Patents by Inventor Steven Christopher

Steven Christopher 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).

  • Publication number: 20180261995
    Abstract: An electrical device includes a first terminal structured to electrically connect to a power source; a second terminal structured to electrically connect to a load; a voltage sensor electrically connected to a point between the first and second terminals and being structured to sense a voltage at the point between the first and second terminals; a switch electrically connected between the first terminal and the second terminal; and a control unit structured to detect a power quality event in the power flowing between the first and second terminals based on the sensed voltage and to control a state of the switch based on the detected power quality event.
    Type: Application
    Filed: May 15, 2018
    Publication date: September 13, 2018
    Applicant: EATON INTELLIGENT POWER LIMITED
    Inventors: CHARLES JOHN LUEBKE, BIRGER PAHL, STEVEN CHRISTOPHER SCHMALZ
  • Patent number: 10060964
    Abstract: An arc fault circuit interrupter detector circuit including a super regenerative high frequency receiver is described herein. In one exemplary, non-limiting embodiment, a current measure component determines that a current noise signal within a circuit breaker is occurring at a particular frequency of interest. The super regenerative high frequency receiver receives the current noise signal and, via an oscillator circuit, causes the signal to ramp to a quench voltage, dissipate, and repeat. A microcontroller in communication with the super regenerative high frequency receiver measures a time period of the oscillator circuit's oscillations, and determines an amplitude of the current noise signal based, at least in part, on the time period. If it is determined that the amplitude of the input current signal at the frequency of interest corresponds to an arc fault event, a trip signal is generated to trip the circuit, quenching the arc fault event.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: August 28, 2018
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Steven Christopher Schmalz, David Lee McClanahan, Charles John Luebke
  • Publication number: 20180230158
    Abstract: The invention concerns compounds of Formula (I) or pharmaceutically-acceptable salts thereof, wherein R1, R2 and n have any of the meanings defined hereinbefore in the description; processes for their preparation, pharmaceutical compositions containing them and their use as anti-proliferative and/or cell-killing agents.
    Type: Application
    Filed: April 11, 2018
    Publication date: August 16, 2018
    Applicant: AstraZeneca AB
    Inventors: Robert Hugh BRADBURY, Alfred Arthur Rabow, Michael James Waring, James Francis McCabe, Steven Christopher Glossop, Arshed Mahmood, Zoe Ann Cotter
  • Patent number: 10003185
    Abstract: An electrical device includes a first terminal structured to electrically connect to a power source; a second terminal structured to electrically connect to a load; a voltage sensor electrically connected to a point between the first and second terminals and being structured to sense a voltage at the point between the first and second terminals; a switch electrically connected between the first terminal and the second terminal; and a control unit structured to detect a power quality event in the power flowing between the first and second terminals based on the sensed voltage and to control a state of the switch based on the detected power quality event.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: June 19, 2018
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Charles John Luebke, Birger Pahl, Steven Christopher Schmalz
  • Publication number: 20180167037
    Abstract: A linearization circuit that reduces intermodulation distortion in an amplifier output receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency. The linearization circuit generates an envelope signal based at least in part on a power level of the first signal and adjusts a magnitude of the difference signal based on the envelope signal. When the amplifier receives the first signal at an input terminal and the adjusted signal at a second terminal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation products that result from the intermodulation of the first frequency and the second frequency.
    Type: Application
    Filed: November 20, 2017
    Publication date: June 14, 2018
    Inventors: Yu Zhu, Boshi Jin, Steven Christopher Sprinkle, Florinel G. Balteanu, Oleksiy Klimashov, Dylan Charles Bartle, Paul T. DiCarlo
  • Publication number: 20180159478
    Abstract: Disclosed herein are power amplification (PA) systems configured to amplify a signal, such as a radio-frequency signal. The PA system includes a plurality of power amplifiers that are configured to amplify a signal received at a signal input and to output the amplified signal at a signal output. The power amplifiers are configured to receive a supply voltage that is a combination of a battery voltage and an envelope tracking signal. The PA system includes a PA controller configured to control the power amplifiers based at least in part on the battery voltage or a power output of the power amplifiers. The PA controller can be configured to alter impedance matching components of the PA system to reconfigure a load line of the power amplifiers.
    Type: Application
    Filed: October 31, 2017
    Publication date: June 7, 2018
    Inventors: Florinel G. Balteanu, Paul T. DiCarlo, Boshi Jin, Steven Christopher Sprinkle, David Scott Whitefield
  • Patent number: 9979885
    Abstract: An electronic device comprises a display and a 360° variable planar panoramic video controller to present on the display a capture screen to guide the user to capture a near-seamless 360° panoramic video image. Simultaneously with the completion of the video capture, a 360° panoramic zoetropic video image is assembled from still images selected at intervals during the 360° continuous directional physical rotation of the electronic capture device.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: May 22, 2018
    Inventors: Steven Christopher Sparks, John William Kastelic, Scott William Lootens
  • Patent number: 9962623
    Abstract: The present invention relates to processes to remove butanol and other product alcohols from a fermentation broth employing vacuum vaporization.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: May 8, 2018
    Assignee: Butamax Advanced Biofuels LLC
    Inventors: Joseph J. Zaher, Steven Christopher Barr, Robert W. Sylvester, Aidan Hurley
  • Patent number: 9963508
    Abstract: In accordance with the present invention, there are provided fully human monoclonal antibodies against human cytotoxic T-lymphocyte antigen 4 (CTLA-4). Nucleotide sequences encoding and amino acid sequences comprising heavy and light chain immunoglobulin molecules, particularly contiguous heavy and light chain sequences spanning the complementarity determining regions (CDRs), specifically from within FR1 and/or CDR1 through CDR3 and/or within FR4, are provided. Further provided are antibodies having similar binding properties and antibodies (or other antagonists) having similar functionality as antibodies disclosed herein.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: May 8, 2018
    Assignees: AMGEN FREMONT INC., PFIZER INC.
    Inventors: Douglas Charles Hanson, Mark Joseph Neveu, Eileen Elliott Mueller, Jeffrey Herbert Hanke, Steven Christopher Gilman, C. Geoffrey Davis, Jose Ramon Corvalan
  • Patent number: 9944650
    Abstract: The invention concerns compounds of Formula (I) (Formula (I)) or pharmaceutically-acceptable salts thereof, wherein R1, R2 and n have any of the meanings defined herein before in the description; processes for their preparation, pharmaceutical compositions containing them and their use as anti-proliferative and/or cell-killing agents.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: April 17, 2018
    Assignee: AstraZeneca AB
    Inventors: Robert Hugh Bradbury, Alfred Arthur Rabow, Michael James Waring, James Francis McCabe, Steven Christopher Glossop, Arshed Mahmood, Zoe Ann Cotter
  • Patent number: 9931723
    Abstract: A collar member is for a collar assembly of a cutting system and method. The cutting system has a spindle and a cutting tool coupled to the spindle. The collar assembly includes a number of components and a gas flow system having a number of gas flow delivery apparatus and a number of conduits. The collar member includes a support portion structured to be coupled to the spindle, and a chamber portion extending from the support portion and being structured to be coupled to each of the number of components, the number of gas flow delivery apparatus, and the number of conduits. The support portion has a side portion having an edge portion defining a thru hole in order to form a passageway from an interior of the support portion to an exterior thereof.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: April 3, 2018
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Darron Robert Mohr, Christopher Alan Arnold, Steven Christopher Randall, Timothy Arnold Thompson
  • Patent number: 9893682
    Abstract: A linearization circuit that reduces intermodulation distortion in an amplifier output receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency. The linearization circuit generates an envelope signal based at least in part on a power level of the first signal and adjusts a magnitude of the difference signal based on the envelope signal. When the amplifier receives the first signal at an input terminal and the adjusted signal at a second terminal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation products that result from the intermodulation of the first frequency and the second frequency.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: February 13, 2018
    Assignee: Skyworks Solutions, Inc.
    Inventors: Yu Zhu, Boshi Jin, Steven Christopher Sprinkle, Florinel G. Balteanu, Oleksiy Klimashov, Dylan Charles Bartle, Paul T. DiCarlo
  • Publication number: 20180015582
    Abstract: A collar member is for a collar assembly of a cutting system and method. The cutting system has a spindle and a cutting tool coupled to the spindle. The collar assembly includes a number of components and a gas flow system having a number of gas flow delivery apparatus and a number of conduits. The collar member includes a support portion structured to be coupled to the spindle, and a chamber portion extending from the support portion and being structured to be coupled to each of the number of components, the number of gas flow delivery apparatus, and the number of conduits. The support portion has a side portion having an edge portion defining a thru hole in order to form a passageway from an interior of the support portion to an exterior thereof.
    Type: Application
    Filed: July 13, 2016
    Publication date: January 18, 2018
    Applicant: EATON CORPORATION
    Inventors: DARRON ROBERT MOHR, CHRISTOPHER ALAN ARNOLD, STEVEN CHRISTOPHER RANDALL, TIMOTHY ARNOLD THOMPSON
  • Patent number: 9806676
    Abstract: Disclosed herein are power amplification (PA) systems configured to amplify a signal, such as a radio-frequency signal. The PA system includes a plurality of power amplifiers that are configured to amplify a signal received at a signal input and to output the amplified signal at a signal output. The power amplifiers are configured to receive a supply voltage that is a combination of a battery voltage and an envelope tracking signal. The PA system includes a PA controller configured to control the power amplifiers based at least in part on the battery voltage or a power output of the power amplifiers. The PA controller can be configured to alter impedance matching components of the PA system to reconfigure a load line of the power amplifiers.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: October 31, 2017
    Assignee: Skyworks Solutions, Inc.
    Inventors: Florinel G. Balteanu, Paul T. DiCarlo, Boshi Jin, Steven Christopher Sprinkle, David Scott Whitefield
  • Patent number: 9797940
    Abstract: An AC arc fault detection module includes an LF current section, an LF voltage section, and an HF current section having a plurality of outputs, each output being associated with a respective one of a plurality of frequency sub-bands. The HF current section is structured to, for each of the frequency sub-bands, (i) detect a rise in energy of the frequency sub-band above a first predetermined threshold level for at least a certain amount of time and (ii) cause the associated output to indicate a rise in energy detection in response to detecting the rise in energy above the associated threshold level for at least the associated certain amount of time. The module includes a processing device structured to determine whether an AC arc fault has occurred based on the outputs from the LF and HF current and LF voltage sections.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: October 24, 2017
    Assignee: EATON CORPORATION
    Inventors: David Kolker, Chaitanya Bhalwankar, Birger Pahl, Steven Christopher Schmalz, Archit Agarwal
  • Patent number: 9797941
    Abstract: A DC arc fault detection module includes an LF current section, an LF voltage section, and an HF current section having a plurality of outputs, each output being associated with a respective one of a plurality of frequency sub-bands. The HF current section is structured to, for each of the frequency sub-bands, (i) detect a rise in energy of the frequency sub-band above a first predetermined threshold level for at least a certain amount of time and (ii) cause the associated output to indicate a rise in energy detection in response to detecting the rise in energy above the associated threshold level for at least the associated certain amount of time. The module includes a processing device structured to determine whether a DC arc fault has occurred based on the outputs from the LF and HF current and LF voltage sections.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: October 24, 2017
    Assignee: EATON CORPORATION
    Inventors: David Kolker, Chaitanya Bhalwankar, Birger Pahl, Steven Christopher Schmalz, Archit Agarwal
  • Publication number: 20170298393
    Abstract: The present invention relates to processes for recovering butanol produced in a fermentative process using, for example, an ethanol production plant which has been reversibly-retrofitted for butanol production, that is, the ethanol production plant may be converted for butanol production, but can also revert to an ethanol production. The present invention also relates to processes for recovering butanol produced in a fermentative process in a butanol production plant that may be converted to ethanol production plant.
    Type: Application
    Filed: July 3, 2017
    Publication date: October 19, 2017
    Inventors: Steven Christopher Barr, Robert W. Sylvester, Joseph J. Zaher
  • Patent number: 9774300
    Abstract: Transformer-based Doherty power amplifier (PA). In some embodiments, a Doherty PA can include a carrier amplification path having an output that includes a carrier transformer, and a peaking amplification path having an output that includes a peaking transformer. The Doherty PA can further include a combiner configured to combine the outputs of the carrier and peaking amplification paths into an output node. The combiner can include a quarter-wave circuit implemented between the carrier and peaking transformers.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: September 26, 2017
    Assignee: Skyworks Solutions, Inc.
    Inventors: Boshi Jin, Jing-Hwa Chen, Paul T. DiCarlo, Steven Christopher Sprinkle, Florinel G. Balteanu, David Scott Whitefield
  • Publication number: 20170269139
    Abstract: An arc fault circuit interrupter detector circuit including a super regenerative high frequency receiver is described herein. In one exemplary, non-limiting embodiment, a current measure component determines that a current noise signal within a circuit breaker is occurring at a particular frequency of interest. The super regenerative high frequency receiver receives the current noise signal and, via an oscillator circuit, causes the signal to ramp to a quench voltage, dissipate, and repeat. A microcontroller in communication with the super regenerative high frequency receiver measures a time period of the oscillator circuit's oscillations, and determines an amplitude of the current noise signal based, at least in part, on the time period. If it is determined that the amplitude of the input current signal at the frequency of interest corresponds to an arc fault event, a trip signal is generated to trip the circuit, quenching the arc fault event.
    Type: Application
    Filed: March 21, 2016
    Publication date: September 21, 2017
    Applicant: EATON CORPORATION
    Inventors: STEVEN CHRISTOPHER SCHMALZ, DAVID LEE MCCLANAHAN, CHARLES JOHN LUEBKE
  • Patent number: 9768605
    Abstract: A DC arc fault detection module includes a current detecting section having at least one output, wherein the current detecting section is structured to determine whether at least one signal based on a current measured from a DC supply line exceeds at least one corresponding predetermined threshold level and cause the at least one output to indicate that the threshold level has been exceeded. The module also includes a processing device structured to: (i) receive the at least one output, (ii) determine whether an arc fault in the DC electrical system has occurred based on at least the at least one output, (iii) determine an estimation of background noise based on at least one signal indicative of a current on the DC supply line, and (iv) adjust the at least one corresponding predetermined threshold level based on the estimation of background noise.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: September 19, 2017
    Assignee: EATON CORPORATION
    Inventors: David Kolker, Chaitanya Bhalwankar, Birger Pahl, Steven Christopher Schmalz, Archit Agarwal