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| Number | Title | Issue Date |
| 7357045 | Buoyancy-corrected gravimetric analysis system Relatively accurate gravimetric analysis of airborne particulate matter in a sample is achieved by making gravimetric measurements of the sample on a microbalance in a closed chamber, continuously electronically monitoring air pressure, humidity and temperature in t... | 04/15/2008 |
| 7285736 | Oscillating Inertial Microbalance and Method of Passive Compensation The claimed subject matter is directed to a continuous passive temperature, pressure, modulus of elasticity, and force compensated oscillating inertial microbalance and method of using the same. Temperature and/or pressure and/or modulus of elasticity compensation a... | 10/23/2007 |
| 7271353 | Scale which indicates a relative force applied between two attachment points The present invention provides airline travelers with a method of determining baggage weight compliance while traveling, prior to having baggage rejected or additional fees assessed at the baggage check counter at the airport. In a first aspect, a scale is disclosed... | 09/18/2007 |
| 7209074 | Temperature compensation improvements in radar apparatus A radar-based distance measurement apparatus comprises a microwave circuit comprising a frequency generator which produces a microwave frequency signal, the frequency of which is modulated by an amount determined by a modulation signal applied to the frequency gener... | 04/24/2007 |
| 7202423 | Apparatus for weighing out the remaining quantity of a substance in a storage vessel Apparatus for weighing out the remaining quantity of a substance in a storage vessel disposed in a cabinet and attached with rigid connecting lines to a valve plate fastened in the cabinet and from which rigid connecting lines lead to a consumer. The apparatus inclu... | 04/10/2007 |
| 7191638 | Device for determining and/or monitoring at least one physical parameter and having a piezo-drive for oscillation-excitation and -detection A device for determining and/or monitoring at least one physical parameter of a medium, having at least one mechanically oscillatable unit and at least one drive-/receive unit. The drive-/receive unit excites the oscillatable unit to oscillate, or, it receives the o... | 03/20/2007 |
| 7180015 | Scale with clampable protrusion for weighing bicycles and other sports-related items A scale for weighing objects in general and specifically bicycles is described. One embodiment of the scale comprises a body, a hook for suspending the item to be weighed, and an appendage extending from the body. The appendage is adapted to be firmly secured in a t... | 02/20/2007 |
| 7161096 | Mass measurement system and method using inertial force and standard mass in gravity-free environment The mass measurement system includes a linear acceleration motion unit that is a linear motion driving source, a first load cell fastened to the linear acceleration motion unit to measure an inertial force of a sample caused by linearly accelerated motion of the 10 ... | 01/09/2007 |
| 7122750 | Dual display weight measuring apparatus A mechanical weighing scale having mechanical parts driving a pointer rotating around a fixed disc or dial having slots or holes formed therein. The mechanical pointer operates to provide an analog display of one's weight to the user. An optical sensor system is res... | 10/17/2006 |
| 7120611 | Integrated electronic scale, and a system and method which uses the scale automatically to compute postal/carrier rates An electronic scale integrally formed within the housing of a piece of office equipment increases a user's work space in a home or business environment. The piece of equipment may be a personal computer or one of its peripheral devices. A mailing system automaticall... | 10/10/2006 |
| 7098409 | Apparatus for weighing materials online An apparatus for weighing materials online is disclosed, which belongs to an art of online weighing of material. The apparatus comprises: a light-emitting unit, emitting light beams irradiating on the surface of materials transported on a belt to form a bright proje... | 08/29/2006 |
| 7091427 | Apparatus using resonance of a cavity to determine mass of a load A scale is provided, the scale including a cavity having a resonant frequency which is alterable with variations in mass of a load applied to the cavity. The scale also typically includes a comparator operatively coupled with the cavity to detect actual resonant fre... | 08/15/2006 |
| 7084357 | Luggage device with built-in load determination A luggage device includes: (a) a main housing, the main housing having a top, a bottom, and walls, and having an opening area for insertion of one or more items into the main housing, with closure means; (b) load determination component connected to the main housing... | 08/01/2006 |
| 7053319 | Electronic weighing apparatus utilizing surface acoustic waves using sensors operating at different frequencies, having temperature compensation, and a push oscillator A weighing apparatus includes a SAW oscillator and a “push oscillator” to force the SAW oscillator into a desired mode of operation. A SAW temperature oscillator and a thermistor are also provided. The frequency of the “push oscillator” is made immune to tem... | 05/30/2006 |
| 7051600 | Triaxial tension compression, shear testing apparatus A triaxial testing system of material properties having top and bottom joint assemblies that rotate about and move along a longitudinal axis in response to forces imparted by a testing machine. The joint assemblies are connected together by horizontal and vertical l... | 05/30/2006 |
| 6963036 | Accurate, high speed weighing apparatus and method The static or dynamic weighing apparatus for weighing an object or item, comprising a weighing assembly that includes a base with four (4) load cells attached to it, two (2) active load cells and two (2) passive load cells. Each active load cell has a mounting side ... | 11/08/2005 |
| 6957565 | Method and apparatus for characterizing materials by using a mechanical resonator A method for measuring properties of a fluid that includes oscillating a tuning fork resonator in a fluid. The invention is particularly suitable for in-line monitoring of various physical and electrical properties of fluids flowing in a conduit. ... | 10/25/2005 |
| 6949710 | Mail weighing system and scale apparatus An apparatus and method to individually weigh continuously fed mail pieces wherein each mail piece is configured in a vertical orientation and fed through the weighing system in seriatim. The apparatus contains a scale transport assembly for transporting mail pieces... | 09/27/2005 |
| 6943304 | Fish protecting covers for fish weighing device jaws For an electronic fish scale including a molded housing having upper and lower portions for supported hand grasping and a pair of opposed C-shaped jaws which open when a jaw actuator is manually moved upwardly to receive a lower lip of a fish securely held and unhur... | 09/13/2005 |
| 6931949 | Apparatus for measuring the weight of small items The invention provides an apparatus for measuring the mass and calculating the weight of individual objects to be held thereby, comprising forceps having a proximal portion and a distal portion, the proximal portion being adapted to grasp and hold a selected object,... | 08/23/2005 |
| 6928877 | High throughput microbalance and methods of using same A method and apparatus for measurement of mass of small sample sizes. The method and apparatus is particularly adapted for providing microbalance measurement of solid materials as part of a combinatorial research program. The method and apparatus contemplate monitor... | 08/16/2005 |
| 6922035 | Force-applying input device A force-applying input device has a controller which calculates a torque component of an actuator drive signal corresponding to a current position by multiplying the sum of the current position and the product of a current speed and a coefficient by an elastic modul... | 07/26/2005 |
| 6903280 | Vehicle seat In order to develop a vehicle seat with a seat frame for the mounting of a sitting area and with a supporting frame, which keeps the seat frame at a predetermined distance from the vehicle floor and connects the vehicle seat to the vehicle floor, in such a way that ... | 06/07/2005 |
| 6888073 | Vibration absorbing system of micro gravity rotating apparatus A substance mass measuring system is applied to a microgravitational rotating apparatus vibration control system to easily measure the mass of an object placed in an experimental box. Recess portions (10a, 10b) are provided in a casing ( | 05/03/2005 |
| 6812413 | Electronic weighing apparatus utilizing surface acoustic waves A weighing apparatus includes a base (12) supporting a cantilevered elastic member (14) bearing a load platform (16). The interior of the elastic member (14) is hollowed and is provided with first (20) and second (22) piezoe... | 11/02/2004 |
| 6784381 | Method of manufacturing a microbalance 22A temperature and/or pressure compensated microbalance is disclosed. Temperature compensation is achieved by applying heat to at least a part of the microbalance, measuring a temperature-dependent variable, and controlling the amount of heat applied to the ... | 08/31/2004 |
| 6762370 | Vibrating tray scale having a clamping device that allows for detection of loose matter in a mail piece A vibrating tray scale capable of detecting small amounts of loose particulate matter contained within a mail piece is disclosed. The scale is provided with a clamping device having a plurality of clamping positions. Utilizing different clamping positions, the mass ... | 07/13/2004 |
| 6756548 | Apparatus and method for measuring mass in a microgravity environment An apparatus and method of measuring the mass of a test specimen located in a microgravity environment. The test specimen is attached to the free end of a cantilevered spring for joint vibration. The natural frequency of vibration of the spring and specimen are meas... | 06/29/2004 |
| 6706977 | Self-monitoring controller for quartz crystal microbalance sensors A controller for a quartz crystal microbalance (QCM) sensor system and method for detecting mass deposition on a QCM sensor. The controller controls a QCM using temperature-, voltage- and current-regulating circuits, a microcontroller, an oscillator, heating and coo... | 03/16/2004 |
| 6692567 | Seismic weigh-in-motion system A seismic weigh-in-motion system (12) which utilizes a seismic sensor (32) mounted, off-pavement of the highway prior to the point at which the truck (10) enters the deceleration lane at the truck weighing station. The sensor (32) senses seismic vibration... | 02/17/2004 |
| 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 |
| 6492601 | Self-monitoring controller for quartz crystal Microbalance sensors A controller for a quartz crystal microbalance (QCM) sensor system and method for detecting mass deposition on a QCM sensor. The controller controls a QCM using temperature-, voltage- and current-regulating circuits, a microcontroller, an oscillator, heat... | 12/10/2002 |
| 6465749 | Magnetostrictive mass sensing apparatus and method An apparatus and method for weighing particulates in a gas stream has a generally cylindrical tube manufactured from a magnetostrictive material. One end of the tube is anchored to a mounting block, while the other end includes a filter. The gas stream pa... | 10/15/2002 |
| 6448513 | Electronic weighing apparatus utilizing surface acoustic waves A weighing apparatus includes a SAW oscillator and a "push oscillator" to force the SAW oscillator into a desired mode of operation. A SAW temperature oscillator and a thermistor are also provided. The frequency of the "push oscillator" is made immune to ... | 09/10/2002 |
| 6444927 | Microbalance with reduced temperature and / or pressure sensitivity 22A temperature and/or pressure compensated microbalance is disclosed. Temperature compensation is achieved by applying heat to at least a part of the microbalance, measuring a temperature-dependent variable, and controlling the amount of heat applied to ... | 09/03/2002 |
| 6326563 | Mass sensor and mass sensing method A mass sensor includes a diaphragm, a sensing plate having a piezoelectric element arranged on at least a part of at least one surface joining respective sides, a connecting plate sandwiched by the diaphragm and the sensing plate, wherein the diaphragm, t... | 12/04/2001 |
| 6313415 | Pulse width modulated weighing platform An electronic scale uses an analog signal from a load cell which is converted directly to a pulse width modulated output signal. This pulse width modulated output signal represents the weight of an object on the scale and is sufficient to be directly read... | 11/06/2001 |
| 6211473 | Electronic weighing apparatus utilizing surface acoustic waves A weighing apparatus includes a base supporting a cantilevered elastic member bearing a load platform. The interior of the elastic member is hollowed and is provided with first and second piezoelectric transducers mounted on respective opposed posts. The ... | 04/03/2001 |
| 6080939 | Mass determination device having counterbalanced normalized temperature coefficients A mass determination device includes a combination of an elastic element connected with a mass holder. The combination has a normalized temperature coefficient of frequency substantially equal to zero over a temperature range of intended use for the mass ... | 06/27/2000 |
| 5946795 | Method of manufacturing a micromechanical oscillating mass balance A micromechanical oscillating mass balance and method adapted for measuring minute quantities of material deposited at a selected location, such as during a vapor deposition process. The invention comprises a vibratory composite beam which includes a diel... | 09/07/1999 |
