Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 6553810 | Method for measuring chemical emissions A test device for measuring chemical emissions to the atmosphere from a leaking component that includes a housing containing an air mover for drawing ambient air directly into the housing. The air mover is capable of operating at a high flow rate and a lo... | 04/29/2003 |
| 6553811 | Trap apparatus A continuous processing trap apparatus is capable of increasing the trapping efficiency while maintaining conductance required by a vacuum chamber. The trap apparatus includes an exhaust passage for evacuating a hermetically sealed chamber by a vacuum pum... | 04/29/2003 |
| 6553812 | Combined oil quality and viscosity sensing system A combined oil quality and fuel contamination sensing system includes a capacitive dielectric sensor and pressure sensing arrangements for measuring the dielectric constant of the oil and the pressure of the oil, respectively, with the oil pressure being ... | 04/29/2003 |
| 6553813 | Moisture meter with impedance and relative humidity measurements A moisture meter (1) has a hand-held casing (2) with a digital microcontroller (50), LCD display (4), and a keypad (3). Spring-loaded contacts (6) contact material and allow capacitive impedance measurement via electrodes (5) and drive/pickup circuits (20... | 04/29/2003 |
| 6553814 | Method and device for determining the hardness/elasticity and/or other properties of vegetables or fruit The present invention comprises a method for determining the hardness of a vegetable or fruit, wherein the vegetable or fruit is rotated, wherein an impactor element is carried close to the surface of a fruit or vegetable, wherein during rotation of the f... | 04/29/2003 |
| 6553815 | Method and apparatus for permitting stable operation of a vehicle at an extremely low vehicle speed The method and apparatus according to the invention permits stable driving operation of a motor vehicle at an extremely low vehicle speed by means of an electronic control unit. The internal-combustion engine is automatically adjusted by the control unit ... | 04/29/2003 |
| 6553816 | System and method for providing engine diagnostic and prognostic information A system and method for obtaining engine diagnostic and prognostic information utilizing current, time and crank position data obtained from the starter motor during the starting of an engine and represented as a starter motor current waveform. The time d... | 04/29/2003 |
| 6553817 | Method and apparatus for monitoring a catalytic converter A monitor 10 is provided of the type which is deployed upon a vehicle 13 having an engine 17, an exhaust system 27 which includes a catalytic converter 12. Catalytic converter 12 is operatively and communicatively connected to inlet portion or pipe 14 and... | 04/29/2003 |
| 6553818 | Exhaust flow calibration apparatus and method A method and apparatus calibrates an exhaust gas measurement system for a motor vehicle. The method includes the steps of providing a flow of air to the exhaust gas measurement system having a known flow rate, measuring and storing a signal output from th... | 04/29/2003 |
| 6553819 | Device and method for determining the start of injection in a direct-injection internal combustion engine A device for determining a start of injection in a direct-injection internal combustion engine has a magnetoelastic pressure sensor disposed in an injection line leading to an injection valve which detects pressure changes in the injection line owing to a... | 04/29/2003 |
| 6553820 | Air pressure indicator for a vehicle tyre The present invention relates to a device which indicates the safety limits of the air pressure in each one of the pneumatic tires of a vehicle by transmitting appropriate information from the wheels to the driving control board. Transmission of informati... | 04/29/2003 |
| 6553822 | Liquid volume measurement A measuring apparatus for measuring the volume of a contained fluid includes an exposure chamber adapted for exposure to head volume of a volume of the contained fluid. A displacement mechanism is connected to the exposure chamber such that the displaceme... | 04/29/2003 |
| 6553823 | Model for wind tunnel test A model for a wind tunnel test fabricated at a low cost, in which a plurality of small bores opening on a surface of a wing and a plurality of passages permitting the small bores to communicate therewith. The plurality of small bores and the plurality of ... | 04/29/2003 |
| 6553824 | Method for determining pipetted volumes of liquid A method for determining a volume of liquid is described, wherein the liquid is drawn from a vessel by means of a pipette or is delivered from a pipette into a vessel, respectively. In particular a method is described, wherein as the first step the volume... | 04/29/2003 |
| 6553825 | Torque swivel and method of using same A torque swivel apparatus. The apparatus includes an upper body assembly secured to the lower end of a locking swivel of the type used in wireline operations. The upper body would engage into a lower body, the lower body secured to the drill string at the... | 04/29/2003 |
| 6553826 | Process and device for monitoring the quality of textile strips The invention relates to a process and a device for monitoring the quality of a strip (37, 44, 50) made of textile fibres which is moved in its longitudinal direction. In order to create a device and a process which allow flaws in a strip to be dealt with... | 04/29/2003 |
| 6553827 | Coolant safety method for welding apparatus In an automated welding machine, where a flow of liquid coolant is supplied to welding components on the machine from a source of coolant and then returned to the source of coolant, a safety system is provided that shuts down the flow of coolant in the ev... | 04/29/2003 |
| 6553828 | Cooled dual element thermocouple computer and flow velocity measurement method Embodiments of a flowmeter and velocity measurement method are described, which include preferably a dual element thermocouple that is immersed in a flowing fluid and a computer that processes, validates, and calculates data to arrive at a velocity measur... | 04/29/2003 |
| 6553829 | Air flow sensor having grooved sensor element Grooves into which an adhesive agent is poured are formed on the adhesion face of a sensor element, the adhesion face being adhered to a surface of a sensor-supporting member, which in turn can make the depth of a layer of the adhesive agent between the s... | 04/29/2003 |
| 6553830 | Fluid measuring device measuring fluid level in a container at high temperatures and/or high pressures and/or in a chemically aggressive environment using microwaves The invention concerns a microwave level measuring device for measuring of material levels in containers, suitable for operation at extreme container conditions, comprising high temperatures, high pressures, and/or chemically aggressive substances.... | 04/29/2003 |
| 6553831 | Spring-mounted wheel balancing weight A wheel balancing device mounts to a wheel containing a flange having generally opposing sides. The device comprises a pair of weighted bodies and a spring element connected to and interposed between the pair of weighted bodies. The device is mounted to t... | 04/29/2003 |
| 6553832 | Method for the determination for an actual speed of a movable displacement element Method for the determination for an actual speed of a movable displacement element wherein an acceleration sensor is used to record an acceleration (a), and a position sensor is used to record a measured position of a displacement element. A model speed (... | 04/29/2003 |
| 6553833 | Device for bias potential generation for an oscillating rotation speed sensor The invention relates to a device for generating bias voltages for the electrodes of a rotation rate sensor. By evaluating a rotation rate signal and a quadrature signal, control signals are generated, using an adaptive quadrature compensator, that are co... | 04/29/2003 |
| 6553834 | Double resonating beam force transducer with reduced longitudinal pumping A resonator beam structure that, during vibration of the tines, minimizes coupling of a longitudinal motion of the tines into a support structure to which the resonator beam is attached. The resonator beam includes a pair of tines; a first base region mec... | 04/29/2003 |
| 6553835 | Inertial rate sensor and method with improved clocking Inertial rate sensor and method in which a drive signal is applied to a rate sensing element, a pickup circuit is coupled to the rate sensing element for providing an output signal corresponding to movement of the rate sensing element, digital logic calib... | 04/29/2003 |
| 6553836 | Surface acoustic wave (SAW) accelerometer A monolithic low cost, high frequency surface acoustic wave (SAW) accelerometer is provided that is operable in high impact and vibration applications.... | 04/29/2003 |
| 6553837 | Process and apparatus device for analysis of roller bearings in machines The invention relates to a process for analysis of roller bearings (15) which have been installed in machines, by means of a sensor (10) a signal being recorded which is produced by the rolling motion, and the signal amplitude is evaluated in order to det... | 04/29/2003 |
| 6553838 | Detection of anomalies on railroad tracks The present invention relates to a method and apparatus for detecting anomalies, defects or electromagnetic properties of electrically conductive and magnetically permeable materials by using a magnet to partially saturate the material, thereby lowering i... | 04/29/2003 |
| 6553839 | Method for stimulating a sensor and measuring the sensor's output over a frequency range A method for stimulating a sensor and measuring it's output over a frequency ranges starting at a frequency f1 and ending at a frequency f2 is disclosed, which can include the following steps: (a) placing an assembled sensor on a shaker table; (b) setting... | 04/29/2003 |
| 6553840 | Linear displacement sensor apparatus A linear displacement sensor (10) has a capacitive transducer (24) having a flexible diaphragm (24c) disposed in a housing (12) which also slidingly mounts a plunger (18) movable toward and away from the diaphragm. The plunger has a spring seating end sli... | 04/29/2003 |
| 6553841 | Pressure transducer assembly A pressure transducer assembly includes a transducer member supporting a transducer element for measuring pressure within an environment. The transducer member has a sealing surface surrounding the transducer element. A housing having an integral resilien... | 04/29/2003 |
| 6553842 | Pressurization test adapter Disclosed is an apparatus and method of pressure testing an installed pipe by inserting a fitting into the internal threads found in saddle tee fittings. The internal threads of the fitting used by the cutting mechanism may allow a common apparatus to be ... | 04/29/2003 |
| 6553843 | Tool to be fitted onto a machine for traction testing of two elements which are glued to one another A tool to be fitted onto a machine for traction testing of two elements that are glued to one another at a gluing plane. The tool includes two assemblies, one of which includes a first part that is adjustably movable in a direction orthogonal to a tractio... | 04/29/2003 |
| 6553844 | Property-independent volumetric flowmeter and sonic velocimeter A single fluidic feedback oscillator incorporates two independent time event measurement means, resulting in a highly accurate volumetric flowmeter that is independent of the properties and composition of the flowing fluid. Under certain circumstances, wh... | 04/29/2003 |
| 6553845 | Coriolis flowmeter utilizing three-forked plate vibrator mode A highly sensitive Coriolis flowmeter, which is also utilizable as a density meter, is composed of: a substrate having two conduits through which a fluid to be measured flows; a curved tube fixed to the substrate in such manner that one end connects with one c... | 04/29/2003 |
| 6553846 | Device for determining deformations of motor vehicle components A device for detecting a side impact of a vehicle an acceleration sensor provided in components of the vehicle and controlling a release of a side bag for protecting vehicle occupants, and a sensor for sensing a beginning of a plastic deformation of compo... | 04/29/2003 |
| 6553847 | Collarless circularly magnetized torque transducer and method for measuring torque using the same A magnetoelastic torque sensor for providing an output signal indicative of the torque applied to a member, comprising, a first magnetoelstically active region in the member, the region being ferromagnetic, magnetostrictive magnetically polarized in a sin... | 04/29/2003 |
| 6553848 | Sampling devices A sampling device samples gas from a gas stream flowing through a tube to means utilizing the gas to detect the presence or otherwise of particulate contaminants. The device ensures that the sampled flow has at least as many particulate contaminants/unit ... | 04/29/2003 |
| 6553849 | Electrodynamic particle size analyzer An apparatus and method for determining the particle size distribution of a plurality of particles in a sample, the apparatus comprising a particle charging chamber for charging the particles in proportion to a dimension of the particle, such as surface a... | 04/29/2003 |
| 6553850 | Method and arrangement for transporting and inspecting semiconductor substrates The invention relates to an arrangement for transporting and inspecting semiconductor substrates (6), having at least three workstations (8, 10, 12), a changer (14), which has at least three arms (14a, 14b, 14c ) which are designed to load the individual ... | 04/29/2003 |
