Class 73/805 - Varied in response to specimen condition other than failure

Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein the load applied to the specimen
No. of patents: 40
Last issue date: 02/19/2008

Number	Title	Issue Date
7331212	Sensor module A sensor module is provided having a compact housing containing a sensor. A low temperature co-fired ceramic substrate is located on the housing. The sensor and signal processing circuitry are located on the low temperature co-fired ceramic substrate. The sensor mod...	02/19/2008
7191664	Testing of mechanical properties of materials Apparatus is disclosed for testing the mechanical properties of a material. The apparatus comprises a sample container (10) adapted to be filled with a sample of the material, and a housing (20) within which the sample container (10) is, in use,...	03/20/2007
7082838	Extraordinary piezoconductance in inhomogeneous semiconductors Extraordinary piezoconductance, or change in conductance with strain or pressure, is observed in a hybrid metal-semiconductor device formed from a semiconductor thin film and an adjacent metal shunt fabricated on a semi-insulating substrate. The device includes elec...	08/01/2006
7085625	Control system for baling machine A control system for a bulk material baler embodied in a machine readable data structure and including an instruction to a moveable guide track to move from a removed position to a closed position to create a guide track loop around a volume of bulk material to be b...	08/01/2006
7036364	Optical system and method for measuring continuously distributed strain A optical system and method of measuring a strain on a surface of a band of a sheet of a material. A single line, or an area having a boundary line, is marked on the band before deformation. The line traverses a width of the band at angle. The band is deformed and a...	05/02/2006
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
7017427	Testing apparatus and method for composite articles A testing apparatus for a composite material includes a base for holding the composite article, a load cell for placing a selected load on a portion of the composite article, and a displacement measuring device for measuring the amount of displacement for a selected...	03/28/2006
6975911	Operator input interface for baling machine An operator interface for a control system for a bulk material baler includes interface means such as a touch screen or keyboard for an operator to enter process parameters into a control system memory. A display shows process parameter fields into which an operator...	12/13/2005
6918304	Material testing method The present invention aims to achieve accurate measurement and evaluation of mechanical properties of an object to be measured 1 without use of a force sensor. A weight 3 is attached to the object to be measured 1 to form a mass-spring system in which the obj...	07/19/2005
6508896	Method and apparatus for calibrating and optimizing equipment for product fabrication By measuring the pressure distribution between fabricating equipment and a product formed in that equipment, and optionally the sequence in which the pressure is applied, the quality of product formation may be optimized. In an illustrated embodiment, pre...	01/21/2003
6386045	Dynamic viscoelasticity measuring system In bending type or shearing type dynamic viscoelasticity measurement, a static stress adjuster adjusts static stress to zero in order to effectively eliminate static stress caused by influences such as warp caused by thermal expansion of a specimen or res...	05/14/2002
6338275	Schottky-barrier semiconductor device A Schottky-barrier sensor has a semiconductor substrate having a pair of metal contacts formed thereon. The contacts form a Schottky barrier at each interface between metal and substrate, and the substrate is mounted on a surface. Strain, temperature and ...	01/15/2002
6303286	System and method for emulating an in vivo environment of a tissue specimen A system and method are provided for adaptively controlling a muscle tissue specimen in order to emulate its in vivo environment. The system includes at least one stimulator for stimulating the muscle tissue specimen based on an initial control signal, wh...	10/16/2001
6205863	Material testing machine having a control system for feedback-controlling the operation of a servo system A material testing machine includes a control system for feedback-controlling the operation of a servo system, including an actuator for applying a load to a test piece, during material testing. Prior to the material testing, the stiffness of the test pie...	03/27/2001
6114164	System and method for emulating an in vivo environment of a muscle tissue specimen A system and method are provided for adaptively controlling a muscle tissue specimen in order to emulate its in vivo environment. The system includes at least one stimulator for stimulating the muscle tissue specimen based on an initial control signal, wh...	09/05/2000
5952582	Test apparatus with control constant computing device A test apparatus is formed of an error area computing device, an upper limit value computing portion and a delay time computing portion. The error area computing device computes an error area corresponding to a difference between waves of a request signal...	09/14/1999
5753822	Method and device for determining the green tack of rubber blends A method and device for determining the green tack of rubber blends. To obtain reliable and reproducible measurement results it is proposed to use two specimens (40') of rubber blends, the green tack of which is to be determined. Each of the specimens (40...	05/19/1998
5724257	Foundry sand testing apparatus and system Foundry sand testing apparatus, method and system are provided for testing foundry sand. A computer foundry sand testing system includes at least one sensor for sensing predetermined characteristics of the foundry sand and for generating a signal. A proce...	03/03/1998
5616866	Method of finding stress distribution from temperature variation pattern on surface of elastic body Method of finding the distribution of stresses on and in an elastic body from data about the pattern of a temperature variation pattern on the surface of the elastic body caused by the thermoelastic effect and also from data obtained by numerical analysis...	04/01/1997
5539656	Crack monitoring apparatus An apparatus for monitoring the growth of surface cracks in materials includes a means for applying a load to a specimen to simulate actual use of the specimen, means for illuminating the specimen, means for capturing images of the specimen, and means for...	07/23/1996
5511431	Structure testing machine A structure testing machine for carrying out tests on a test structure (25) for an assessment of the response of the structure to test loads applied to the structure in the direction of a predetermined axis of the structure under the control of a monitore...	04/30/1996
5483837	Bale tie formed with marcelled portion, package comprising compressed bale and such tie, and related forming apparatus For tying a compressed bale tending to expand primarily along a major axis, a bale tie made preferably from steel wire or alternatively from steel strap is bent to form two marcelled portions, which are characterized by sinusoidal undulations, which are o...	01/16/1996
4858473	Miniature closed-loop dynamic universal mechanical testing machine Mechanical testing apparatus and methods are disclosed for providing closed-loop dynamic mechanical testing under small loads. The testing machine includes an electrically-driven actuator and light weight load transducer. The load transducer converts the ...	08/22/1989
4802367	Tensile test controller A tensile test controller has both load and stroke control circuits that are coupled together to permit tensile testing a specimen while controlling the load on the specimen, and when the specimen yields, for safely and smoothly switching to stroke contro...	02/07/1989
4572001	Method and apparatus for measuring thermodynamic response A method and apparatus for precisely controlling plastic strain rate during plastic deformation testing of a solid material such as a metal or plastic are described in which the effects of elastic strain rates associated with the specimens and machines us...	02/25/1986
4549269	Methods and apparatus for making prevailing torque nuts To impart prevailing torque to a nut, it is squeezed between two jaws. The moment that the nut contacts both jaws is determined by monitoring the relative acceleration of the jaws. The displacement of the jaws at this time gives the dimension across the f...	10/22/1985
4480482	Elastic limit detection and reset testing system The signal output of a pressure transducer, measuring the increasing tensile load above a minimum level on a test specimen, is differentiated to produce an analog slope signal compared with an adjusted sensitivity voltage to generate a reset signal when t...	11/06/1984
4354764	Specimen 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
4314482	Analog-digital control device An analog digital control device having both analog and digital memory with multiple, readily accessible, selectable access ports to allow the control device to be quickly programmed by unskilled personnel and thus render the device particularly useful fo...	02/09/1982
4235114	Material testing device A testing device for applying a force to a material test sample includes a test fixture for engaging the test sample and a solenoid, operatively coupled to the test fixture, for applying a predetermined force to the test sample in response to a solenoid c...	11/25/1980
4232554	Thermal emission flaw detection method A method of detecting very small structural flaws at loads below those which cause the flaws to propagate is disclosed. Certain phenomena and relationships of fracture mechanics are utilized in conjunction with the generation, detection and interpretation...	11/11/1980
4186610	Apparatus for evaluating deformation characteristics of mechanically tested materials The apparatus of the invention measures and evaluates deformation characteristics of mechanically deformed test pieces, which characteristics depend upon the structural and mechanical properties of the test piece. The apparatus includes a loading device f...	02/05/1980
4064745	Method of providing representation of aging of material Specimens are subjected to dislocation (tensile extension, compression, torsion) in discontinuous steps in which load and no-load conditions alter during work cycles, interspaced by recovery periods. The length of each work cycle is determined to be much ...	12/27/1977
4003246	Specimen crack stress intensity control loop for test device A test system for testing specimens to determine crack propagation utilizing a factor relating to stress intensity at the end of the crack as a control parameter for the loading means....	01/18/1977
3987669	Method of determining the relative fracturability of materials A method of determining the relative fracturability of two materials whereby samples of the materials are bonded together to form a composite sample and a force is applied to the composite sample to create and extend fractures therein. The rate of applica...	10/26/1976
3986391	Method and apparatus for the real-time monitoring of a continuous weld using stress-wave emission techniques Continuous welds are monitored by detecting and processing stress-wave signals emitted from the moving weld area to provide an indication of both the weld energy supplied to the weld area by the welding apparatus, and the development of microcracks in the...	10/19/1976
3983745	Test specimen crack correlator A testing apparatus for cyclically loading specimens of a known configuration to determine properties of materials from propagation or growth of a crack through the specimen including means to provide a direct output which is a function of crack length de...	10/05/1976
3965735	Device for measuring pressure between cylinders of a printing press A device for measuring pressure between two cylinders of a press which includes a first mirror fixed to the end of a journal of one of the cylinders in a position perpendicular to the cylinder axis and a relatively stationary second mirror spaced substant...	06/29/1976
3956927	Strain gauge transducer apparatus Strain gauge transducer apparatus including circuitry for balancing current through a pair of strain sensitive semiconductor resistors is disclosed. A current source supplies constant electric current to a voltage divider and a first strain sensitive resi...	05/18/1976
3948091	Apparatus for determining the properties of metallic materials The apparatus includes a machine for subjecting a test-piece of superplastic material to a tensile test using a mobile member entraining one end of the test-piece and exerting traction on the test-piece. The mobile member is subjected to successive displa...	04/06/1976

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Class 73/805 - Varied in response to specimen condition other than failure