Celebrity Inventors
Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8096196 | Load cell A load cell includes a cylindrical ring with one end closed by a membrane configured to receive a load or force to be measured. A sensor carrier plate is arranged in a cavity formed by the ring and the membrane. The sensor carrier plate is coupled to the membrane to... | 01/17/2012 |
| 7404671 | Dynamic acoustic thermometer Acoustic temperature measurement at a remote location is provided. An acoustic source transmits acoustic radiation to an acoustic receiver along an acoustic path. The path passes through or near the remote location. The temperature is non-uniform along the path. A c... | 07/29/2008 |
| 7302856 | Strain sensors based on nanowire piezoresistor wires and arrays A highly sensitive and ultra-high density array of electromechanical nanowires is fabricated. Nanowires are extremely sensitive to the strain induced by the attachment of biological and chemical species. Real-time detection is realized through piezoresistive transdu... | 12/04/2007 |
| 7292951 | Systems for compensating for creep and hysteresis in a load cell A method of compensating for hysteresis in a load cell, by: (a) pre-calibrating a load cell by: measuring load cell deflection under progressively increasing loads; determining a first set of coefficients correlating the deflection of the load cell to the measured l... | 11/06/2007 |
| 7284439 | Method for producing a pressure sensor for detecting small pressure differences and low pressures A process for producing a plate for a capacitive sensor element. In one embodiment of the present invention, a method includes forming a plate from a substantially pure aluminum oxide slurry, heating the plate a first time in an oven to sinter the plate, cooling the... | 10/23/2007 |
| 7241956 | Weight measurement system for steel mill transfer cars A weighing system for a ladle transfer car is disclosed. For each wheel of the transfer car, a heat-resistant load cell designed to tolerate temperatures of at least 550 degrees Fahrenheit is mounted in axle block housings on each side of each wheel. Each load cell ... | 07/10/2007 |
| 7216554 | Physical quantity sensor having enhanced temperature compensation capability A physical quantity sensor according to the invention includes a first member, a second member, a sensing member, a temperature detector, a correcting circuit, and a heat conduction path thermally connecting the sensing member and the temperature detector. The sensi... | 05/15/2007 |
| 7215870 | Moisture protection for an electromechanical transducer A strain gauge with a strain-sensitive electrical resistor track and connector electrodes for contacting the resistor track arranged on a carrier substrate is provided with a protective coating having inorganic materials and covering at least part of the carrier sub... | 05/08/2007 |
| 7194922 | Modular force-measuring cell for a weighing scale, and weighing scale A modular force-measuring cell is disclosed which includes a force transducer equipped with sensors that measure changes occurring in the state of the force transducer as a result of a force or temperature. The force-measuring cell also includes a memory module for ... | 03/27/2007 |
| 7132953 | Spring sensor assembly for a vehicle seat cushion A sensor assembly for use in a vehicle seat cushion for detecting the presence of an occupant includes a first member defining an internal bore. A second member has a portion slidably disposed in the bore of the first member. The first member is movably mounted rela... | 11/07/2006 |
| 7100432 | Capacitive pressure sensor A capacitive pressure sensor comprises a pair of conductive plates surrounding a compressible dielectric to form a capacitor. Changes in pressure create changes in the capacitance of the capacitor which in turn may be measured to determine the changes in pressure. T... | 09/05/2006 |
| 7089810 | Torque applying tool with display window A torque applying tool includes a handle and a function end which includes two jaws. A first resistive strain gauge and a second resistive strain gauge are respectively connected to two respective insides of the two jaws. A third resistive strain gauge is connected ... | 08/15/2006 |
| 7055365 | Load sensor and seat weight measuring apparatus with a plurality of strain gauges A load sensor hardly causing error in weight measurement even when the environmental temperature of the load sensor varies, and a seat weight measuring apparatus using the load sensor. The sensor includes a plurality of strain gauges form a bridge circuit. The strai... | 06/06/2006 |
| 7024295 | Method and system for determining weight and position of a vehicle seat occupant A method and system for determining weight and/or position of a vehicle seat occupant to be used for controlling the reaction of a safety restraint system. A plurality of spaced weight sensors are disposed between a seating surface and seat mounting surface to provi... | 04/04/2006 |
| 7015706 | Semiconductor sensing device using different resistance types A semiconductor sensing device has a semiconductor substrate with a pressure sensing bridge circuit including piezo-resistance elements formed on the substrate. Further, the semiconductor sensing device has a temperature sensing bridge circuit including resistance e... | 03/21/2006 |
| 6973837 | Temperature compensated strain sensing apparatus A strain sensing apparatus for use in the presence of thermal gradients has a strain gauge and resistance temperature gauge in a planar assembly bonded to, deposited on or diffused or implanted in a substrate surface. The apparatus can sense strain and temperature i... | 12/13/2005 |
| 6957584 | Span and null shift temperature compensated thin film strain gauge bridge by series resistance A temperature compensated strain gauge assembly comprises a strain gauge (10) having two or more resistor or piezoresistors (Rb) in half bridge or full bridge configuration and one or more temperatures compensating resistors or piezoresistors (Rc) connected i... | 10/25/2005 |
| 6915711 | Method and means for measuring stress forces in refiners Methods and apparatus for measuring the stress forces in refining disks are disclosed. The method includes providing a measuring surface comprising at least a portion of a plurality of refiner bars on the refining surface of a refining disk, resiliently mounting the... | 07/12/2005 |
| 6700473 | Pressure transducer employing on-chip resistor compensation A dielectrically isolated temperature compensated pressure transducer including: a wafer including a deflectable diaphragm formed therein, the diaphragm being capable of deflecting in response to an applied pressure, and the diaphragm defining an active r... | 03/02/2004 |
| 5979243 | Microfabricated multifunction strain-temperature gauge The instant invention is for a microfabricated sensor system that can measure temperature, principle strain level, and its relative strain orientation simultaneously. It is a multifunctional, small size, low mass, and space saving gauge.... | 11/09/1999 |
| 5750904 | Force a displacement sensor with a capacitive transducer The force or extension sensor has a measuring capacitor (Mk) whose electrode structures (Es1, Es2), of comb-like design and interengaging, can be moved parallel to one another via two securing points (Bp1, Bp2) as a function of the force (F) to be measure... | 05/12/1998 |
| 5747707 | Measuring device for refiners Refining apparatus is disclosed including a pair of relatively rotatable refining disks including radial refining bars extending along at least part of the refining gap between those disks, and at least one of the refining bars comprising a sensor bar inc... | 05/05/1998 |
| 5623128 | Load cell with modular calibration components A digital load cell includes an EEPROM that is permanently attached to the counterforce along with a temperature sensor and a plurality of strain gages. The strain gages are mounted on the counterforce in the electrical configuration of a full wheatstone ... | 04/22/1997 |
| 5531128 | Capacitive transducer feedback-controlled by means of electrostatic force and method for controlling the profile of the transducing element in the transducer The invention is related to a capacitive transducer feedback-controlled by means of electrostatic force and a method for controlling said transducer. The transducer comprises a body part (8) supporting a dynamically moving transducing element sensitive to... | 07/02/1996 |
| 5515737 | Weighing apparatus To facilitate the adjustment of the accuracy and servicing maintenance of the electronic weighing apparatus, the weighing apparatus comprises a load cell and a signal processing circuit for processing a load signal from the load cell to provide a weight s... | 05/14/1996 |
| 5507171 | Electronic circuit for a transducer A transducer for generating an amplified signal in response to a stimulus. The transducer includes a sensing structure for sensing a stimulus and for generating a signal functionally related to the stimulus. An amplifier circuit, utilizing a single amplif... | 04/16/1996 |
| 5500509 | Microprocessor based universal digital pressure sensor A pressure sensing oscillator (12) and temperature sensing oscillator (14) each produce digital, oscillating signals having frequencies varying with respect to the pressure and temperature, respectively, sensed by each. The signals are input into a temper... | 03/19/1996 |
| 5461933 | Shear web load cell having thermal compensation A stainless steel load cell having a shear web design suitable for use in a continuous casting environment is disclosed. Strain gauges are disposed on both sides of each of the four webs to detect deformation, while a wheatstone bridge is provided, having... | 10/31/1995 |
| 5419199 | Semiconductor device having a stress transducer driven by a temperature compensating reference voltage source A general object of the present invention is to provide a semiconductor device having a stress transducer in which a temperature dependency of sensitivity of the stress transducer which utilizes a piezo resistance effect to transduce stress into an electr... | 05/30/1995 |
| 5379639 | Combined force transducer and temperature sensor A combined transducer that measures force or displacement and temperature utilizes a pair of vibrating tines to provide a simultaneous output representative of temperature and force or displacement whereby the sum or average of the vibrating frequencies o... | 01/10/1995 |
| 5339698 | Vibrating beam force transducer with automatic adjustment of its electromagnetic drive A vibrating beam force transducer is comprised of an oscillating sensing element having a frequency output indicative of the force applied to the sensing element. The sensing element has a variable electrical resistance which can vary in accordance with t... | 08/23/1994 |
| 5211060 | Bidirectional force sensor A force sensor monitors mutually orthogonal forces during a cutting process. A stationary cutting blade is configured to measure the shearing and perpendicular tearing forces directly during the cutting of web or sheet materials such as film. The blade is... | 05/18/1993 |
| 5197334 | Programmable compensation of bridge circuit thermal response The present invention provides compensation for temperature in a transducer by connecting the adjustment resistors to the transducer itself to provide a correct transducer output. A number of switches are used to couple the adjustment resistors to the tra... | 03/30/1993 |
| 5193393 | Pressure sensor circuit A pressure sensor circuit (10A) is disclosed which preferably utilizes a piezoresistive pressure transducer (11A) having a substantial temperature coefficient of resistance to provide an inherent temperature variation which is used to implement offset tem... | 03/16/1993 |
| 5187985 | Amplified pressure transducer A pressure transducer circuit is provided which includes a bridge arrangement of piezoresistors which are connected to a diaphragm that is sensitive to a pressure which is monitored. The output of the sensor bridge is provided to a preamplifier which is, ... | 02/23/1993 |
| 5184520 | Load sensor A load sensor is made of a load-sensitive element made preferably of an aluminum alloy, a bridge circuit with strain gauges made preferably of tantalum nitride and formed on the load-sensitive element, and two operational amplifiers with their non-inversi... | 02/09/1993 |
| 5129266 | Mechanical weigh beam and damping circuit therefor A load cell suitable for the measurement of discrete events having an output substantially free of resonant frequencies is disclosed. The load cell includes a visco-elastic polymer bonded thereto as well as accompanying control circuitry for maintaining t... | 07/14/1992 |
| 5048343 | Temperature-compensated strain-gauge amplifier A temperature compensated strain gauge amplifier derives compensating signals for offset and gauge errors of bridge transducers from a single temperature sensing element. The amplifier is inexpensive to construct, provides a high degree of voltage lineari... | 09/17/1991 |
| 5031463 | Load cell output correction circuitry Correction circuitry connectable in parallel with a conventional load cell output for compensating for various errors resulting from nonlinearity, creep, and temperature effects. Such circuitry includes an operational amplifier circuit employing the nonli... | 07/16/1991 |
| 4958526 | Force measuring device with zero adjustment A strain gage load cell is adjusted to zero output signal at no load or a fixed tare load on the load cell independent of the load cell temperature by shunting a pair of opposing arms of the strain gage bridge by equal resistors, and connecting a pair of ... | 09/25/1990 |
