Patents by Inventor Danny A. Keith
Danny A. Keith has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20170348657Abstract: A system can include a dry powder mixing tank, a first powder input, a second powder input, a powder output, and a detection device. The first powder input and the second powder input can introduce powders containing different substances that become mixed in the dry powder mixing tank. The detection device can detect information about amounts of different substances in a blend of powder moved out of the tank by the powder output. In some aspects, portions of the blend that do not satisfy parameters for the blend can be diverted from a receptacle for the blend based on the detected information.Type: ApplicationFiled: January 20, 2015Publication date: December 7, 2017Inventors: Danny Keith Mints, Rickey Lynn Morgan, Paul Lewis Mendenall
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Publication number: 20170334154Abstract: A laminated moulded part of fibre-reinforced resin matrix composite material, the moulded part comprising a first ply comprising fibres impregnated with a resin, an outer surface of the first ply defining an outer surface of the laminated moulded part, a rope located around at least a part of a periphery of the first ply, the rope comprising a plurality of strands of fibres twisted together and impregnated with a resin, a second ply comprising fibres impregnated with a resin, the second ply at least partly covering an inner surface of the first ply, at least a portion of a peripheral edge of the second ply being located inwardly of a corresponding portion of the rope, and at least a portion of the periphery of the first ply being folded over so as to wrap around the rope and cover the corresponding peripheral edge of the second ply.Type: ApplicationFiled: November 30, 2015Publication date: November 23, 2017Applicant: Gurit (UK) LimitedInventors: Daniel Thomas Jones, Stephen Patrick Main, Danny Keith Watts
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Patent number: 9671379Abstract: Optically interacting electromagnetic radiation with a flowing atmospheric air composition and optically interacting the electromagnetic radiation with an integrated computational element (“ICE”), the ICE being configured to analyze for a contaminant in the flowing atmospheric air. A detector receives the electromagnetic radiation that has optically interacted with the flowing atmospheric air and the ICE and generates an output signal corresponding to a characteristic of the contaminant in the flowing atmospheric air.Type: GrantFiled: November 10, 2014Date of Patent: June 6, 2017Assignee: HALLIBURTON ENERGY SERVICES, INC.Inventors: Rickey Lynn Morgan, Danny Keith Mints, Paul Lewis Mendenall
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Publication number: 20160131623Abstract: Optically interacting electromagnetic radiation with a flowing atmospheric air composition and optically interacting the electromagnetic radiation with an integrated computational element (“ICE”), the ICE being configured to analyze for a contaminant in the flowing atmospheric air. A detector receives the electromagnetic radiation that has optically interacted with the flowing atmospheric air and the ICE and generates an output signal corresponding to a characteristic of the contaminant in the flowing atmospheric air.Type: ApplicationFiled: November 10, 2014Publication date: May 12, 2016Applicant: Halliburton Energy Services, Inc.Inventors: Rickey Lynn Morgan, Danny Keith Mints, Paul Lewis Mendenall
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Publication number: 20150115691Abstract: A material haulage system that transports mining materials, such as but not limited to, coal, ore, etc., from a mine is provided. The material transport system includes a continuous conveyor that transports the mining material, a movable assembly that moves and/or supports the continuous conveyor, and a propulsion assembly attached to the movable assembly that maneuver the continuous conveyor through the mine.Type: ApplicationFiled: October 28, 2014Publication date: April 30, 2015Inventors: Cecil T. Brinager, Danny Keith Justice
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Patent number: 8297612Abstract: A media picking device for an image forming apparatus having a sensing mechanism for detecting the leading and trailing edge of a sheet of media being picked from a media input tray. The device includes a pick mechanism for picking the top-most media sheet; and a sensing mechanism including a sensor and a flag positioned adjacent the pick tire and moveable between at least two positions, the flag having a first end contacting the surface of a picked sheet; the flag moving from a first position to a second position when the leading edge of the picked sheet passes by and moving from the second position to the first position when the trailing edge of the picked sheet passes by. The sensing mechanism providing an output signal corresponding to the movement of the flag. The sensor is one of a photointerrupter, a proximity sensor, a potentiometer, and a switch.Type: GrantFiled: June 15, 2010Date of Patent: October 30, 2012Assignee: Lexmark International Inc.Inventors: Danny Keith Chapman, Richard Winston Thomas
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Patent number: 8195083Abstract: An imaging apparatus including an image transfer device, a first motor, a redrive section and a duplexing section. The first motor is drivingly connected to the image transfer device. The reversible redrive section is downstream from the image transfer device, and the reversible redrive section includes a second motor. The duplexing section includes a third motor. The duplexing section is positioned to receive media from the redrive section. The first motor, the second motor and the third motor are each independently controlled.Type: GrantFiled: March 11, 2008Date of Patent: June 5, 2012Assignee: Lexmark International, Inc.Inventors: Hassan Bahrami, Danny Keith Chapman, Joon Won Ha, Kevin Dean Schoedinger
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Publication number: 20110304093Abstract: A media picking device for an image forming apparatus having a sensing mechanism for detecting the leading and trailing edge of a sheet of media being picked while in a media input tray.Type: ApplicationFiled: June 15, 2010Publication date: December 15, 2011Inventors: Danny Keith Chapman, Richard Winston Thomas
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Publication number: 20110260834Abstract: An imaging apparatus having RFID tags associated with wearable components of a system to track the usage and wear levels of the wearable components. The RFID tags can be antennas formed from conductive material impregnated in the wear components such that the RFID tags are worn with the wearing of the wear components. The RFID tags may also be RFID chip tags having memory for storing information, a portion of which is updated in real time. The presence or absence of the impregnated antenna RFID tags or the updated information stored in the chip tags may be used to track usage and wear level of the wear components.Type: ApplicationFiled: April 21, 2010Publication date: October 27, 2011Inventors: Danny Keith Chapman, Kevin Dean Schoedinger, Mark Stephen Underwood
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Patent number: 7815797Abstract: A pre-filter assembly is for use in a skimmer of a residential swimming pool. The pre-filter comprises a skimmer collar and a cleanable filter basket. The skimmer collar is for placement on a rim of a below water surface opening within the skimmer. The cleanable filter basket is made of a water porous material. The filter basket is permanently secured at an edge defining the open-top to the skimmer collar. The filter basket further has a chevron shape for ease of use. Swimming water debris is trapped in the filter basket as pool water is pulled through the filter basket on its way to a primary filter apparatus. The filter basket is easily cleaned as needed and replaced.Type: GrantFiled: August 27, 2008Date of Patent: October 19, 2010Assignee: Zone Filtration, Inc.Inventor: Danny A. Keith
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Publication number: 20100072938Abstract: Correction of rotary encoder eccentricity in an image forming device having a motor controller using period and position pulse train feedback signals. A motor includes an encoder disc rotating with the motor and at least two encoder sensors disposed at different circumferential positions about the encoder disc. A controller may use a high speed clock to calculate a corrected speed count based on speed counts determined from the number of clock cycles that elapse per cycle of pulse trains from the encoders. The controller may also calculate a corrected position count based at least partly on one or more position counts determined from the number of clock cycles that elapse between periodic sampling points and transitions of encoder pulse trains. The corrected position count may also be calculated based on a position count and one or more speed counts.Type: ApplicationFiled: November 30, 2009Publication date: March 25, 2010Applicant: LEXMARK INTERNATIONAL, INC.Inventors: Brian Anthony Reichert, Steven Michael Turney, Danny Keith Chapman, Thomas Austin Fields
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Patent number: 7633256Abstract: Correction of rotary encoder eccentricity in an image forming device having a motor controller using period and position pulse train feedback signals. A motor includes an encoder disc rotating with the motor and at least two encoder sensors disposed at different circumferential positions about the encoder disc. A controller may use a high speed clock to calculate a corrected speed count based on speed counts determined from the number of clock cycles that elapse per cycle of pulse trains from the encoders. The controller may also calculate a corrected position count based at least partly on one or more position counts determined from the number of clock cycles that elapse between periodic sampling points and transitions of encoder pulse trains. The corrected position count may also be calculated based on a position count and one or more speed counts.Type: GrantFiled: May 4, 2005Date of Patent: December 15, 2009Assignee: Lexmark International, Inc.Inventors: Brian Anthony Reichert, Steven Michael Turney, Danny Keith Chapman, Thomas Austin Fields
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Patent number: 7613407Abstract: An image forming apparatus includes a waste toner system that collects waste toner in a waste toner container. An amount of waste toner collected in the container is increased by using a driven toner distributing member that distributes accumulated toner within the container. The toner distributing member may be driven by a shared speed-controlled motor that further drives an image forming process member. The waste toner system may detect the accumulation of waste toner by monitoring a drive control circuit while the toner distributing member is being driven. For example, a logic circuit may detect the accumulation of waste toner based on monitoring a predetermined frequency of interest of a frequency domain transform of a motor control signal, the frequency of interest associated with the shared motor driving the toner distributing member.Type: GrantFiled: May 15, 2006Date of Patent: November 3, 2009Inventors: Michael William Craig, Steven Michael Turney, Danny Keith Chapman
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Publication number: 20090166944Abstract: An imaging apparatus including an image transfer device, a first motor, a redrive section and a duplexing section. The first motor is drivingly connected to the image transfer device. The reversible redrive section is downstream from the image transfer device, and the reversible redrive section includes a second motor. The duplexing section includes a third motor. The duplexing section is positioned to receive media from the redrive section. The first motor, the second motor and the third motor are each independently controlled.Type: ApplicationFiled: March 11, 2008Publication date: July 2, 2009Applicant: LEXMARK INTERNATIONAL, INC.Inventors: Hassan Bahrami, Danny Keith Chapman, Joon Won Ha, Kevin Dean Schoedinger
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Patent number: 7325629Abstract: A method for integrating a batch cement process with a cuttings reinjection process, the method comprising: equipping a batch cement skid with a particle classifier and a grinding pump, such that the batch cement skid sequentially implements the cuttings reinjection process and the batch cement process is disclosed. An apparatus for performing a batch cement process and a cuttings reinjection process, the apparatus comprising: a first tank and a second tank, a particle classifier having a coarse effluent stream feeding into the first tank and a fine effluent stream feeding into the second tank, and a grinding pump in fluid communication with the first tank and the particle classifier is also disclosed.Type: GrantFiled: September 8, 2005Date of Patent: February 5, 2008Assignee: Halliburton Energy Services, Inc.Inventors: Keith Edward Blaschke, Kevin Michael Stewart, Bryan Clint Walker, Timothy Neal Harvey, Danny Keith Mints
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Patent number: 7245103Abstract: A method of controlling the speed and position of a motor includes receiving a pulse train indicative of the speed of the motor, and a periodic signal at a frequency greater than the pulse train. The number of cycles of the periodic signal per cycle of the pulse train is counted, and compared to a predetermined number. The speed of the motor is adjusted to match the count to the predetermined number, thus effecting speed control. A command position signal defining a plurality of sampling points is generated. The number of cycles of the periodic signal between a sampling point of the command position signal and an operative edge of the pulse train is counted and compared to a predetermined number. The speed of the motor is further adjusted to match the count to the predetermined number, thus effecting position control.Type: GrantFiled: March 3, 2003Date of Patent: July 17, 2007Assignee: Lexmark International, Inc.Inventors: Danny Keith Chapman, Steven Michael Turney
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Patent number: 7205738Abstract: A motor control circuit uses a stored commutation table to effect time-based commutation of a brushless dc motor. Each entry in the commutation table defines a motor winding commutation state, and an exemplary method of open-loop motor control based on the commutation table comprises commutating the motor based on sequentially selecting table entries at a desired selection rate. That is, motor speed is controlled precisely by controlling the sequential selection rate rather than by relying on feedback from the motor. However, motor feedback for closed-loop control may be used in some modes of operation. For example, the method may include closed-loop control or open-loop control depending on the motor speed range, and may transition from closed-loop to open-loop control.Type: GrantFiled: March 24, 2004Date of Patent: April 17, 2007Assignee: Lexmark International, Inc.Inventors: Danny Keith Chapman, Thomas Austin Fields, Steven Michael Turney
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Patent number: 7012390Abstract: An improved variable speed fan controller for use in devices such as laser printers. The controller automatically adjusts its output signal to fans such that a fan quickly settles into an appropriate operating speed, even if the fan has been newly installed into the equipment. The controller can store values in non-volatile memory, if desired, to keep track of recent changes in the fan's operating parameters and corresponding control signal values. The controller is able to control relatively inexpensive fans that don't necessarily operate at a predictable fan rotating speed under repeatable conditions and control signals, by controlling the fan to an initial or predetermined rotating speed; if the fan isn't running within a suitable range of rotational speeds, then determining whether a fine or coarse adjustment should be made to the fan's rotational speed. The controller makes appropriate adjustments until the fan's rotational speed is within acceptable operating tolerances.Type: GrantFiled: October 6, 2004Date of Patent: March 14, 2006Assignee: Lexmark International, Inc.Inventors: Douglas Anthony Able, David Herman Alverson, Danny Keith Chapman, David Ross Cutts, Jr., Brian Michael Jacobs, Matthew David Miles, Michael Todd Phillips, Benjamin Kyle Shepherd, Mark Stephen Underwood, Marshall Lee White
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Patent number: 6889013Abstract: In an electrophotographic print mechanism wherein one motor drives two or more removable toner cartridges, the presence of each cartridge is sensed and reported to the motor controller. If one or more cartridges are removed, such as for single-color printing, the motor control equation parameters are altered to compensate for the altered static torque load experienced by the motor. The parameters may be the proportional, integral, and/or derivative gains for one or more PID controllers.Type: GrantFiled: June 10, 2003Date of Patent: May 3, 2005Assignee: Lexmark International, Inc.Inventors: Danny Keith Chapman, Steven Michael Turney
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Publication number: 20040253008Abstract: In an electrophotographic print mechanism wherein one motor drives two or more removable toner cartridges, the presence of each cartridge is sensed and reported to the motor controller. If one or more cartridges are removed, such as for single-color printing, the motor control equation parameters are altered to compensate for the altered static torque load experienced by the motor. The parameters may be the proportional, integral, and/or derivative gains for one or more PID controllers.Type: ApplicationFiled: June 10, 2003Publication date: December 16, 2004Inventors: Danny Keith Chapman, Steven Michael Turney