Thomas Edison obtained a patent for an electrographic vote recorder.
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| Number | Title | Issue Date |
| 8109133 | Method and device for measuring liquid absorption The invention concerns a method and a device for measuring the ability of a material to absorb a liquid, whereby a liquid is brought into contact with a surface of a test specimen (P) of the material, and wherein the amount of liquid that has been absorbed in the te... | 02/07/2012 |
| 8091409 | Percolation testing apparatus and methods A storm water run-off percolation rate test system includes a turbid water generator having a silt or sediment source providing silt into a mixing tank. A pipeline carries turbid water from the mixing tank to a test pit or test site. A flow meter measures the amount... | 01/10/2012 |
| 8056401 | In-line moisture-content measurement of ceramic materials in ceramic article manufacturing In-line systems for and methods of measuring the moisture content of ceramic material within an extrusion system used to form ceramic articles are disclosed. One method includes arranging, relative to the extrusion system, at least one radio-frequency (RF) sensor sy... | 11/15/2011 |
| 7827855 | Method and kit for adsorbent performance evaluation The present invention generally relates to methods and kits for measuring and analyzing degradation of adsorbent materials, particularly for adsorbent materials used in gas separation processes. The present invention can assess the damage to adsorbent due to contami... | 11/09/2010 |
| 7827854 | Method and kit for adsorbent performance evaluation The present invention generally relates to methods and kits for measuring and analyzing degradation of adsorbent materials, particularly for adsorbent materials used in gas separation processes. The present invention can assess the damage to adsorbent due to moistur... | 11/09/2010 |
| 7788970 | Wireless sensor probe A wireless sensor probe for use in environmental monitoring and control includes a separable probe body and sensor mast. The probe body includes a void configured to house the sensor mast including one or more sensor devices for sensing a soil property surrounding t... | 09/07/2010 |
| 7735355 | Gravimetric moisture measurement instrument A measuring instrument for gravimetric moisture determination of a sample has a radiator, a weighing cell, and a sample receiver which can be connected to the weighing cell. The sample receiver allows the sample to be placed on or removed from the sample receiver. T... | 06/15/2010 |
| 7673501 | Moisture detection A method of retro-fitting a moisture detection fitting in the wall of a building in accordance with the following steps: forming a space which proceeds into the wall; and inserting the moisture detection fitting into the space such that a probe of the fitting: 1) pr... | 03/09/2010 |
| 7661296 | Method and device for determination of moisture content and solid state phase of solids using moisture sorption gravimetry and near infrared or Raman spectroscopy A method and apparatus for measuring isotherms and determining solid state phase changes comprising a humidity generator having a temperature controlled internal chamber, a microbalance mounted externally to the internal chamber and a near infrared spectroscopy (NIR... | 02/16/2010 |
| 7658096 | Humidity sensing apparatus An apparatus (10) for sensing a condition, such as humidity, through an opening (20) in a surface (12) such as a duct or wall. A housing (14) includes an outer section (16) mounted on the surface and a probe section (18) ext... | 02/09/2010 |
| 7658095 | Water detection arrangement An electronic device having an enclosure is disclosed. The electronic device includes a hole disposed at least partially through the enclosure. The electronic device also includes a detector configured to provide at least one visual indication after being immersed i... | 02/09/2010 |
| 7640792 | Percolation testing apparatus and methods A storm water run-off percolation rate test system includes a turbid water generator having a silt or sediment source providing silt into a mixing tank. A pipeline carries turbid water from the mixing tank to a test pit or test site. A flow meter measures the amount... | 01/05/2010 |
| 7631545 | Jet-action plunger-based tensiometer apparatus The present invention is embodied in a tensiometer apparatus and process that employs novel techniques for performing the required routine service operation of refilling a sealable measurement chamber of the apparatus with liquid from a reservoir using a novel, pist... | 12/15/2009 |
| 7591169 | Measuring instrument for gravimetric moisture determination A measuring instrument for gravimetric moisture determination of a sample includes a radiator, a weighing cell, and a sample receiver which can be connected to the weighing cell. The sample receiver is configured to allow the sample to be placed on or removed from t... | 09/22/2009 |
| 7584652 | Methods of rapidly simulating in-service warp distortion of a wood product and/or rapidly estimating shrinkage properties using electromagnetic energy Methods are provided for rapidly simulating “in-service” warp distortion of a wood product. Methods are also provided for rapidly estimating shrinkage properties of a wood product by using electromagnetic energy to dry and redistribute absorbed water in the wood... | 09/08/2009 |
| 7571637 | Design structure for an on-chip real-time moisture sensor for and method of detecting moisture ingress in an integrated circuit chip A design structure for an on-chip real-time moisture detection circuitry for monitoring ingress of moisture into an integrated circuit chip during the operational lifetime of the chip. The moisture detection circuitry includes one or more moisture-sensing units and ... | 08/11/2009 |
| 7552624 | Method and structures for detecting moisture in electroluminescence display devices A method for detecting moisture in a display device having at least one display element includes incorporating at least one moisture detector in a predetermined location of the display device, the moisture detector including a material layer comprising metal formed ... | 06/30/2009 |
| 7516651 | Method and apparatus to determine moisture content in solid insulation Disclosed herein is a method that relates to determining water content of a solid insulation at a specific location within a transformer. The method comprising, determining a temperature of the solid insulation at a specific location, calculating a relative moisture... | 04/14/2009 |
| 7448258 | High throughput screening for moisture barrier characteristics of materials A method of developing a new coating having a desired performance characteristic with regard to a property of a coating is provided. The method includes the steps of: a) providing an array of coating wells, each well configured for receiving a coating material havin... | 11/11/2008 |
| 7441443 | Drying balance A drying balance (1) including a pan (3) that rests on a weighing system (2) as well as a heat source (5) for heating and drying a sample (4) on the pan. A sensor (11) measures the absorption coefficient, transmission coeffi... | 10/28/2008 |
| 7437957 | Porous medium tensiometer A porous medium tensiometer has a filling mechanism which allows to fill a fluid chamber and simultaneously withdraw gas contained in the fluid chamber. A self-priming tensiometer includes a porous material tip having a first section surrounded by a fluid-impermeabl... | 10/21/2008 |
| 7424821 | Characterization of porous media Porous filter media and methods for characterizing, selecting and using such media based on their dynamic wettability are disclosed. The dynamic wettability of a medium is a measure of how quickly a given liquid is absorbed by the medium. ... | 09/16/2008 |
| 7421887 | Moisture detection and control using sensor feedback A method for moisture detection and removal is provided. The method involves providing discrete feedback as an indication of current moisture accumulation on a surface of a perforated plane, wherein the plane includes at least one moisture sensor, integrated within ... | 09/09/2008 |
| 7407625 | Volume-differential water assay system using hydrophilic gel Systems and methods for measuring the moisture and sediment content of a petroleum sample. In one embodiment, a sample to be tested is collected in a field bottle. The sample from the field bottle is then transferred from the field bottle, and into and through a mea... | 08/05/2008 |
| 7401501 | Method and apparatus for determining liquid absorption of aggregate A method of determining liquid absorption of an aggregate comprises providing a shaker apparatus, a vacuum source and a container; placing a sample of the aggregate in the container; adding liquid to the container sufficient to reach a calibration mark on the contai... | 07/22/2008 |
| 7373805 | Apparatus for directing particles in a fluid There is disclosed apparatus for directing particles entrained in a fluid, comprising a chamber having a first wall, including means for generating a sound wave having a frequency v, and a second, opposite wall capable of reflecting the sound wave in which the first... | 05/20/2008 |
| 7370531 | Detection circuits, detection method and systems of measuring physical quantities A detection circuit 30 has a unit 30a for inputting a signal to be detected by synchronized wave detection, a unit 30b for inputting a standard signal for the signal to be detected and a unit 30c for inputting an offs... | 05/13/2008 |
| 7373259 | Method and apparatus for performing chemical reactions in a plurality of samples A method and apparatus for simultaneously performing chemical reactions and determining molecular transport dynamics on a plurality of samples such as thin film samples. The apparatus of the present invention is capable of containing multiple samples in individual s... | 05/13/2008 |
| 7368923 | Time interval trimmed differential capacitance sensor An apparatus and method for operation of a differential capacitance transducer, including generating substantially opposing polarity excitation drive signals by operation of a pair of drive signal generators, applying the excitation drive signals to a pair of sense ... | 05/06/2008 |
| 7369942 | Vehicle traveling state determining apparatus The present invention provides a vehicle traveling state determining apparatus including a camera which picks up an image of a road surface in a direction in which a vehicle is traveling, and zigzag state detecting section for determining a zigzag amount on the basi... | 05/06/2008 |
| 7356943 | Automatic hair dryer An automatic Hair dryer including a hand held body, a comb attached to the body, a 120/240 V.A.C. heating element and a fan adapted to move a mass of air across the heating element and through or across the comb and into an individual's hair. A moisture sensor is di... | 04/15/2008 |
| 7354768 | Volume-differential assay using hydrophilic gel Systems and methods for measuring the moisture and sediment content of a petroleum sample. In one embodiment, a sample to be tested is collected in a field bottle. The sample from the field bottle is then transferred from the field bottle, and into and through a mea... | 04/08/2008 |
| 7345491 | Clothes dryer moisture sensing circuit A moisture sensing circuit for a clothes dryer in which clothes tumble during drying has a pair of spaced apart electrode sensors for sensing the electrical resistance of the clothes when the clothes contact the electrodes. The circuit has an active filter for suppr... | 03/18/2008 |
| 7337580 | Weight change indicating apparatus An apparatus for use under an object utilizes a weighing mechanism and an adjustable indicating system for monitoring weight change. The apparatus may be particularly adapted for monitoring soil moisture level in a pot holding houseplants. The apparatus provides a g... | 03/04/2008 |
| 7334938 | Mold and fungus growth warning apparatus and method An apparatus for monitoring environmental conditions favorable for mold, mildew and fungus growth includes a microprocessor having a data map, a temperature sensor attached to the microprocessor, a relative humidity sensor attached to the microprocessor, an indicato... | 02/26/2008 |
| 7335337 | Ergonomic pipette tip and adapters An ergonomically designed pipette tip that can be securely mounted to a barrel of a pipetter yet is designed to substantially reduce the axial force necessary to install and eject the pipette tip from the pipetter. The ergonomic pipette tip includes molded-in expans... | 02/26/2008 |
| 7330034 | Moisture measurement system for seed cotton or lint A process for measuring the moisture content and the mass-moisture content of materials is presented that requires no air reference or calibration sequence. A microwave signal is split into a reference and a transmission signal, and the reference signal is applied d... | 02/12/2008 |
| 7325444 | Methods and systems for determining moisture transfer characteristics of welding materials Systems and methods are presented for determining a transfer characteristic of welding electrodes, flux, or other welding consumable, or materials used in producing welding consumables, in which an analytical scale or other weight measurement instrument is situated ... | 02/05/2008 |
| 7324904 | Methods for determining dimensional stability of wood products utilizing single and multiple sensor groups Systems and methods are provided for detecting the potential of a wood sample, such as a board, to stay on grade, i.e., resist warp, after it is put into service and/or its moisture has re-equilibrated with the surrounding environment. The systems and methods includ... | 01/29/2008 |
| 7320244 | Fitness for use of fiberglass insulation A method for determining the water resistance of glass fiber based insulation to wetting by water is disclosed. The method generally comprise the steps of placing a sample of insulation into contact with a source of water for a defined period of time; removing the i... | 01/22/2008 |