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Class 374/46 - With loading of specimen (e.g., stress or strain)


Subclass of Class 374 - Thermal measuring and testing
Definition: Subject matter wherein the nonthermal test includes direct
No. of patents: 40
Last issue date: 05/29/2012


NumberTitleIssue Date
8186875Method for determining reheat cracking susceptibility
System, computer software and method for determining a susceptibility to reheat cracking of a sample of material, which includes a welded area. The method includes measuring a length of the sample, applying a first stress to the sample to achieve a predetermined elo...
05/29/2012
7563021Method device and recording medium where program is recorded, for deciding residual travel life and end of life of run-flat tire that continues traveling in run-flat condition
There are provided a process and the like for judging a residual lifetime of a run-flat tire and an end stage of the residual lifetime thereof during continuous running at a run-flat state. The process for judging the residual lifetime of the tire of the invention i...
07/21/2009
7287903Method and apparatus for rapid thermal testing
An apparatus for rapid thermal testing of samples consisting of a single sample chamber in which the samples are preferably arranged circularly around the opening through which a fluid of varying temperature, preferably air, is introduced to provide for rapid, unifo...
10/30/2007
7219531Apparatus and method for testing an impact and/or vibration absorbent material
A testing apparatus and method for determining the impact an/or vibration absorbent characteristics of an impact and/or vibration absorbent material. The apparatus includes a base having upwardly extending vertical guide rods. A sample plate is maintained in a posit...
05/22/2007
7107857Apparatus for an anvil system that provides enhanced self-resistive specimen heating when used in a dynamic thermo-mechanical material testing system
Apparatus for use in a conventional dynamic material testing system to advantageously provide uniform self-resistive specimen heating with enhanced temperature uniformity. Specifically, an anvil stack (300) in an anvil assembly (200) has a foil interfa...
09/19/2006
7083327Method and apparatus for detecting kissing unbond defects
A active thermographic method for detecting subsurface defects in a specimen, particularly kissing unbond defects, includes heating a specimen, applying a force to the surface of the specimen to shift and separate the walls of the defect, and obtaining thermographic...
08/01/2006
6978662Rheometer
A rheometer has an upper measuring part and a lower measuring part, between which a measuring chamber is formed for receiving a sample of a substance to be examined, wherein the two measuring parts can be moved relative to each other and, in particular, can be rotat...
12/27/2005
6896405Method of measuring thermal resistance of resin and a measuring apparatus using the method
A method of measuring a thermal resistance of laminated resin sandwiched by a first member and a second member according to the present invention includes measuring, as thermal resistance of resin, a sum of thermal resistance of an interface between the resin and th...
05/24/2005
6776520Method for determining a coefficient of thermal expansion and apparatus therefor
A method for determining the Coefficient of Thermal Expansion of a specimen. The specimen is placed in the tester and a tensile force is applied to the specimen. The specimen is equilibrated at a first temperature and then elongated. After reaching a desired elongat...
08/17/2004
6599010Thermo-mechanical analyzer
A slit for probe-changing is provided above an opening for changing a test piece on a side of a test piece tube for installing test pieces. Probes are then taken out and inserted via this slit. Probes can therefore be changed without taking out the test p...
07/29/2003
6568846Pulsed laser heating simulation of thermal damage on coated surface
An apparatus and method for evaluating thermal barrier coating material on a surface of a part or component that is subjected to transient heat/thermal cycles. A pulsed laser heating apparatus that preferably uses lenses and optical fiber focusing compone...
05/27/2003
6235543Method of evaluating a semiconductor wafer
In a method of evaluating a semiconductor wafer to provide an index as to whether slip generation is likely or not, the in-plane temperature distribution of the wafer is varied at a prescribed temperature and the condition of the temperature distribution ...
05/22/2001
6200022Method and apparatus for localized dynamic mechano-thermal analysis with scanning probe microscopy
A system and method for performing localized mechanothermal analysis with scanning probe microscopy ("MASM") is disclosed. In a preferred embodiment an image of the surface or subsurface of a sample is created. A localized region of the sample is selected...
03/13/2001
6164818Method and apparatus for measuring viscous heating of viscoelastic materials
Method and apparatus for measuring viscous heating/heat build-up of viscoelastic materials, such as rubber and polymer compounds. Temperature changes in the viscoelastic material are measured during application of a shearing force to the viscoelastic mate...
12/26/2000
6146013Differential thermal analysis system including dynamic mechanical analysis
A method and apparatus for performing combined single differential thermal analysis and dynamic mechanical analysis of a sample relative to a reference, using either one reference measurement for a sequence of material measurements--whereby the reference ...
11/14/2000
5992222High pressure pump system and method of operation thereof
A pump system for producing high and exactly controllable pressure levels includes a piston pump which has a piston (32) connecting to a spindle shaft (22), a spindle nut (44) on said spindle shaft, a cylinder block (34) having a bore (36) for receiving s...
11/30/1999
5993058Thermomechanical characterization system using a fast induction heating device
A system for thermomechanical characterization of material using an induction heating system capable of reaching a temperature of 3300° C. in not more than 20 seconds. This fast heating device comprises induction coils laid out at least partly around the...
11/30/1999
5520042Apparatus and method for the simultaneous measurement of rheological and thermal characteristics of materials and measuring cell therefor
Apparatus and method for the simultaneous measurement of rheological and thermal characteristics of a test specimen subjects the test specimen to stress for rheological measurements, while at the same time subjecting the same test specimen to controlled t...
05/28/1996
5302023Localized convection environmental chamber
A gas convection assembly is disclosed for maintaining a desired temperature gradient on a test portion of a test specimen. The assembly includes a housing having a chamber defined by bounding walls. The chamber is accessible through apertures in the hous...
04/12/1994
5133210Thermal expansion driven indentation stress-strain system
Disclosed is a method and apparatus of indentation testing of variable types of specimens which includes mounting an indenter member onto a thermally expandable member, mounting the specimen to be tested on a pedestal, loading the specimen with the indent...
07/28/1992
4955236Method for observation of vibration mode
Method for observation of vibration mode in which a substance inclusive of structures and materials to be observed in vibration mode is vibrated, heat generated by giving vibration is held at the vibrating parts, infrared emission energy emitted from the ...
09/11/1990
4926342High pressure rotor stress damage accumulating method
A method for accumulating stress damage induced by temperature differentials in a rotor of a high pressure steam turbine utilizes a representation of stress damage corresponding to a period of continuous temperature change. A counter variable associated w...
05/15/1990
4893944Non-destructive method of testing a weld obtained by pressure welding two metal parts
The invention provides a non-destructive method of testing a weld made by pressure welding two metal parts (2, 3) at forging temperature. After heating to a temperature of about 1100° C. and applying a forging pressure (F1) to form the weld, the method c...
01/16/1990
4878379Rheometer
A rheometer having relatively movable shearing elements (4,5) for imposing shear forces on a sample of material placed between such elements, is provided with heating means comprising an induction heating coil (18) heated to permit induction heating of th...
11/07/1989
4828400Stress analyzer with automatic overload response
An object stress analyzing system includes a scanning head with a detector, a variable gain amplifier and a control unit which controls the scanning head and which acquires stress-related data from the amplifiers. The control unit responds to detector ove...
05/09/1989
4711587Method of and apparatus for measuring the softening point of a vitreous specimen
A method of and an apparatus for measuring the softening point of a vitreous specimen in which the viscosity variation as a temperature function is determined by applying torsion to the specimen and measuring the transmitted torque as a function of temper...
12/08/1987
4674318Apparatus for the measurement of the resistance to shock
An apparatus for the measurement of the resistance of a test-piece to shock comprising an anvil, a mass positioned for movement along said axis and into contact with said test-piece positioned at said opening, and a movable thermal medium having a male pa...
06/23/1987
4618267Remote temperature-set-point controller
An instrument for carrying out mechanical strain tests on metallic samples with the addition of an electrical system for varying the temperature with strain, the instrument including opposing arms and associated equipment for holding a sample and varying ...
10/21/1986
4561784Device and method for frictionally testing materials for ignitability
Test apparatus for determining ignition characteristics of various metal in oxidizer environments simulating operating conditions for materials, the test apparatus has a chamber (6) through which the oxidizing agent flows, and means for mounting a station...
12/31/1985
4505147Humidity monitor and method
Methods and apparatus for determining water content of gases and vapors. The primary sensing device is a fluidic oscillator through which a sample of gas is passed. It is primarily useful in systems where the moisture content is large and there is a small...
03/19/1985
4427304Method for cryogenic proof testing of rotating parts
A method to test a rotating metal part at a cryogenic temperature as a comprehensive non-destructive inspection technique is disclosed. This method for proof testing a rotating metal part was arrived at for a material which has the characteristics of high...
01/24/1984
4405243Cryogenic impact testing method and machine
A cryogenic impact testing method of Charpy's and falling weight types which can test a test piece without substantially exposing the test piece with the atmospheric air under the same test piece cooling space, temperature controlling space and impact tes...
09/20/1983
4382699Laboratory method for testing the effectiveness of release agents for preventing coal from freezing to the sides of coal cars
A method of testing additives for the ability to prevent coal particles from freezing and adhering to the sides of coal cars and metal storage devices which comprises the steps of: (a) coating the treatment to be tested on the inside of a small interior d...
05/10/1983
4377800Datum sensor for measuring elongations
A data sensor comprises a carrier member consisting of metal and shaped as a hollow section (1) and subdivided into adhering sections (2 and 3) and a measuring section (5). The adhering sections carry annular discs (4) and the measuring section (5) has st...
03/22/1983
4367961Thermal measuring apparatus for elastomers
An apparatus for measuring the tear strength of an elastomer specimen having a housing which contains therein a specimen holder, a controllable heat source, a force applying assembly which includes a taut wire, means for measuring the amount of movement o...
01/11/1983
4354764Specimen testing apparatus
A specimen testing apparatus is disclosed, including a sensing device for engaging a specimen mounted on a support, an electrical measuring system associated with the sensing device for producing an electrical signal that is a function of a variation in a...
10/19/1982
4346754Heating and cooling system
A heating and cooling apparatus capable of cyclic heating and cooling of a test specimen undergoing fatigue testing. Cryogenic fluid is passed through a block 10 clamped to the specimen 11 to cool the block and the specimen. Heating cartridges 13 penetrat...
08/31/1982
4275600Testing rubber
Apparatus and method for testing unvulcanized rubber or rubber-like materials can work at high shear rates (e.g. 100 sec-1) as a result of applying and maintaining pressure on the test sample as it is being sheared by a rotor in a test chamber....
06/30/1981
4161114Method and apparatus for measuring adhesion of particulate materials
Apparatus and a method are disclosed for measuring adhesion of particulate materials. A geometric object, such as a steel ball, is immersed in a sample of particulate material which is compacted to a predetermined density. The temperature of the sample is...
07/17/1979
4019365Thermomechanical analyzer
A thermomechanical analyzer is adapted to measure stress or strain in a sample material by the use of a flat, passive spring, having a known modulus of elasticity, in conjunction with an axially displaceable shaft which mechanically links the spring and t...
04/26/1977
 
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