatus and method for adhesive testing of coatings
08/02/1990DE3901432A1 Measured value acquisition on a Brinell hardness testing machine with the aid of a video camera and a computer
07/1990
07/31/1990US4945490 Brinell hardness indicator with digital readout
07/26/1990WO1990008306A2 Fiber testing apparatus and method
07/25/1990EP0379230A2 Electronic bale density controller
07/25/1990CN2059740U Double slide callipers
07/24/1990US4943930 Method and apparatus for non-destructive evaluation of concrete
07/24/1990US4942769 Method of testing cores
07/24/1990US4942768 Paving material testing machine
07/19/1990DE3901118A1 Device for determining the resistance to cutting and damage of the running surface of vehicle tyres
07/18/1990EP0270590B1 Apparatus for testing the resistance to cleavage of cardboard tubes
07/18/1990CN1008830B Corrosion method for testing the stress-resistance of connecting legs of semiconductor devices
07/17/1990US4941359 For the three-point flexure testing of ceramics
07/12/1990WO1990007704A1 Hardness testing machine for testing hardness under load and process for adjusting said machine
07/11/1990CN1043650A Inertia weld notch control through use of differential wall thicknesses
07/11/1990CN1043642A Shock-exciting method of electric eddy-magnetic push-pull and shock exciter
07/11/1990CN1008773B Unidirectional enamel-scraper for enameled wire
07/10/1990US4940891 Automated system for measuring the strength of optical fibers
07/10/1990US4939927 Device to measure the tenderness of meat
07/10/1990US4939922 Method and device for examining the wear and friction properties of surface materials exposed to sliding friction
07/05/1990DE3942695A1 Appts. for measuring stiffness of flat objects - has two sets of rollers of small inertia and with elastic coating driven by micro-motors
07/04/1990EP0376840A1 Device to fix a fragile object such as a mirror
07/04/1990CN2058987U Electric turning over disengaging device
07/04/1990CN2058986U Hydraulic overload limiter
07/03/1990US4938055 Apparatus for testing abrasion
06/1990
06/28/1990DE3843588A1 Haertepruefgeraet zur haertepruefung unter last und verfahren zum justieren eines derartigen haertepruefgeraetes Hardness tester at haertepruefung under load and process to adjust such a hardness tester
06/27/1990EP0375590A2 Inertia weld notch control through the use of differential wall thicknesses
06/27/1990EP0374735A2 Optical monitor for superplastic forming
06/27/1990EP0374470A2 Expansible reel for tests on filamentary material, in particular optical fibres
06/27/1990CN2058753U Surface-brittleness testing machine
06/26/1990US4936140 Device and method for calibrating a non-destructive sheet strength measuring system
06/26/1990US4936135 Material wear testing devices and techniques
06/21/1990DE3842546A1 Method and device for the non-destructive measurement of the hardness of a specimen
06/21/1990DE3842061A1 Method for the determination of mechanical defects in brittle material moulded parts, especially ceramic substrate plates
06/20/1990EP0373332A1 Apparatus for the non-destructive detection of inhomogeneities in elastic materials
06/20/1990CN2058486U Portable testing device for hardness
06/20/1990CN1043205A High contrast high temp. grate manufacturing process and applied technology
06/19/1990US4934199 Method and apparatus for preparing specimens for destructive testing of graphite epoxy composite material
06/19/1990US4934185 Device for measuring adhesive strength and shear strength of coated film
06/13/1990EP0372636A2 A method and cell for freezing formation layer sample tests
06/13/1990CN1042991A Trial staking technology combining vibration method and transfer function method
06/12/1990US4932267 Flexure coupling
06/12/1990US4932239 Standard target for explosive charge testing
06/06/1990EP0371058A1 Self aligning test grip
06/06/1990CN2058011U Metal bending tester
06/05/1990US4930355 Hydraulic drive apparatus and method for instrumented penetration and tensile-impact testing
06/05/1990US4930354 Automatic bond determinator
06/05/1990US4930346 Method for the determination of the properties of mouldable materials, particularly for the determination of the plastic and reologic properties thereof
06/02/1990CA2004389A1 A method and cell for freezing formation layer sample tests
05/1990
05/31/1990DE3840261A1 Loading device
05/30/1990CN2057753U Elastic membrane broken-expanding intensity instrument
05/29/1990US4928533 Burst testing apparatus
05/29/1990US4928532 Hydrostatic self-aligning axial/torsional mechanism
05/23/1990CN2057513U Pile measurer with signal self-synchronous strengthening apparatus
05/22/1990US4926694 Delamination test apparatus and method
05/15/1990US4924709 Tension testing tool
05/15/1990US4924708 Method for calculating crack lengths of conductive sensors
05/09/1990EP0367218A2 A resin flow and curing measuring device
05/09/1990EP0366781A1 High temperature extensometer system
05/08/1990US4922748 Method for monitoring thinning of pipe walls and piping component for use therewith
05/02/1990EP0365546A1 Apparatus for testing hardness under load.
05/02/1990EP0365536A1 Biocompatible polyorganosiloxane composition for cell culture apparatus.
05/02/1990CN1041823A Method and equipment for prefabricating fatigue crack on fragile materials
05/01/1990US4920807 Method for predicting the fatigue life of a vehicle suspension component
04/1990
04/25/1990EP0364919A1 Device for the clamping and sudden release of a test bar subjected to tensile and/or torsional forces
04/24/1990US4919646 System for automatically balancing a centrifuge in operation
04/24/1990US4918993 Method of gauging pre-existing in-situ stress from an extracted sample
04/24/1990CA1268054A1 Method of and an apparatus for measuring the properties, particularly the compactibility of a stiff mass to be cast
04/19/1990WO1990004161A1 Rheometer calibration
04/19/1990DE3834846A1 Method and device for the examination of the surface condition in terrain which is difficult to access or inaccessible
04/19/1990DE3834845A1 Method and device for the examination of the surface condition in terrain which is inaccessible or difficult to access
04/18/1990EP0364252A2 Wear testing devices
04/18/1990EP0364217A2 Improved torsional wave fluid sensor and system
04/17/1990US4916954 Fatigue testing apparatus
04/17/1990US4916942 Notch gauge tool
04/17/1990CA1267791A1 Process and device for determining the internal condition of trees or wooden components
04/12/1990DE3834123A1 Clamping head for the clamping of tensile samples in tensile testing machines
04/11/1990EP0362616A1 Apparatus and process for measuring the elastic and viscoelastic deformation of the skin
04/10/1990US4914965 Crack shear displacement gage