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"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 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 |
| 7197920 | Test apparatus for accelerated wheel and suspension component structural durability A test apparatus for testing a wheel for a vehicle, including a wheel test spindle and a road simulation drum that is rotated by a motor is disclosed. The wheel test spindle may be supported on suspension components. The road simulation drum includes a chuck hole re... | 04/03/2007 |
| 6779382 | Process for determining changes in liquid media, in particular coating agents under shear stress A process for determining changes in a liquid medium, in particular a liquid coating agent or its components, caused by shear stress, in which a given volume of the medium is allowed to pass repeatedly through a shear unit under reproducible conditions. ... | 08/24/2004 |
| 6736015 | Robust, wireless microelectro mechanical system (MEMS) shear force sensor Micro electromechanical components in a novel configuration to allow wireless normal direction pressure transducers to be used for oblique or shear forces. The invention includes a novel cantilever beam configuration and algorithm, the readings of the MEMS sensors a... | 05/18/2004 |
| 6325566 | Load-sensing multi-axis connector A load-sensing, multi-axis connector is disclosed which comprises a series of complimentary leaf springs, which are connected by load cells through spherical bearings. These leaf springs resist the axial displacement of their attached load cells, but are ... | 12/04/2001 |
| 6003382 | Computer control shear cell tester A computer controlled shear cell (CCSC) tester for bulk solids, especially powders, that allows the determination of a Yield Locus curve from a single test procedure. The principle of the CCSC is that yield states can be maintained in a test cell over a r... | 12/21/1999 |
| 5963039 | Testing attachment reliability of devices An apparatus for testing the attachment reliability of a device mounted at least by an electrically conducting joint to a surface of a circuit board is provided. The apparatus includes an environmental chamber in which the board can be placed; an actuator... | 10/05/1999 |
| 5911164 | Compaction and pavement design testing machine and method for testing flexible pavement materials A combination kneader/compactor and plane-strain, simple shear testing apparatus for use in testing paving materials by subjecting them to anticipated design stress over a range of temperatures and various rates of shear. The sample is compacted to the ul... | 06/08/1999 |
| 5533398 | Method and apparatus for testing lead connections of electronic components To test the quality of solder bonded lead connections of a package by applying a shearing force to the leads using ultrasonic vibration and by measuring the resultant strain. A probe 32 is pressed against the surface of a lead 12 and vibrated by a piezoel... | 07/09/1996 |
| 5509298 | Apparatus and method for measuring visco-elastic characteristics of a sample Apparatus for measuring the fluid characteristics of a sample comprises a frame, at least a first stage mounted on the frame for rectilinear movement, first mounting means mounted on the first stage, and a first member carried by the mounting means, a sec... | 04/23/1996 |
| 5490427 | Six axis force sensor employing multiple shear strain gages A force sensor is disclosed in which strain is measured exclusively by shear strain gages mounted on L or T-shaped legs. Each such leg has at least two arms which are orthogonal to one another. That is, the arms of the L or T each have a lengthwise or lon... | 02/13/1996 |
| 5456119 | Sensing element for vehicle load measuring device A sensing element in a load measuring device includes two cylindrical holders, each having a hole along the central axis; and a plate-shaped member provided between the two cylindrical holders, the plate-shaped member having protrusions at both ends, a co... | 10/10/1995 |
| 5257088 | Apparatus and method for nondestructive inspection of a vehicle This invention tests a vehicle, such as an aircraft, using nondestructive interferometry. An interferometer detects movements in the vehicle surface due to stress. One applies such stress by pressurizing the vehicle. In one embodiment, a hood housing the ... | 10/26/1993 |
| 5245876 | Dual beam complex modulus apparatus System and method for measuring complex shear or Young's modulus of a polymeric material are described wherein first and second beams of preselected lengths and different thicknesses are disposed in parallel spaced relationship firmly held at first ends t... | 09/21/1993 |
| 4930346 | Method for the determination of the properties of mouldable materials, particularly for the determination of the plastic and reologic properties thereof A method for the determination of the properties of mouldable materials, such as the granular and pulverous masses of fresh concrete, and stiff liquids, particularly for the determination of the plastic and reologic properties thereof. A sample of a known... | 06/05/1990 |
| 4667519 | Rheometer rhelogical/viscoelastic measuring apparatus and technique Apparatus and a method for generating data for measuring rheological/viscoelastic properties of curing rubber samples. A stressing mechanism having a variable displacement including a maximum displacement causes variable stress in a curing rubber sample. ... | 05/26/1987 |
| 4546438 | Rheometer and process of curing and testing rubber A rheometer and process of curing and testing rubber samples precisely controls each cure and test. The maximum resistance, or more specifically, maximum torque at peak stress, is predicted for each sample automatically as curing progresses. Each cure and... | 10/08/1985 |
| 4149407 | Apparatus and method for cyclic simple shear testing of soil samples Method and apparatus for testing soil samples in which two similar samples of soil to be cyclic simple shear tested are positioned on opposite sides of a loading plate and subjected to a load normal to the plate. Simultaneously, the plate is moved transve... | 04/17/1979 |
| 4095461 | Rheological test method and apparatus Rheological property measurement employing eccentric rotating disc apparatus wherein measurements of viscous and elastic force data are made at multiple displacements of the disc axes to cancel errors.... | 06/20/1978 |
| 4059983 | Process for the determination of the visco-elastic characteristics of polymers and arrangement to carry out the process A process for the determination of the visco-elastic characteristics of polymers which includes stimulating a rolling pendulum which is supported on a flat horizontal surface of a polymer sample, to free, attenuated rolling oscillations at different tempe... | 11/29/1977 |
| 3982427 | Apparatus for working and testing solid elastomers A means and method or process are described in which a sample of solid curable elastomeric material, such as raw or compounded vulcanizable rubber or equivalent, is worked or shear stressed between dies which hold its opposite faces firmly while one of th... | 09/28/1976 |
