Patents by Inventor David Bartholomew
David Bartholomew 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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Patent number: 9166242Abstract: An energy harvester comprising: a microbial fuel cell comprising an anode; and a pump comprising a flexible diaphragm that is configured to be flexed by an ambient, renewable energy source such that with each flexing of the diaphragm nutrient-rich media is pumped past the anode.Type: GrantFiled: August 13, 2013Date of Patent: October 20, 2015Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Wayne Po-Wen Liu, David Bartholomew Chadwick, Jeffrey Asher Kagan
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Publication number: 20150290711Abstract: A system for use in ultrasonic additive manufacturing processes, comprising a milling machine or the like and a weld assembly. The milling machine further includes a spindle adapted to receive a milling tool, wherein the spindle is capable of moving in the z-axis direction; and a table positioned beneath the spindle, wherein the table is capable of moving in the x-axis direction and the y-axis direction. The weld assembly is adapted to be mounted on the spindle of the milling machine and further includes an ultrasonic weld head; a tapered tool shank adapted to connect the weld assembly to the spindle; and a unique mating collar disposed between the ultrasonic weld head and the spindle, wherein the mating collar is operative transfer thrust loads associated with ultrasonic additive manufacturing processes from the ultrasonic weld head to the z-axis of the spindle without damaging the spindle or other components of the machine.Type: ApplicationFiled: April 9, 2014Publication date: October 15, 2015Inventors: Mark NORFOLK, David BARTHOLOMEW, Charles SIDLOSKY
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Publication number: 20150249257Abstract: An energy harvester comprising: a microbial fuel cell comprising an anode; and a pump comprising a flexible diaphragm that is configured to be flexed by an ambient, renewable energy source such that with each flexing of the diaphragm nutrient-rich media is pumped past the anode.Type: ApplicationFiled: August 13, 2013Publication date: September 3, 2015Inventors: Wayne Po-Wen Liu, David Bartholomew Chadwick, Jeffrey Asher Kagan
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Patent number: 9040204Abstract: A microbial fuel cell comprising: a first cathode; at least two anodes electrically connected to each other and to the cathode in a reconfigurable manner; and a processor operatively coupled to the anodes and configured to monitor a parameter of each anode to determine if a given anode has been oxygen-contaminated, and further configured to convert an oxygen-contaminated anode into a second cathode by reconfiguring the electrical connections.Type: GrantFiled: February 21, 2013Date of Patent: May 26, 2015Assignee: The United States of America as represented by the Secretary of the NavyInventors: Wayne P. Liu, David Bartholomew Chadwick, Kenneth E. Richter, Adriane Q. Wotawa-Bergen, Jeffrey Asher Kagan
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Patent number: 8574482Abstract: Method of cold casting a composite product which includes the steps of making a composite mixture comprising a curable resin and metal particles, pouring the composite mixture into a mold made of a machinable and recyclable substrate; and curing the composite mixture in a pressurized chamber for a time sufficient to eliminate the appearance of bubbles in the cured composite mixture. The curable resin is selected to have a cure time and a viscosity that allows the metal particles to fall to the bottom of the mold to appear on the face of the composite product. The finished product can resemble traditional foundry cast metal products while employing a much lower amount of metal to achieve cost savings.Type: GrantFiled: January 21, 2010Date of Patent: November 5, 2013Assignee: Fusioncast Inc.Inventors: David A. Bartholomew, Brett Coates
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Patent number: 8206307Abstract: An ultrasound probe is provided having an ultrasound module received in a housing thereof, the ultrasound module including a plurality of transducers longitudinally spaced apart within the housing and a control and processing system electrically coupled to the transducers for collecting ultrasonic data representative of a target biological tissue when the ultrasound probe is in operation. A motor is likewise received in the housing to rotate, oscillate and/or translate the ultrasound module in a data collection mode. Coupling fluid is received in the housing to at least partially surround the ultrasound module and the motor. A method of obtaining ultrasonic data representative of a target biological tissue, such as a bladder, for diagnostic purposes is also provided.Type: GrantFiled: November 17, 2010Date of Patent: June 26, 2012Assignee: dBMEDx Inc.Inventors: William Barnard, David Bartholomew Shine
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Patent number: 8109329Abstract: An annular coupler for transmitting data across a tool joint may include a first coupler segment spanning a first portion of the circumference of the annular coupler. The annular coupler may further include a second coupler segment, electrically insulated from the first coupler segment, which spans a second portion of the circumference of the annular coupler. In selected aspects, the first and second portions do not overlap one another along the circumference. In certain aspects, the first and second coupler segments each span about fifty percent of the circumference of the annular coupler. Thus, each coupler segment may make up roughly half of the annular coupler.Type: GrantFiled: January 15, 2009Date of Patent: February 7, 2012Assignee: Intelliserv, L.L.C.Inventors: Jeff Bray, David Bartholomew
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Publication number: 20120012470Abstract: In one general aspect, a system can include a probe configured to be coupled to a concrete surface of a portion of concrete. The system can include a waveform generator configured to trigger flow of a current to the portion of concrete via the probe and configured to reference a potential of a reinforcing bar embedded within the concrete. The system can also include a current detector configured to detect a magnitude of the current.Type: ApplicationFiled: July 14, 2011Publication date: January 19, 2012Applicant: BRIGHAM YOUNG UNIVERSITYInventors: Paul David Bartholomew, William Spencer Guthrie, Brian Anthony Mazzeo
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Publication number: 20110224551Abstract: An ultrasound probe is provided having an ultrasound module received in a housing thereof, the ultrasound module including a plurality of transducers longitudinally spaced apart within the housing and a control and processing system electrically coupled to the transducers for collecting ultrasonic data representative of a target biological tissue when the ultrasound probe is in operation. A motor is likewise received in the housing to rotate, oscillate and/or translate the ultrasound module in a data collection mode. Coupling fluid is received in the housing to at least partially surround the ultrasound module and the motor. A method of obtaining ultrasonic data representative of a target biological tissue, such as a bladder, for diagnostic purposes is also provided.Type: ApplicationFiled: November 17, 2010Publication date: September 15, 2011Applicant: dBMEDx INCInventors: William Barnard, David Bartholomew Shine
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Patent number: 7810125Abstract: A telephone link for set top box communication between the set top box and a central office is provided. This invention makes use of an AC power line to provide a communication channel between the set top box and the central office. The set top box is configured to include an interface, including coupling and modulation, between the set top box and the AC power line. A base unit, connected to the central office provides another interface configured to facilitate the coupling and modulation of signals between the central office and the AC power line.Type: GrantFiled: April 5, 2007Date of Patent: October 5, 2010Assignee: Phonex Broadband CorporationInventors: David Bartholomew, Scott Smith, Alan Stettler
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Publication number: 20100181701Abstract: Method of cold casting a composite product, a pressure curing apparatus for use in curing a composite mixture under pressure, and use of the pressure curing apparatus in the present method. The method of cold casting a composite product includes the step of curing a composite resin mixture under pressure to eliminate the appearance of bubbles in the composite product. The pressure curing apparatus comprises, amongst other things, a pressure chamber that is sized and shaped to conform with the size and shape of a mold inserted therein to minimize wasted space and reduce the amount of energy required to pressurize the chamber.Type: ApplicationFiled: January 21, 2010Publication date: July 22, 2010Inventors: David A. Bartholomew, Brett Coates
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Publication number: 20100175890Abstract: An annular coupler for transmitting data across a tool joint may include a first coupler segment spanning a first portion of the circumference of the annular coupler. The annular coupler may further include a second coupler segment, electrically insulated from the first coupler segment, which spans a second portion of the circumference of the annular coupler. In selected aspects, the first and second portions do not overlap one another along the circumference. In certain aspects, the first and second coupler segments each span about fifty percent of the circumference of the annular coupler. Thus, each coupler segment may make up roughly half of the annular coupler.Type: ApplicationFiled: January 15, 2009Publication date: July 15, 2010Inventors: Jeff Bray, David Bartholomew
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Patent number: 7711489Abstract: A Trident Probe Groundwater Exchange System (NC#096456). The apparatus includes a groundwater conductivity sensor, designed to determine a groundwater conductivity surface; a water conductivity sensor, designed to determine a surface water conductivity groundwater; a temperature sensor, designed to determine a groundwater temperature; a surface water temperature sensor, designed to determine a surface water temperature; and a processor operatively coupled to a plurality of sensors and designed to receive information from the plurality of sensors.Type: GrantFiled: September 27, 2007Date of Patent: May 4, 2010Assignee: United States of America as represented by Secretary of the NavyInventors: David Bartholomew Chadwick, Gregory Jon Groves, Christopher Field Smith, Ronald J. Paulsen
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Publication number: 20100054273Abstract: Token authorized packet exchange between a plurality of store-and-forward nodes in a downhole networking environment and respective applications for data processing and communication are described herein.Type: ApplicationFiled: November 10, 2009Publication date: March 4, 2010Inventors: Monte Johnson, David Bartholomew
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Patent number: 7649473Abstract: Token authorized packet exchange between a plurality of store-and-forward nodes in a downhole networking environment and respective applications for data processing and communication are described herein.Type: GrantFiled: February 14, 2007Date of Patent: January 19, 2010Assignee: IntelliServ, Inc.Inventors: Monte Johnson, David Bartholomew
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Patent number: 7570175Abstract: Token authorized node discovery between a plurality of store-and-forward nodes in a downhole networking environment and respective applications for data processing and communication are described herein.Type: GrantFiled: February 14, 2007Date of Patent: August 4, 2009Assignee: IntelliServ International Holding, Ltd.Inventors: Monte Johnson, Mark Stillings, David Bartholomew
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Patent number: 7444891Abstract: A method includes providing a sampling device having a sampling chamber therein, a pump operatively coupled to the sampling chamber, and a drive means coupled to the sampling chamber; situating the sampling device against an underwater boat hull having contaminants attached thereto, wherein situating the sampling device against the underwater boat hull causes water to be disposed within the sampling chamber; activating the pump to remove a portion of the water from the sampling chamber, wherein negative pressure is created within the sampling chamber and a watertight seal is formed between the sampling chamber and the underwater boat hull; activating the drive means to remove a sample of the contaminants from the underwater boat hull, wherein the sample of the contaminants is collected in the sampling chamber; deactivating the mechanical drive means; and sealing the sampling chamber, wherein the sample of the contaminants is stored within the sampling chamber.Type: GrantFiled: June 7, 2006Date of Patent: November 4, 2008Assignee: The United States of America as represented by the Secretary of the NavyInventors: David Bartholomew Chadwick, Ignacio Rivera-Duarte, Robert Martin Cook
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Patent number: 7437959Abstract: An In-Water Hull Cleaning Sampling Device includes a sampling chamber, a drive shaft housing, a drive shaft sealing membrane, a drive shaft, a spring retainer, a pressure spring, a cleaning pad, a mechanical drive device and a chamber sealing means. The sampling chamber further includes a chamber sealing membrane coupled to a base; and a chamber wall coupled to the base and a chamber ceiling.Type: GrantFiled: May 1, 2006Date of Patent: October 21, 2008Assignee: The United States of America as represented by the Secretary of the NavyInventors: David Bartholomew Chadwick, Ignacio Rivera-Duarte, Robert Martin Cook
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Publication number: 20080007425Abstract: A tubular component in a downhole tool string has a first end and a second end. The first end includes first and second inductive couplers, and the second end includes third and fourth inductive couplers. The component has a first conductive medium and second conductive medium. The first conductive medium is connecting the first and third couplers, and the second conductive medium is connecting the second and fourth couplers. The first and second ends may include additional inductive couplers and the component may include an additional conductive medium connecting the additional couplers. A tubular component in a downhole tool string may have a first end and a second end and electronic equipment disposed in the component. The first end may have a first plurality of inductive couplers, and the component may have a conductive medium connecting each inductive coupler of the first plurality of inductive couplers and the electronic equipment.Type: ApplicationFiled: September 26, 2007Publication date: January 10, 2008Inventors: David Hall, David Bartholomew, Joe Fox
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Patent number: 7277026Abstract: A tubular component in a downhole tool string has a first end and a second end. The first end includes first and second inductive couplers, and the second end includes third and fourth inductive couplers. The component further has a first conductive medium and second conductive medium. The first conductive medium is connecting the first and third couplers, and the second conductive medium is connecting the second and fourth couplers. The first and second ends may include additional inductive couplers and the component may include an additional conductive medium connecting the additional couplers. A tubular component in a downhole tool string may have a first end and a second end and electronic equipment disposed in the component. The first end may have a first plurality of inductive couplers, and the component may further have a conductive medium connecting each inductive coupler of the first plurality of inductive couplers and the electronic equipment.Type: GrantFiled: May 21, 2005Date of Patent: October 2, 2007Inventors: David R. Hall, David Bartholomew, Joe Fox