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| Number | Title | Issue Date |
| 6668620 | Test for hydraulic leakage A test for hydraulic leakage in hydraulic components uses a rate testing device having two circuits including a filling circuit that fast-fills the component with hydraulic fluid and a leakage circuit that measures the leakage rate of fluid flow through t... | 12/30/2003 |
| 6668621 | Viscosity measurement by means of damped resonant vibration normal to an approximate rigid plate A brief but intense magnetic impulse generated by a coil 42 is used to excite resonant bending mode vibration in a magnetically permeable cantilevered beam 2 immersed in a fluid 22. A permanent magnet 36 and a magnetically permeable circuit 44, 38, 40, 56... | 12/30/2003 |
| 6668622 | Rheometer for rapidly measuring small quantity samples The present invention relates to a miniature rheometer, a parallel rheometer, and improved force sensor elements which may advantageously be used in combination with the miniature rheometer and the parallel rheometer. The miniature rheometer is adapted to... | 12/30/2003 |
| 6668623 | Method and apparatus for analyzing organic macromolecular component and application thereof A method and apparatus for efficiently analyzing an organic macromolecular component contained in a sample with high precision are provided. The method and apparatus for analyzing the organic macromolecular component are based on a flow analysis method wi... | 12/30/2003 |
| 6668624 | Method and apparatus for analyzing organic macromolecular component and application thereof A method and an apparatus for efficiently analyzing an organic macromolecular component contained in a sample with high precision are provided. The method and the apparatus for analyzing the organic macromolecular component are based on a flow analysis me... | 12/30/2003 |
| 6668625 | Measurement of the level of settled particles within a fluid vessel A system and method of measuring a level of settled particles in a fluid-containing vessel includes the steps of fluidizing particles from a position below the settled level of particles, and measuring a static pressure of liquid within the vessel at a po... | 12/30/2003 |
| 6668626 | System and a method for measuring and determining flatness A system and a method for measuring and determining flatness of a strip (1) of rolled material. Said system is comprising a measuring roll (2) having a cylindrical central structure (41) having a number of measuring devices for force/pressure registration... | 12/30/2003 |
| 6668627 | Sensor apparatus with magnetically deflected cantilever A magnetically excited, resonant cantilever sensor apparatus has a cantilever as the transducer element. A static magnetic field is directed in the plane of the cantilever(s) cooperating with a current loop in/on the latter. Orienting the magnetic field a... | 12/30/2003 |
| 6668628 | Scanning probe system with spring probe Scanning probe systems, which include scanning probe microscopes (SPMs), atomic force microscope (AFMs), or profilometers, are disclosed that use cantilevered spring (e.g., stressy metal) probes formed on transparent substrates. When released, a free end ... | 12/30/2003 |
| 6668629 | Methods and apparatus for web-enabled engine-generator systems A controller for controlling and monitoring the operation of an engine-generator is disclosed. The controller includes a central processing unit, a power supply, an input/output system, a communication system, an annunciation system and mode control switc... | 12/30/2003 |
| 6668630 | Device for monitoring the combustion process in internal combustion engines A device is proposed for monitoring the combustion process in internal combustion engines, a direct monitoring and a monitoring of individual combustion processes, in particular individual combustion chambers, being possible. This is achieved using a wave... | 12/30/2003 |
| 6668631 | Method of checking the performance of catalysts in internal-combustion engines A process is suggested for checking the catalyst performance in internal-combustion engines, in which by means of detected operating parameters of the internal-combustion engine similar operating conditions are determined. It is suggested to compute from ... | 12/30/2003 |
| 6668632 | Spark apparatus with pressure signal response amplification An ignition coil, spark plug, and pressure sensor for an internal combustion engine are, in a preferred embodiment, integrated into a single assembly and mounted directly on a plug hole of an internal combustion engine. A hard spark plug shell serves as a... | 12/30/2003 |
| 6668633 | Electronic fuel injector tester An electronic fuel injector tester which permits fuel injectors to be tested when a car is at idle is disclosed. The fuel injector tester is in the form of a probe and detects the impact or vibration which occurs when the pintle within a fuel injector ope... | 12/30/2003 |
| 6668634 | Method and device for estimating an admission pressure in a motor vehicle brake system A method for estimating an admission pressure prevailing between a main brake cylinder and an intake valve of a wheel brake cylinder of a motor vehicle brake system, with the admission pressure being estimated, taking into account a run-on voltage of a cl... | 12/30/2003 |
| 6668635 | Method of improving steering performance robustness utilizing dimensional non-uniformity in tire/wheel Methods for improving vehicle steering performance and robustness of that performance include control of non-uniformities in the vehicle's tires, wheels and tire/wheel assemblies as a way to overcome the tendency of the steering systems in certain vehicle... | 12/30/2003 |
| 6668636 | System and method for tire pressure monitoring including tire location recognition In a system for remote monitoring of vehicle tire pressure, a system and method for identifying tire location. A tire pressure monitor for each tire includes a sensor for sensing tire pressure, a transmitter for transmitting a signal representative of the... | 12/30/2003 |
| 6668637 | Tire air pressure estimating apparatus Tire air pressure during high speed travel is estimated without a sensor for detecting the tire air pressure directly. An apparatus is constituted by a wheel speed sensor, road surface friction state estimator for estimating a friction state estimation va... | 12/30/2003 |
| 6668638 | Active vortex control with moveable jet In a method of controlling vortex breakdown on an aerodynamic surface, a vortex generated by the aerodynamic surface is continually monitored to identify a non-linear region where vortex breakdown occurs. A fluid jet is blown into the non-linear region to... | 12/30/2003 |
| 6668639 | Plunger assembly having a preset spring force pre-load A uniformly preset spring force pre-load among a number of identical solenoid actuated valve assemblies (28) by uniquely adjusting the spring pocket length (L) of each respective plunger (12) to accommodate a respective spring (20) which is uniquely mated... | 12/30/2003 |
| 6668640 | Dual-channel electronic multi-function probes and methods for realizing dissimilar and independent air data outputs A system for providing independent and dissimilar aircraft parameter estimations includes first and second dual-channel electronic multi-function probes (MFPs) positionable adjacent an aircraft skin. Each dual-channel electronic MFP has pressure sensing p... | 12/30/2003 |
| 6668641 | Apparatus and method for thermal dissipation in a thermal mass flow sensor A thermal mass flow controller includes a sensor assembly, a valve assembly, and a mass flow controller housing. A thermally conductive element conducts heat from the valve assembly away from the sensor assembly, thereby reducing uncontrolled contribution... | 12/30/2003 |
| 6668642 | Apparatus and method for thermal isolation of thermal mass flow sensor A thermal mass flow controller includes a sensor assembly and mass flow controller housing. A thermal ground limits the conductive thermal path between the mass flow controller housing and the sensor assembly and, due to the limited cross-section of the t... | 12/30/2003 |
| 6668643 | Optical flow-meter device A optical flow-meter device comprises an outer tubular body provided with an inlet pipe fitting and an outlet pipe fitting for a fluid, and a tubular element made of transparent plastic material, which sealingly extends inside the body between the inlet a... | 12/30/2003 |
| 6668644 | Adjustable meter loop assembly An adjustable meter loop assembly for connecting a gas meter to a gas supply line and a gas service line which includes a gas inlet conduit, a gas outlet conduit, and an adjustable brace. The gas inlet conduit is connectable to a gas inlet of the gas mete... | 12/30/2003 |
| 6668645 | Optical fuel level sensor An optical fuel level sensor for providing an electronic signal representative of the fuel level within a fuel tank, generally comprising a waveguide body, a photo source, and a photo receiver. The waveguide body can either be of a dual-tapered or single-... | 12/30/2003 |
| 6668646 | Gravity meter A gravity meter comprises a casing, a vacuum tube mounted in the casing in a vibration-free manner, a sensor mechanism mounted within the vacuum tube, the sensor mechanism comprising two masses of different size acting on the respective arms of a beam bal... | 12/30/2003 |
| 6668647 | Methods and apparatus for sealing and analyzing material samples including uncompacted bituminous samples according to water displacement testing methods Water-resistant preformed resilient bags are applied to a porous material specimen having a coarse external surface to provide for more consistent measurement results in water displacement tests. The preformed bag is configured to collapse and substantial... | 12/30/2003 |
| 6668648 | Acceleration detection type gyro device An acceleration-detecting type gyro apparatus of an electrostatic supporting type, in which displacements of a gyro rotor are actively made zero is proposed. The acceleration-detecting type gyro apparatus includes: a gyro case; a gyro rotor which is suppo... | 12/30/2003 |
| 6668649 | Vibrator for a vibrating gyroscope, vibrating gyroscope using the vibrator, and electronic apparatus using the vibrating gyroscope In order to provide a vibrating gyroscope in which variations in the angular-velocity detection sensitivity are not likely to occur even when sharp temperature changes occur, a vibrator for a vibrating gyroscope includes, on one main surface, a first dete... | 12/30/2003 |
| 6668650 | Vibration testing apparatus and method using acoustical waves A vibration testing system using acoustical waves having a testing unit including a main enclosure defining a main acoustical cavity and having a baffle provided with a main opening which is aligned with a set of acoustical insulation bands receiving an a... | 12/30/2003 |
| 6668651 | Method for contactless measuring of vibrations of a rotating body Stationary sensors are used to measure periodically the vibratory motions of portions of a body spinning in front of them, such as blades, and to try to determine their natural frequencies by spectral analyses. The sensors are collected together in severa... | 12/30/2003 |
| 6668652 | Nano-substance mass measurement method and apparatus A method for measuring the mass of nano-substances including the steps of gripping a nano-substance with a nanotweezer gripping portion made of a plurality of nanotubes, resonating the nanotweezer gripping portion in this gripping state, measuring a resul... | 12/30/2003 |
| 6668653 | Method and apparatus for measuring LSAW propagation characteristics The temperature distribution in water is measured by two thermocouples to obtain a temperature compensating parameter. Under measurement conditions where the temperature distribution in water varies, a measured V(z) curve is used to monitor a change in th... | 12/30/2003 |
| 6668654 | Method and apparatus for generating specific frequency response for ultrasound testing A system and method for testing a physical attribute of a manufactured object that includes a laser generator and pulse generator that generate a plurality of Dirac-like pulses. The pulses, directed at an object, cause a sonic signal to be initiated indic... | 12/30/2003 |
| 6668655 | Acoustic monitoring of foreign objects in combustion turbines during operation A foreign object impact sensor for use with combustion turbines utilizes a passive acoustic waveguide within the turbine to receive acoustic signals from foreign object impact. The magnitude of these signals is displayed and or stored using a lighted disp... | 12/30/2003 |
| 6668656 | Optical sensor having differing diameters A fiber Bragg grating based sensor is disclosed. The sensor comprises an optical waveguide having a core and a cladding. The core comprises a pressure sensor such as a fiber Bragg grating. In one embodiment, a support is affixed around the cladding which ... | 12/30/2003 |
| 6668657 | Pressure sensor A pressure sensor for a motor vehicle includes a sensor housing and a base. A pressure bore through the base leads to a pressure space delimited on one side by the base and on the opposite side by a diaphragm connected sealingly to the base. An actuating ... | 12/30/2003 |
| 6668658 | Pressure sensor module A pressure sensor module for measuring a differential pressure has a sensor chip for measuring a differential pressures and a module housing with at least two lead lines that are disconnected from one another by the sensor chip and in which lines differen... | 12/30/2003 |
| 6668659 | Load detecting device In a load detecting device, a hermetically sealed sensor chamber is constituted by a sensor head, a bellows, a housing and a stem. A sensor chip for detecting pressure is housed in the sensor chamber that is filled up with liquid. When load is applied to ... | 12/30/2003 |
