Class 338/6 - Extensometer type

Subclass of Class 338 - Electrical resistors
Definition: Subject matter wherein the strain gauge includes structure,
No. of patents: 40
Last issue date: 03/06/2007

Number	Title	Issue Date
7186356	Analytical device A sensor for chemical species or biological species or radiation presenting to test fluid a polymer composition comprises polymer and conductive filler metal, alloy or reduced metal oxide and having a first level of electrical conductance when quiescent and being co...	03/06/2007
7065861	Method of producing a strain-sensitive resistor arrangement The invention relates to a strain-sensitive resistor, comprising a resistance layer arranged on a support element and an electromechanical transducer produced with this resistor. An increase in the electrical measured signal picked off across the resistor is ...	06/27/2006
6753756	Control device for wearable electronics In a garment 10, 12 incorporating an electronic device such as a radio 16, a variable of the device, such as volume, is varied by the use of two cords 22, 24, the electrical resistance of each cord decreasing in accordance with an increase in te...	06/22/2004
6614342	Strain gauge A high-performance strain gauge has a high gauge factor and a decreased temperature coefficient of resistance (TCR). The strain gauge has a laminated structure that includes a first layer formed of a positive TCR material and a second layer formed of a ne...	09/02/2003
6535102	Control device for wearable electronics In a garment 10, 12 incorporating an electronic device such as a radio 16, a variable of the device, such as volume, is varied by the use of two cords 22, 24, the electrical resistance of each cord decreasing in accordance with an increase in tension appl...	03/18/2003
6518872	High resolution scanning thermal probe and method of manufacturing thereof A resistant based thermal probe including a nanometer sized four-leg filament integrated with a piezoresistive AFM type cantilever is created by depositing the filament structure onto the cantilever by a chemical vapor deposition technique where the canti...	02/11/2003
6512445	Strain-sensitive resistor A strain-sensitive resistor including a resistance layer arranged on a support element and an electromechanical transducer produced with this transistor. The support element has a recess in its surface. When the support element is subjected to mechanical ...	01/28/2003
6486767	Rotary position sensor using a strain gage A rotary position sensor for sensing the position of an attached object. The sensor uses a strain gage to detect the position of the object. The sensor includes a housing and a helical shaped actuator located in the housing. The actuator is attachable to ...	11/26/2002
6392527	Impact detection system An acceleration change detection system, which in a preferred embodiment is used as an impact detection system, detects whether a deflection sensor is deflected. The magnitude and/or direction of the impact may be considered. The system may include one or...	05/21/2002
6369689	Linear position sensor using a strain gage A linear position sensor for sensing the position of an attached object. The linear position sensor uses a strain gage to detect the position of the object. The sensor includes a housing and a ramp shaped actuator located in the housing. The actuator is a...	04/09/2002
6362719	Rotary position sensor using a strain gage A rotary position sensor for sensing the position of an attached rotating object. The rotary position sensor uses a strain gage to detect the position of the object. The sensor includes a housing and a rotor located in the housing. The rotor is attachable...	03/26/2002
6236301	Cantilevered deflection sensing system A deflection sensing system for detecting deflection includes one or more deflection sensors between opposing sets of extensions. When one set of extensions is moved toward an opposing set of extensions, the deflection sensors are deflected. A preferred d...	05/22/2001
6184774	Semiconductor pressure detecting device with piezo resistance crossing grain boundaries The object of the present invention is to obtain high-precision semiconductor pressure detecting devices without unevenness in gauge resistance values. When a recrystal silicone film 23 is formed by use of laser, a crystal subgrain boundary 27 generates, ...	02/06/2001
5767840	Six-degrees-of-freedom movement sensor having strain gauge mechanical supports A user-manipulable sensor apparatus is provided for allowing a user to input, through hand manipulation of a movable member, motion in six degrees of freedom: translational motion in the X, Y, and Z axes, and rotation about each of those three axes. The a...	06/16/1998
5625333	Bend sensor horn switch assembly A horn switch assembly including an airbag module cover, a bend sensor and a backing plate. The module cover has a front outer face and a rear inner face deformably depressible from the front face. A plurality of parallel, spaced-apart, elongated force co...	04/29/1997
5606303	Flexible printed circuit sleep switch for electronic device A notebook computer or other electronic device has a flexible cable interconnecting electronic circuitry in a base with electronic circuitry in a cover. A flexible potentiometer is coupled to said flexible cable in a location which bends when said cover i...	02/25/1997
5336854	Electronic force sensing load cell A load cell device includes a load cell structure formed of a suitable metal and including vertically spaced apart, generally parallel horizontal elements integrally formed with longitudinally spaced apart, generally parallel vertical elements. Flexures i...	08/09/1994
5230392	Load weighing apparatus A weighing apparatus is put forward for weighing a load carried by a load support provided with front and rear wheel assemblies each having at least one member which deforms as a result of the load. The apparatus comprises a plurality of strain transducer...	07/27/1993
5190116	Deflection transducer for measuring vehicle loads and a system for mounting same A transducer which includes a central portion (12) having two longitudinally extending parallel rigid beam members (14,16) and two transverse parallel flexure members (30,32) which extend between the two rigid beam members (14,16) at right angles thereto....	03/02/1993
5099700	Extensometric sensor for measuring the stresses acting on a drilling element and a device for mounting such a sensor An extensometric sensor for measuring stresses acting on a drilling element at a bottom of a well, with the sensor including a first measurement zone formed from at least two traction blades, on which are mounted measurement gauges, connected at their end...	03/31/1992
5095756	Linear movement sensors High tensile electrically-conductive filaments 1 are connected to the two ends of an electrically-conductive elastic block 2 and the whole is embedded within an elastic covering 3. As the sensor is put under tension the elastic block stretches and the res...	03/17/1992
5079535	Strain gauge and method of making and using the same A strain gauge primarily designed for dynamic measurements and requiring very little force to produce a change in length. The strain gauge is alternately concave and convex in shape, such as a sinusoidal curve with nodes of low resistance on the convex po...	01/07/1992
5045827	Low-force transducer A low level strain gage transducer including housing which supports a strain member having a fixed end member and a free end member in the form of a cup, the free end member supported by a folded arm arrangement including one or more arms which permits th...	09/03/1991
5045829	Pressure sensor utilizing extension type conductive rubber A pressure sensor that utilizes an extension type conductive elastomer that will exhibit a decrease in its electrical resistance in response to an extension thereto. Like sheets of the conductive elastomer and an electrically insulative elastomer are over...	09/03/1991
4748433	Electro-conductive elastomeric devices An elastomeric electro-conductive device (10) capable of providing within a predetermined range of elastic elongation (λ) of the device (10) sensory signals representative of elastic elongation (λ) imposed on the device includes an elastomeric electro-c...	05/31/1988
4644785	Hinged strain cell mounting apparatus Apparatus for removably connecting a strain cell to a polished rod of a well pumping unit and for preventing the development of strain cell output signals due to bending of the polished rod. The strain cell is connected to a frame member which can be clam...	02/24/1987
4576179	Respiration and heart rate monitoring apparatus A respiration and heart rate monitoring apparatus includes a mechanical-electric apparatus for detecting chest movements and electrodes for detecting electric impulses associated with heartbeat. A highly sensitive detector includes a transducer crystal mo...	03/18/1986
4543837	Load cell temperature compensation system A load cell temperature compensation system (10) for accurately measuring a force load applied to an external member (18) during environmentally varying temperature values. The load cell temperature compensation system (10) includes a standard load cell (...	10/01/1985
4528542	Waterproof strain gage element system A strain gage element system includes a spring flexure member on which strain gages of convention design are mounted, and a heat shrinkable waterproof tube that is placed over the gage and the support and shrunk into place. The spring flexure member is fo...	07/09/1985
4522066	Temperature-compensated extensometer An extensometer having two spaced-apart mounting bases adapted to be mounted on a load-bearing structure with its axis of sensitivity intersecting the axis along which load-induced strains are generated at 45°. The extensometer includes a pair of paralle...	06/11/1985
4309686	Carbon strain gage This invention relates to improvements in weldable strain gages of the type comprising a strain-sensing filament mechanically coupled to a strain-deformable housing. In a preferred embodiment of the invention, the strain-sensing filament comprises a carbo...	01/05/1982
4148369	Vehicle weighing system transducer A transducer for measuring the load of a vehicle employing an equalizing beam suspension. In an equalizing beam suspension a pair of tandem wheels are supported by opposite ends of a pair of transversely spaced, center-mounted equalizing beams. Each equal...	04/10/1979
4064744	Strain sensorextensiometer A strain sensor or extensiometer with electrical output designed to measure relative displacements between two axially spaced points on a stressed structure comprising an elongated body with two end sections and a centrally located flexible beam extending...	12/27/1977
4058005	Improvements in or relating to strain transducers Strain measurement apparatus comprises a rigid support arranged to be secured against the surface of a structure. One or more resiliently deformable carrier elements provided with strain gauges mounted in said support are urged against the surface by the ...	11/15/1977
4047144	Transducer An electromechanical transducer is provided which employs a piezoresistive substrate support body of semiconductive material of which a first type N or P and a lineal resistor composed of material of a second type (P or N) formed on one surface thereof. T...	09/06/1977
4042049	Vehicle load measuring system A load measuring system for a tandem-wheeled vehicle. The tandem axles of the vehicle engage opposite ends of two transversely spaced equalizing beams having their midpoints pivotally supporting the vehicle. Deflections of the equalizing beams and front a...	08/16/1977
4038867	Transducer assembly and method of manufacturing same This invention relates to a transducer assembly for measuring loads in flexible sheet material, and to a method of making the transducer assembly. A strain gauged transducer plate is bonded between first and second sheets of flexible material, and a lead ...	08/02/1977
3995247	Transducers employing gap-bridging shim members A transducer or accelerometer employs at least one slot or gap located in a seismic mass of a block-like configuration. The relative displacement of the opposing faces of the block, due to the slot, is monitored by means of a shim or similar metallic memb...	11/30/1976
3971363	Myocardium wall thickness transducer and measuring method A myocardium wall thickness measuring transducer comprises a circular beam of high compliance and an elongated spike which extends in the plane in which the beam is disposed. The spike is connected at one point to the beam while a working end of the spike...	07/27/1976
3937075	Transducer comprising strain gauges A strain gauge or a bridge comprising four strain gauges is arranged on a support such that the strain gauge(s) is (are) situated in a neutral zone. The support is secured to the object to be measured on both ends, preferably by means of screws. Between t...	02/10/1976

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Class 338/6 - Extensometer type