Patents by Inventor Jim Weaver
Jim Weaver 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: 9520799Abstract: An energy efficient apparatus includes a switching device, a frequency dependent reactive device, and a control element is provided. The switching device is coupled to a source of electrical power and includes a pair of transistors and is adapted to receive a control signal and to produce an alternating current power signal. The frequency of the alternating current power signal is responsive to the control signal. The frequency dependent reactive device is electrically coupled to the pair of transistors for receiving the alternating current power signal and producing an output power signal. The frequency dependent reactive device is chosen to achieve a desired voltage of the output power signal relative to the frequency of the alternating current power signal. The control element senses an actual voltage of the direct current power signal and modifies the control signal delivered to achieve the desired voltage of the direct current power signal.Type: GrantFiled: August 17, 2012Date of Patent: December 13, 2016Assignee: ADVANCED CHARGING TECHNOLOGIES, LLCInventors: W. J. “Jim” Weaver, Jr., Michael H. Freeman, Mitchael C. Freeman, Robert Dieter, Brian Santee
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Patent number: 9520723Abstract: A power device including a power circuit assembly, a first plug assembly, and a second plug assembly is described herein. The first plug assembly is coupled to the power circuit assembly for transmitting power from a power source to the power circuit assembly at a first voltage. The second plug assembly is coupled to the power circuit assembly for controllably transmitting power from the power source to the power circuit assembly at a second voltage and at a third voltage.Type: GrantFiled: October 5, 2015Date of Patent: December 13, 2016Assignee: ADVANCED CHARGING TECHNOLOGIES, LLCInventors: W.J. “Jim” Weaver, Jr., Michael H. Freeman, Mitchael C. Freeman, Robert Dieter, Brian Santee, Roy Matthew Milner, II
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Patent number: 9461546Abstract: An energy efficient apparatus includes a switching device, a frequency dependent reactive device, and a control element is provided. The switching device is coupled to a source of electrical power and includes a pair of transistors and is adapted to receive a control signal and to produce an alternating current power signal. The frequency of the alternating current power signal is responsive to the control signal. The frequency dependent reactive device is electrically coupled to the pair of transistors for receiving the alternating current power signal and producing an output power signal. The frequency dependent reactive device is chosen to achieve a desired voltage of the output power signal relative to the frequency of the alternating current power signal. The control element senses an actual voltage of the direct current power signal and modifies the control signal delivered to achieve the desired voltage of the direct current power signal.Type: GrantFiled: January 30, 2014Date of Patent: October 4, 2016Assignee: ADVANCED CHARGING TECHNOLOGIES, LLCInventors: Michael H. Freeman, W. J. “Jim” Weaver, Jr., Mitchael C. Freeman, Robert Dieter, Brian Santee
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Publication number: 20160276951Abstract: An energy efficient apparatus includes a switching device, a frequency dependent reactive device, and a control element is provided. The switching device is coupled to a source of electrical power and includes a pair of transistors and is adapted to receive a control signal and to produce an alternating current power signal. The frequency of the alternating current power signal is responsive to the control signal. The frequency dependent reactive device is electrically coupled to the pair of transistors for receiving the alternating current power signal and producing an output power signal. The frequency dependent reactive device is chosen to achieve a desired voltage of the output power signal relative to the frequency of the alternating current power signal. The control element senses an actual voltage of the direct current power signal and modifies the control signal delivered to achieve the desired voltage of the direct current power signal.Type: ApplicationFiled: December 10, 2015Publication date: September 22, 2016Inventors: Michael H. Freeman, W.J. "Jim" Weaver, JR., Mitchael C. Freeman, Robert Dieter, Brian Santee
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Patent number: 9431914Abstract: An electrical circuit for providing electrical power for use in powering electronic devices is described herein. The electrical circuit includes a primary power circuit and a secondary power circuit. The primary power circuit receives an alternating current (AC) input power signal from an electrical power source and generates an intermediate direct current (DC) power signal. The intermediate DC power signal is generated at a first voltage level that is less than a voltage level of the AC input power signal. The secondary power circuit receives the intermediate DC power signal from the primary power circuit and delivers an output DC power signal to an electronic device. The output DC power signal is delivered at an output voltage level that is less than the first voltage level of the intermediate DC power signal.Type: GrantFiled: October 28, 2014Date of Patent: August 30, 2016Assignee: ADVANCED CHARGING TECHNOLOGIES, LLCInventors: Michael H. Freeman, W.J. “Jim” Weaver, Jr., Mitchael C. Freeman, Robert Dieter, Glenn Noufer, Randall L. Sandusky, Jim Sesters, Neaz E. Farooqi, Jim Devoy, Jay Cormier, Silvia Jaeckel, Andrea Baschirotto, Piero Malcovati
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Publication number: 20160233781Abstract: An energy efficient apparatus includes a switching device, a frequency dependent reactive device, and a control element is provided. The switching device is coupled to a source of electrical power and includes a pair of transistors and is adapted to receive a control signal and to produce an alternating current power signal. The frequency of the alternating current power signal is responsive to the control signal. The frequency dependent reactive device is electrically coupled to the pair of transistors for receiving the alternating current power signal and producing an output power signal. The frequency dependent reactive device is chosen to achieve a desired voltage of the output power signal relative to the frequency of the alternating current power signal. The control element senses an actual voltage of the direct current power signal and modifies the control signal delivered to achieve the desired voltage of the direct current power signal.Type: ApplicationFiled: October 27, 2015Publication date: August 11, 2016Inventors: Michael H. Freeman, W.J. "Jim" Weaver, JR., Mitchael C. Freeman, Robert Dieter, Brian Santee
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Publication number: 20160230065Abstract: Dual-purpose additives that may be used as viscosifying agents and surface active agents in fluids, subterranean treatments and oilfield operations are provided. In one embodiment, the methods comprise: providing a treatment fluid comprising a base fluid and a polymeric dual-purpose additive comprising a base polymer comprising a plurality of monomer units, and one or more hydrophobic groups bonded to at least one of the monomer units; introducing the treatment fluid into at least a portion of a subterranean formation; and depolymerizing at least a portion of the dual-purpose additive to form one or more surface active fragments, each of the surface active fragments comprising one or more of the hydrophobic groups bonded to one or more of the monomer units.Type: ApplicationFiled: October 17, 2013Publication date: August 11, 2016Inventors: Jim Weaver, Michael McCabe
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Publication number: 20160215202Abstract: Methods involving the sequential application of surfactants to improve fluid recovery and control fluid loss in conjunction with subterranean fracturing treatments are provided. In one embodiment, the methods comprise: introducing a first surfactant into a portion of a subterranean formation; allowing the first surfactant to increase the oil-wettability of at least a portion of a fracture face in the portion of the subterranean formation; ceasing the introduction of the first surfactant into the portion of the subterranean formation; introducing a second surfactant into the portion of the subterranean formation; and allowing the second surfactant to increase the water-wettability of the portion of the fracture face in the portion of the subterranean formation.Type: ApplicationFiled: September 26, 2013Publication date: July 28, 2016Applicant: Halliburton Energy Services, Inc.Inventors: Jim Weaver, Michael McCabe
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Patent number: 9379618Abstract: An energy efficient apparatus includes a switching device, a frequency dependent reactive device, and a control element is provided. The switching device is coupled to a source of electrical power and includes a pair of transistors and is adapted to receive a control signal and to produce an alternating current power signal. The frequency of the alternating current power signal is responsive to the control signal. The frequency dependent reactive device is electrically coupled to the pair of transistors for receiving the alternating current power signal and producing an output power signal. The frequency dependent reactive device is chosen to achieve a desired voltage of the output power signal relative to the frequency of the alternating current power signal. The control element senses an actual voltage of the direct current power signal and modifies the control signal delivered to achieve the desired voltage of the direct current power signal.Type: GrantFiled: September 16, 2014Date of Patent: June 28, 2016Assignee: ADVANCED CHARGING TECHNOLOGIES, LLCInventors: Michael H. Freeman, W. J. “Jim” Weaver, Jr., Mitchael C. Freeman, Robert Dieter, Brian Santee
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Publication number: 20160172866Abstract: A power device including a power circuit assembly, a first plug assembly, and a second plug assembly is described herein. The first plug assembly is coupled to the power circuit assembly for transmitting power from a power source to the power circuit assembly at a first voltage. The second plug assembly is coupled to the power circuit assembly for controllably transmitting power from the power source to the power circuit assembly at a second voltage and at a third voltage.Type: ApplicationFiled: October 5, 2015Publication date: June 16, 2016Inventors: W.J. "Jim" Weaver, JR., Michael H. Freeman, Michael C. Freeman, Robert Dieter, Brian Santee
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Publication number: 20160156277Abstract: An energy efficient apparatus includes a switching device, a frequency dependent reactive device, and a control element is provided. The switching device is coupled to a source of electrical power and includes a pair of transistors and is adapted to receive a control signal and to produce an alternating current power signal. The frequency of the alternating current power signal is responsive to the control signal. The frequency dependent reactive device is electrically coupled to the pair of transistors for receiving the alternating current power signal and producing an output power signal. The frequency dependent reactive device is chosen to achieve a desired voltage of the output power signal relative to the frequency of the alternating current power signal. The control element senses an actual voltage of the direct current power signal and modifies the control signal delivered to achieve the desired voltage of the direct current power signal.Type: ApplicationFiled: September 28, 2015Publication date: June 2, 2016Inventors: W.J. "Jim" Weaver, JR., Michael H. Freeman, Michael C. Freeman, Robert Dieter, Brian Santee
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Publication number: 20160134198Abstract: An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes an input terminal configured to receive an input power signal, an output terminal configured to provide an output power signal, and a plurality of voltage reduction circuit cells coupled between the input terminal and the output terminal. Each of the voltage reduction circuit cells includes a pair of flyback capacitors, a switching circuit, and a hold capacitor. The switching device is configured to operate the corresponding voltage reduction circuit cell at a charging phase and at a discharging phase. The plurality of voltage reduction circuit cells are configured to deliver the output power signal having a voltage level that is less than the voltage level of the input power signal.Type: ApplicationFiled: January 15, 2016Publication date: May 12, 2016Inventors: Michael H. Freeman, W.J. "Jim" Weaver, JR., Mitchael C. Freeman, Robert Dieter, Andrea Baschirotto, Piero Malcovati, Marco Grassi, Glenn Noufer, Randall L. Sandusky, Neaz E. Farooqi, Jim Devoy, Silvia Jaeckel, Madison Hayes Yarbro Freeman
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Publication number: 20160126852Abstract: An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes an input terminal configured to receive an input power signal, an output terminal configured to provide an output power signal, and a forward converter coupled to the input and output terminals. The forward converter includes a transformer, and a primary side regulation circuit coupled to a primary side of the transformer. The primary side regulation circuit includes a switching device coupled to the primary side, a current sense circuit configured to sense a current level on the primary side, and a controller configured to generate a pulse-width modulated control signal delivered to the switching device as a function of the sensed current level to regulate the transformer to deliver the output power signal at a desired voltage level.Type: ApplicationFiled: January 15, 2016Publication date: May 5, 2016Inventors: Michael H. Freeman, W.J. "Jim" Weaver, JR., Mitchael C. Freeman, Robert Dieter, Andrea Baschirotto, Piero Malcovati, Marco Grassi, Glenn Noufer, Randall L. Sandusky, Neaz E. Farooqi, Jim Devoy, Silvia Jaeckel, Madison Hayes Yarbro Freeman
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Publication number: 20160126851Abstract: An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes a voltage reduction circuit cell that includes a first capacitor, a second capacitor, a switching circuit, and a hold capacitor. The switching circuit includes a plurality of switching devices that are coupled to the first and the second capacitors for delivering power from an input terminal to an output terminal. The plurality of switching devices includes at least two switching devices that are coupled to ground. The voltage reduction circuit cell also includes a controller for operating the switching circuit in a plurality of operational modes to deliver an output power signal at a desired voltage level.Type: ApplicationFiled: January 15, 2016Publication date: May 5, 2016Inventors: Michael H. Freeman, W.J. "Jim" Weaver, JR., Mitchael C. Freeman, Robert Dieter, Andrea Baschirotto, Piero Malcovati, Marco Grassi, Glenn Noufer, Randall L. Sandusky, Neaz E. Farooqi, Jim Devoy, Silvia Jaeckel, Madison Hayes Yarbro Freeman
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Publication number: 20160118905Abstract: An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes an input terminal configured to receive an input power signal, an output terminal configured to provide an output power signal, and a plurality of voltage reduction circuit cells coupled between the input terminal and the output terminal. Each of the voltage reduction circuit cells includes a pair of flyback capacitors, a switching circuit, and a hold capacitor. The switching device is configured to operate the corresponding voltage reduction circuit cell at a charging phase and at a discharging phase. The plurality of voltage reduction circuit cells are configured to deliver the output power signal having a voltage level that is less than the voltage level of the input power signal.Type: ApplicationFiled: October 28, 2015Publication date: April 28, 2016Inventors: Michael H. Freeman, W.J. "Jim" Weaver, JR., Mitchael C. Freeman, Robert Dieter, Andrea Baschirotto, Piero Malcovati, Marco Grassi, Glenn Noufer, Randall L. Sandusky, Neaz Farooqi, Jim Devoy, Silvia Jaeckel, Madison Hayes Yarbro Freeman
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Publication number: 20160118906Abstract: An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes an input terminal configured to receive an input power signal, an output terminal configured to provide an output power signal, and a forward converter coupled to the input and output terminals. The forward converter includes a transformer, and a primary side regulation circuit coupled to a primary side of the transformer. The primary side regulation circuit includes a switching device coupled to the primary side, a current sense circuit configured to sense a current level on the primary side, and a controller configured to generate a pulse-width modulated control signal delivered to the switching device as a function of the sensed current level to regulate the transformer to deliver the output power signal at a desired voltage level.Type: ApplicationFiled: October 28, 2015Publication date: April 28, 2016Inventors: Michael H. Freeman, W.J. "Jim" Weaver, JR., Mitchael C. Freeman, Robert Dieter, Andrea Baschirotto, Piero Malcovati, Marco Grassi, Glenn Noufer, Randall L. Sandusky, Neaz Farooqi, Jim Devoy, Silvia Jaeckel, Madison Hayes Yarbro Freeman
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Publication number: 20160116925Abstract: An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes a voltage reduction circuit cell that includes a first capacitor, a second capacitor, a switching circuit, and a hold capacitor. The switching circuit includes a plurality of switching devices that are coupled to the first and the second capacitors for delivering power from an input terminal to an output terminal. The plurality of switching devices includes at least two switching devices that are coupled to ground. The voltage reduction circuit cell also includes a controller for operating the switching circuit in a plurality of operational modes to deliver an output power signal at a desired voltage level.Type: ApplicationFiled: October 28, 2015Publication date: April 28, 2016Inventors: Michael H. Freeman, W.J. "Jim" Weaver, JR., Mitchael C. Freeman, Robert Dieter, Andrea Baschirotto, Piero Malcovati, Marco Grassi, Glenn Noufer, Randall L. Sandusky, Neaz Farooqi, Jim Devoy, Silvia Jaeckel, Madison Hayes Yarbro Freeman
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Patent number: 9312776Abstract: An electrical circuit for providing electrical power for use in powering electronic devices is described herein. The electrical circuit includes a primary power circuit and a secondary power circuit. The primary power circuit receives an alternating current (AC) input power signal from an electrical power source and generates an intermediate direct current (DC) power signal. The intermediate DC power signal is generated at a first voltage level that is less than a voltage level of the AC input power signal. The secondary power circuit receives the intermediate DC power signal from the primary power circuit and delivers an output DC power signal to an electronic device. The output DC power signal is delivered at an output voltage level that is less than the first voltage level of the intermediate DC power signal.Type: GrantFiled: April 8, 2015Date of Patent: April 12, 2016Assignee: ADVANCED CHARGING TECHNOLOGIES, LLCInventors: Michael H. Freeman, W. J. “Jim” Weaver, Jr., Mitchael C. Freeman, Robert Dieter, Glenn Noufer, Randall L. Sandusky, Jim Sesters, Neaz E. Farooqi, Jim Devoy, Jay Cormier, Silvia Jaeckel, Andrea Baschirotto, Piero Malcovati
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Patent number: 9270061Abstract: A power device including a power circuit assembly, a first plug assembly, and a second plug assembly is described herein. The first plug assembly is coupled to the power circuit assembly for transmitting power from a power source to the power circuit assembly at a first voltage. The second plug assembly is coupled to the power circuit assembly for controllably transmitting power from the power source to the power circuit assembly at a second voltage and at a third voltage.Type: GrantFiled: October 15, 2014Date of Patent: February 23, 2016Assignee: ADVANCED CHARGING TECHNOLOGIES, LLCInventors: W. J. Jim Weaver, Jr., Michael H. Freeman, Mitchael C. Freeman, Robert Dieter, Brian Santee
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Patent number: 9246406Abstract: An energy efficient apparatus includes a switching device, a frequency dependent reactive device, and a control element is provided. The switching device is coupled to a source of electrical power and includes a pair of transistors and is adapted to receive a control signal and to produce an alternating current power signal. The frequency of the alternating current power signal is responsive to the control signal. The frequency dependent reactive device is electrically coupled to the pair of transistors for receiving the alternating current power signal and producing an output power signal. The frequency dependent reactive device is chosen to achieve a desired voltage of the output power signal relative to the frequency of the alternating current power signal. The control element senses an actual voltage of the direct current power signal and modifies the control signal delivered to achieve the desired voltage of the direct current power signal.Type: GrantFiled: October 1, 2012Date of Patent: January 26, 2016Assignee: ADVANCED CHARGING TECHNOLOGIES, LLCInventors: Michael H. Freeman, W. J. “Jim” Weaver, Jr., Mitchael C. Freeman, Robert Dieter, Brian Santee