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"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 8154279 | Non-destructive testing apparatus for the detection of graphitization of iron A sensor measures the interaction of an applied magnetic field to an iron sample surface to determine whether the sample surface has been graphitized. The sensor measures the magnetic force resulting from the interaction or the magnetic flux density to determine the... | 04/10/2012 |
| 8082823 | Scraping tool A stationary frame is positioned in surrounding relation with the surface of a polyethylene conduit to be prepared for scraping preliminary to performing electrofusion on the conduit by a keyhole operation in an excavated underground location. A scraper tool is moun... | 12/27/2011 |
| 8077040 | RF-enabled pallet The inventions involve material handling apparatus developed to operate in radio frequency rich environments. Articles are provided having at least one large compartment capable of enclosing at least one electronic device or a package populated with a plurality of d... | 12/13/2011 |
| 8065938 | Interchangable extension tool for performing operations in limited space work areas A shaft has a driving end and a driven end. A plurality of driving adaptors with various handles are releasably connected to the shaft driving end. A plurality of driven adaptors with various tools for performing operations within a limited space work area, such as ... | 11/29/2011 |
| 8062101 | Sanding glove A glove body, a barrier, and an abrasive layer form a flexible sanding device that fits over the hand of user to perform complex sanding operations on intricate or detailed objects. The glove body includes a palm portion, a plurality of finger portions, and a thumb ... | 11/22/2011 |
| 7963235 | Thermoformed platform having a communications device Articles constructed of a plurality of scuffed sheets have improved sheet-to-sheet bond strength and surfaces with high coefficients of friction. Articles constructed out of three scuffed sheets include exterior intumescent polymeric surfaces resisting the spread of... | 06/21/2011 |
| 7948371 | Material handling apparatus with a cellular communications device The invention involves a material handling apparatus tracking system that uses cellular communications to send and receive information between the apparatus and a network. The cellular communication devices operate in radio frequency rich environments and contain ad... | 05/24/2011 |
| 7937867 | Sign assembly A tab extending from a panel is inserted into a channel through an opening in a vertically aligned bracket supported by a pole. The bracket includes a pair of plates positioned in spaced overlying relation and connected by a brace to form the channel between the pla... | 05/10/2011 |
| 7874256 | Fire resistant plastic pallet with low radio frequency resistivity A halogen free fire resistant RF transparent polymer pallet has attenuated electrical resistance. A pallet body has a fire resistant layer and a substrate supporting the fire resistant layer. The fire resistant layer includes fire retardant materials, such as Al(OH)... | 01/25/2011 |
| 7862787 | Heat recovery device for a boiler A boiler conveys an exhaust gas stream to a heat recovery device. The heat recovery device includes an air straightener, a heat recovery unit or feedwater heater, and a catalyst assembly positioned between the air straightener and the feedwater heater. The catalyst ... | 01/04/2011 |
| 7804400 | Thermoformed platform having a communications device An apparatus has a communications device associated therewith. In another aspect of the present invention, a pallet is made from thermoformed polymeric sheets with an attached communications device. A further aspect of the present invention provides a radio frequenc... | 09/28/2010 |
| 7789024 | Thermoformed platform having a communications device An apparatus has a communications device associated therewith. In another aspect of the present invention, a pallet is made from thermoformed polymeric sheets with an attached communications device. A further aspect of the present invention provides a radio frequenc... | 09/07/2010 |
| 7752980 | Material handling apparatus having a reader/writer An industrial platform, specifically, a pallet or a container, for storing and transporting articles with attached RFID tags includes an electronic communications device having components that are tracked to identify the location and status of the platform. The devi... | 07/13/2010 |
| 7735430 | Thermoformed platform Articles constructed of a plurality of scuffed sheets have improved sheet-to-sheet bond strength and surfaces with high coefficients of friction. Articles constructed out of three scuffed sheets include exterior intumescent polymeric surfaces resisting the spread of... | 06/15/2010 |
| 7719266 | Non-destructive testing apparatus for the detection of corrosion A sensor measures the interaction of an applied magnetic field to a sample surface that includes magnetic materials to determine whether the samples surface has been corroded. The sensor measures the magnetic force resulting from the interaction or the magnetic flux... | 05/18/2010 |
| 7520341 | Drill head assembly A drill housing rotatably supports a shaft having an internal cavity for receiving a drilling device, such as a drill steel, bolt driver, and rock anchor adaptor. The upper end of the housing is closed by a cover plate and a flinger having an opening for receiving p... | 04/21/2009 |
| 7513319 | Reamer bit A drill steel includes a drill bit and a reamer bit. The drill steel rotates the drill bit to form a hole in a work surface and drives forward to insert the reamer bit into the hole. The reamer bit includes a plurality of inserts positioned on a cylindrical drilling... | 04/07/2009 |
| 7411659 | Crop device for framing A sheet includes a plurality of incisions that define a plurality of frames. The frames are arranged in a geometric pattern to facilitate selection of an appropriate frame for cropping an image displayed on photographic media. The frames are connected to each other ... | 08/12/2008 |
| 7347124 | Drive tool with universal joint head In accordance with the present invention there is provided a drive tool assembly that includes a shaft having a drive end portion and a driven end portion with a longitudinal axis extending therebetween. The shaft driven end portion is flexible relative to the shaft... | 03/25/2008 |
| 7342496 | RF-enabled pallet The inventions involve material handling apparatus developed to operate in radio frequency rich environments. Articles are provided having at least one large compartment capable of enclosing at least one electronic device or a package populated with a plurality of d... | 03/11/2008 |
| 7337720 | Doctor blade design for metering ink transfer to anilox cells A dual-doctor blade assembly that can accurately meter ink delivery to the anilox cells on the anilox roll of a flexographic printing system. The system utilizes a retractable dual-blade configuration in conjunction with an ink chamber and a gap between the lower do... | 03/04/2008 |
| 7228922 | Drill bit A drill bit has a pair of cutting teeth with cutting elements extending from a cutting end portion of the drill bit. Each cutting tooth extends radially, outwardly parallel to a longitudinal axis of the drill steel. The cutting teeth are juxtaposed with one another ... | 06/12/2007 |
| 6943678 | Thermoformed apparatus having a communications device An apparatus has a communications device associated therewith. In another aspect of the present invention, a pallet is made from thermoformed polymeric sheets with an attached communications device. A further aspect of the present invention provides a radio frequenc... | 09/13/2005 |
| 6896567 | Marine motor cooling system flushing apparatus and method A compound is added to a device that flushes the cooling system of a marine motor. The device conveys liquid from a source to the marine motor. The liquid is mixed with a compound to form a flushing solution. The compound in solution performs three functions: removi... | 05/24/2005 |
| 6833023 | Air filter assembly A filter assembly includes a conical filter element sealingly clamped to a cylindrical base. A conical housing is releasably clamped to the base with spring clips in surrounding relation with the filter element to allow for efficient installation and removal of the ... | 12/21/2004 |
| 6724791 | Method and apparatus for controlling the temperature of a laser module in fiber optic transmissions A semiconductor laser diode for transmitting optical signals in a telecommunications network is housed within a module supported adjacent to a thermoelectric cooling element that is mounted in thermally conductive contact with a heat sink. The cooling element is pos... | 04/20/2004 |
| 6717282 | Combined motor and generator dynamometer system A turboshaft or shafted engine, as used in helicopter, aircraft, locomotive, marine engines, and the like, is tested in accordance with a routine maintenance schedule. The turboshaft is drivingly connected to a motor/generator set that also performs the operation of... | 04/06/2004 |
| 6695071 | Drill head assembly A drill head for holding a drill steel includes a drill housing having an internal cavity defined by an upper opening and a lower portion with a lower opening extending therethrough. The internal cavity includes a pair of concentric axially aligned sleeve... | 02/24/2004 |
| 6602040 | Method and apparatus for transporting materials in a mine A self-propelled vehicle transports materials and equipment loaded onboard the vehicle to a desired location in an underground mine. A low profile frame is propelled by endless tracks which support a solid deck divided into a materials handling platform a... | 08/05/2003 |
| 6588826 | Rigid cover assembly for a pickup truck A hard cover is easily installed, removed, replaced, and inspected on the open bed of a pickup truck. The hard cover is a unitary thermoformed sheet material mounted on a rail frame assembly secured to side walls of the truck bed. The hard cover is hinged... | 07/08/2003 |
| 6580319 | Amplitude and phase transfer linearization method and apparatus for a wideband amplifier In a transfer linearization (TL) circuit one or more biased nonlinear elements form a nonlinear attenuator and a biased network to allow adjustment of diodes to linearize the overall transfer of the TL circuit and an amplifier being linearized. The transf... | 06/17/2003 |
| 6279594 | Flow actuated valve An upright cylindrical valve body has an inlet port axially aligned with an outlet port. A valve member is retained for reciprocal movement into and out of engagement with a valve seat axial aligned with fluid flow between the inlet and outlet ports. A re... | 08/28/2001 |
| 6214233 | Process for simultaneous oxidation of cyanide and recovery of heavy metals from waste water A waste water stream containing cyanide bearing compounds and heavy metals such as copper, silver, nickel, iron and the like is directed from a source after pH adjustment to a first tank containing adsorption material in the form of granular activated car... | 04/10/2001 |
| 6210309 | Sheet folding method and apparatus utilizing convex folder and guide An envelope blank is conveyed through a folding mechanism that folds one or more flaps of the blank. In folding a side flap the leading edge of the blank adjacent to the score line follows in a helical path a convex face of a plowshare. The plowshare face... | 04/03/2001 |
| 6171734 | Security printed document to prevent unauthorized copying A paper substrate is laminated with a metalized layer forming a mirrored surface. A partially transparent black diffraction grating is applied by stochastic screening to the mirrored surface. The diffraction grating forms a random pattern from selected ge... | 01/09/2001 |
| 6162409 | Process for removing Nox and Sox from exhaust gas An exhaust gas stream containing oxides of nitrogen and sulfur from a fossil fuel fired boiler, a fired process heater, or a chemical process are diverted from a stack prior to emission to the atmosphere through a duct system to a mixer where an oxidant, ... | 12/19/2000 |
| 6155554 | Multiple action shovel feed mechanism for stacked sheets A stack of sheets or blanks are supported for individual high speed feeding from the bottom of the stack on a table positioned adjacent to a feed cylinder. An air blast from a pivotal nozzle deflects the leading edge of the bottom blank downwardly into en... | 12/05/2000 |
| 6095961 | Radial aligner and folding mechanism A series of overlapping envelope blanks are fed into contact with a pull-out roll which engages and accelerates the first blank to separate it from the remaining blanks. From the pull-out roll, the separated blank is fed onto the surface of a rotary align... | 08/01/2000 |
| 6070944 | Phasing valve assembly for supplying water to a mining machine cutter drum A boom mounted cutter drum assembly of a continuous mining machine includes a center drum section, a pair of intermediate drum sections, and a pair of end drum sections. Spray nozzles on the cutting elements of the cutter drum assembly phasingly direct li... | 06/06/2000 |
| 6068253 | Adjustable sheet separating device A leading edge of a leading blank in a series of overlapping envelope blanks is fed at a preselected speed into contact with a rotatably mounted backing roller. The backing roller is mounted in a frame and is selectively adjustable between a first positio... | 05/30/2000 |
