Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 8051697 | Self calibration devices for chemical and bio analytical trace detection systems The present invention relates to chemical and bioanalytical sensors and sensor systems, particularly to systems incorporating a calibration device for sensors where the calibration device is comprised of an array of micromachined MEMS structures and materials for tr... | 11/08/2011 |
| 7980114 | Electronic balance An electronic balance is provided, in which a tolerance resulting from temperature variation is variable and a frequency for sensitivity calibration corresponds to the tolerance. A load detecting portion 1 detects a load of an object to be weighed 12, ... | 07/19/2011 |
| 7950264 | Disposable measurement arrangement and method of testing and/or calibrating it A measurement arrangement comprising a flexible disposable container and a disposable measurement probe for measuring an analytical property of a medium. The measurement probe is mounted on an inside wall of the disposable container and comprises a sensing element e... | 05/31/2011 |
| 7934411 | Gas or heat detector, gas or heat generator, smoke gas generator, and method for the testing of a gas detector or a heat detector and method for the testing of a smoke gas detector Inspecting gas detectors is difficult if the gas detectors are arranged in a place which is difficult to access. The provision of a test device which is in an operational connection with the gas detector or the heat detector facilitates the testing considerably.... | 05/03/2011 |
| 7895878 | Breath test simulator and method A breath test simulator for supplying a breath test analyzer with a vapor including ethyl alcohol includes a heated thermal mass to heat an inlet passage. ... | 03/01/2011 |
| 7845206 | System, apparatus and method for dispensing chemical vapor This invention relates to a system for testing the operation of a detection instrument, and a method involving same. ... | 12/07/2010 |
| 7661290 | Gas sensor test and calibration system A system for testing and calibrating gas sensors with gas stored in a strip of packets. The strip may be fed into a chamber having a defined volume of air. A packet may be punctured with a mechanism to release one or more gases into the volume of air to result in an... | 02/16/2010 |
| 7530255 | Devices, systems and methods for testing of gas detectors A testing module for use with a gas detector, includes a plurality of gas inlets and outlets, each outlet being in fluid connection with one of the inlets. Each of the outlets is adapted to mate with and form a fluid connection with one of the inlets of a second lik... | 05/12/2009 |
| 7493793 | Breath test simulator A breath simulator for supplying a breath test analyzer with a sample effluent of ethyl alcohol that controls headspace and adjacent effluent passageway temperature. ... | 02/24/2009 |
| 7484399 | System, apparatus and method for dispensing chemical vapor This invention relates to a system for testing the operation of a detection instrument, which comprises a first enclosure having at least two ports and containing a fluid comprising a substance detectable in gas form by the instrument, said fluid being present in pa... | 02/03/2009 |
| 7454945 | Mercury monitoring system and calibration A calibration assembly generates elemental mercury and oxidized mercury for calibrating components of a mercury monitoring system, including making necessary adjustments to efficiencies of a mercury compound converter and an elemental mercury detector. The calibrato... | 11/25/2008 |
| 7404311 | Breath test simulator A breath simulator for supplying a breath test analyzer with a sample effluent of ethyl alcohol that controls headspace and adjacent effluent passageway temperature. ... | 07/29/2008 |
| 7393450 | System for maintaining pH and sanitizing agent levels of water in a water feature A system automatically maintains at least one of a pH level and a sanitizing agent level of water in a water feature. The system includes a sensor assembly responsive to at least one of a pH level of the water and a sanitizing agent level of the water. The system fu... | 07/01/2008 |
| 7390346 | System and apparatus for producing primary standard gas mixtures Provided is a novel system and apparatus for producing primary standard gas mixtures. The system includes providing a gas permeation device having a constant diffusion rate into a temperature controlled enclosure; connecting a supply source of a component to the per... | 06/24/2008 |
| 7359804 | System and method for calibrating remote emissions sensing instruments A system and method is provided for obtaining calibration curves for CO and CO2 during laboratory calibration of one or more remote emissions sensing (RES) instruments, and for self-calibration of on-road RES instruments to compensate for changes in backg... | 04/15/2008 |
| 7338802 | Method of performing calibration and quality control of a sensor and apparatus for performing the method A method of performing calibration and quality control of a sensor for determining a parameter in a test fluid in which method a calibration and quality control cycle is repeated. A cycle includes the steps of performing a calibration and a quality control of the se... | 03/04/2008 |
| 7325560 | In-situ gas blending and dilution system for delivery of dilute gas at a predetermined concentration Apparatus and method for delivery of dilute active fluid, e.g., to a downstream active fluid-consuming process unit of a semiconductor manufacturing plant. The delivery system includes an active fluid source, a diluent fluid source, a fluid flow metering device for ... | 02/05/2008 |
| 7299710 | Hand-held trace vapor/particle sampling system A sampling system that contains filter components for collecting and concentrating vapor and particles in high-volume flows. The sample is then vaporized and delivered to a detector at a low-volume flow. The invention also has a sampling probe that contains an air-j... | 11/27/2007 |
| 7290433 | Method and device for checking a sensor In an industrial installation equipped with a sensor, a method is provided for checking the sensor and providing a measurement sequence associated with the sensor. Monitoring occurs for a thermodynamic parameter of a monitored fluid circulating in the industrial ins... | 11/06/2007 |
| 7285420 | System and method for self-referencing a sensor in a micron-sized deep flow chamber A system and method are described herein for self-referencing a sensor that is used to detect a biomolecular binding event and/or kinetics which occur in a sample solution flowing along side a reference solution in a micron-sized deep flow channel. ... | 10/23/2007 |
| 7281404 | Apparatus and method for testing gas detection instruments An apparatus for providing a test gas to a gas monitoring instrument having a window for admitting gas to a gas sensor therein, is formed from a mechanical adaptor open at a portion thereof and having walls constructed and arranged such that the mechanical adaptor r... | 10/16/2007 |
| 7275411 | Apparatus and method for testing gas detection instruments An apparatus for providing a test gas to a gas monitoring instrument having a window for admitting gas to a gas sensor therein, is formed from a mechanical adaptor open at a portion thereof and having walls adapted to the gas monitoring instrument such that the mech... | 10/02/2007 |
| 7269991 | Permeation calibrator An apparatus, method, and system for ensuring a more accurate and precise calibration of gas or liquid analyzers using gas emitting permeation tubes for the production of calibration samples. The permeation devices are placed in a temperature-controlled housing to e... | 09/18/2007 |
| 7260981 | Method for leak testing and leak testing apparatus For leak testing closed containers (9) which are filled with a filling product containing at least one liquid component the container is introduced in a test cavity (1) which is evacuated at least down to vapor pressure of that liquid component. The pr... | 08/28/2007 |
| 7257990 | Accelerated ultralow moisture permeation measurement By measuring ultralow moisture permeation through a barrier material sample at a temperature substantially above ambient, definitive values are produced on an accelerated basis that can be used to accurately predict long term daily performance of that barrier materi... | 08/21/2007 |
| 7250138 | Method and system for detecting and recording submicron sized particles A system and method for detecting the presence of submicron sized particles in a sample taken from the environment includes a collecting a sample from the environment and purifying and concentrating the submicron particles in a sample based on the size of the partic... | 07/31/2007 |
| 7229485 | Plasma reduction processing of materials In a process for the reduction of a metalliferous ore or concentrate the ore or concentrate is first prepared into a particulate form. A reaction chamber (3, 103, 203, 301, 401, 503, 603, 702) is then charged with ore or concentrate, a reductant and an input ... | 06/12/2007 |
| 7225643 | Recirculation bubbler for glass melter apparatus A gas bubbler device provides enhanced recirculation of molten glass within a glass melter apparatus. The bubbler device includes a tube member disposed within a pool of molten glass contained in the melter. The tube member includes a lower opening through which the... | 06/05/2007 |
| 7220383 | Method and instrument for automated analysis of fluid-based processing systems An analytical apparatus to monitor fluid systems has at least one extraction module having a raw-sample reservoir connected by input fluid conduit to individual ones of said fluid systems, to extract raw samples for analysis from said fluid systems, one or more modi... | 05/22/2007 |
| 7216544 | Ultrasonic inspection reference standard for composite Materials An ultrasonic inspection reference standard for composite materials includes a prism that is manufactured from a polymer resin. The ultrasonic inspection reference standard may be a rectangular prism and may be a polymer resin step-wedge reference standard that has ... | 05/15/2007 |
| 7213440 | Calibration and validation for a leak detector A leak test arrangement having a leak calibration device is disclosed. The calibration device is connected into communication with the leak test arrangement and provides a controlled source (sink) of fluid at a predetermined amount. The calibration includes a substa... | 05/08/2007 |
| 7212734 | Portable carbon monoxide generation apparatus for testing CO sensors, detectors and alarms An apparatus for generating carbon monoxide comprising an enclosure (6) having an inlet and an outlet at least one of which is provided with means (8) restricting air flow from the inlet to the outlet, a container (1) located within the enclosur... | 05/01/2007 |
| 7210994 | Vacuum bag with a valve adapted to hold fluids A viscera bag includes a closure and a valve connection. The bag is flexible and a vacuum line can be connected thereto. The vacuum line can withdraw fluids from the bag and the bag can be vacuum sealed to ensure that fluids will not leak out of the bag. A method of... | 05/01/2007 |
| 7209837 | Systems and methods for determining compensated conductivities The disclosed systems and methods determine compensation factors, compensated conductivities, concentrations, and other related parameters of a solution based on the solution's temperature and absolute conductivity. ... | 04/24/2007 |
| 7204122 | Systems and methods for calibrating osmolarity measuring devices An osmolarity measuring system comprising microscale electrode arrays is configured to account for variations and defects in the arrays using a tiered approach comprising several calibration methods. One method accounts for the intrinsic conductivity of the electrod... | 04/17/2007 |
| 7174766 | Calibration device for carbon dioxide sensor A self-calibrating carbon dioxide sensor that includes a carbon dioxide detector and a carbon dioxide gas generator. In some embodiments, the carbon dioxide gas generator includes a heating element and a carbon dioxide gas releasing solid material in thermal communi... | 02/13/2007 |
| 7168287 | Reference leakage device for leak sniffer detector A reference leakage device for a leak sniffer detector that is equipped with a sniffing tip and a control unit. The reference leakage device includes a gas reservoir and a constriction wherefrom there is released a specific amount of test gas, at least during calibr... | 01/30/2007 |
| 7167098 | Testing equipment for a fire alarm The present invention relates to testing equipment 20 for a fire alarm 1. It includes a testing pole (21), a range spacer (23) connected to the testing pole (21), and a reflective means and/or scattering means situated in the insid... | 01/23/2007 |
| 7152458 | Nano-crystalline and/or metastable metal hydrides as hydrogen source for sensor calibration and self-testing Sensor systems and methods are disclosed herein. In general, a sensor can be provided for detecting the presence of a gas (e.g., hydrogen) in an area proximate to the sensor component. A composite material is generally associated with the sensor, wherein the composi... | 12/26/2006 |
| 7141156 | One-point recalibration method for reducing error in concentration measurements for an electrolytic solution The present invention relates to a method for mathematically re-calibrating and adjusting an initial concentration analysis model that suffers from electrochemical measurement errors caused by surface state changes in the working/counter/reference electrode after ex... | 11/28/2006 |
