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| Number | Title | Issue Date |
| 7409869 | Resistance test method A method for evaluating thermal fatigue resistance for a welding consumable alloy can include the following steps: placing a test specimen of a welding consumable alloy in a testing device such that a tensile load and a compressive load can be introduced to the test... | 08/12/2008 |
| 7204153 | Apparatus and a method for testing attachment features of components An apparatus (10) for testing attachment features (26,28,30,32) of components (12,14) comprises a first member (16) having a first end (18), a second end (20), a first edge (22) and a second edge (24). The firs... | 04/17/2007 |
| 7204152 | Apparatus and method for fatigue testing A method of simulating life of a rotor blade mounting feature mounted in a complementary rotor disc mounting feature comprises the steps of providing two specimen mounting features (37) each having portions defining pressure faces matching in profile respecti... | 04/17/2007 |
| 7146855 | Checking and measuring system for human body A checking and measuring system includes a checking and measuring mechanism, and a strength measuring element; the checking and measuring mechanism includes a rail, a moving rod positioned within the rail, a rotating power source connected to the moving rod, a slidi... | 12/12/2006 |
| 7143915 | Process to fracture connecting rods and the like with resonance-fatigue A process to fracture connecting rods and the like, that are made of high strength materials, comprises of the following mechanisms: (a) Fatigue: fluctuation of stresses in a pre-notched connecting rod due to the use of harmonic excitation will extend t... | 12/05/2006 |
| 7047819 | Testing of samples Test apparatus comprising means for holding a sample to be tested, means for altering the strain in the sample, an optical arrangement for monitoring the sample to be tested, and processing means for processing the signals resulting from the monitoring of the sample... | 05/23/2006 |
| 7021155 | Universal material testing method and device therefor A load increasing in a stepped manner from an initial load is applied to a test piece (4) of material in order to examine mechanical properties of the material by applied load, but the load having a next step load added thereto is applied to the test piece af... | 04/04/2006 |
| 6935187 | Test method for assessing thermal mechanical fatigue performance of a test material A test method for testing the thermal mechanical fatigue performance of a test material includes preparing a test specimen of the test material, wherein the test specimen has a base, and a rib extending outwardly from the base. The test specimen is thermally cycled ... | 08/30/2005 |
| 6023980 | High-cycle fatigue test machine A test machine (10, 40, 60) for inducing high-cycle fatigue (at kilohertz vibration rates) in a specimen of a material under test. Each test machine (10, 40, 60) provides both dynamic and static loading. One embodiment is an SEM-compatible machine (10), h... | 02/15/2000 |
| 5677494 | Method for high strain-rate testing of specimens A mechanical impact test is performed using an incremental mechanical loading apparatus having a loading head movable in a first direction and in a second direction opposite to the first direction, and a stationary cross piece. A starter specimen is mount... | 10/14/1997 |
| 5641912 | Method for remote application of variable load and/or displacement to specimens, components, or systems A method and apparatus for applying a force, displacement, or both to specimens, components, or systems by using a remote variable load/deflection device. The method enables testing of materials under actual in-service conditions. A displaceable container... | 06/24/1997 |
| 5193395 | Method and apparatus for determination of material residual stress A device for the determination of residual stress in a material sample consisting of a sensor coil, adjacent the material sample, whose resistance varies according to the amount of stress within the material sample, a mechanical push-pull machine for impa... | 03/16/1993 |
| 5085074 | Test device for determining adhesive strength of lacquer on a tube The device includes a base plate with a recessed seating for the shoulder of a tube with a threaded neck and a compressing mechanism engaging the open end of the tube body, the compressing mechanism being mounted axially with respect to the tube. The comp... | 02/04/1992 |
| 4089211 | Elastomeric bearing test machine Apparatus and method for testing elastomeric bearings used for mounting articulated rotor blades on the main rotor head of a helicopter wherein the blade is held stationary and the rotor hub is moved to subject the bearing to simulated flight loads and mo... | 05/16/1978 |
| 4056974 | Method and hydraulic testing apparatus for performing resonance tests Materials, or structural components are tested under resonance conditions by means of a pressure operated load mechanism controlled by a servo-hydraulic control unit. The pressure medium is part of the oscillating system. The spring rate or stiffness of t... | 11/08/1977 |
| 4009606 | Device for the study of materials subjected to alternate tensile and compressive tests A device for subjecting n (n ࣙ 1) test specimens to alternate tensile and compressive stresses comprises an excitation source having a horizontal axis of displacement and a guide rod which is capable of free translational displacement along a horizontal... | 03/01/1977 |
