Patents by Inventor Mark A. Lancaster

Mark A. Lancaster 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).

  • Patent number: 11591872
    Abstract: A setting tool having a tool body, a chamber configured to contain a non-explosive fuel configured to generate gas and plasma, a cavity, a bleed sub located between the chamber and the cavity. The bleed sub is configured to bleed pressure from the chamber to the cavity after the non-explosive fuel has been initiated. The setting tool also includes a piston disposed within the cavity oriented to stroke in a first direction after the non-explosive fuel has been initiated. The piston may divide the cavity into an upper volume that may receive the pressure increase from the bleed sub and a lower volume. The setting tool may also include a shaft mechanically connected to the piston within the lower volume of the cavity. The shaft may include a dampening conduit configured to drain a fluid from the lower volume after the non-explosive fuel has been initiated.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: February 28, 2023
    Assignee: Robertson Intellectual Properties, LLC
    Inventors: Michael C. Robertson, Douglas J. Streibich, Antony F. Grattan, Roy L. Sparkman, Mark Lancaster
  • Publication number: 20210164308
    Abstract: A setting tool having a tool body, a chamber configured to contain a non-explosive fuel configured to generate gas and plasma, a cavity, a bleed sub located between the chamber and the cavity. The bleed sub is configured to bleed pressure from the chamber to the cavity after the non-explosive fuel has been initiated. The setting tool also includes a piston disposed within the cavity oriented to stroke in a first direction after the non-explosive fuel has been initiated. The piston may divide the cavity into an upper volume that may receive the pressure increase from the bleed sub and a lower volume. The setting tool may also include a shaft mechanically connected to the piston within the lower volume of the cavity. The shaft may include a dampening conduit configured to drain a fluid from the lower volume after the non-explosive fuel has been initiated.
    Type: Application
    Filed: January 25, 2021
    Publication date: June 3, 2021
    Applicant: Robertson Intellectual Properties, LLC
    Inventors: Michael C. Robertson, Douglas J. Streibich, Antony F. Grattan, Roy L. Sparkman, Mark Lancaster
  • Patent number: 10900309
    Abstract: A setting tool for deploying a downhole tool within a wellbore is described herein. The setting tool uses an in situ non-explosive gas-generating power source to generate high-pressure gas, which drives a mechanical linkage to actuate the deployment of the downhole tool. According to certain embodiments the non-explosive gas-generating setting tool contains no hydraulic stages and may contain only a single piston. The setting tool may be fitted to provide different stroke lengths and can provide usable power over a greater percentage of its stroke length, compared to setting tools using explosive/pyrotechnic power sources. Methods of using a non-explosive gas-generating setting tool to deploy a downhole tool within a wellbore are also disclosed.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: January 26, 2021
    Assignee: Robertson Intellectual Properties, LLC
    Inventors: Michael C. Robertson, Douglas J. Streibich, Antony F. Grattan, Roy L. Sparkman, Mark Lancaster
  • Patent number: 10720934
    Abstract: Time-interleaved analog-to-digital converters (ADCs) and related methods are disclosed that are based upon multiplying digital-to-analog converters (MDACs). For one ADC embodiment, a sample-and-hold circuit receives an input signal and outputs a voltage that represents the input signal. An MDAC receives the voltage, outputs an N-bit digital value, and outputs a current that represents the voltage. A phased current generator receives the current and outputs time-interleaved currents that are based upon the current. An array of sub-ADCs receive the time-interleaved currents, and each sub-ADC outputs a digital value. The digital values from the array of sub-ADCs are then combined and to output an M-bit digital value. The N-bit digital value and the M-bit digital value provide a digital conversion output for the ADC.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: July 21, 2020
    Assignee: NXP USA, Inc.
    Inventors: Brandt Braswell, George Kunnen, Mark Lancaster
  • Patent number: 10581446
    Abstract: Current controlled multiplying digital-to-analog converters (MDACs) and related methods are disclosed for time-interleaved analog-to-digital converters (ADCs). For one embodiment, a circuit includes an MDAC having an amplifier that converts a voltage to an output current, a variable load that is dependent upon a digital value and that controls the output current from the amplifier, and an array of comparators that receive the voltage and output the digital value to the variable load. The digital value represents at least a portion of a digital conversion of the voltage. Further, the circuit can include a phased current generator that receives the output current and generates time-interleaved currents where each time-interleaved current is a sampled copy of the output current.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: March 3, 2020
    Assignee: NXP USA, Inc.
    Inventors: Brandt Braswell, George Kunnen, Mark Lancaster
  • Patent number: 10574250
    Abstract: Digital calibration systems and related methods are disclosed for multi-stage analog-to-digital converters (ADCs). For one embodiment, a multi-stage ADC includes an initial ADC, an additional ADC, and calibration logic. The initial ADC generates an output signal and N-bit digital values that are based upon an input signal. The additional ADC receives the output signal from the initial ADC and generates M-bit digital values that are based upon the output signal. The calibration logic receives the N-bit digital values and the M-bit digital values and generates correction values. The correction values are based upon differences between maximum values and minimum values for M-bit digital values associated with different regions determined by the N-bit digital values. Digital conversion outputs for the multi-stage ADC are provided as combinations of the N-bit digital values and the M-bit digital values corrected with the correction values.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: February 25, 2020
    Assignee: NXP USA, Inc.
    Inventors: Brandt Braswell, George Kunnen, Mark Lancaster
  • Publication number: 20190330946
    Abstract: A setting tool for deploying a downhole tool within a wellbore is described herein. The setting tool uses an in situ non-explosive gas-generating power source to generate high-pressure gas, which drives a mechanical linkage to actuate the deployment of the downhole tool. According to certain embodiments the non-explosive gas-generating setting tool contains no hydraulic stages and may contain only a single piston. The setting tool may be fitted to provide different stroke lengths and can provide usable power over a greater percentage of its stroke length, compared to setting tools using explosive/pyrotechnic power sources. Methods of using a non-explosive gas-generating setting tool to deploy a downhole tool within a wellbore are also disclosed.
    Type: Application
    Filed: April 1, 2019
    Publication date: October 31, 2019
    Applicant: Robertson Intellectual Properties, LLC
    Inventors: Michael C. Robertson, Douglas J. Streibich, Antony F. Grattan, Roy L. Sparkman, Mark Lancaster
  • Patent number: 10246961
    Abstract: A setting tool for deploying a downhole tool within a wellbore is described herein. The setting tool uses an in situ non-explosive gas-generating power source to generate high-pressure gas, which drives a mechanical linkage to actuate the deployment of the downhole tool. According to certain embodiments the non-explosive gas-generating setting tool contains no hydraulic stages and may contain only a single piston. The setting tool may be fitted to provide different stroke lengths and can provide usable power over a greater percentage of its stroke length, compared to setting tools using explosive/pyrotechnic power sources. Methods of using a non-explosive gas-generating setting tool to deploy a downhole tool within a wellbore are also disclosed.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: April 2, 2019
    Assignee: Robertson Intellectual Properties, LLC
    Inventors: Michael C. Robertson, Douglas J. Streibich, Antony F. Grattan, Roy L. Sparkman, Mark Lancaster
  • Patent number: 10205307
    Abstract: Monitoring may be provided. First, data may be received comprising a current location of a point on a span of conductor or a current angle of a section of the span of conductor. Next, a sag may be calculated of the span of conductor based upon the current location of the point on the span of conductor and the current angle of the section of the span of conductor. An alert may then be provided when the calculated sag is outside of a predetermined range for the span.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: February 12, 2019
    Assignee: Southwire Company, LLC
    Inventor: Mark Lancaster
  • Publication number: 20180238890
    Abstract: The subject invention concerns methods using a panel of proteins to detect, diagnose, and monitor therapy during treatment of ovarian cancer in a female patient. The proteins were identified using proteomics analyses of plasma samples obtained preoperatively from ovarian cancer patients versus those of healthy control women. Such a panel has utility for the diagnosis of ovarian cancer, screening for ovarian cancer and possibly therapeutic monitoring.
    Type: Application
    Filed: September 28, 2017
    Publication date: August 23, 2018
    Inventors: REBECCA SUTPHEN, JOHNATHAN MARK LANCASTER
  • Publication number: 20180207191
    Abstract: Disclosed are identified and successfully targeted microRNAs (miRNAs) associated with human cancer cell line response to a range of anti-cancer agents. The strategy of integrating in vitro miRNA expression and drug sensitivity data not only aid in the characterization of determinants of cytotoxic response, but also in the identification of novel therapeutic targets.
    Type: Application
    Filed: August 13, 2017
    Publication date: July 26, 2018
    Inventors: JOHNATHAN MARK LANCASTER, YIN XIONG, NING CHEN
  • Publication number: 20180197658
    Abstract: The present invention discloses electrical cables containing a cable core and a plurality of conductive elements surrounding the cable core. The cable core contains at least one composite core, and each composite core contains a rod which contains a plurality of unidirectionally aligned fiber rovings embedded within a thermoplastic polymer matrix, and surrounded by a capping layer.
    Type: Application
    Filed: March 9, 2018
    Publication date: July 12, 2018
    Inventors: Allan Daniel, Paul Springer, Yuhsin Hawig, Mark Lancaster, David W. Eastep, Sherri M. Nelson, Tim Tibor, Tim Regan, Michael L. Wesley
  • Patent number: 10020094
    Abstract: An electric conductor may be provided. The electric conductor may comprise a conductor core and a plurality of conductor strands wrapped around the conductor core. The conductor core may comprise a plurality of core strands comprising an overall number of strands. The plurality of core strands may comprise a first portion of core strands and a second portion of core strands. The first portion of core strands may comprise a first number of strands. The first portion of core strands may comprise steel. The second portion of core strands may comprise a second number of strands. The second portion of core strands may comprise a composite material. A ratio of the first number of strands to the overall number of strands and a ratio of the second number of strands to the overall number of strands may be optimized to give the conductor core a predetermined characteristic.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: July 10, 2018
    Assignee: Southwire Company, LLC
    Inventor: Mark A. Lancaster
  • Publication number: 20170256338
    Abstract: The present invention discloses electrical cables containing a cable core and a plurality of conductive elements surrounding the cable core. The cable core contains at least one composite core, and each composite core contains a rod which contains a plurality of unidirectionally aligned fiber rovings embedded within a thermoplastic polymer matrix, and surrounded by a capping layer.
    Type: Application
    Filed: May 16, 2017
    Publication date: September 7, 2017
    Inventors: Allan Daniel, Paul Springer, Yuhsin Hawig, Mark Lancaster, David W. Eastep, Sherri M. Nelson, Tim Tibor, Tim Regan, Michael L. Wesley
  • Patent number: 9685257
    Abstract: The present invention discloses electrical cables containing a cable core and a plurality of conductive elements surrounding the cable core. The cable core contains at least one composite core, and each composite core contains a rod which contains a plurality of unidirectionally aligned fiber rovings embedded within a thermoplastic polymer matrix, and surrounded by a capping layer.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: June 20, 2017
    Assignee: Southwire Company, LLC
    Inventors: Allan Daniel, Paul Springer, Yuhsin Hawig, Mark Lancaster, David W. Eastep, Sherri M. Nelson, Tim Tibor, Tim Regan, Michael L. Wesley
  • Patent number: 9634681
    Abstract: The embodiments described herein provide analog-to-digital converters (ADCs) and systems and methods for calibrating ADCs, including ADCs with poorly characterized nonlinearities that cannot be effectively calibrated with traditional calibration techniques. In general, the embodiments described herein calibrate by measuring output values from an ADC with a known calibration input values being applied. The measured output values are used to determine localized polynomial interpolants. Each of the determined localized polynomial interpolants is then evaluated at an uncorrected output value, and the evaluated localized polynomial interpolants are then used to generate correction values. These correction values can then be used to calibrate the ADC during later operation. Such a calibration technique can provide effective calibration for a variety of ADCs, including ADCs that use inverter-based voltage-to-current (VI) converters and current-controlled ring oscillators.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: April 25, 2017
    Assignee: NXP USA, Inc.
    Inventors: George R. Kunnen, Mark A. Lancaster
  • Publication number: 20170025202
    Abstract: An electric conductor may be provided. The electric conductor may comprise a conductor core and a plurality of conductor strands wrapped around the conductor core. The conductor core may comprise a plurality of core strands comprising an overall number of strands. The plurality of core strands may comprise a first portion of core strands and a second portion of core strands. The first portion of core strands may comprise a first number of strands. The first portion of core strands may comprise steel. The second portion of core strands may comprise a second number of strands. The second portion of core strands may comprise a composite material. A ratio of the first number of strands to the overall number of strands and a ratio of the second number of strands to the overall number of strands may be optimized to give the conductor core a predetermined characteristic.
    Type: Application
    Filed: October 10, 2016
    Publication date: January 26, 2017
    Inventor: Mark A. Lancaster
  • Patent number: 9548753
    Abstract: The embodiments described herein provide calibration systems and methods for mixed-signal devices. Specifically, the embodiments provide systems and methods for calibrating mixed-signal devices that can facilitate effective calibration of such mixed-signal devices, including mixed-signal devices with poorly characterized nonlinearities that cannot be effectively calibrated with traditional calibration techniques. In general, the embodiments described herein calibrate by measuring output values from a mixed-signal device with a known calibration input values being applied. The measured output values are used to determine localized polynomial interpolants. Each of the determined localized polynomial interpolants is then evaluated at an uncorrected output value, and the evaluated localized polynomial interpolants are then used to generate correction values.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: January 17, 2017
    Assignee: NXP USA, Inc.
    Inventors: George R. Kunnen, Mark A. Lancaster
  • Publication number: 20160351300
    Abstract: The present invention discloses electrical cables containing a cable core and a plurality of conductive elements surrounding the cable core. The cable core contains at least one composite core, and each composite core contains a rod which contains a plurality of unidirectionally aligned fiber rovings embedded within a thermoplastic polymer matrix, and surrounded by a capping layer.
    Type: Application
    Filed: August 15, 2016
    Publication date: December 1, 2016
    Inventors: Allan Daniel, Paul Springer, Yuhsin Hawig, Mark Lancaster, David W. Eastep, Sherri M. Nelson, Tim Tibor, Tim Regan, Michael L. Wesley
  • Patent number: 9490050
    Abstract: An electric conductor may be provided. The electric conductor may comprise a conductor core and a plurality of conductor strands wrapped around the conductor core. The conductor core may comprise a plurality of core strands comprising an overall number of strands. The plurality of core strands may comprise a first portion of core strands and a second portion of core strands. The first portion of core strands may comprise a first number of strands. The first portion of core strands may comprise steel. The second portion of core strands may comprise a second number of strands. The second portion of core strands may comprise a composite material. A ratio of the first number of strands to the overall number of strands and a ratio of the second number of strands to the overall number of strands may be optimized to give the conductor core a predetermined characteristic.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: November 8, 2016
    Assignee: Southwire Company, LLC
    Inventor: Mark A. Lancaster